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 "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 hostapd_config *iconf,
  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         wconf->group_mgmt_cipher = conf->group_mgmt_cipher;
  53 #endif /* CONFIG_IEEE80211W */
  54 #ifdef CONFIG_IEEE80211R
  55         wconf->ssid_len = conf->ssid.ssid_len;
  56         if (wconf->ssid_len > SSID_LEN)
  57                 wconf->ssid_len = SSID_LEN;
  58         os_memcpy(wconf->ssid, conf->ssid.ssid, wconf->ssid_len);
  59         os_memcpy(wconf->mobility_domain, conf->mobility_domain,
  60                   MOBILITY_DOMAIN_ID_LEN);
  61         if (conf->nas_identifier &&
  62             os_strlen(conf->nas_identifier) <= FT_R0KH_ID_MAX_LEN) {
  63                 wconf->r0_key_holder_len = os_strlen(conf->nas_identifier);
  64                 os_memcpy(wconf->r0_key_holder, conf->nas_identifier,
  65                           wconf->r0_key_holder_len);
  66         }
  67         os_memcpy(wconf->r1_key_holder, conf->r1_key_holder, FT_R1KH_ID_LEN);
  68         wconf->r0_key_lifetime = conf->r0_key_lifetime;
  69         wconf->reassociation_deadline = conf->reassociation_deadline;
  70         wconf->r0kh_list = conf->r0kh_list;
  71         wconf->r1kh_list = conf->r1kh_list;
  72         wconf->pmk_r1_push = conf->pmk_r1_push;
  73         wconf->ft_over_ds = conf->ft_over_ds;
  74 #endif /* CONFIG_IEEE80211R */
  75 #ifdef CONFIG_HS20
  76         wconf->disable_gtk = conf->disable_dgaf;
  77         if (conf->osen) {
  78                 wconf->disable_gtk = 1;
  79                 wconf->wpa = WPA_PROTO_OSEN;
  80                 wconf->wpa_key_mgmt = WPA_KEY_MGMT_OSEN;
  81                 wconf->wpa_pairwise = 0;
  82                 wconf->wpa_group = WPA_CIPHER_CCMP;
  83                 wconf->rsn_pairwise = WPA_CIPHER_CCMP;
  84                 wconf->rsn_preauth = 0;
  85                 wconf->disable_pmksa_caching = 1;
  86 #ifdef CONFIG_IEEE80211W
  87                 wconf->ieee80211w = 1;
  88 #endif /* CONFIG_IEEE80211W */
  89         }
  90 #endif /* CONFIG_HS20 */
  91 #ifdef CONFIG_TESTING_OPTIONS
  92         wconf->corrupt_gtk_rekey_mic_probability =
  93                 iconf->corrupt_gtk_rekey_mic_probability;
  94 #endif /* CONFIG_TESTING_OPTIONS */
  95 #ifdef CONFIG_P2P
  96         os_memcpy(wconf->ip_addr_go, conf->ip_addr_go, 4);
  97         os_memcpy(wconf->ip_addr_mask, conf->ip_addr_mask, 4);
  98         os_memcpy(wconf->ip_addr_start, conf->ip_addr_start, 4);
  99         os_memcpy(wconf->ip_addr_end, conf->ip_addr_end, 4);
 100 #endif /* CONFIG_P2P */
 101 }
 102
 103
 104 static void hostapd_wpa_auth_logger(void *ctx, const u8 *addr,
 105                                     logger_level level, const char *txt)
 106 {
 107 #ifndef CONFIG_NO_HOSTAPD_LOGGER
 108         struct hostapd_data *hapd = ctx;
 109         int hlevel;
 110
 111         switch (level) {
 112         case LOGGER_WARNING:
 113                 hlevel = HOSTAPD_LEVEL_WARNING;
 114                 break;
 115         case LOGGER_INFO:
 116                 hlevel = HOSTAPD_LEVEL_INFO;
 117                 break;
 118         case LOGGER_DEBUG:
 119         default:
 120                 hlevel = HOSTAPD_LEVEL_DEBUG;
 121                 break;
 122         }
 123
 124         hostapd_logger(hapd, addr, HOSTAPD_MODULE_WPA, hlevel, "%s", txt);
 125 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
 126 }
 127
 128
 129 static void hostapd_wpa_auth_disconnect(void *ctx, const u8 *addr,
 130                                         u16 reason)
 131 {
 132         struct hostapd_data *hapd = ctx;
 133         wpa_printf(MSG_DEBUG, "%s: WPA authenticator requests disconnect: "
 134                    "STA " MACSTR " reason %d",
 135                    __func__, MAC2STR(addr), reason);
 136         ap_sta_disconnect(hapd, NULL, addr, reason);
 137 }
 138
 139
 140 static int hostapd_wpa_auth_mic_failure_report(void *ctx, const u8 *addr)
 141 {
 142         struct hostapd_data *hapd = ctx;
 143         return michael_mic_failure(hapd, addr, 0);
 144 }
 145
 146
 147 static void hostapd_wpa_auth_set_eapol(void *ctx, const u8 *addr,
 148                                        wpa_eapol_variable var, int value)
 149 {
 150         struct hostapd_data *hapd = ctx;
 151         struct sta_info *sta = ap_get_sta(hapd, addr);
 152         if (sta == NULL)
 153                 return;
 154         switch (var) {
 155         case WPA_EAPOL_portEnabled:
 156                 ieee802_1x_notify_port_enabled(sta->eapol_sm, value);
 157                 break;
 158         case WPA_EAPOL_portValid:
 159                 ieee802_1x_notify_port_valid(sta->eapol_sm, value);
 160                 break;
 161         case WPA_EAPOL_authorized:
 162                 ieee802_1x_set_sta_authorized(hapd, sta, value);
 163                 break;
 164         case WPA_EAPOL_portControl_Auto:
 165                 if (sta->eapol_sm)
 166                         sta->eapol_sm->portControl = Auto;
 167                 break;
 168         case WPA_EAPOL_keyRun:
 169                 if (sta->eapol_sm)
 170                         sta->eapol_sm->keyRun = value ? TRUE : FALSE;
 171                 break;
 172         case WPA_EAPOL_keyAvailable:
 173                 if (sta->eapol_sm)
 174                         sta->eapol_sm->eap_if->eapKeyAvailable =
 175                                 value ? TRUE : FALSE;
 176                 break;
 177         case WPA_EAPOL_keyDone:
 178                 if (sta->eapol_sm)
 179                         sta->eapol_sm->keyDone = value ? TRUE : FALSE;
 180                 break;
 181         case WPA_EAPOL_inc_EapolFramesTx:
 182                 if (sta->eapol_sm)
 183                         sta->eapol_sm->dot1xAuthEapolFramesTx++;
 184                 break;
 185         }
 186 }
 187
 188
 189 static int hostapd_wpa_auth_get_eapol(void *ctx, const u8 *addr,
 190                                       wpa_eapol_variable var)
 191 {
 192         struct hostapd_data *hapd = ctx;
 193         struct sta_info *sta = ap_get_sta(hapd, addr);
 194         if (sta == NULL || sta->eapol_sm == NULL)
 195                 return -1;
 196         switch (var) {
 197         case WPA_EAPOL_keyRun:
 198                 return sta->eapol_sm->keyRun;
 199         case WPA_EAPOL_keyAvailable:
 200                 return sta->eapol_sm->eap_if->eapKeyAvailable;
 201         default:
 202                 return -1;
 203         }
 204 }
 205
 206
 207 static const u8 * hostapd_wpa_auth_get_psk(void *ctx, const u8 *addr,
 208                                            const u8 *p2p_dev_addr,
 209                                            const u8 *prev_psk)
 210 {
 211         struct hostapd_data *hapd = ctx;
 212         struct sta_info *sta = ap_get_sta(hapd, addr);
 213         const u8 *psk;
 214
 215 #ifdef CONFIG_SAE
 216         if (sta && sta->auth_alg == WLAN_AUTH_SAE) {
 217                 if (!sta->sae || prev_psk)
 218                         return NULL;
 219                 return sta->sae->pmk;
 220         }
 221 #endif /* CONFIG_SAE */
 222
 223         psk = hostapd_get_psk(hapd->conf, addr, p2p_dev_addr, prev_psk);
 224         /*
 225          * This is about to iterate over all psks, prev_psk gives the last
 226          * returned psk which should not be returned again.
 227          * logic list (all hostapd_get_psk; all sta->psk)
 228          */
 229         if (sta && sta->psk && !psk) {
 230                 struct hostapd_sta_wpa_psk_short *pos;
 231                 psk = sta->psk->psk;
 232                 for (pos = sta->psk; pos; pos = pos->next) {
 233                         if (pos->psk == prev_psk) {
 234                                 psk = pos->next ? pos->next->psk : NULL;
 235                                 break;
 236                         }
 237                 }
 238         }
 239         return psk;
 240 }
 241
 242
 243 static int hostapd_wpa_auth_get_msk(void *ctx, const u8 *addr, u8 *msk,
 244                                     size_t *len)
 245 {
 246         struct hostapd_data *hapd = ctx;
 247         const u8 *key;
 248         size_t keylen;
 249         struct sta_info *sta;
 250
 251         sta = ap_get_sta(hapd, addr);
 252         if (sta == NULL) {
 253                 wpa_printf(MSG_DEBUG, "AUTH_GET_MSK: Cannot find STA");
 254                 return -1;
 255         }
 256
 257         key = ieee802_1x_get_key(sta->eapol_sm, &keylen);
 258         if (key == NULL) {
 259                 wpa_printf(MSG_DEBUG, "AUTH_GET_MSK: Key is null, eapol_sm: %p",
 260                            sta->eapol_sm);
 261                 return -1;
 262         }
 263
 264         if (keylen > *len)
 265                 keylen = *len;
 266         os_memcpy(msk, key, keylen);
 267         *len = keylen;
 268
 269         return 0;
 270 }
 271
 272
 273 static int hostapd_wpa_auth_set_key(void *ctx, int vlan_id, enum wpa_alg alg,
 274                                     const u8 *addr, int idx, u8 *key,
 275                                     size_t key_len)
 276 {
 277         struct hostapd_data *hapd = ctx;
 278         const char *ifname = hapd->conf->iface;
 279
 280         if (vlan_id > 0) {
 281                 ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id);
 282                 if (ifname == NULL)
 283                         return -1;
 284         }
 285
 286         return hostapd_drv_set_key(ifname, hapd, alg, addr, idx, 1, NULL, 0,
 287                                    key, key_len);
 288 }
 289
 290
 291 static int hostapd_wpa_auth_get_seqnum(void *ctx, const u8 *addr, int idx,
 292                                        u8 *seq)
 293 {
 294         struct hostapd_data *hapd = ctx;
 295         return hostapd_get_seqnum(hapd->conf->iface, hapd, addr, idx, seq);
 296 }
 297
 298
 299 static int hostapd_wpa_auth_send_eapol(void *ctx, const u8 *addr,
 300                                        const u8 *data, size_t data_len,
 301                                        int encrypt)
 302 {
 303         struct hostapd_data *hapd = ctx;
 304         struct sta_info *sta;
 305         u32 flags = 0;
 306
 307 #ifdef CONFIG_TESTING_OPTIONS
 308         if (hapd->ext_eapol_frame_io) {
 309                 size_t hex_len = 2 * data_len + 1;
 310                 char *hex = os_malloc(hex_len);
 311
 312                 if (hex == NULL)
 313                         return -1;
 314                 wpa_snprintf_hex(hex, hex_len, data, data_len);
 315                 wpa_msg(hapd->msg_ctx, MSG_INFO, "EAPOL-TX " MACSTR " %s",
 316                         MAC2STR(addr), hex);
 317                 os_free(hex);
 318                 return 0;
 319         }
 320 #endif /* CONFIG_TESTING_OPTIONS */
 321
 322         sta = ap_get_sta(hapd, addr);
 323         if (sta)
 324                 flags = hostapd_sta_flags_to_drv(sta->flags);
 325
 326         return hostapd_drv_hapd_send_eapol(hapd, addr, data, data_len,
 327                                            encrypt, flags);
 328 }
 329
 330
 331 static int hostapd_wpa_auth_for_each_sta(
 332         void *ctx, int (*cb)(struct wpa_state_machine *sm, void *ctx),
 333         void *cb_ctx)
 334 {
 335         struct hostapd_data *hapd = ctx;
 336         struct sta_info *sta;
 337
 338         for (sta = hapd->sta_list; sta; sta = sta->next) {
 339                 if (sta->wpa_sm && cb(sta->wpa_sm, cb_ctx))
 340                         return 1;
 341         }
 342         return 0;
 343 }
 344
 345
 346 struct wpa_auth_iface_iter_data {
 347         int (*cb)(struct wpa_authenticator *sm, void *ctx);
 348         void *cb_ctx;
 349 };
 350
 351 static int wpa_auth_iface_iter(struct hostapd_iface *iface, void *ctx)
 352 {
 353         struct wpa_auth_iface_iter_data *data = ctx;
 354         size_t i;
 355         for (i = 0; i < iface->num_bss; i++) {
 356                 if (iface->bss[i]->wpa_auth &&
 357                     data->cb(iface->bss[i]->wpa_auth, data->cb_ctx))
 358                         return 1;
 359         }
 360         return 0;
 361 }
 362
 363
 364 static int hostapd_wpa_auth_for_each_auth(
 365         void *ctx, int (*cb)(struct wpa_authenticator *sm, void *ctx),
 366         void *cb_ctx)
 367 {
 368         struct hostapd_data *hapd = ctx;
 369         struct wpa_auth_iface_iter_data data;
 370         if (hapd->iface->interfaces == NULL ||
 371             hapd->iface->interfaces->for_each_interface == NULL)
 372                 return -1;
 373         data.cb = cb;
 374         data.cb_ctx = cb_ctx;
 375         return hapd->iface->interfaces->for_each_interface(
 376                 hapd->iface->interfaces, wpa_auth_iface_iter, &data);
 377 }
 378
 379
 380 #ifdef CONFIG_IEEE80211R
 381
 382 struct wpa_auth_ft_iface_iter_data {
 383         struct hostapd_data *src_hapd;
 384         const u8 *dst;
 385         const u8 *data;
 386         size_t data_len;
 387 };
 388
 389
 390 static int hostapd_wpa_auth_ft_iter(struct hostapd_iface *iface, void *ctx)
 391 {
 392         struct wpa_auth_ft_iface_iter_data *idata = ctx;
 393         struct hostapd_data *hapd;
 394         size_t j;
 395
 396         for (j = 0; j < iface->num_bss; j++) {
 397                 hapd = iface->bss[j];
 398                 if (hapd == idata->src_hapd)
 399                         continue;
 400                 if (os_memcmp(hapd->own_addr, idata->dst, ETH_ALEN) == 0) {
 401                         wpa_printf(MSG_DEBUG, "FT: Send RRB data directly to "
 402                                    "locally managed BSS " MACSTR "@%s -> "
 403                                    MACSTR "@%s",
 404                                    MAC2STR(idata->src_hapd->own_addr),
 405                                    idata->src_hapd->conf->iface,
 406                                    MAC2STR(hapd->own_addr), hapd->conf->iface);
 407                         wpa_ft_rrb_rx(hapd->wpa_auth,
 408                                       idata->src_hapd->own_addr,
 409                                       idata->data, idata->data_len);
 410                         return 1;
 411                 }
 412         }
 413
 414         return 0;
 415 }
 416
 417 #endif /* CONFIG_IEEE80211R */
 418
 419
 420 static int hostapd_wpa_auth_send_ether(void *ctx, const u8 *dst, u16 proto,
 421                                        const u8 *data, size_t data_len)
 422 {
 423         struct hostapd_data *hapd = ctx;
 424         struct l2_ethhdr *buf;
 425         int ret;
 426
 427 #ifdef CONFIG_TESTING_OPTIONS
 428         if (hapd->ext_eapol_frame_io && proto == ETH_P_EAPOL) {
 429                 size_t hex_len = 2 * data_len + 1;
 430                 char *hex = os_malloc(hex_len);
 431
 432                 if (hex == NULL)
 433                         return -1;
 434                 wpa_snprintf_hex(hex, hex_len, data, data_len);
 435                 wpa_msg(hapd->msg_ctx, MSG_INFO, "EAPOL-TX " MACSTR " %s",
 436                         MAC2STR(dst), hex);
 437                 os_free(hex);
 438                 return 0;
 439         }
 440 #endif /* CONFIG_TESTING_OPTIONS */
 441
 442 #ifdef CONFIG_IEEE80211R
 443         if (proto == ETH_P_RRB && hapd->iface->interfaces &&
 444             hapd->iface->interfaces->for_each_interface) {
 445                 int res;
 446                 struct wpa_auth_ft_iface_iter_data idata;
 447                 idata.src_hapd = hapd;
 448                 idata.dst = dst;
 449                 idata.data = data;
 450                 idata.data_len = data_len;
 451                 res = hapd->iface->interfaces->for_each_interface(
 452                         hapd->iface->interfaces, hostapd_wpa_auth_ft_iter,
 453                         &idata);
 454                 if (res == 1)
 455                         return data_len;
 456         }
 457 #endif /* CONFIG_IEEE80211R */
 458
 459         if (hapd->driver && hapd->driver->send_ether)
 460                 return hapd->driver->send_ether(hapd->drv_priv, dst,
 461                                                 hapd->own_addr, proto,
 462                                                 data, data_len);
 463         if (hapd->l2 == NULL)
 464                 return -1;
 465
 466         buf = os_malloc(sizeof(*buf) + data_len);
 467         if (buf == NULL)
 468                 return -1;
 469         os_memcpy(buf->h_dest, dst, ETH_ALEN);
 470         os_memcpy(buf->h_source, hapd->own_addr, ETH_ALEN);
 471         buf->h_proto = host_to_be16(proto);
 472         os_memcpy(buf + 1, data, data_len);
 473         ret = l2_packet_send(hapd->l2, dst, proto, (u8 *) buf,
 474                              sizeof(*buf) + data_len);
 475         os_free(buf);
 476         return ret;
 477 }
 478
 479
 480 #ifdef CONFIG_IEEE80211R
 481
 482 static int hostapd_wpa_auth_send_ft_action(void *ctx, const u8 *dst,
 483                                            const u8 *data, size_t data_len)
 484 {
 485         struct hostapd_data *hapd = ctx;
 486         int res;
 487         struct ieee80211_mgmt *m;
 488         size_t mlen;
 489         struct sta_info *sta;
 490
 491         sta = ap_get_sta(hapd, dst);
 492         if (sta == NULL || sta->wpa_sm == NULL)
 493                 return -1;
 494
 495         m = os_zalloc(sizeof(*m) + data_len);
 496         if (m == NULL)
 497                 return -1;
 498         mlen = ((u8 *) &m->u - (u8 *) m) + data_len;
 499         m->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
 500                                         WLAN_FC_STYPE_ACTION);
 501         os_memcpy(m->da, dst, ETH_ALEN);
 502         os_memcpy(m->sa, hapd->own_addr, ETH_ALEN);
 503         os_memcpy(m->bssid, hapd->own_addr, ETH_ALEN);
 504         os_memcpy(&m->u, data, data_len);
 505
 506         res = hostapd_drv_send_mlme(hapd, (u8 *) m, mlen, 0);
 507         os_free(m);
 508         return res;
 509 }
 510
 511
 512 static struct wpa_state_machine *
 513 hostapd_wpa_auth_add_sta(void *ctx, const u8 *sta_addr)
 514 {
 515         struct hostapd_data *hapd = ctx;
 516         struct sta_info *sta;
 517
 518         if (hostapd_add_sta_node(hapd, sta_addr, WLAN_AUTH_FT) < 0)
 519                 return NULL;
 520
 521         sta = ap_sta_add(hapd, sta_addr);
 522         if (sta == NULL)
 523                 return NULL;
 524         if (sta->wpa_sm) {
 525                 sta->auth_alg = WLAN_AUTH_FT;
 526                 return sta->wpa_sm;
 527         }
 528
 529         sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr, NULL);
 530         if (sta->wpa_sm == NULL) {
 531                 ap_free_sta(hapd, sta);
 532                 return NULL;
 533         }
 534         sta->auth_alg = WLAN_AUTH_FT;
 535
 536         return sta->wpa_sm;
 537 }
 538
 539
 540 static void hostapd_rrb_receive(void *ctx, const u8 *src_addr, const u8 *buf,
 541                                 size_t len)
 542 {
 543         struct hostapd_data *hapd = ctx;
 544         struct l2_ethhdr *ethhdr;
 545         if (len < sizeof(*ethhdr))
 546                 return;
 547         ethhdr = (struct l2_ethhdr *) buf;
 548         wpa_printf(MSG_DEBUG, "FT: RRB received packet " MACSTR " -> "
 549                    MACSTR, MAC2STR(ethhdr->h_source), MAC2STR(ethhdr->h_dest));
 550         wpa_ft_rrb_rx(hapd->wpa_auth, ethhdr->h_source, buf + sizeof(*ethhdr),
 551                       len - sizeof(*ethhdr));
 552 }
 553
 554
 555 static int hostapd_wpa_auth_add_tspec(void *ctx, const u8 *sta_addr,
 556                                       u8 *tspec_ie, size_t tspec_ielen)
 557 {
 558         struct hostapd_data *hapd = ctx;
 559         return hostapd_add_tspec(hapd, sta_addr, tspec_ie, tspec_ielen);
 560 }
 561
 562 #endif /* CONFIG_IEEE80211R */
 563
 564
 565 int hostapd_setup_wpa(struct hostapd_data *hapd)
 566 {
 567         struct wpa_auth_config _conf;
 568         struct wpa_auth_callbacks cb;
 569         const u8 *wpa_ie;
 570         size_t wpa_ie_len;
 571
 572         hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &_conf);
 573         if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_EAPOL_TX_STATUS)
 574                 _conf.tx_status = 1;
 575         if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_MLME)
 576                 _conf.ap_mlme = 1;
 577         os_memset(&cb, 0, sizeof(cb));
 578         cb.ctx = hapd;
 579         cb.logger = hostapd_wpa_auth_logger;
 580         cb.disconnect = hostapd_wpa_auth_disconnect;
 581         cb.mic_failure_report = hostapd_wpa_auth_mic_failure_report;
 582         cb.set_eapol = hostapd_wpa_auth_set_eapol;
 583         cb.get_eapol = hostapd_wpa_auth_get_eapol;
 584         cb.get_psk = hostapd_wpa_auth_get_psk;
 585         cb.get_msk = hostapd_wpa_auth_get_msk;
 586         cb.set_key = hostapd_wpa_auth_set_key;
 587         cb.get_seqnum = hostapd_wpa_auth_get_seqnum;
 588         cb.send_eapol = hostapd_wpa_auth_send_eapol;
 589         cb.for_each_sta = hostapd_wpa_auth_for_each_sta;
 590         cb.for_each_auth = hostapd_wpa_auth_for_each_auth;
 591         cb.send_ether = hostapd_wpa_auth_send_ether;
 592 #ifdef CONFIG_IEEE80211R
 593         cb.send_ft_action = hostapd_wpa_auth_send_ft_action;
 594         cb.add_sta = hostapd_wpa_auth_add_sta;
 595         cb.add_tspec = hostapd_wpa_auth_add_tspec;
 596 #endif /* CONFIG_IEEE80211R */
 597         hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb);
 598         if (hapd->wpa_auth == NULL) {
 599                 wpa_printf(MSG_ERROR, "WPA initialization failed.");
 600                 return -1;
 601         }
 602
 603         if (hostapd_set_privacy(hapd, 1)) {
 604                 wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked "
 605                            "for interface %s", hapd->conf->iface);
 606                 return -1;
 607         }
 608
 609         wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len);
 610         if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len)) {
 611                 wpa_printf(MSG_ERROR, "Failed to configure WPA IE for "
 612                            "the kernel driver.");
 613                 return -1;
 614         }
 615
 616         if (rsn_preauth_iface_init(hapd)) {
 617                 wpa_printf(MSG_ERROR, "Initialization of RSN "
 618                            "pre-authentication failed.");
 619                 return -1;
 620         }
 621
 622 #ifdef CONFIG_IEEE80211R
 623         if (!hostapd_drv_none(hapd)) {
 624                 hapd->l2 = l2_packet_init(hapd->conf->bridge[0] ?
 625                                           hapd->conf->bridge :
 626                                           hapd->conf->iface, NULL, ETH_P_RRB,
 627                                           hostapd_rrb_receive, hapd, 1);
 628                 if (hapd->l2 == NULL &&
 629                     (hapd->driver == NULL ||
 630                      hapd->driver->send_ether == NULL)) {
 631                         wpa_printf(MSG_ERROR, "Failed to open l2_packet "
 632                                    "interface");
 633                         return -1;
 634                 }
 635         }
 636 #endif /* CONFIG_IEEE80211R */
 637
 638         return 0;
 639
 640 }
 641
 642
 643 void hostapd_reconfig_wpa(struct hostapd_data *hapd)
 644 {
 645         struct wpa_auth_config wpa_auth_conf;
 646         hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &wpa_auth_conf);
 647         wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf);
 648 }
 649
 650
 651 void hostapd_deinit_wpa(struct hostapd_data *hapd)
 652 {
 653         ieee80211_tkip_countermeasures_deinit(hapd);
 654         rsn_preauth_iface_deinit(hapd);
 655         if (hapd->wpa_auth) {
 656                 wpa_deinit(hapd->wpa_auth);
 657                 hapd->wpa_auth = NULL;
 658
 659                 if (hostapd_set_privacy(hapd, 0)) {
 660                         wpa_printf(MSG_DEBUG, "Could not disable "
 661                                    "PrivacyInvoked for interface %s",
 662                                    hapd->conf->iface);
 663                 }
 664
 665                 if (hostapd_set_generic_elem(hapd, (u8 *) "", 0)) {
 666                         wpa_printf(MSG_DEBUG, "Could not remove generic "
 667                                    "information element from interface %s",
 668                                    hapd->conf->iface);
 669                 }
 670         }
 671         ieee802_1x_deinit(hapd);
 672
 673 #ifdef CONFIG_IEEE80211R
 674         l2_packet_deinit(hapd->l2);
 675         hapd->l2 = NULL;
 676 #endif /* CONFIG_IEEE80211R */
 677 }