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