src/ap/wpa_auth_glue.c

   1 /*
   2  * hostapd / WPA authenticator glue code
   3  * Copyright (c) 2002-2011, Jouni Malinen <j@w1.fi>
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "utils/includes.h"
  10
  11 #include "utils/common.h"
  12 #include "common/ieee802_11_defs.h"
  13 #include "eapol_auth/eapol_auth_sm.h"
  14 #include "eapol_auth/eapol_auth_sm_i.h"
  15 #include "eap_server/eap.h"
  16 #include "l2_packet/l2_packet.h"
  17 #include "drivers/driver.h"
  18 #include "hostapd.h"
  19 #include "ieee802_1x.h"
  20 #include "preauth_auth.h"
  21 #include "sta_info.h"
  22 #include "tkip_countermeasures.h"
  23 #include "ap_drv_ops.h"
  24 #include "ap_config.h"
  25 #include "wpa_auth.h"
  26 #include "wpa_auth_glue.h"
  27
  28
  29 static void hostapd_wpa_auth_conf(struct hostapd_bss_config *conf,
  30                                   struct wpa_auth_config *wconf)
  31 {
  32         os_memset(wconf, 0, sizeof(*wconf));
  33         wconf->wpa = conf->wpa;
  34         wconf->wpa_key_mgmt = conf->wpa_key_mgmt;
  35         wconf->wpa_pairwise = conf->wpa_pairwise;
  36         wconf->wpa_group = conf->wpa_group;
  37         wconf->wpa_group_rekey = conf->wpa_group_rekey;
  38         wconf->wpa_strict_rekey = conf->wpa_strict_rekey;
  39         wconf->wpa_gmk_rekey = conf->wpa_gmk_rekey;
  40         wconf->wpa_ptk_rekey = conf->wpa_ptk_rekey;
  41         wconf->rsn_pairwise = conf->rsn_pairwise;
  42         wconf->rsn_preauth = conf->rsn_preauth;
  43         wconf->eapol_version = conf->eapol_version;
  44         wconf->peerkey = conf->peerkey;
  45         wconf->wmm_enabled = conf->wmm_enabled;
  46         wconf->wmm_uapsd = conf->wmm_uapsd;
  47         wconf->disable_pmksa_caching = conf->disable_pmksa_caching;
  48         wconf->okc = conf->okc;
  49 #ifdef CONFIG_IEEE80211W
  50         wconf->ieee80211w = conf->ieee80211w;
  51 #endif /* CONFIG_IEEE80211W */
  52 #ifdef CONFIG_IEEE80211R
  53         wconf->ssid_len = conf->ssid.ssid_len;
  54         if (wconf->ssid_len > SSID_LEN)
  55                 wconf->ssid_len = SSID_LEN;
  56         os_memcpy(wconf->ssid, conf->ssid.ssid, wconf->ssid_len);
  57         os_memcpy(wconf->mobility_domain, conf->mobility_domain,
  58                   MOBILITY_DOMAIN_ID_LEN);
  59         if (conf->nas_identifier &&
  60             os_strlen(conf->nas_identifier) <= FT_R0KH_ID_MAX_LEN) {
  61                 wconf->r0_key_holder_len = os_strlen(conf->nas_identifier);
  62                 os_memcpy(wconf->r0_key_holder, conf->nas_identifier,
  63                           wconf->r0_key_holder_len);
  64         }
  65         os_memcpy(wconf->r1_key_holder, conf->r1_key_holder, FT_R1KH_ID_LEN);
  66         wconf->r0_key_lifetime = conf->r0_key_lifetime;
  67         wconf->reassociation_deadline = conf->reassociation_deadline;
  68         wconf->r0kh_list = conf->r0kh_list;
  69         wconf->r1kh_list = conf->r1kh_list;
  70         wconf->pmk_r1_push = conf->pmk_r1_push;
  71         wconf->ft_over_ds = conf->ft_over_ds;
  72 #endif /* CONFIG_IEEE80211R */
  73 #ifdef CONFIG_HS20
  74         wconf->disable_gtk = conf->disable_dgaf;
  75 #endif /* CONFIG_HS20 */
  76 }
  77
  78
  79 static void hostapd_wpa_auth_logger(void *ctx, const u8 *addr,
  80                                     logger_level level, const char *txt)
  81 {
  82 #ifndef CONFIG_NO_HOSTAPD_LOGGER
  83         struct hostapd_data *hapd = ctx;
  84         int hlevel;
  85
  86         switch (level) {
  87         case LOGGER_WARNING:
  88                 hlevel = HOSTAPD_LEVEL_WARNING;
  89                 break;
  90         case LOGGER_INFO:
  91                 hlevel = HOSTAPD_LEVEL_INFO;
  92                 break;
  93         case LOGGER_DEBUG:
  94         default:
  95                 hlevel = HOSTAPD_LEVEL_DEBUG;
  96                 break;
  97         }
  98
  99         hostapd_logger(hapd, addr, HOSTAPD_MODULE_WPA, hlevel, "%s", txt);
 100 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
 101 }
 102
 103
 104 static void hostapd_wpa_auth_disconnect(void *ctx, const u8 *addr,
 105                                         u16 reason)
 106 {
 107         struct hostapd_data *hapd = ctx;
 108         wpa_printf(MSG_DEBUG, "%s: WPA authenticator requests disconnect: "
 109                    "STA " MACSTR " reason %d",
 110                    __func__, MAC2STR(addr), reason);
 111         ap_sta_disconnect(hapd, NULL, addr, reason);
 112 }
 113
 114
 115 static void hostapd_wpa_auth_mic_failure_report(void *ctx, const u8 *addr)
 116 {
 117         struct hostapd_data *hapd = ctx;
 118         michael_mic_failure(hapd, addr, 0);
 119 }
 120
 121
 122 static void hostapd_wpa_auth_set_eapol(void *ctx, const u8 *addr,
 123                                        wpa_eapol_variable var, int value)
 124 {
 125         struct hostapd_data *hapd = ctx;
 126         struct sta_info *sta = ap_get_sta(hapd, addr);
 127         if (sta == NULL)
 128                 return;
 129         switch (var) {
 130         case WPA_EAPOL_portEnabled:
 131                 ieee802_1x_notify_port_enabled(sta->eapol_sm, value);
 132                 break;
 133         case WPA_EAPOL_portValid:
 134                 ieee802_1x_notify_port_valid(sta->eapol_sm, value);
 135                 break;
 136         case WPA_EAPOL_authorized:
 137                 ieee802_1x_set_sta_authorized(hapd, sta, value);
 138                 break;
 139         case WPA_EAPOL_portControl_Auto:
 140                 if (sta->eapol_sm)
 141                         sta->eapol_sm->portControl = Auto;
 142                 break;
 143         case WPA_EAPOL_keyRun:
 144                 if (sta->eapol_sm)
 145                         sta->eapol_sm->keyRun = value ? TRUE : FALSE;
 146                 break;
 147         case WPA_EAPOL_keyAvailable:
 148                 if (sta->eapol_sm)
 149                         sta->eapol_sm->eap_if->eapKeyAvailable =
 150                                 value ? TRUE : FALSE;
 151                 break;
 152         case WPA_EAPOL_keyDone:
 153                 if (sta->eapol_sm)
 154                         sta->eapol_sm->keyDone = value ? TRUE : FALSE;
 155                 break;
 156         case WPA_EAPOL_inc_EapolFramesTx:
 157                 if (sta->eapol_sm)
 158                         sta->eapol_sm->dot1xAuthEapolFramesTx++;
 159                 break;
 160         }
 161 }
 162
 163
 164 static int hostapd_wpa_auth_get_eapol(void *ctx, const u8 *addr,
 165                                       wpa_eapol_variable var)
 166 {
 167         struct hostapd_data *hapd = ctx;
 168         struct sta_info *sta = ap_get_sta(hapd, addr);
 169         if (sta == NULL || sta->eapol_sm == NULL)
 170                 return -1;
 171         switch (var) {
 172         case WPA_EAPOL_keyRun:
 173                 return sta->eapol_sm->keyRun;
 174         case WPA_EAPOL_keyAvailable:
 175                 return sta->eapol_sm->eap_if->eapKeyAvailable;
 176         default:
 177                 return -1;
 178         }
 179 }
 180
 181
 182 static const u8 * hostapd_wpa_auth_get_psk(void *ctx, const u8 *addr,
 183                                            const u8 *prev_psk)
 184 {
 185         struct hostapd_data *hapd = ctx;
 186         struct sta_info *sta = ap_get_sta(hapd, addr);
 187         const u8 *psk = hostapd_get_psk(hapd->conf, addr, prev_psk);
 188         /*
 189          * This is about to iterate over all psks, prev_psk gives the last
 190          * returned psk which should not be returned again.
 191          * logic list (all hostapd_get_psk; sta->psk)
 192          */
 193         if (sta && sta->psk && !psk && sta->psk != prev_psk)
 194                 psk = sta->psk;
 195         return psk;
 196 }
 197
 198
 199 static int hostapd_wpa_auth_get_msk(void *ctx, const u8 *addr, u8 *msk,
 200                                     size_t *len)
 201 {
 202         struct hostapd_data *hapd = ctx;
 203         const u8 *key;
 204         size_t keylen;
 205         struct sta_info *sta;
 206
 207         sta = ap_get_sta(hapd, addr);
 208         if (sta == NULL)
 209                 return -1;
 210
 211         key = ieee802_1x_get_key(sta->eapol_sm, &keylen);
 212         if (key == NULL)
 213                 return -1;
 214
 215         if (keylen > *len)
 216                 keylen = *len;
 217         os_memcpy(msk, key, keylen);
 218         *len = keylen;
 219
 220         return 0;
 221 }
 222
 223
 224 static int hostapd_wpa_auth_set_key(void *ctx, int vlan_id, enum wpa_alg alg,
 225                                     const u8 *addr, int idx, u8 *key,
 226                                     size_t key_len)
 227 {
 228         struct hostapd_data *hapd = ctx;
 229         const char *ifname = hapd->conf->iface;
 230
 231         if (vlan_id > 0) {
 232                 ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id);
 233                 if (ifname == NULL)
 234                         return -1;
 235         }
 236
 237         return hostapd_drv_set_key(ifname, hapd, alg, addr, idx, 1, NULL, 0,
 238                                    key, key_len);
 239 }
 240
 241
 242 static int hostapd_wpa_auth_get_seqnum(void *ctx, const u8 *addr, int idx,
 243                                        u8 *seq)
 244 {
 245         struct hostapd_data *hapd = ctx;
 246         return hostapd_get_seqnum(hapd->conf->iface, hapd, addr, idx, seq);
 247 }
 248
 249
 250 static int hostapd_wpa_auth_send_eapol(void *ctx, const u8 *addr,
 251                                        const u8 *data, size_t data_len,
 252                                        int encrypt)
 253 {
 254         struct hostapd_data *hapd = ctx;
 255         struct sta_info *sta;
 256         u32 flags = 0;
 257
 258         sta = ap_get_sta(hapd, addr);
 259         if (sta)
 260                 flags = hostapd_sta_flags_to_drv(sta->flags);
 261
 262         return hostapd_drv_hapd_send_eapol(hapd, addr, data, data_len,
 263                                            encrypt, flags);
 264 }
 265
 266
 267 static int hostapd_wpa_auth_for_each_sta(
 268         void *ctx, int (*cb)(struct wpa_state_machine *sm, void *ctx),
 269         void *cb_ctx)
 270 {
 271         struct hostapd_data *hapd = ctx;
 272         struct sta_info *sta;
 273
 274         for (sta = hapd->sta_list; sta; sta = sta->next) {
 275                 if (sta->wpa_sm && cb(sta->wpa_sm, cb_ctx))
 276                         return 1;
 277         }
 278         return 0;
 279 }
 280
 281
 282 struct wpa_auth_iface_iter_data {
 283         int (*cb)(struct wpa_authenticator *sm, void *ctx);
 284         void *cb_ctx;
 285 };
 286
 287 static int wpa_auth_iface_iter(struct hostapd_iface *iface, void *ctx)
 288 {
 289         struct wpa_auth_iface_iter_data *data = ctx;
 290         size_t i;
 291         for (i = 0; i < iface->num_bss; i++) {
 292                 if (iface->bss[i]->wpa_auth &&
 293                     data->cb(iface->bss[i]->wpa_auth, data->cb_ctx))
 294                         return 1;
 295         }
 296         return 0;
 297 }
 298
 299
 300 static int hostapd_wpa_auth_for_each_auth(
 301         void *ctx, int (*cb)(struct wpa_authenticator *sm, void *ctx),
 302         void *cb_ctx)
 303 {
 304         struct hostapd_data *hapd = ctx;
 305         struct wpa_auth_iface_iter_data data;
 306         if (hapd->iface->interfaces == NULL ||
 307             hapd->iface->interfaces->for_each_interface == NULL)
 308                 return -1;
 309         data.cb = cb;
 310         data.cb_ctx = cb_ctx;
 311         return hapd->iface->interfaces->for_each_interface(
 312                 hapd->iface->interfaces, wpa_auth_iface_iter, &data);
 313 }
 314
 315
 316 #ifdef CONFIG_IEEE80211R
 317
 318 struct wpa_auth_ft_iface_iter_data {
 319         struct hostapd_data *src_hapd;
 320         const u8 *dst;
 321         const u8 *data;
 322         size_t data_len;
 323 };
 324
 325
 326 static int hostapd_wpa_auth_ft_iter(struct hostapd_iface *iface, void *ctx)
 327 {
 328         struct wpa_auth_ft_iface_iter_data *idata = ctx;
 329         struct hostapd_data *hapd;
 330         size_t j;
 331
 332         for (j = 0; j < iface->num_bss; j++) {
 333                 hapd = iface->bss[j];
 334                 if (hapd == idata->src_hapd)
 335                         continue;
 336                 if (os_memcmp(hapd->own_addr, idata->dst, ETH_ALEN) == 0) {
 337                         wpa_printf(MSG_DEBUG, "FT: Send RRB data directly to "
 338                                    "locally managed BSS " MACSTR "@%s -> "
 339                                    MACSTR "@%s",
 340                                    MAC2STR(idata->src_hapd->own_addr),
 341                                    idata->src_hapd->conf->iface,
 342                                    MAC2STR(hapd->own_addr), hapd->conf->iface);
 343                         wpa_ft_rrb_rx(hapd->wpa_auth,
 344                                       idata->src_hapd->own_addr,
 345                                       idata->data, idata->data_len);
 346                         return 1;
 347                 }
 348         }
 349
 350         return 0;
 351 }
 352
 353 #endif /* CONFIG_IEEE80211R */
 354
 355
 356 static int hostapd_wpa_auth_send_ether(void *ctx, const u8 *dst, u16 proto,
 357                                        const u8 *data, size_t data_len)
 358 {
 359         struct hostapd_data *hapd = ctx;
 360         struct l2_ethhdr *buf;
 361         int ret;
 362
 363 #ifdef CONFIG_IEEE80211R
 364         if (proto == ETH_P_RRB && hapd->iface->interfaces &&
 365             hapd->iface->interfaces->for_each_interface) {
 366                 int res;
 367                 struct wpa_auth_ft_iface_iter_data idata;
 368                 idata.src_hapd = hapd;
 369                 idata.dst = dst;
 370                 idata.data = data;
 371                 idata.data_len = data_len;
 372                 res = hapd->iface->interfaces->for_each_interface(
 373                         hapd->iface->interfaces, hostapd_wpa_auth_ft_iter,
 374                         &idata);
 375                 if (res == 1)
 376                         return data_len;
 377         }
 378 #endif /* CONFIG_IEEE80211R */
 379
 380         if (hapd->driver && hapd->driver->send_ether)
 381                 return hapd->driver->send_ether(hapd->drv_priv, dst,
 382                                                 hapd->own_addr, proto,
 383                                                 data, data_len);
 384         if (hapd->l2 == NULL)
 385                 return -1;
 386
 387         buf = os_malloc(sizeof(*buf) + data_len);
 388         if (buf == NULL)
 389                 return -1;
 390         os_memcpy(buf->h_dest, dst, ETH_ALEN);
 391         os_memcpy(buf->h_source, hapd->own_addr, ETH_ALEN);
 392         buf->h_proto = host_to_be16(proto);
 393         os_memcpy(buf + 1, data, data_len);
 394         ret = l2_packet_send(hapd->l2, dst, proto, (u8 *) buf,
 395                              sizeof(*buf) + data_len);
 396         os_free(buf);
 397         return ret;
 398 }
 399
 400
 401 #ifdef CONFIG_IEEE80211R
 402
 403 static int hostapd_wpa_auth_send_ft_action(void *ctx, const u8 *dst,
 404                                            const u8 *data, size_t data_len)
 405 {
 406         struct hostapd_data *hapd = ctx;
 407         int res;
 408         struct ieee80211_mgmt *m;
 409         size_t mlen;
 410         struct sta_info *sta;
 411
 412         sta = ap_get_sta(hapd, dst);
 413         if (sta == NULL || sta->wpa_sm == NULL)
 414                 return -1;
 415
 416         m = os_zalloc(sizeof(*m) + data_len);
 417         if (m == NULL)
 418                 return -1;
 419         mlen = ((u8 *) &m->u - (u8 *) m) + data_len;
 420         m->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
 421                                         WLAN_FC_STYPE_ACTION);
 422         os_memcpy(m->da, dst, ETH_ALEN);
 423         os_memcpy(m->sa, hapd->own_addr, ETH_ALEN);
 424         os_memcpy(m->bssid, hapd->own_addr, ETH_ALEN);
 425         os_memcpy(&m->u, data, data_len);
 426
 427         res = hostapd_drv_send_mlme(hapd, (u8 *) m, mlen, 0);
 428         os_free(m);
 429         return res;
 430 }
 431
 432
 433 static struct wpa_state_machine *
 434 hostapd_wpa_auth_add_sta(void *ctx, const u8 *sta_addr)
 435 {
 436         struct hostapd_data *hapd = ctx;
 437         struct sta_info *sta;
 438
 439         if (hostapd_add_sta_node(hapd, sta_addr, WLAN_AUTH_FT) < 0)
 440                 return NULL;
 441
 442         sta = ap_sta_add(hapd, sta_addr);
 443         if (sta == NULL)
 444                 return NULL;
 445         if (sta->wpa_sm) {
 446                 sta->auth_alg = WLAN_AUTH_FT;
 447                 return sta->wpa_sm;
 448         }
 449
 450         sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr);
 451         if (sta->wpa_sm == NULL) {
 452                 ap_free_sta(hapd, sta);
 453                 return NULL;
 454         }
 455         sta->auth_alg = WLAN_AUTH_FT;
 456
 457         return sta->wpa_sm;
 458 }
 459
 460
 461 static void hostapd_rrb_receive(void *ctx, const u8 *src_addr, const u8 *buf,
 462                                 size_t len)
 463 {
 464         struct hostapd_data *hapd = ctx;
 465         struct l2_ethhdr *ethhdr;
 466         if (len < sizeof(*ethhdr))
 467                 return;
 468         ethhdr = (struct l2_ethhdr *) buf;
 469         wpa_printf(MSG_DEBUG, "FT: RRB received packet " MACSTR " -> "
 470                    MACSTR, MAC2STR(ethhdr->h_source), MAC2STR(ethhdr->h_dest));
 471         wpa_ft_rrb_rx(hapd->wpa_auth, ethhdr->h_source, buf + sizeof(*ethhdr),
 472                       len - sizeof(*ethhdr));
 473 }
 474
 475
 476 static int hostapd_wpa_auth_add_tspec(void *ctx, const u8 *sta_addr,
 477                                       u8 *tspec_ie, size_t tspec_ielen)
 478 {
 479         struct hostapd_data *hapd = ctx;
 480         return hostapd_add_tspec(hapd, sta_addr, tspec_ie, tspec_ielen);
 481 }
 482
 483 #endif /* CONFIG_IEEE80211R */
 484
 485
 486 int hostapd_setup_wpa(struct hostapd_data *hapd)
 487 {
 488         struct wpa_auth_config _conf;
 489         struct wpa_auth_callbacks cb;
 490         const u8 *wpa_ie;
 491         size_t wpa_ie_len;
 492
 493         hostapd_wpa_auth_conf(hapd->conf, &_conf);
 494         if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_EAPOL_TX_STATUS)
 495                 _conf.tx_status = 1;
 496         if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_MLME)
 497                 _conf.ap_mlme = 1;
 498         os_memset(&cb, 0, sizeof(cb));
 499         cb.ctx = hapd;
 500         cb.logger = hostapd_wpa_auth_logger;
 501         cb.disconnect = hostapd_wpa_auth_disconnect;
 502         cb.mic_failure_report = hostapd_wpa_auth_mic_failure_report;
 503         cb.set_eapol = hostapd_wpa_auth_set_eapol;
 504         cb.get_eapol = hostapd_wpa_auth_get_eapol;
 505         cb.get_psk = hostapd_wpa_auth_get_psk;
 506         cb.get_msk = hostapd_wpa_auth_get_msk;
 507         cb.set_key = hostapd_wpa_auth_set_key;
 508         cb.get_seqnum = hostapd_wpa_auth_get_seqnum;
 509         cb.send_eapol = hostapd_wpa_auth_send_eapol;
 510         cb.for_each_sta = hostapd_wpa_auth_for_each_sta;
 511         cb.for_each_auth = hostapd_wpa_auth_for_each_auth;
 512         cb.send_ether = hostapd_wpa_auth_send_ether;
 513 #ifdef CONFIG_IEEE80211R
 514         cb.send_ft_action = hostapd_wpa_auth_send_ft_action;
 515         cb.add_sta = hostapd_wpa_auth_add_sta;
 516         cb.add_tspec = hostapd_wpa_auth_add_tspec;
 517 #endif /* CONFIG_IEEE80211R */
 518         hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb);
 519         if (hapd->wpa_auth == NULL) {
 520                 wpa_printf(MSG_ERROR, "WPA initialization failed.");
 521                 return -1;
 522         }
 523
 524         if (hostapd_set_privacy(hapd, 1)) {
 525                 wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked "
 526                            "for interface %s", hapd->conf->iface);
 527                 return -1;
 528         }
 529
 530         wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len);
 531         if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len)) {
 532                 wpa_printf(MSG_ERROR, "Failed to configure WPA IE for "
 533                            "the kernel driver.");
 534                 return -1;
 535         }
 536
 537         if (rsn_preauth_iface_init(hapd)) {
 538                 wpa_printf(MSG_ERROR, "Initialization of RSN "
 539                            "pre-authentication failed.");
 540                 return -1;
 541         }
 542
 543 #ifdef CONFIG_IEEE80211R
 544         if (!hostapd_drv_none(hapd)) {
 545                 hapd->l2 = l2_packet_init(hapd->conf->bridge[0] ?
 546                                           hapd->conf->bridge :
 547                                           hapd->conf->iface, NULL, ETH_P_RRB,
 548                                           hostapd_rrb_receive, hapd, 1);
 549                 if (hapd->l2 == NULL &&
 550                     (hapd->driver == NULL ||
 551                      hapd->driver->send_ether == NULL)) {
 552                         wpa_printf(MSG_ERROR, "Failed to open l2_packet "
 553                                    "interface");
 554                         return -1;
 555                 }
 556         }
 557 #endif /* CONFIG_IEEE80211R */
 558
 559         return 0;
 560
 561 }
 562
 563
 564 void hostapd_reconfig_wpa(struct hostapd_data *hapd)
 565 {
 566         struct wpa_auth_config wpa_auth_conf;
 567         hostapd_wpa_auth_conf(hapd->conf, &wpa_auth_conf);
 568         wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf);
 569 }
 570
 571
 572 void hostapd_deinit_wpa(struct hostapd_data *hapd)
 573 {
 574         ieee80211_tkip_countermeasures_deinit(hapd);
 575         rsn_preauth_iface_deinit(hapd);
 576         if (hapd->wpa_auth) {
 577                 wpa_deinit(hapd->wpa_auth);
 578                 hapd->wpa_auth = NULL;
 579
 580                 if (hostapd_set_privacy(hapd, 0)) {
 581                         wpa_printf(MSG_DEBUG, "Could not disable "
 582                                    "PrivacyInvoked for interface %s",
 583                                    hapd->conf->iface);
 584                 }
 585
 586                 if (hostapd_set_generic_elem(hapd, (u8 *) "", 0)) {
 587                         wpa_printf(MSG_DEBUG, "Could not remove generic "
 588                                    "information element from interface %s",
 589                                    hapd->conf->iface);
 590                 }
 591         }
 592         ieee802_1x_deinit(hapd);
 593
 594 #ifdef CONFIG_IEEE80211R
 595         l2_packet_deinit(hapd->l2);
 596 #endif /* CONFIG_IEEE80211R */
 597 }