contrib/wpa/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 int hostapd_wpa_auth_mic_failure_report(void *ctx, const u8 *addr)
 116 {
 117         struct hostapd_data *hapd = ctx;
 118         return 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; all sta->psk)
 192          */
 193         if (sta && sta->psk && !psk) {
 194                 struct hostapd_sta_wpa_psk_short *pos;
 195                 psk = sta->psk->psk;
 196                 for (pos = sta->psk; pos; pos = pos->next) {
 197                         if (pos->psk == prev_psk) {
 198                                 psk = pos->next ? pos->next->psk : NULL;
 199                                 break;
 200                         }
 201                 }
 202         }
 203         return psk;
 204 }
 205
 206
 207 static int hostapd_wpa_auth_get_msk(void *ctx, const u8 *addr, u8 *msk,
 208                                     size_t *len)
 209 {
 210         struct hostapd_data *hapd = ctx;
 211         const u8 *key;
 212         size_t keylen;
 213         struct sta_info *sta;
 214
 215         sta = ap_get_sta(hapd, addr);
 216         if (sta == NULL)
 217                 return -1;
 218
 219         key = ieee802_1x_get_key(sta->eapol_sm, &keylen);
 220         if (key == NULL)
 221                 return -1;
 222
 223         if (keylen > *len)
 224                 keylen = *len;
 225         os_memcpy(msk, key, keylen);
 226         *len = keylen;
 227
 228         return 0;
 229 }
 230
 231
 232 static int hostapd_wpa_auth_set_key(void *ctx, int vlan_id, enum wpa_alg alg,
 233                                     const u8 *addr, int idx, u8 *key,
 234                                     size_t key_len)
 235 {
 236         struct hostapd_data *hapd = ctx;
 237         const char *ifname = hapd->conf->iface;
 238
 239         if (vlan_id > 0) {
 240                 ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id);
 241                 if (ifname == NULL)
 242                         return -1;
 243         }
 244
 245         return hostapd_drv_set_key(ifname, hapd, alg, addr, idx, 1, NULL, 0,
 246                                    key, key_len);
 247 }
 248
 249
 250 static int hostapd_wpa_auth_get_seqnum(void *ctx, const u8 *addr, int idx,
 251                                        u8 *seq)
 252 {
 253         struct hostapd_data *hapd = ctx;
 254         return hostapd_get_seqnum(hapd->conf->iface, hapd, addr, idx, seq);
 255 }
 256
 257
 258 static int hostapd_wpa_auth_send_eapol(void *ctx, const u8 *addr,
 259                                        const u8 *data, size_t data_len,
 260                                        int encrypt)
 261 {
 262         struct hostapd_data *hapd = ctx;
 263         struct sta_info *sta;
 264         u32 flags = 0;
 265
 266         sta = ap_get_sta(hapd, addr);
 267         if (sta)
 268                 flags = hostapd_sta_flags_to_drv(sta->flags);
 269
 270         return hostapd_drv_hapd_send_eapol(hapd, addr, data, data_len,
 271                                            encrypt, flags);
 272 }
 273
 274
 275 static int hostapd_wpa_auth_for_each_sta(
 276         void *ctx, int (*cb)(struct wpa_state_machine *sm, void *ctx),
 277         void *cb_ctx)
 278 {
 279         struct hostapd_data *hapd = ctx;
 280         struct sta_info *sta;
 281
 282         for (sta = hapd->sta_list; sta; sta = sta->next) {
 283                 if (sta->wpa_sm && cb(sta->wpa_sm, cb_ctx))
 284                         return 1;
 285         }
 286         return 0;
 287 }
 288
 289
 290 struct wpa_auth_iface_iter_data {
 291         int (*cb)(struct wpa_authenticator *sm, void *ctx);
 292         void *cb_ctx;
 293 };
 294
 295 static int wpa_auth_iface_iter(struct hostapd_iface *iface, void *ctx)
 296 {
 297         struct wpa_auth_iface_iter_data *data = ctx;
 298         size_t i;
 299         for (i = 0; i < iface->num_bss; i++) {
 300                 if (iface->bss[i]->wpa_auth &&
 301                     data->cb(iface->bss[i]->wpa_auth, data->cb_ctx))
 302                         return 1;
 303         }
 304         return 0;
 305 }
 306
 307
 308 static int hostapd_wpa_auth_for_each_auth(
 309         void *ctx, int (*cb)(struct wpa_authenticator *sm, void *ctx),
 310         void *cb_ctx)
 311 {
 312         struct hostapd_data *hapd = ctx;
 313         struct wpa_auth_iface_iter_data data;
 314         if (hapd->iface->interfaces == NULL ||
 315             hapd->iface->interfaces->for_each_interface == NULL)
 316                 return -1;
 317         data.cb = cb;
 318         data.cb_ctx = cb_ctx;
 319         return hapd->iface->interfaces->for_each_interface(
 320                 hapd->iface->interfaces, wpa_auth_iface_iter, &data);
 321 }
 322
 323
 324 #ifdef CONFIG_IEEE80211R
 325
 326 struct wpa_auth_ft_iface_iter_data {
 327         struct hostapd_data *src_hapd;
 328         const u8 *dst;
 329         const u8 *data;
 330         size_t data_len;
 331 };
 332
 333
 334 static int hostapd_wpa_auth_ft_iter(struct hostapd_iface *iface, void *ctx)
 335 {
 336         struct wpa_auth_ft_iface_iter_data *idata = ctx;
 337         struct hostapd_data *hapd;
 338         size_t j;
 339
 340         for (j = 0; j < iface->num_bss; j++) {
 341                 hapd = iface->bss[j];
 342                 if (hapd == idata->src_hapd)
 343                         continue;
 344                 if (os_memcmp(hapd->own_addr, idata->dst, ETH_ALEN) == 0) {
 345                         wpa_printf(MSG_DEBUG, "FT: Send RRB data directly to "
 346                                    "locally managed BSS " MACSTR "@%s -> "
 347                                    MACSTR "@%s",
 348                                    MAC2STR(idata->src_hapd->own_addr),
 349                                    idata->src_hapd->conf->iface,
 350                                    MAC2STR(hapd->own_addr), hapd->conf->iface);
 351                         wpa_ft_rrb_rx(hapd->wpa_auth,
 352                                       idata->src_hapd->own_addr,
 353                                       idata->data, idata->data_len);
 354                         return 1;
 355                 }
 356         }
 357
 358         return 0;
 359 }
 360
 361 #endif /* CONFIG_IEEE80211R */
 362
 363
 364 static int hostapd_wpa_auth_send_ether(void *ctx, const u8 *dst, u16 proto,
 365                                        const u8 *data, size_t data_len)
 366 {
 367         struct hostapd_data *hapd = ctx;
 368         struct l2_ethhdr *buf;
 369         int ret;
 370
 371 #ifdef CONFIG_IEEE80211R
 372         if (proto == ETH_P_RRB && hapd->iface->interfaces &&
 373             hapd->iface->interfaces->for_each_interface) {
 374                 int res;
 375                 struct wpa_auth_ft_iface_iter_data idata;
 376                 idata.src_hapd = hapd;
 377                 idata.dst = dst;
 378                 idata.data = data;
 379                 idata.data_len = data_len;
 380                 res = hapd->iface->interfaces->for_each_interface(
 381                         hapd->iface->interfaces, hostapd_wpa_auth_ft_iter,
 382                         &idata);
 383                 if (res == 1)
 384                         return data_len;
 385         }
 386 #endif /* CONFIG_IEEE80211R */
 387
 388         if (hapd->driver && hapd->driver->send_ether)
 389                 return hapd->driver->send_ether(hapd->drv_priv, dst,
 390                                                 hapd->own_addr, proto,
 391                                                 data, data_len);
 392         if (hapd->l2 == NULL)
 393                 return -1;
 394
 395         buf = os_malloc(sizeof(*buf) + data_len);
 396         if (buf == NULL)
 397                 return -1;
 398         os_memcpy(buf->h_dest, dst, ETH_ALEN);
 399         os_memcpy(buf->h_source, hapd->own_addr, ETH_ALEN);
 400         buf->h_proto = host_to_be16(proto);
 401         os_memcpy(buf + 1, data, data_len);
 402         ret = l2_packet_send(hapd->l2, dst, proto, (u8 *) buf,
 403                              sizeof(*buf) + data_len);
 404         os_free(buf);
 405         return ret;
 406 }
 407
 408
 409 #ifdef CONFIG_IEEE80211R
 410
 411 static int hostapd_wpa_auth_send_ft_action(void *ctx, const u8 *dst,
 412                                            const u8 *data, size_t data_len)
 413 {
 414         struct hostapd_data *hapd = ctx;
 415         int res;
 416         struct ieee80211_mgmt *m;
 417         size_t mlen;
 418         struct sta_info *sta;
 419
 420         sta = ap_get_sta(hapd, dst);
 421         if (sta == NULL || sta->wpa_sm == NULL)
 422                 return -1;
 423
 424         m = os_zalloc(sizeof(*m) + data_len);
 425         if (m == NULL)
 426                 return -1;
 427         mlen = ((u8 *) &m->u - (u8 *) m) + data_len;
 428         m->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
 429                                         WLAN_FC_STYPE_ACTION);
 430         os_memcpy(m->da, dst, ETH_ALEN);
 431         os_memcpy(m->sa, hapd->own_addr, ETH_ALEN);
 432         os_memcpy(m->bssid, hapd->own_addr, ETH_ALEN);
 433         os_memcpy(&m->u, data, data_len);
 434
 435         res = hostapd_drv_send_mlme(hapd, (u8 *) m, mlen, 0);
 436         os_free(m);
 437         return res;
 438 }
 439
 440
 441 static struct wpa_state_machine *
 442 hostapd_wpa_auth_add_sta(void *ctx, const u8 *sta_addr)
 443 {
 444         struct hostapd_data *hapd = ctx;
 445         struct sta_info *sta;
 446
 447         if (hostapd_add_sta_node(hapd, sta_addr, WLAN_AUTH_FT) < 0)
 448                 return NULL;
 449
 450         sta = ap_sta_add(hapd, sta_addr);
 451         if (sta == NULL)
 452                 return NULL;
 453         if (sta->wpa_sm) {
 454                 sta->auth_alg = WLAN_AUTH_FT;
 455                 return sta->wpa_sm;
 456         }
 457
 458         sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr);
 459         if (sta->wpa_sm == NULL) {
 460                 ap_free_sta(hapd, sta);
 461                 return NULL;
 462         }
 463         sta->auth_alg = WLAN_AUTH_FT;
 464
 465         return sta->wpa_sm;
 466 }
 467
 468
 469 static void hostapd_rrb_receive(void *ctx, const u8 *src_addr, const u8 *buf,
 470                                 size_t len)
 471 {
 472         struct hostapd_data *hapd = ctx;
 473         struct l2_ethhdr *ethhdr;
 474         if (len < sizeof(*ethhdr))
 475                 return;
 476         ethhdr = (struct l2_ethhdr *) buf;
 477         wpa_printf(MSG_DEBUG, "FT: RRB received packet " MACSTR " -> "
 478                    MACSTR, MAC2STR(ethhdr->h_source), MAC2STR(ethhdr->h_dest));
 479         wpa_ft_rrb_rx(hapd->wpa_auth, ethhdr->h_source, buf + sizeof(*ethhdr),
 480                       len - sizeof(*ethhdr));
 481 }
 482
 483
 484 static int hostapd_wpa_auth_add_tspec(void *ctx, const u8 *sta_addr,
 485                                       u8 *tspec_ie, size_t tspec_ielen)
 486 {
 487         struct hostapd_data *hapd = ctx;
 488         return hostapd_add_tspec(hapd, sta_addr, tspec_ie, tspec_ielen);
 489 }
 490
 491 #endif /* CONFIG_IEEE80211R */
 492
 493
 494 int hostapd_setup_wpa(struct hostapd_data *hapd)
 495 {
 496         struct wpa_auth_config _conf;
 497         struct wpa_auth_callbacks cb;
 498         const u8 *wpa_ie;
 499         size_t wpa_ie_len;
 500
 501         hostapd_wpa_auth_conf(hapd->conf, &_conf);
 502         if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_EAPOL_TX_STATUS)
 503                 _conf.tx_status = 1;
 504         if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_MLME)
 505                 _conf.ap_mlme = 1;
 506         os_memset(&cb, 0, sizeof(cb));
 507         cb.ctx = hapd;
 508         cb.logger = hostapd_wpa_auth_logger;
 509         cb.disconnect = hostapd_wpa_auth_disconnect;
 510         cb.mic_failure_report = hostapd_wpa_auth_mic_failure_report;
 511         cb.set_eapol = hostapd_wpa_auth_set_eapol;
 512         cb.get_eapol = hostapd_wpa_auth_get_eapol;
 513         cb.get_psk = hostapd_wpa_auth_get_psk;
 514         cb.get_msk = hostapd_wpa_auth_get_msk;
 515         cb.set_key = hostapd_wpa_auth_set_key;
 516         cb.get_seqnum = hostapd_wpa_auth_get_seqnum;
 517         cb.send_eapol = hostapd_wpa_auth_send_eapol;
 518         cb.for_each_sta = hostapd_wpa_auth_for_each_sta;
 519         cb.for_each_auth = hostapd_wpa_auth_for_each_auth;
 520         cb.send_ether = hostapd_wpa_auth_send_ether;
 521 #ifdef CONFIG_IEEE80211R
 522         cb.send_ft_action = hostapd_wpa_auth_send_ft_action;
 523         cb.add_sta = hostapd_wpa_auth_add_sta;
 524         cb.add_tspec = hostapd_wpa_auth_add_tspec;
 525 #endif /* CONFIG_IEEE80211R */
 526         hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb);
 527         if (hapd->wpa_auth == NULL) {
 528                 wpa_printf(MSG_ERROR, "WPA initialization failed.");
 529                 return -1;
 530         }
 531
 532         if (hostapd_set_privacy(hapd, 1)) {
 533                 wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked "
 534                            "for interface %s", hapd->conf->iface);
 535                 return -1;
 536         }
 537
 538         wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len);
 539         if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len)) {
 540                 wpa_printf(MSG_ERROR, "Failed to configure WPA IE for "
 541                            "the kernel driver.");
 542                 return -1;
 543         }
 544
 545         if (rsn_preauth_iface_init(hapd)) {
 546                 wpa_printf(MSG_ERROR, "Initialization of RSN "
 547                            "pre-authentication failed.");
 548                 return -1;
 549         }
 550
 551 #ifdef CONFIG_IEEE80211R
 552         if (!hostapd_drv_none(hapd)) {
 553                 hapd->l2 = l2_packet_init(hapd->conf->bridge[0] ?
 554                                           hapd->conf->bridge :
 555                                           hapd->conf->iface, NULL, ETH_P_RRB,
 556                                           hostapd_rrb_receive, hapd, 1);
 557                 if (hapd->l2 == NULL &&
 558                     (hapd->driver == NULL ||
 559                      hapd->driver->send_ether == NULL)) {
 560                         wpa_printf(MSG_ERROR, "Failed to open l2_packet "
 561                                    "interface");
 562                         return -1;
 563                 }
 564         }
 565 #endif /* CONFIG_IEEE80211R */
 566
 567         return 0;
 568
 569 }
 570
 571
 572 void hostapd_reconfig_wpa(struct hostapd_data *hapd)
 573 {
 574         struct wpa_auth_config wpa_auth_conf;
 575         hostapd_wpa_auth_conf(hapd->conf, &wpa_auth_conf);
 576         wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf);
 577 }
 578
 579
 580 void hostapd_deinit_wpa(struct hostapd_data *hapd)
 581 {
 582         ieee80211_tkip_countermeasures_deinit(hapd);
 583         rsn_preauth_iface_deinit(hapd);
 584         if (hapd->wpa_auth) {
 585                 wpa_deinit(hapd->wpa_auth);
 586                 hapd->wpa_auth = NULL;
 587
 588                 if (hostapd_set_privacy(hapd, 0)) {
 589                         wpa_printf(MSG_DEBUG, "Could not disable "
 590                                    "PrivacyInvoked for interface %s",
 591                                    hapd->conf->iface);
 592                 }
 593
 594                 if (hostapd_set_generic_elem(hapd, (u8 *) "", 0)) {
 595                         wpa_printf(MSG_DEBUG, "Could not remove generic "
 596                                    "information element from interface %s",
 597                                    hapd->conf->iface);
 598                 }
 599         }
 600         ieee802_1x_deinit(hapd);
 601
 602 #ifdef CONFIG_IEEE80211R
 603         l2_packet_deinit(hapd->l2);
 604 #endif /* CONFIG_IEEE80211R */
 605 }