net/wireless/sme.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * SME code for cfg80211
   4  * both driver SME event handling and the SME implementation
   5  * (for nl80211's connect() and wext)
   6  *
   7  * Copyright 2009       Johannes Berg <johannes@sipsolutions.net>
   8  * Copyright (C) 2009   Intel Corporation. All rights reserved.
   9  * Copyright 2017       Intel Deutschland GmbH
  10  */
  11
  12 #include <linux/etherdevice.h>
  13 #include <linux/if_arp.h>
  14 #include <linux/slab.h>
  15 #include <linux/workqueue.h>
  16 #include <linux/wireless.h>
  17 #include <linux/export.h>
  18 #include <net/iw_handler.h>
  19 #include <net/cfg80211.h>
  20 #include <net/rtnetlink.h>
  21 #include "nl80211.h"
  22 #include "reg.h"
  23 #include "rdev-ops.h"
  24
  25 /*
  26  * Software SME in cfg80211, using auth/assoc/deauth calls to the
  27  * driver. This is is for implementing nl80211's connect/disconnect
  28  * and wireless extensions (if configured.)
  29  */
  30
  31 struct cfg80211_conn {
  32         struct cfg80211_connect_params params;
  33         /* these are sub-states of the _CONNECTING sme_state */
  34         enum {
  35                 CFG80211_CONN_SCANNING,
  36                 CFG80211_CONN_SCAN_AGAIN,
  37                 CFG80211_CONN_AUTHENTICATE_NEXT,
  38                 CFG80211_CONN_AUTHENTICATING,
  39                 CFG80211_CONN_AUTH_FAILED_TIMEOUT,
  40                 CFG80211_CONN_ASSOCIATE_NEXT,
  41                 CFG80211_CONN_ASSOCIATING,
  42                 CFG80211_CONN_ASSOC_FAILED,
  43                 CFG80211_CONN_ASSOC_FAILED_TIMEOUT,
  44                 CFG80211_CONN_DEAUTH,
  45                 CFG80211_CONN_ABANDON,
  46                 CFG80211_CONN_CONNECTED,
  47         } state;
  48         u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
  49         const u8 *ie;
  50         size_t ie_len;
  51         bool auto_auth, prev_bssid_valid;
  52 };
  53
  54 static void cfg80211_sme_free(struct wireless_dev *wdev)
  55 {
  56         if (!wdev->conn)
  57                 return;
  58
  59         kfree(wdev->conn->ie);
  60         kfree(wdev->conn);
  61         wdev->conn = NULL;
  62 }
  63
  64 static int cfg80211_conn_scan(struct wireless_dev *wdev)
  65 {
  66         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
  67         struct cfg80211_scan_request *request;
  68         int n_channels, err;
  69
  70         ASSERT_RTNL();
  71         ASSERT_WDEV_LOCK(wdev);
  72
  73         if (rdev->scan_req || rdev->scan_msg)
  74                 return -EBUSY;
  75
  76         if (wdev->conn->params.channel)
  77                 n_channels = 1;
  78         else
  79                 n_channels = ieee80211_get_num_supported_channels(wdev->wiphy);
  80
  81         request = kzalloc(sizeof(*request) + sizeof(request->ssids[0]) +
  82                           sizeof(request->channels[0]) * n_channels,
  83                           GFP_KERNEL);
  84         if (!request)
  85                 return -ENOMEM;
  86
  87         if (wdev->conn->params.channel) {
  88                 enum nl80211_band band = wdev->conn->params.channel->band;
  89                 struct ieee80211_supported_band *sband =
  90                         wdev->wiphy->bands[band];
  91
  92                 if (!sband) {
  93                         kfree(request);
  94                         return -EINVAL;
  95                 }
  96                 request->channels[0] = wdev->conn->params.channel;
  97                 request->rates[band] = (1 << sband->n_bitrates) - 1;
  98         } else {
  99                 int i = 0, j;
 100                 enum nl80211_band band;
 101                 struct ieee80211_supported_band *bands;
 102                 struct ieee80211_channel *channel;
 103
 104                 for (band = 0; band < NUM_NL80211_BANDS; band++) {
 105                         bands = wdev->wiphy->bands[band];
 106                         if (!bands)
 107                                 continue;
 108                         for (j = 0; j < bands->n_channels; j++) {
 109                                 channel = &bands->channels[j];
 110                                 if (channel->flags & IEEE80211_CHAN_DISABLED)
 111                                         continue;
 112                                 request->channels[i++] = channel;
 113                         }
 114                         request->rates[band] = (1 << bands->n_bitrates) - 1;
 115                 }
 116                 n_channels = i;
 117         }
 118         request->n_channels = n_channels;
 119         request->ssids = (void *)&request->channels[n_channels];
 120         request->n_ssids = 1;
 121
 122         memcpy(request->ssids[0].ssid, wdev->conn->params.ssid,
 123                 wdev->conn->params.ssid_len);
 124         request->ssids[0].ssid_len = wdev->conn->params.ssid_len;
 125
 126         eth_broadcast_addr(request->bssid);
 127
 128         request->wdev = wdev;
 129         request->wiphy = &rdev->wiphy;
 130         request->scan_start = jiffies;
 131
 132         rdev->scan_req = request;
 133
 134         err = rdev_scan(rdev, request);
 135         if (!err) {
 136                 wdev->conn->state = CFG80211_CONN_SCANNING;
 137                 nl80211_send_scan_start(rdev, wdev);
 138                 dev_hold(wdev->netdev);
 139         } else {
 140                 rdev->scan_req = NULL;
 141                 kfree(request);
 142         }
 143         return err;
 144 }
 145
 146 static int cfg80211_conn_do_work(struct wireless_dev *wdev,
 147                                  enum nl80211_timeout_reason *treason)
 148 {
 149         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 150         struct cfg80211_connect_params *params;
 151         struct cfg80211_assoc_request req = {};
 152         int err;
 153
 154         ASSERT_WDEV_LOCK(wdev);
 155
 156         if (!wdev->conn)
 157                 return 0;
 158
 159         params = &wdev->conn->params;
 160
 161         switch (wdev->conn->state) {
 162         case CFG80211_CONN_SCANNING:
 163                 /* didn't find it during scan ... */
 164                 return -ENOENT;
 165         case CFG80211_CONN_SCAN_AGAIN:
 166                 return cfg80211_conn_scan(wdev);
 167         case CFG80211_CONN_AUTHENTICATE_NEXT:
 168                 if (WARN_ON(!rdev->ops->auth))
 169                         return -EOPNOTSUPP;
 170                 wdev->conn->state = CFG80211_CONN_AUTHENTICATING;
 171                 return cfg80211_mlme_auth(rdev, wdev->netdev,
 172                                           params->channel, params->auth_type,
 173                                           params->bssid,
 174                                           params->ssid, params->ssid_len,
 175                                           NULL, 0,
 176                                           params->key, params->key_len,
 177                                           params->key_idx, NULL, 0);
 178         case CFG80211_CONN_AUTH_FAILED_TIMEOUT:
 179                 *treason = NL80211_TIMEOUT_AUTH;
 180                 return -ENOTCONN;
 181         case CFG80211_CONN_ASSOCIATE_NEXT:
 182                 if (WARN_ON(!rdev->ops->assoc))
 183                         return -EOPNOTSUPP;
 184                 wdev->conn->state = CFG80211_CONN_ASSOCIATING;
 185                 if (wdev->conn->prev_bssid_valid)
 186                         req.prev_bssid = wdev->conn->prev_bssid;
 187                 req.ie = params->ie;
 188                 req.ie_len = params->ie_len;
 189                 req.use_mfp = params->mfp != NL80211_MFP_NO;
 190                 req.crypto = params->crypto;
 191                 req.flags = params->flags;
 192                 req.ht_capa = params->ht_capa;
 193                 req.ht_capa_mask = params->ht_capa_mask;
 194                 req.vht_capa = params->vht_capa;
 195                 req.vht_capa_mask = params->vht_capa_mask;
 196
 197                 err = cfg80211_mlme_assoc(rdev, wdev->netdev, params->channel,
 198                                           params->bssid, params->ssid,
 199                                           params->ssid_len, &req);
 200                 if (err)
 201                         cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
 202                                              NULL, 0,
 203                                              WLAN_REASON_DEAUTH_LEAVING,
 204                                              false);
 205                 return err;
 206         case CFG80211_CONN_ASSOC_FAILED_TIMEOUT:
 207                 *treason = NL80211_TIMEOUT_ASSOC;
 208                 /* fall through */
 209         case CFG80211_CONN_ASSOC_FAILED:
 210                 cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
 211                                      NULL, 0,
 212                                      WLAN_REASON_DEAUTH_LEAVING, false);
 213                 return -ENOTCONN;
 214         case CFG80211_CONN_DEAUTH:
 215                 cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
 216                                      NULL, 0,
 217                                      WLAN_REASON_DEAUTH_LEAVING, false);
 218                 /* fall through */
 219         case CFG80211_CONN_ABANDON:
 220                 /* free directly, disconnected event already sent */
 221                 cfg80211_sme_free(wdev);
 222                 return 0;
 223         default:
 224                 return 0;
 225         }
 226 }
 227
 228 void cfg80211_conn_work(struct work_struct *work)
 229 {
 230         struct cfg80211_registered_device *rdev =
 231                 container_of(work, struct cfg80211_registered_device, conn_work);
 232         struct wireless_dev *wdev;
 233         u8 bssid_buf[ETH_ALEN], *bssid = NULL;
 234         enum nl80211_timeout_reason treason;
 235
 236         rtnl_lock();
 237
 238         list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
 239                 if (!wdev->netdev)
 240                         continue;
 241
 242                 wdev_lock(wdev);
 243                 if (!netif_running(wdev->netdev)) {
 244                         wdev_unlock(wdev);
 245                         continue;
 246                 }
 247                 if (!wdev->conn ||
 248                     wdev->conn->state == CFG80211_CONN_CONNECTED) {
 249                         wdev_unlock(wdev);
 250                         continue;
 251                 }
 252                 if (wdev->conn->params.bssid) {
 253                         memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN);
 254                         bssid = bssid_buf;
 255                 }
 256                 treason = NL80211_TIMEOUT_UNSPECIFIED;
 257                 if (cfg80211_conn_do_work(wdev, &treason)) {
 258                         struct cfg80211_connect_resp_params cr;
 259
 260                         memset(&cr, 0, sizeof(cr));
 261                         cr.status = -1;
 262                         cr.bssid = bssid;
 263                         cr.timeout_reason = treason;
 264                         __cfg80211_connect_result(wdev->netdev, &cr, false);
 265                 }
 266                 wdev_unlock(wdev);
 267         }
 268
 269         rtnl_unlock();
 270 }
 271
 272 /* Returned bss is reference counted and must be cleaned up appropriately. */
 273 static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev)
 274 {
 275         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 276         struct cfg80211_bss *bss;
 277
 278         ASSERT_WDEV_LOCK(wdev);
 279
 280         bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel,
 281                                wdev->conn->params.bssid,
 282                                wdev->conn->params.ssid,
 283                                wdev->conn->params.ssid_len,
 284                                wdev->conn_bss_type,
 285                                IEEE80211_PRIVACY(wdev->conn->params.privacy));
 286         if (!bss)
 287                 return NULL;
 288
 289         memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN);
 290         wdev->conn->params.bssid = wdev->conn->bssid;
 291         wdev->conn->params.channel = bss->channel;
 292         wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
 293         schedule_work(&rdev->conn_work);
 294
 295         return bss;
 296 }
 297
 298 static void __cfg80211_sme_scan_done(struct net_device *dev)
 299 {
 300         struct wireless_dev *wdev = dev->ieee80211_ptr;
 301         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 302         struct cfg80211_bss *bss;
 303
 304         ASSERT_WDEV_LOCK(wdev);
 305
 306         if (!wdev->conn)
 307                 return;
 308
 309         if (wdev->conn->state != CFG80211_CONN_SCANNING &&
 310             wdev->conn->state != CFG80211_CONN_SCAN_AGAIN)
 311                 return;
 312
 313         bss = cfg80211_get_conn_bss(wdev);
 314         if (bss)
 315                 cfg80211_put_bss(&rdev->wiphy, bss);
 316         else
 317                 schedule_work(&rdev->conn_work);
 318 }
 319
 320 void cfg80211_sme_scan_done(struct net_device *dev)
 321 {
 322         struct wireless_dev *wdev = dev->ieee80211_ptr;
 323
 324         wdev_lock(wdev);
 325         __cfg80211_sme_scan_done(dev);
 326         wdev_unlock(wdev);
 327 }
 328
 329 void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len)
 330 {
 331         struct wiphy *wiphy = wdev->wiphy;
 332         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
 333         struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
 334         u16 status_code = le16_to_cpu(mgmt->u.auth.status_code);
 335
 336         ASSERT_WDEV_LOCK(wdev);
 337
 338         if (!wdev->conn || wdev->conn->state == CFG80211_CONN_CONNECTED)
 339                 return;
 340
 341         if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
 342             wdev->conn->auto_auth &&
 343             wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) {
 344                 /* select automatically between only open, shared, leap */
 345                 switch (wdev->conn->params.auth_type) {
 346                 case NL80211_AUTHTYPE_OPEN_SYSTEM:
 347                         if (wdev->connect_keys)
 348                                 wdev->conn->params.auth_type =
 349                                         NL80211_AUTHTYPE_SHARED_KEY;
 350                         else
 351                                 wdev->conn->params.auth_type =
 352                                         NL80211_AUTHTYPE_NETWORK_EAP;
 353                         break;
 354                 case NL80211_AUTHTYPE_SHARED_KEY:
 355                         wdev->conn->params.auth_type =
 356                                 NL80211_AUTHTYPE_NETWORK_EAP;
 357                         break;
 358                 default:
 359                         /* huh? */
 360                         wdev->conn->params.auth_type =
 361                                 NL80211_AUTHTYPE_OPEN_SYSTEM;
 362                         break;
 363                 }
 364                 wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
 365                 schedule_work(&rdev->conn_work);
 366         } else if (status_code != WLAN_STATUS_SUCCESS) {
 367                 struct cfg80211_connect_resp_params cr;
 368
 369                 memset(&cr, 0, sizeof(cr));
 370                 cr.status = status_code;
 371                 cr.bssid = mgmt->bssid;
 372                 cr.timeout_reason = NL80211_TIMEOUT_UNSPECIFIED;
 373                 __cfg80211_connect_result(wdev->netdev, &cr, false);
 374         } else if (wdev->conn->state == CFG80211_CONN_AUTHENTICATING) {
 375                 wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
 376                 schedule_work(&rdev->conn_work);
 377         }
 378 }
 379
 380 bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status)
 381 {
 382         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 383
 384         if (!wdev->conn)
 385                 return false;
 386
 387         if (status == WLAN_STATUS_SUCCESS) {
 388                 wdev->conn->state = CFG80211_CONN_CONNECTED;
 389                 return false;
 390         }
 391
 392         if (wdev->conn->prev_bssid_valid) {
 393                 /*
 394                  * Some stupid APs don't accept reassoc, so we
 395                  * need to fall back to trying regular assoc;
 396                  * return true so no event is sent to userspace.
 397                  */
 398                 wdev->conn->prev_bssid_valid = false;
 399                 wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
 400                 schedule_work(&rdev->conn_work);
 401                 return true;
 402         }
 403
 404         wdev->conn->state = CFG80211_CONN_ASSOC_FAILED;
 405         schedule_work(&rdev->conn_work);
 406         return false;
 407 }
 408
 409 void cfg80211_sme_deauth(struct wireless_dev *wdev)
 410 {
 411         cfg80211_sme_free(wdev);
 412 }
 413
 414 void cfg80211_sme_auth_timeout(struct wireless_dev *wdev)
 415 {
 416         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 417
 418         if (!wdev->conn)
 419                 return;
 420
 421         wdev->conn->state = CFG80211_CONN_AUTH_FAILED_TIMEOUT;
 422         schedule_work(&rdev->conn_work);
 423 }
 424
 425 void cfg80211_sme_disassoc(struct wireless_dev *wdev)
 426 {
 427         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 428
 429         if (!wdev->conn)
 430                 return;
 431
 432         wdev->conn->state = CFG80211_CONN_DEAUTH;
 433         schedule_work(&rdev->conn_work);
 434 }
 435
 436 void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev)
 437 {
 438         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 439
 440         if (!wdev->conn)
 441                 return;
 442
 443         wdev->conn->state = CFG80211_CONN_ASSOC_FAILED_TIMEOUT;
 444         schedule_work(&rdev->conn_work);
 445 }
 446
 447 void cfg80211_sme_abandon_assoc(struct wireless_dev *wdev)
 448 {
 449         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 450
 451         if (!wdev->conn)
 452                 return;
 453
 454         wdev->conn->state = CFG80211_CONN_ABANDON;
 455         schedule_work(&rdev->conn_work);
 456 }
 457
 458 static int cfg80211_sme_get_conn_ies(struct wireless_dev *wdev,
 459                                      const u8 *ies, size_t ies_len,
 460                                      const u8 **out_ies, size_t *out_ies_len)
 461 {
 462         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 463         u8 *buf;
 464         size_t offs;
 465
 466         if (!rdev->wiphy.extended_capabilities_len ||
 467             (ies && cfg80211_find_ie(WLAN_EID_EXT_CAPABILITY, ies, ies_len))) {
 468                 *out_ies = kmemdup(ies, ies_len, GFP_KERNEL);
 469                 if (!*out_ies)
 470                         return -ENOMEM;
 471                 *out_ies_len = ies_len;
 472                 return 0;
 473         }
 474
 475         buf = kmalloc(ies_len + rdev->wiphy.extended_capabilities_len + 2,
 476                       GFP_KERNEL);
 477         if (!buf)
 478                 return -ENOMEM;
 479
 480         if (ies_len) {
 481                 static const u8 before_extcapa[] = {
 482                         /* not listing IEs expected to be created by driver */
 483                         WLAN_EID_RSN,
 484                         WLAN_EID_QOS_CAPA,
 485                         WLAN_EID_RRM_ENABLED_CAPABILITIES,
 486                         WLAN_EID_MOBILITY_DOMAIN,
 487                         WLAN_EID_SUPPORTED_REGULATORY_CLASSES,
 488                         WLAN_EID_BSS_COEX_2040,
 489                 };
 490
 491                 offs = ieee80211_ie_split(ies, ies_len, before_extcapa,
 492                                           ARRAY_SIZE(before_extcapa), 0);
 493                 memcpy(buf, ies, offs);
 494                 /* leave a whole for extended capabilities IE */
 495                 memcpy(buf + offs + rdev->wiphy.extended_capabilities_len + 2,
 496                        ies + offs, ies_len - offs);
 497         } else {
 498                 offs = 0;
 499         }
 500
 501         /* place extended capabilities IE (with only driver capabilities) */
 502         buf[offs] = WLAN_EID_EXT_CAPABILITY;
 503         buf[offs + 1] = rdev->wiphy.extended_capabilities_len;
 504         memcpy(buf + offs + 2,
 505                rdev->wiphy.extended_capabilities,
 506                rdev->wiphy.extended_capabilities_len);
 507
 508         *out_ies = buf;
 509         *out_ies_len = ies_len + rdev->wiphy.extended_capabilities_len + 2;
 510
 511         return 0;
 512 }
 513
 514 static int cfg80211_sme_connect(struct wireless_dev *wdev,
 515                                 struct cfg80211_connect_params *connect,
 516                                 const u8 *prev_bssid)
 517 {
 518         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 519         struct cfg80211_bss *bss;
 520         int err;
 521
 522         if (!rdev->ops->auth || !rdev->ops->assoc)
 523                 return -EOPNOTSUPP;
 524
 525         if (wdev->current_bss) {
 526                 if (!prev_bssid)
 527                         return -EALREADY;
 528                 if (prev_bssid &&
 529                     !ether_addr_equal(prev_bssid, wdev->current_bss->pub.bssid))
 530                         return -ENOTCONN;
 531                 cfg80211_unhold_bss(wdev->current_bss);
 532                 cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub);
 533                 wdev->current_bss = NULL;
 534
 535                 cfg80211_sme_free(wdev);
 536         }
 537
 538         if (WARN_ON(wdev->conn))
 539                 return -EINPROGRESS;
 540
 541         wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL);
 542         if (!wdev->conn)
 543                 return -ENOMEM;
 544
 545         /*
 546          * Copy all parameters, and treat explicitly IEs, BSSID, SSID.
 547          */
 548         memcpy(&wdev->conn->params, connect, sizeof(*connect));
 549         if (connect->bssid) {
 550                 wdev->conn->params.bssid = wdev->conn->bssid;
 551                 memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN);
 552         }
 553
 554         if (cfg80211_sme_get_conn_ies(wdev, connect->ie, connect->ie_len,
 555                                       &wdev->conn->ie,
 556                                       &wdev->conn->params.ie_len)) {
 557                 kfree(wdev->conn);
 558                 wdev->conn = NULL;
 559                 return -ENOMEM;
 560         }
 561         wdev->conn->params.ie = wdev->conn->ie;
 562
 563         if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
 564                 wdev->conn->auto_auth = true;
 565                 /* start with open system ... should mostly work */
 566                 wdev->conn->params.auth_type =
 567                         NL80211_AUTHTYPE_OPEN_SYSTEM;
 568         } else {
 569                 wdev->conn->auto_auth = false;
 570         }
 571
 572         wdev->conn->params.ssid = wdev->ssid;
 573         wdev->conn->params.ssid_len = wdev->ssid_len;
 574
 575         /* see if we have the bss already */
 576         bss = cfg80211_get_conn_bss(wdev);
 577
 578         if (prev_bssid) {
 579                 memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN);
 580                 wdev->conn->prev_bssid_valid = true;
 581         }
 582
 583         /* we're good if we have a matching bss struct */
 584         if (bss) {
 585                 enum nl80211_timeout_reason treason;
 586
 587                 err = cfg80211_conn_do_work(wdev, &treason);
 588                 cfg80211_put_bss(wdev->wiphy, bss);
 589         } else {
 590                 /* otherwise we'll need to scan for the AP first */
 591                 err = cfg80211_conn_scan(wdev);
 592
 593                 /*
 594                  * If we can't scan right now, then we need to scan again
 595                  * after the current scan finished, since the parameters
 596                  * changed (unless we find a good AP anyway).
 597                  */
 598                 if (err == -EBUSY) {
 599                         err = 0;
 600                         wdev->conn->state = CFG80211_CONN_SCAN_AGAIN;
 601                 }
 602         }
 603
 604         if (err)
 605                 cfg80211_sme_free(wdev);
 606
 607         return err;
 608 }
 609
 610 static int cfg80211_sme_disconnect(struct wireless_dev *wdev, u16 reason)
 611 {
 612         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 613         int err;
 614
 615         if (!wdev->conn)
 616                 return 0;
 617
 618         if (!rdev->ops->deauth)
 619                 return -EOPNOTSUPP;
 620
 621         if (wdev->conn->state == CFG80211_CONN_SCANNING ||
 622             wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) {
 623                 err = 0;
 624                 goto out;
 625         }
 626
 627         /* wdev->conn->params.bssid must be set if > SCANNING */
 628         err = cfg80211_mlme_deauth(rdev, wdev->netdev,
 629                                    wdev->conn->params.bssid,
 630                                    NULL, 0, reason, false);
 631  out:
 632         cfg80211_sme_free(wdev);
 633         return err;
 634 }
 635
 636 /*
 637  * code shared for in-device and software SME
 638  */
 639
 640 static bool cfg80211_is_all_idle(void)
 641 {
 642         struct cfg80211_registered_device *rdev;
 643         struct wireless_dev *wdev;
 644         bool is_all_idle = true;
 645
 646         /*
 647          * All devices must be idle as otherwise if you are actively
 648          * scanning some new beacon hints could be learned and would
 649          * count as new regulatory hints.
 650          */
 651         list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
 652                 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
 653                         wdev_lock(wdev);
 654                         if (wdev->conn || wdev->current_bss)
 655                                 is_all_idle = false;
 656                         wdev_unlock(wdev);
 657                 }
 658         }
 659
 660         return is_all_idle;
 661 }
 662
 663 static void disconnect_work(struct work_struct *work)
 664 {
 665         rtnl_lock();
 666         if (cfg80211_is_all_idle())
 667                 regulatory_hint_disconnect();
 668         rtnl_unlock();
 669 }
 670
 671 static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work);
 672
 673
 674 /*
 675  * API calls for drivers implementing connect/disconnect and
 676  * SME event handling
 677  */
 678
 679 /* This method must consume bss one way or another */
 680 void __cfg80211_connect_result(struct net_device *dev,
 681                                struct cfg80211_connect_resp_params *cr,
 682                                bool wextev)
 683 {
 684         struct wireless_dev *wdev = dev->ieee80211_ptr;
 685         const u8 *country_ie;
 686 #ifdef CONFIG_CFG80211_WEXT
 687         union iwreq_data wrqu;
 688 #endif
 689
 690         ASSERT_WDEV_LOCK(wdev);
 691
 692         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
 693                     wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) {
 694                 cfg80211_put_bss(wdev->wiphy, cr->bss);
 695                 return;
 696         }
 697
 698         nl80211_send_connect_result(wiphy_to_rdev(wdev->wiphy), dev, cr,
 699                                     GFP_KERNEL);
 700
 701 #ifdef CONFIG_CFG80211_WEXT
 702         if (wextev) {
 703                 if (cr->req_ie && cr->status == WLAN_STATUS_SUCCESS) {
 704                         memset(&wrqu, 0, sizeof(wrqu));
 705                         wrqu.data.length = cr->req_ie_len;
 706                         wireless_send_event(dev, IWEVASSOCREQIE, &wrqu,
 707                                             cr->req_ie);
 708                 }
 709
 710                 if (cr->resp_ie && cr->status == WLAN_STATUS_SUCCESS) {
 711                         memset(&wrqu, 0, sizeof(wrqu));
 712                         wrqu.data.length = cr->resp_ie_len;
 713                         wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu,
 714                                             cr->resp_ie);
 715                 }
 716
 717                 memset(&wrqu, 0, sizeof(wrqu));
 718                 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 719                 if (cr->bssid && cr->status == WLAN_STATUS_SUCCESS) {
 720                         memcpy(wrqu.ap_addr.sa_data, cr->bssid, ETH_ALEN);
 721                         memcpy(wdev->wext.prev_bssid, cr->bssid, ETH_ALEN);
 722                         wdev->wext.prev_bssid_valid = true;
 723                 }
 724                 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
 725         }
 726 #endif
 727
 728         if (!cr->bss && (cr->status == WLAN_STATUS_SUCCESS)) {
 729                 WARN_ON_ONCE(!wiphy_to_rdev(wdev->wiphy)->ops->connect);
 730                 cr->bss = cfg80211_get_bss(wdev->wiphy, NULL, cr->bssid,
 731                                            wdev->ssid, wdev->ssid_len,
 732                                            wdev->conn_bss_type,
 733                                            IEEE80211_PRIVACY_ANY);
 734                 if (cr->bss)
 735                         cfg80211_hold_bss(bss_from_pub(cr->bss));
 736         }
 737
 738         if (wdev->current_bss) {
 739                 cfg80211_unhold_bss(wdev->current_bss);
 740                 cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub);
 741                 wdev->current_bss = NULL;
 742         }
 743
 744         if (cr->status != WLAN_STATUS_SUCCESS) {
 745                 kzfree(wdev->connect_keys);
 746                 wdev->connect_keys = NULL;
 747                 wdev->ssid_len = 0;
 748                 wdev->conn_owner_nlportid = 0;
 749                 if (cr->bss) {
 750                         cfg80211_unhold_bss(bss_from_pub(cr->bss));
 751                         cfg80211_put_bss(wdev->wiphy, cr->bss);
 752                 }
 753                 cfg80211_sme_free(wdev);
 754                 return;
 755         }
 756
 757         if (WARN_ON(!cr->bss))
 758                 return;
 759
 760         wdev->current_bss = bss_from_pub(cr->bss);
 761
 762         if (!(wdev->wiphy->flags & WIPHY_FLAG_HAS_STATIC_WEP))
 763                 cfg80211_upload_connect_keys(wdev);
 764
 765         rcu_read_lock();
 766         country_ie = ieee80211_bss_get_ie(cr->bss, WLAN_EID_COUNTRY);
 767         if (!country_ie) {
 768                 rcu_read_unlock();
 769                 return;
 770         }
 771
 772         country_ie = kmemdup(country_ie, 2 + country_ie[1], GFP_ATOMIC);
 773         rcu_read_unlock();
 774
 775         if (!country_ie)
 776                 return;
 777
 778         /*
 779          * ieee80211_bss_get_ie() ensures we can access:
 780          * - country_ie + 2, the start of the country ie data, and
 781          * - and country_ie[1] which is the IE length
 782          */
 783         regulatory_hint_country_ie(wdev->wiphy, cr->bss->channel->band,
 784                                    country_ie + 2, country_ie[1]);
 785         kfree(country_ie);
 786 }
 787
 788 /* Consumes bss object one way or another */
 789 void cfg80211_connect_done(struct net_device *dev,
 790                            struct cfg80211_connect_resp_params *params,
 791                            gfp_t gfp)
 792 {
 793         struct wireless_dev *wdev = dev->ieee80211_ptr;
 794         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 795         struct cfg80211_event *ev;
 796         unsigned long flags;
 797         u8 *next;
 798
 799         if (params->bss) {
 800                 /* Make sure the bss entry provided by the driver is valid. */
 801                 struct cfg80211_internal_bss *ibss = bss_from_pub(params->bss);
 802
 803                 if (WARN_ON(list_empty(&ibss->list))) {
 804                         cfg80211_put_bss(wdev->wiphy, params->bss);
 805                         return;
 806                 }
 807         }
 808
 809         ev = kzalloc(sizeof(*ev) + (params->bssid ? ETH_ALEN : 0) +
 810                      params->req_ie_len + params->resp_ie_len +
 811                      params->fils_kek_len + params->pmk_len +
 812                      (params->pmkid ? WLAN_PMKID_LEN : 0), gfp);
 813         if (!ev) {
 814                 cfg80211_put_bss(wdev->wiphy, params->bss);
 815                 return;
 816         }
 817
 818         ev->type = EVENT_CONNECT_RESULT;
 819         next = ((u8 *)ev) + sizeof(*ev);
 820         if (params->bssid) {
 821                 ev->cr.bssid = next;
 822                 memcpy((void *)ev->cr.bssid, params->bssid, ETH_ALEN);
 823                 next += ETH_ALEN;
 824         }
 825         if (params->req_ie_len) {
 826                 ev->cr.req_ie = next;
 827                 ev->cr.req_ie_len = params->req_ie_len;
 828                 memcpy((void *)ev->cr.req_ie, params->req_ie,
 829                        params->req_ie_len);
 830                 next += params->req_ie_len;
 831         }
 832         if (params->resp_ie_len) {
 833                 ev->cr.resp_ie = next;
 834                 ev->cr.resp_ie_len = params->resp_ie_len;
 835                 memcpy((void *)ev->cr.resp_ie, params->resp_ie,
 836                        params->resp_ie_len);
 837                 next += params->resp_ie_len;
 838         }
 839         if (params->fils_kek_len) {
 840                 ev->cr.fils_kek = next;
 841                 ev->cr.fils_kek_len = params->fils_kek_len;
 842                 memcpy((void *)ev->cr.fils_kek, params->fils_kek,
 843                        params->fils_kek_len);
 844                 next += params->fils_kek_len;
 845         }
 846         if (params->pmk_len) {
 847                 ev->cr.pmk = next;
 848                 ev->cr.pmk_len = params->pmk_len;
 849                 memcpy((void *)ev->cr.pmk, params->pmk, params->pmk_len);
 850                 next += params->pmk_len;
 851         }
 852         if (params->pmkid) {
 853                 ev->cr.pmkid = next;
 854                 memcpy((void *)ev->cr.pmkid, params->pmkid, WLAN_PMKID_LEN);
 855                 next += WLAN_PMKID_LEN;
 856         }
 857         ev->cr.update_erp_next_seq_num = params->update_erp_next_seq_num;
 858         if (params->update_erp_next_seq_num)
 859                 ev->cr.fils_erp_next_seq_num = params->fils_erp_next_seq_num;
 860         if (params->bss)
 861                 cfg80211_hold_bss(bss_from_pub(params->bss));
 862         ev->cr.bss = params->bss;
 863         ev->cr.status = params->status;
 864         ev->cr.timeout_reason = params->timeout_reason;
 865
 866         spin_lock_irqsave(&wdev->event_lock, flags);
 867         list_add_tail(&ev->list, &wdev->event_list);
 868         spin_unlock_irqrestore(&wdev->event_lock, flags);
 869         queue_work(cfg80211_wq, &rdev->event_work);
 870 }
 871 EXPORT_SYMBOL(cfg80211_connect_done);
 872
 873 /* Consumes bss object one way or another */
 874 void __cfg80211_roamed(struct wireless_dev *wdev,
 875                        struct cfg80211_roam_info *info)
 876 {
 877 #ifdef CONFIG_CFG80211_WEXT
 878         union iwreq_data wrqu;
 879 #endif
 880         ASSERT_WDEV_LOCK(wdev);
 881
 882         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
 883                     wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
 884                 goto out;
 885
 886         if (WARN_ON(!wdev->current_bss))
 887                 goto out;
 888
 889         cfg80211_unhold_bss(wdev->current_bss);
 890         cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub);
 891         wdev->current_bss = NULL;
 892
 893         if (WARN_ON(!info->bss))
 894                 return;
 895
 896         cfg80211_hold_bss(bss_from_pub(info->bss));
 897         wdev->current_bss = bss_from_pub(info->bss);
 898
 899         nl80211_send_roamed(wiphy_to_rdev(wdev->wiphy),
 900                             wdev->netdev, info, GFP_KERNEL);
 901
 902 #ifdef CONFIG_CFG80211_WEXT
 903         if (info->req_ie) {
 904                 memset(&wrqu, 0, sizeof(wrqu));
 905                 wrqu.data.length = info->req_ie_len;
 906                 wireless_send_event(wdev->netdev, IWEVASSOCREQIE,
 907                                     &wrqu, info->req_ie);
 908         }
 909
 910         if (info->resp_ie) {
 911                 memset(&wrqu, 0, sizeof(wrqu));
 912                 wrqu.data.length = info->resp_ie_len;
 913                 wireless_send_event(wdev->netdev, IWEVASSOCRESPIE,
 914                                     &wrqu, info->resp_ie);
 915         }
 916
 917         memset(&wrqu, 0, sizeof(wrqu));
 918         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 919         memcpy(wrqu.ap_addr.sa_data, info->bss->bssid, ETH_ALEN);
 920         memcpy(wdev->wext.prev_bssid, info->bss->bssid, ETH_ALEN);
 921         wdev->wext.prev_bssid_valid = true;
 922         wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL);
 923 #endif
 924
 925         return;
 926 out:
 927         cfg80211_put_bss(wdev->wiphy, info->bss);
 928 }
 929
 930 /* Consumes info->bss object one way or another */
 931 void cfg80211_roamed(struct net_device *dev, struct cfg80211_roam_info *info,
 932                      gfp_t gfp)
 933 {
 934         struct wireless_dev *wdev = dev->ieee80211_ptr;
 935         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 936         struct cfg80211_event *ev;
 937         unsigned long flags;
 938
 939         if (!info->bss) {
 940                 info->bss = cfg80211_get_bss(wdev->wiphy, info->channel,
 941                                              info->bssid, wdev->ssid,
 942                                              wdev->ssid_len,
 943                                              wdev->conn_bss_type,
 944                                              IEEE80211_PRIVACY_ANY);
 945         }
 946
 947         if (WARN_ON(!info->bss))
 948                 return;
 949
 950         ev = kzalloc(sizeof(*ev) + info->req_ie_len + info->resp_ie_len, gfp);
 951         if (!ev) {
 952                 cfg80211_put_bss(wdev->wiphy, info->bss);
 953                 return;
 954         }
 955
 956         ev->type = EVENT_ROAMED;
 957         ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev);
 958         ev->rm.req_ie_len = info->req_ie_len;
 959         memcpy((void *)ev->rm.req_ie, info->req_ie, info->req_ie_len);
 960         ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + info->req_ie_len;
 961         ev->rm.resp_ie_len = info->resp_ie_len;
 962         memcpy((void *)ev->rm.resp_ie, info->resp_ie, info->resp_ie_len);
 963         ev->rm.bss = info->bss;
 964         ev->rm.authorized = info->authorized;
 965
 966         spin_lock_irqsave(&wdev->event_lock, flags);
 967         list_add_tail(&ev->list, &wdev->event_list);
 968         spin_unlock_irqrestore(&wdev->event_lock, flags);
 969         queue_work(cfg80211_wq, &rdev->event_work);
 970 }
 971 EXPORT_SYMBOL(cfg80211_roamed);
 972
 973 void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
 974                              size_t ie_len, u16 reason, bool from_ap)
 975 {
 976         struct wireless_dev *wdev = dev->ieee80211_ptr;
 977         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 978         int i;
 979 #ifdef CONFIG_CFG80211_WEXT
 980         union iwreq_data wrqu;
 981 #endif
 982
 983         ASSERT_WDEV_LOCK(wdev);
 984
 985         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
 986                     wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
 987                 return;
 988
 989         if (wdev->current_bss) {
 990                 cfg80211_unhold_bss(wdev->current_bss);
 991                 cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub);
 992         }
 993
 994         wdev->current_bss = NULL;
 995         wdev->ssid_len = 0;
 996         wdev->conn_owner_nlportid = 0;
 997
 998         nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap);
 999
1000         /* stop critical protocol if supported */
1001         if (rdev->ops->crit_proto_stop && rdev->crit_proto_nlportid) {
1002                 rdev->crit_proto_nlportid = 0;
1003                 rdev_crit_proto_stop(rdev, wdev);
1004         }
1005
1006         /*
1007          * Delete all the keys ... pairwise keys can't really
1008          * exist any more anyway, but default keys might.
1009          */
1010         if (rdev->ops->del_key)
1011                 for (i = 0; i < 6; i++)
1012                         rdev_del_key(rdev, dev, i, false, NULL);
1013
1014         rdev_set_qos_map(rdev, dev, NULL);
1015
1016 #ifdef CONFIG_CFG80211_WEXT
1017         memset(&wrqu, 0, sizeof(wrqu));
1018         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1019         wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
1020         wdev->wext.connect.ssid_len = 0;
1021 #endif
1022
1023         schedule_work(&cfg80211_disconnect_work);
1024 }
1025
1026 void cfg80211_disconnected(struct net_device *dev, u16 reason,
1027                            const u8 *ie, size_t ie_len,
1028                            bool locally_generated, gfp_t gfp)
1029 {
1030         struct wireless_dev *wdev = dev->ieee80211_ptr;
1031         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1032         struct cfg80211_event *ev;
1033         unsigned long flags;
1034
1035         ev = kzalloc(sizeof(*ev) + ie_len, gfp);
1036         if (!ev)
1037                 return;
1038
1039         ev->type = EVENT_DISCONNECTED;
1040         ev->dc.ie = ((u8 *)ev) + sizeof(*ev);
1041         ev->dc.ie_len = ie_len;
1042         memcpy((void *)ev->dc.ie, ie, ie_len);
1043         ev->dc.reason = reason;
1044         ev->dc.locally_generated = locally_generated;
1045
1046         spin_lock_irqsave(&wdev->event_lock, flags);
1047         list_add_tail(&ev->list, &wdev->event_list);
1048         spin_unlock_irqrestore(&wdev->event_lock, flags);
1049         queue_work(cfg80211_wq, &rdev->event_work);
1050 }
1051 EXPORT_SYMBOL(cfg80211_disconnected);
1052
1053 /*
1054  * API calls for nl80211/wext compatibility code
1055  */
1056 int cfg80211_connect(struct cfg80211_registered_device *rdev,
1057                      struct net_device *dev,
1058                      struct cfg80211_connect_params *connect,
1059                      struct cfg80211_cached_keys *connkeys,
1060                      const u8 *prev_bssid)
1061 {
1062         struct wireless_dev *wdev = dev->ieee80211_ptr;
1063         int err;
1064
1065         ASSERT_WDEV_LOCK(wdev);
1066
1067         if (WARN_ON(wdev->connect_keys)) {
1068                 kzfree(wdev->connect_keys);
1069                 wdev->connect_keys = NULL;
1070         }
1071
1072         cfg80211_oper_and_ht_capa(&connect->ht_capa_mask,
1073                                   rdev->wiphy.ht_capa_mod_mask);
1074
1075         if (connkeys && connkeys->def >= 0) {
1076                 int idx;
1077                 u32 cipher;
1078
1079                 idx = connkeys->def;
1080                 cipher = connkeys->params[idx].cipher;
1081                 /* If given a WEP key we may need it for shared key auth */
1082                 if (cipher == WLAN_CIPHER_SUITE_WEP40 ||
1083                     cipher == WLAN_CIPHER_SUITE_WEP104) {
1084                         connect->key_idx = idx;
1085                         connect->key = connkeys->params[idx].key;
1086                         connect->key_len = connkeys->params[idx].key_len;
1087
1088                         /*
1089                          * If ciphers are not set (e.g. when going through
1090                          * iwconfig), we have to set them appropriately here.
1091                          */
1092                         if (connect->crypto.cipher_group == 0)
1093                                 connect->crypto.cipher_group = cipher;
1094
1095                         if (connect->crypto.n_ciphers_pairwise == 0) {
1096                                 connect->crypto.n_ciphers_pairwise = 1;
1097                                 connect->crypto.ciphers_pairwise[0] = cipher;
1098                         }
1099                 }
1100
1101                 connect->crypto.wep_keys = connkeys->params;
1102                 connect->crypto.wep_tx_key = connkeys->def;
1103         } else {
1104                 if (WARN_ON(connkeys))
1105                         return -EINVAL;
1106         }
1107
1108         wdev->connect_keys = connkeys;
1109         memcpy(wdev->ssid, connect->ssid, connect->ssid_len);
1110         wdev->ssid_len = connect->ssid_len;
1111
1112         wdev->conn_bss_type = connect->pbss ? IEEE80211_BSS_TYPE_PBSS :
1113                                               IEEE80211_BSS_TYPE_ESS;
1114
1115         if (!rdev->ops->connect)
1116                 err = cfg80211_sme_connect(wdev, connect, prev_bssid);
1117         else
1118                 err = rdev_connect(rdev, dev, connect);
1119
1120         if (err) {
1121                 wdev->connect_keys = NULL;
1122                 wdev->ssid_len = 0;
1123                 return err;
1124         }
1125
1126         return 0;
1127 }
1128
1129 int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
1130                         struct net_device *dev, u16 reason, bool wextev)
1131 {
1132         struct wireless_dev *wdev = dev->ieee80211_ptr;
1133         int err = 0;
1134
1135         ASSERT_WDEV_LOCK(wdev);
1136
1137         kzfree(wdev->connect_keys);
1138         wdev->connect_keys = NULL;
1139
1140         wdev->conn_owner_nlportid = 0;
1141
1142         if (wdev->conn)
1143                 err = cfg80211_sme_disconnect(wdev, reason);
1144         else if (!rdev->ops->disconnect)
1145                 cfg80211_mlme_down(rdev, dev);
1146         else if (wdev->ssid_len)
1147                 err = rdev_disconnect(rdev, dev, reason);
1148
1149         return err;
1150 }
1151
1152 /*
1153  * Used to clean up after the connection / connection attempt owner socket
1154  * disconnects
1155  */
1156 void cfg80211_autodisconnect_wk(struct work_struct *work)
1157 {
1158         struct wireless_dev *wdev =
1159                 container_of(work, struct wireless_dev, disconnect_wk);
1160         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1161
1162         wdev_lock(wdev);
1163
1164         if (wdev->conn_owner_nlportid) {
1165                 /*
1166                  * Use disconnect_bssid if still connecting and ops->disconnect
1167                  * not implemented.  Otherwise we can use cfg80211_disconnect.
1168                  */
1169                 if (rdev->ops->disconnect || wdev->current_bss)
1170                         cfg80211_disconnect(rdev, wdev->netdev,
1171                                             WLAN_REASON_DEAUTH_LEAVING, true);
1172                 else
1173                         cfg80211_mlme_deauth(rdev, wdev->netdev,
1174                                              wdev->disconnect_bssid, NULL, 0,
1175                                              WLAN_REASON_DEAUTH_LEAVING, false);
1176         }
1177
1178         wdev_unlock(wdev);
1179 }