src/ap/wpa_auth_glue.c

   1 /*
   2  * hostapd / WPA authenticator glue code
   3  * Copyright (c) 2002-2012, 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 "common/sae.h"
  14 #include "eapol_auth/eapol_auth_sm.h"
  15 #include "eapol_auth/eapol_auth_sm_i.h"
  16 #include "eap_server/eap.h"
  17 #include "l2_packet/l2_packet.h"
  18 #include "drivers/driver.h"
  19 #include "hostapd.h"
  20 #include "ieee802_1x.h"
  21 #include "preauth_auth.h"
  22 #include "sta_info.h"
  23 #include "tkip_countermeasures.h"
  24 #include "ap_drv_ops.h"
  25 #include "ap_config.h"
  26 #include "wpa_auth.h"
  27 #include "wpa_auth_glue.h"
  28
  29
  30 static void hostapd_wpa_auth_conf(struct hostapd_bss_config *conf,
  31                                   struct wpa_auth_config *wconf)
  32 {
  33         os_memset(wconf, 0, sizeof(*wconf));
  34         wconf->wpa = conf->wpa;
  35         wconf->wpa_key_mgmt = conf->wpa_key_mgmt;
  36         wconf->wpa_pairwise = conf->wpa_pairwise;
  37         wconf->wpa_group = conf->wpa_group;
  38         wconf->wpa_group_rekey = conf->wpa_group_rekey;
  39         wconf->wpa_strict_rekey = conf->wpa_strict_rekey;
  40         wconf->wpa_gmk_rekey = conf->wpa_gmk_rekey;
  41         wconf->wpa_ptk_rekey = conf->wpa_ptk_rekey;
  42         wconf->rsn_pairwise = conf->rsn_pairwise;
  43         wconf->rsn_preauth = conf->rsn_preauth;
  44         wconf->eapol_version = conf->eapol_version;
  45         wconf->peerkey = conf->peerkey;
  46         wconf->wmm_enabled = conf->wmm_enabled;
  47         wconf->wmm_uapsd = conf->wmm_uapsd;
  48         wconf->disable_pmksa_caching = conf->disable_pmksa_caching;
  49         wconf->okc = conf->okc;
  50 #ifdef CONFIG_IEEE80211W
  51         wconf->ieee80211w = conf->ieee80211w;
  52 #endif /* CONFIG_IEEE80211W */
  53 #ifdef CONFIG_IEEE80211R
  54         wconf->ssid_len = conf->ssid.ssid_len;
  55         if (wconf->ssid_len > SSID_LEN)
  56                 wconf->ssid_len = SSID_LEN;
  57         os_memcpy(wconf->ssid, conf->ssid.ssid, wconf->ssid_len);
  58         os_memcpy(wconf->mobility_domain, conf->mobility_domain,
  59                   MOBILITY_DOMAIN_ID_LEN);
  60         if (conf->nas_identifier &&
  61             os_strlen(conf->nas_identifier) <= FT_R0KH_ID_MAX_LEN) {
  62                 wconf->r0_key_holder_len = os_strlen(conf->nas_identifier);
  63                 os_memcpy(wconf->r0_key_holder, conf->nas_identifier,
  64                           wconf->r0_key_holder_len);
  65         }
  66         os_memcpy(wconf->r1_key_holder, conf->r1_key_holder, FT_R1KH_ID_LEN);
  67         wconf->r0_key_lifetime = conf->r0_key_lifetime;
  68         wconf->reassociation_deadline = conf->reassociation_deadline;
  69         wconf->r0kh_list = conf->r0kh_list;
  70         wconf->r1kh_list = conf->r1kh_list;
  71         wconf->pmk_r1_push = conf->pmk_r1_push;
  72         wconf->ft_over_ds = conf->ft_over_ds;
  73 #endif /* CONFIG_IEEE80211R */
  74 #ifdef CONFIG_HS20
  75         wconf->disable_gtk = conf->disable_dgaf;
  76 #endif /* CONFIG_HS20 */
  77 }
  78
  79
  80 static void hostapd_wpa_auth_logger(void *ctx, const u8 *addr,
  81                                     logger_level level, const char *txt)
  82 {
  83 #ifndef CONFIG_NO_HOSTAPD_LOGGER
  84         struct hostapd_data *hapd = ctx;
  85         int hlevel;
  86
  87         switch (level) {
  88         case LOGGER_WARNING:
  89                 hlevel = HOSTAPD_LEVEL_WARNING;
  90                 break;
  91         case LOGGER_INFO:
  92                 hlevel = HOSTAPD_LEVEL_INFO;
  93                 break;
  94         case LOGGER_DEBUG:
  95         default:
  96                 hlevel = HOSTAPD_LEVEL_DEBUG;
  97                 break;
  98         }
  99
 100         hostapd_logger(hapd, addr, HOSTAPD_MODULE_WPA, hlevel, "%s", txt);
 101 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
 102 }
 103
 104
 105 static void hostapd_wpa_auth_disconnect(void *ctx, const u8 *addr,
 106                                         u16 reason)
 107 {
 108         struct hostapd_data *hapd = ctx;
 109         wpa_printf(MSG_DEBUG, "%s: WPA authenticator requests disconnect: "
 110                    "STA " MACSTR " reason %d",
 111                    __func__, MAC2STR(addr), reason);
 112         ap_sta_disconnect(hapd, NULL, addr, reason);
 113 }
 114
 115
 116 static int hostapd_wpa_auth_mic_failure_report(void *ctx, const u8 *addr)
 117 {
 118         struct hostapd_data *hapd = ctx;
 119         return michael_mic_failure(hapd, addr, 0);
 120 }
 121
 122
 123 static void hostapd_wpa_auth_set_eapol(void *ctx, const u8 *addr,
 124                                        wpa_eapol_variable var, int value)
 125 {
 126         struct hostapd_data *hapd = ctx;
 127         struct sta_info *sta = ap_get_sta(hapd, addr);
 128         if (sta == NULL)
 129                 return;
 130         switch (var) {
 131         case WPA_EAPOL_portEnabled:
 132                 ieee802_1x_notify_port_enabled(sta->eapol_sm, value);
 133                 break;
 134         case WPA_EAPOL_portValid:
 135                 ieee802_1x_notify_port_valid(sta->eapol_sm, value);
 136                 break;
 137         case WPA_EAPOL_authorized:
 138                 ieee802_1x_set_sta_authorized(hapd, sta, value);
 139                 break;
 140         case WPA_EAPOL_portControl_Auto:
 141                 if (sta->eapol_sm)
 142                         sta->eapol_sm->portControl = Auto;
 143                 break;
 144         case WPA_EAPOL_keyRun:
 145                 if (sta->eapol_sm)
 146                         sta->eapol_sm->keyRun = value ? TRUE : FALSE;
 147                 break;
 148         case WPA_EAPOL_keyAvailable:
 149                 if (sta->eapol_sm)
 150                         sta->eapol_sm->eap_if->eapKeyAvailable =
 151                                 value ? TRUE : FALSE;
 152                 break;
 153         case WPA_EAPOL_keyDone:
 154                 if (sta->eapol_sm)
 155                         sta->eapol_sm->keyDone = value ? TRUE : FALSE;
 156                 break;
 157         case WPA_EAPOL_inc_EapolFramesTx:
 158                 if (sta->eapol_sm)
 159                         sta->eapol_sm->dot1xAuthEapolFramesTx++;
 160                 break;
 161         }
 162 }
 163
 164
 165 static int hostapd_wpa_auth_get_eapol(void *ctx, const u8 *addr,
 166                                       wpa_eapol_variable var)
 167 {
 168         struct hostapd_data *hapd = ctx;
 169         struct sta_info *sta = ap_get_sta(hapd, addr);
 170         if (sta == NULL || sta->eapol_sm == NULL)
 171                 return -1;
 172         switch (var) {
 173         case WPA_EAPOL_keyRun:
 174                 return sta->eapol_sm->keyRun;
 175         case WPA_EAPOL_keyAvailable:
 176                 return sta->eapol_sm->eap_if->eapKeyAvailable;
 177         default:
 178                 return -1;
 179         }
 180 }
 181
 182
 183 static const u8 * hostapd_wpa_auth_get_psk(void *ctx, const u8 *addr,
 184                                            const u8 *prev_psk)
 185 {
 186         struct hostapd_data *hapd = ctx;
 187         struct sta_info *sta = ap_get_sta(hapd, addr);
 188         const u8 *psk;
 189
 190 #ifdef CONFIG_SAE
 191         if (sta && sta->auth_alg == WLAN_AUTH_SAE) {
 192                 if (!sta->sae || prev_psk)
 193                         return NULL;
 194                 return sta->sae->pmk;
 195         }
 196 #endif /* CONFIG_SAE */
 197
 198         psk = hostapd_get_psk(hapd->conf, addr, prev_psk);
 199         /*
 200          * This is about to iterate over all psks, prev_psk gives the last
 201          * returned psk which should not be returned again.
 202          * logic list (all hostapd_get_psk; all sta->psk)
 203          */
 204         if (sta && sta->psk && !psk) {
 205                 struct hostapd_sta_wpa_psk_short *pos;
 206                 psk = sta->psk->psk;
 207                 for (pos = sta->psk; pos; pos = pos->next) {
 208                         if (pos->psk == prev_psk) {
 209                                 psk = pos->next ? pos->next->psk : NULL;
 210                                 break;
 211                         }
 212                 }
 213         }
 214         return psk;
 215 }
 216
 217
 218 static int hostapd_wpa_auth_get_msk(void *ctx, const u8 *addr, u8 *msk,
 219                                     size_t *len)
 220 {
 221         struct hostapd_data *hapd = ctx;
 222         const u8 *key;
 223         size_t keylen;
 224         struct sta_info *sta;
 225
 226         sta = ap_get_sta(hapd, addr);
 227         if (sta == NULL)
 228                 return -1;
 229
 230         key = ieee802_1x_get_key(sta->eapol_sm, &keylen);
 231         if (key == NULL)
 232                 return -1;
 233
 234         if (keylen > *len)
 235                 keylen = *len;
 236         os_memcpy(msk, key, keylen);
 237         *len = keylen;
 238
 239         return 0;
 240 }
 241
 242
 243 static int hostapd_wpa_auth_set_key(void *ctx, int vlan_id, enum wpa_alg alg,
 244                                     const u8 *addr, int idx, u8 *key,
 245                                     size_t key_len)
 246 {
 247         struct hostapd_data *hapd = ctx;
 248         const char *ifname = hapd->conf->iface;
 249
 250         if (vlan_id > 0) {
 251                 ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id);
 252                 if (ifname == NULL)
 253                         return -1;
 254         }
 255
 256         return hostapd_drv_set_key(ifname, hapd, alg, addr, idx, 1, NULL, 0,
 257                                    key, key_len);
 258 }
 259
 260
 261 static int hostapd_wpa_auth_get_seqnum(void *ctx, const u8 *addr, int idx,
 262                                        u8 *seq)
 263 {
 264         struct hostapd_data *hapd = ctx;
 265         return hostapd_get_seqnum(hapd->conf->iface, hapd, addr, idx, seq);
 266 }
 267
 268
 269 static int hostapd_wpa_auth_send_eapol(void *ctx, const u8 *addr,
 270                                        const u8 *data, size_t data_len,
 271                                        int encrypt)
 272 {
 273         struct hostapd_data *hapd = ctx;
 274         struct sta_info *sta;
 275         u32 flags = 0;
 276
 277         sta = ap_get_sta(hapd, addr);
 278         if (sta)
 279                 flags = hostapd_sta_flags_to_drv(sta->flags);
 280
 281         return hostapd_drv_hapd_send_eapol(hapd, addr, data, data_len,
 282                                            encrypt, flags);
 283 }
 284
 285
 286 static int hostapd_wpa_auth_for_each_sta(
 287         void *ctx, int (*cb)(struct wpa_state_machine *sm, void *ctx),
 288         void *cb_ctx)
 289 {
 290         struct hostapd_data *hapd = ctx;
 291         struct sta_info *sta;
 292
 293         for (sta = hapd->sta_list; sta; sta = sta->next) {
 294                 if (sta->wpa_sm && cb(sta->wpa_sm, cb_ctx))
 295                         return 1;
 296         }
 297         return 0;
 298 }
 299
 300
 301 struct wpa_auth_iface_iter_data {
 302         int (*cb)(struct wpa_authenticator *sm, void *ctx);
 303         void *cb_ctx;
 304 };
 305
 306 static int wpa_auth_iface_iter(struct hostapd_iface *iface, void *ctx)
 307 {
 308         struct wpa_auth_iface_iter_data *data = ctx;
 309         size_t i;
 310         for (i = 0; i < iface->num_bss; i++) {
 311                 if (iface->bss[i]->wpa_auth &&
 312                     data->cb(iface->bss[i]->wpa_auth, data->cb_ctx))
 313                         return 1;
 314         }
 315         return 0;
 316 }
 317
 318
 319 static int hostapd_wpa_auth_for_each_auth(
 320         void *ctx, int (*cb)(struct wpa_authenticator *sm, void *ctx),
 321         void *cb_ctx)
 322 {
 323         struct hostapd_data *hapd = ctx;
 324         struct wpa_auth_iface_iter_data data;
 325         if (hapd->iface->interfaces == NULL ||
 326             hapd->iface->interfaces->for_each_interface == NULL)
 327                 return -1;
 328         data.cb = cb;
 329         data.cb_ctx = cb_ctx;
 330         return hapd->iface->interfaces->for_each_interface(
 331                 hapd->iface->interfaces, wpa_auth_iface_iter, &data);
 332 }
 333
 334
 335 #ifdef CONFIG_IEEE80211R
 336
 337 struct wpa_auth_ft_iface_iter_data {
 338         struct hostapd_data *src_hapd;
 339         const u8 *dst;
 340         const u8 *data;
 341         size_t data_len;
 342 };
 343
 344
 345 static int hostapd_wpa_auth_ft_iter(struct hostapd_iface *iface, void *ctx)
 346 {
 347         struct wpa_auth_ft_iface_iter_data *idata = ctx;
 348         struct hostapd_data *hapd;
 349         size_t j;
 350
 351         for (j = 0; j < iface->num_bss; j++) {
 352                 hapd = iface->bss[j];
 353                 if (hapd == idata->src_hapd)
 354                         continue;
 355                 if (os_memcmp(hapd->own_addr, idata->dst, ETH_ALEN) == 0) {
 356                         wpa_printf(MSG_DEBUG, "FT: Send RRB data directly to "
 357                                    "locally managed BSS " MACSTR "@%s -> "
 358                                    MACSTR "@%s",
 359                                    MAC2STR(idata->src_hapd->own_addr),
 360                                    idata->src_hapd->conf->iface,
 361                                    MAC2STR(hapd->own_addr), hapd->conf->iface);
 362                         wpa_ft_rrb_rx(hapd->wpa_auth,
 363                                       idata->src_hapd->own_addr,
 364                                       idata->data, idata->data_len);
 365                         return 1;
 366                 }
 367         }
 368
 369         return 0;
 370 }
 371
 372 #endif /* CONFIG_IEEE80211R */
 373
 374
 375 static int hostapd_wpa_auth_send_ether(void *ctx, const u8 *dst, u16 proto,
 376                                        const u8 *data, size_t data_len)
 377 {
 378         struct hostapd_data *hapd = ctx;
 379         struct l2_ethhdr *buf;
 380         int ret;
 381
 382 #ifdef CONFIG_IEEE80211R
 383         if (proto == ETH_P_RRB && hapd->iface->interfaces &&
 384             hapd->iface->interfaces->for_each_interface) {
 385                 int res;
 386                 struct wpa_auth_ft_iface_iter_data idata;
 387                 idata.src_hapd = hapd;
 388                 idata.dst = dst;
 389                 idata.data = data;
 390                 idata.data_len = data_len;
 391                 res = hapd->iface->interfaces->for_each_interface(
 392                         hapd->iface->interfaces, hostapd_wpa_auth_ft_iter,
 393                         &idata);
 394                 if (res == 1)
 395                         return data_len;
 396         }
 397 #endif /* CONFIG_IEEE80211R */
 398
 399         if (hapd->driver && hapd->driver->send_ether)
 400                 return hapd->driver->send_ether(hapd->drv_priv, dst,
 401                                                 hapd->own_addr, proto,
 402                                                 data, data_len);
 403         if (hapd->l2 == NULL)
 404                 return -1;
 405
 406         buf = os_malloc(sizeof(*buf) + data_len);
 407         if (buf == NULL)
 408                 return -1;
 409         os_memcpy(buf->h_dest, dst, ETH_ALEN);
 410         os_memcpy(buf->h_source, hapd->own_addr, ETH_ALEN);
 411         buf->h_proto = host_to_be16(proto);
 412         os_memcpy(buf + 1, data, data_len);
 413         ret = l2_packet_send(hapd->l2, dst, proto, (u8 *) buf,
 414                              sizeof(*buf) + data_len);
 415         os_free(buf);
 416         return ret;
 417 }
 418
 419
 420 #ifdef CONFIG_IEEE80211R
 421
 422 static int hostapd_wpa_auth_send_ft_action(void *ctx, const u8 *dst,
 423                                            const u8 *data, size_t data_len)
 424 {
 425         struct hostapd_data *hapd = ctx;
 426         int res;
 427         struct ieee80211_mgmt *m;
 428         size_t mlen;
 429         struct sta_info *sta;
 430
 431         sta = ap_get_sta(hapd, dst);
 432         if (sta == NULL || sta->wpa_sm == NULL)
 433                 return -1;
 434
 435         m = os_zalloc(sizeof(*m) + data_len);
 436         if (m == NULL)
 437                 return -1;
 438         mlen = ((u8 *) &m->u - (u8 *) m) + data_len;
 439         m->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
 440                                         WLAN_FC_STYPE_ACTION);
 441         os_memcpy(m->da, dst, ETH_ALEN);
 442         os_memcpy(m->sa, hapd->own_addr, ETH_ALEN);
 443         os_memcpy(m->bssid, hapd->own_addr, ETH_ALEN);
 444         os_memcpy(&m->u, data, data_len);
 445
 446         res = hostapd_drv_send_mlme(hapd, (u8 *) m, mlen, 0);
 447         os_free(m);
 448         return res;
 449 }
 450
 451
 452 static struct wpa_state_machine *
 453 hostapd_wpa_auth_add_sta(void *ctx, const u8 *sta_addr)
 454 {
 455         struct hostapd_data *hapd = ctx;
 456         struct sta_info *sta;
 457
 458         if (hostapd_add_sta_node(hapd, sta_addr, WLAN_AUTH_FT) < 0)
 459                 return NULL;
 460
 461         sta = ap_sta_add(hapd, sta_addr);
 462         if (sta == NULL)
 463                 return NULL;
 464         if (sta->wpa_sm) {
 465                 sta->auth_alg = WLAN_AUTH_FT;
 466                 return sta->wpa_sm;
 467         }
 468
 469         sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr);
 470         if (sta->wpa_sm == NULL) {
 471                 ap_free_sta(hapd, sta);
 472                 return NULL;
 473         }
 474         sta->auth_alg = WLAN_AUTH_FT;
 475
 476         return sta->wpa_sm;
 477 }
 478
 479
 480 static void hostapd_rrb_receive(void *ctx, const u8 *src_addr, const u8 *buf,
 481                                 size_t len)
 482 {
 483         struct hostapd_data *hapd = ctx;
 484         struct l2_ethhdr *ethhdr;
 485         if (len < sizeof(*ethhdr))
 486                 return;
 487         ethhdr = (struct l2_ethhdr *) buf;
 488         wpa_printf(MSG_DEBUG, "FT: RRB received packet " MACSTR " -> "
 489                    MACSTR, MAC2STR(ethhdr->h_source), MAC2STR(ethhdr->h_dest));
 490         wpa_ft_rrb_rx(hapd->wpa_auth, ethhdr->h_source, buf + sizeof(*ethhdr),
 491                       len - sizeof(*ethhdr));
 492 }
 493
 494
 495 static int hostapd_wpa_auth_add_tspec(void *ctx, const u8 *sta_addr,
 496                                       u8 *tspec_ie, size_t tspec_ielen)
 497 {
 498         struct hostapd_data *hapd = ctx;
 499         return hostapd_add_tspec(hapd, sta_addr, tspec_ie, tspec_ielen);
 500 }
 501
 502 #endif /* CONFIG_IEEE80211R */
 503
 504
 505 int hostapd_setup_wpa(struct hostapd_data *hapd)
 506 {
 507         struct wpa_auth_config _conf;
 508         struct wpa_auth_callbacks cb;
 509         const u8 *wpa_ie;
 510         size_t wpa_ie_len;
 511
 512         hostapd_wpa_auth_conf(hapd->conf, &_conf);
 513         if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_EAPOL_TX_STATUS)
 514                 _conf.tx_status = 1;
 515         if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_MLME)
 516                 _conf.ap_mlme = 1;
 517         os_memset(&cb, 0, sizeof(cb));
 518         cb.ctx = hapd;
 519         cb.logger = hostapd_wpa_auth_logger;
 520         cb.disconnect = hostapd_wpa_auth_disconnect;
 521         cb.mic_failure_report = hostapd_wpa_auth_mic_failure_report;
 522         cb.set_eapol = hostapd_wpa_auth_set_eapol;
 523         cb.get_eapol = hostapd_wpa_auth_get_eapol;
 524         cb.get_psk = hostapd_wpa_auth_get_psk;
 525         cb.get_msk = hostapd_wpa_auth_get_msk;
 526         cb.set_key = hostapd_wpa_auth_set_key;
 527         cb.get_seqnum = hostapd_wpa_auth_get_seqnum;
 528         cb.send_eapol = hostapd_wpa_auth_send_eapol;
 529         cb.for_each_sta = hostapd_wpa_auth_for_each_sta;
 530         cb.for_each_auth = hostapd_wpa_auth_for_each_auth;
 531         cb.send_ether = hostapd_wpa_auth_send_ether;
 532 #ifdef CONFIG_IEEE80211R
 533         cb.send_ft_action = hostapd_wpa_auth_send_ft_action;
 534         cb.add_sta = hostapd_wpa_auth_add_sta;
 535         cb.add_tspec = hostapd_wpa_auth_add_tspec;
 536 #endif /* CONFIG_IEEE80211R */
 537         hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb);
 538         if (hapd->wpa_auth == NULL) {
 539                 wpa_printf(MSG_ERROR, "WPA initialization failed.");
 540                 return -1;
 541         }
 542
 543         if (hostapd_set_privacy(hapd, 1)) {
 544                 wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked "
 545                            "for interface %s", hapd->conf->iface);
 546                 return -1;
 547         }
 548
 549         wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len);
 550         if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len)) {
 551                 wpa_printf(MSG_ERROR, "Failed to configure WPA IE for "
 552                            "the kernel driver.");
 553                 return -1;
 554         }
 555
 556         if (rsn_preauth_iface_init(hapd)) {
 557                 wpa_printf(MSG_ERROR, "Initialization of RSN "
 558                            "pre-authentication failed.");
 559                 return -1;
 560         }
 561
 562 #ifdef CONFIG_IEEE80211R
 563         if (!hostapd_drv_none(hapd)) {
 564                 hapd->l2 = l2_packet_init(hapd->conf->bridge[0] ?
 565                                           hapd->conf->bridge :
 566                                           hapd->conf->iface, NULL, ETH_P_RRB,
 567                                           hostapd_rrb_receive, hapd, 1);
 568                 if (hapd->l2 == NULL &&
 569                     (hapd->driver == NULL ||
 570                      hapd->driver->send_ether == NULL)) {
 571                         wpa_printf(MSG_ERROR, "Failed to open l2_packet "
 572                                    "interface");
 573                         return -1;
 574                 }
 575         }
 576 #endif /* CONFIG_IEEE80211R */
 577
 578         return 0;
 579
 580 }
 581
 582
 583 void hostapd_reconfig_wpa(struct hostapd_data *hapd)
 584 {
 585         struct wpa_auth_config wpa_auth_conf;
 586         hostapd_wpa_auth_conf(hapd->conf, &wpa_auth_conf);
 587         wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf);
 588 }
 589
 590
 591 void hostapd_deinit_wpa(struct hostapd_data *hapd)
 592 {
 593         ieee80211_tkip_countermeasures_deinit(hapd);
 594         rsn_preauth_iface_deinit(hapd);
 595         if (hapd->wpa_auth) {
 596                 wpa_deinit(hapd->wpa_auth);
 597                 hapd->wpa_auth = NULL;
 598
 599                 if (hostapd_set_privacy(hapd, 0)) {
 600                         wpa_printf(MSG_DEBUG, "Could not disable "
 601                                    "PrivacyInvoked for interface %s",
 602                                    hapd->conf->iface);
 603                 }
 604
 605                 if (hostapd_set_generic_elem(hapd, (u8 *) "", 0)) {
 606                         wpa_printf(MSG_DEBUG, "Could not remove generic "
 607                                    "information element from interface %s",
 608                                    hapd->conf->iface);
 609                 }
 610         }
 611         ieee802_1x_deinit(hapd);
 612
 613 #ifdef CONFIG_IEEE80211R
 614         l2_packet_deinit(hapd->l2);
 615 #endif /* CONFIG_IEEE80211R */
 616 }