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 "common/wpa_ctrl.h"
  15 #include "crypto/sha1.h"
  16 #include "eapol_auth/eapol_auth_sm.h"
  17 #include "eapol_auth/eapol_auth_sm_i.h"
  18 #include "eap_server/eap.h"
  19 #include "l2_packet/l2_packet.h"
  20 #include "hostapd.h"
  21 #include "ieee802_1x.h"
  22 #include "preauth_auth.h"
  23 #include "sta_info.h"
  24 #include "tkip_countermeasures.h"
  25 #include "ap_drv_ops.h"
  26 #include "ap_config.h"
  27 #include "wpa_auth.h"
  28 #include "wpa_auth_glue.h"
  29
  30
  31 static void hostapd_wpa_auth_conf(struct hostapd_bss_config *conf,
  32                                   struct hostapd_config *iconf,
  33                                   struct wpa_auth_config *wconf)
  34 {
  35         os_memset(wconf, 0, sizeof(*wconf));
  36         wconf->wpa = conf->wpa;
  37         wconf->wpa_key_mgmt = conf->wpa_key_mgmt;
  38         wconf->wpa_pairwise = conf->wpa_pairwise;
  39         wconf->wpa_group = conf->wpa_group;
  40         wconf->wpa_group_rekey = conf->wpa_group_rekey;
  41         wconf->wpa_strict_rekey = conf->wpa_strict_rekey;
  42         wconf->wpa_gmk_rekey = conf->wpa_gmk_rekey;
  43         wconf->wpa_ptk_rekey = conf->wpa_ptk_rekey;
  44         wconf->rsn_pairwise = conf->rsn_pairwise;
  45         wconf->rsn_preauth = conf->rsn_preauth;
  46         wconf->eapol_version = conf->eapol_version;
  47         wconf->peerkey = conf->peerkey;
  48         wconf->wmm_enabled = conf->wmm_enabled;
  49         wconf->wmm_uapsd = conf->wmm_uapsd;
  50         wconf->disable_pmksa_caching = conf->disable_pmksa_caching;
  51         wconf->okc = conf->okc;
  52 #ifdef CONFIG_IEEE80211W
  53         wconf->ieee80211w = conf->ieee80211w;
  54         wconf->group_mgmt_cipher = conf->group_mgmt_cipher;
  55 #endif /* CONFIG_IEEE80211W */
  56 #ifdef CONFIG_IEEE80211R
  57         wconf->ssid_len = conf->ssid.ssid_len;
  58         if (wconf->ssid_len > SSID_MAX_LEN)
  59                 wconf->ssid_len = SSID_MAX_LEN;
  60         os_memcpy(wconf->ssid, conf->ssid.ssid, wconf->ssid_len);
  61         os_memcpy(wconf->mobility_domain, conf->mobility_domain,
  62                   MOBILITY_DOMAIN_ID_LEN);
  63         if (conf->nas_identifier &&
  64             os_strlen(conf->nas_identifier) <= FT_R0KH_ID_MAX_LEN) {
  65                 wconf->r0_key_holder_len = os_strlen(conf->nas_identifier);
  66                 os_memcpy(wconf->r0_key_holder, conf->nas_identifier,
  67                           wconf->r0_key_holder_len);
  68         }
  69         os_memcpy(wconf->r1_key_holder, conf->r1_key_holder, FT_R1KH_ID_LEN);
  70         wconf->r0_key_lifetime = conf->r0_key_lifetime;
  71         wconf->reassociation_deadline = conf->reassociation_deadline;
  72         wconf->r0kh_list = conf->r0kh_list;
  73         wconf->r1kh_list = conf->r1kh_list;
  74         wconf->pmk_r1_push = conf->pmk_r1_push;
  75         wconf->ft_over_ds = conf->ft_over_ds;
  76 #endif /* CONFIG_IEEE80211R */
  77 #ifdef CONFIG_HS20
  78         wconf->disable_gtk = conf->disable_dgaf;
  79         if (conf->osen) {
  80                 wconf->disable_gtk = 1;
  81                 wconf->wpa = WPA_PROTO_OSEN;
  82                 wconf->wpa_key_mgmt = WPA_KEY_MGMT_OSEN;
  83                 wconf->wpa_pairwise = 0;
  84                 wconf->wpa_group = WPA_CIPHER_CCMP;
  85                 wconf->rsn_pairwise = WPA_CIPHER_CCMP;
  86                 wconf->rsn_preauth = 0;
  87                 wconf->disable_pmksa_caching = 1;
  88 #ifdef CONFIG_IEEE80211W
  89                 wconf->ieee80211w = 1;
  90 #endif /* CONFIG_IEEE80211W */
  91         }
  92 #endif /* CONFIG_HS20 */
  93 #ifdef CONFIG_TESTING_OPTIONS
  94         wconf->corrupt_gtk_rekey_mic_probability =
  95                 iconf->corrupt_gtk_rekey_mic_probability;
  96         if (conf->own_ie_override &&
  97             wpabuf_len(conf->own_ie_override) <= MAX_OWN_IE_OVERRIDE) {
  98                 wconf->own_ie_override_len = wpabuf_len(conf->own_ie_override);
  99                 os_memcpy(wconf->own_ie_override,
 100                           wpabuf_head(conf->own_ie_override),
 101                           wconf->own_ie_override_len);
 102         }
 103 #endif /* CONFIG_TESTING_OPTIONS */
 104 #ifdef CONFIG_P2P
 105         os_memcpy(wconf->ip_addr_go, conf->ip_addr_go, 4);
 106         os_memcpy(wconf->ip_addr_mask, conf->ip_addr_mask, 4);
 107         os_memcpy(wconf->ip_addr_start, conf->ip_addr_start, 4);
 108         os_memcpy(wconf->ip_addr_end, conf->ip_addr_end, 4);
 109 #endif /* CONFIG_P2P */
 110 }
 111
 112
 113 static void hostapd_wpa_auth_logger(void *ctx, const u8 *addr,
 114                                     logger_level level, const char *txt)
 115 {
 116 #ifndef CONFIG_NO_HOSTAPD_LOGGER
 117         struct hostapd_data *hapd = ctx;
 118         int hlevel;
 119
 120         switch (level) {
 121         case LOGGER_WARNING:
 122                 hlevel = HOSTAPD_LEVEL_WARNING;
 123                 break;
 124         case LOGGER_INFO:
 125                 hlevel = HOSTAPD_LEVEL_INFO;
 126                 break;
 127         case LOGGER_DEBUG:
 128         default:
 129                 hlevel = HOSTAPD_LEVEL_DEBUG;
 130                 break;
 131         }
 132
 133         hostapd_logger(hapd, addr, HOSTAPD_MODULE_WPA, hlevel, "%s", txt);
 134 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
 135 }
 136
 137
 138 static void hostapd_wpa_auth_disconnect(void *ctx, const u8 *addr,
 139                                         u16 reason)
 140 {
 141         struct hostapd_data *hapd = ctx;
 142         wpa_printf(MSG_DEBUG, "%s: WPA authenticator requests disconnect: "
 143                    "STA " MACSTR " reason %d",
 144                    __func__, MAC2STR(addr), reason);
 145         ap_sta_disconnect(hapd, NULL, addr, reason);
 146 }
 147
 148
 149 static int hostapd_wpa_auth_mic_failure_report(void *ctx, const u8 *addr)
 150 {
 151         struct hostapd_data *hapd = ctx;
 152         return michael_mic_failure(hapd, addr, 0);
 153 }
 154
 155
 156 static void hostapd_wpa_auth_psk_failure_report(void *ctx, const u8 *addr)
 157 {
 158         struct hostapd_data *hapd = ctx;
 159         wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_POSSIBLE_PSK_MISMATCH MACSTR,
 160                 MAC2STR(addr));
 161 }
 162
 163
 164 static void hostapd_wpa_auth_set_eapol(void *ctx, const u8 *addr,
 165                                        wpa_eapol_variable var, int value)
 166 {
 167         struct hostapd_data *hapd = ctx;
 168         struct sta_info *sta = ap_get_sta(hapd, addr);
 169         if (sta == NULL)
 170                 return;
 171         switch (var) {
 172         case WPA_EAPOL_portEnabled:
 173                 ieee802_1x_notify_port_enabled(sta->eapol_sm, value);
 174                 break;
 175         case WPA_EAPOL_portValid:
 176                 ieee802_1x_notify_port_valid(sta->eapol_sm, value);
 177                 break;
 178         case WPA_EAPOL_authorized:
 179                 ieee802_1x_set_sta_authorized(hapd, sta, value);
 180                 break;
 181         case WPA_EAPOL_portControl_Auto:
 182                 if (sta->eapol_sm)
 183                         sta->eapol_sm->portControl = Auto;
 184                 break;
 185         case WPA_EAPOL_keyRun:
 186                 if (sta->eapol_sm)
 187                         sta->eapol_sm->keyRun = value ? TRUE : FALSE;
 188                 break;
 189         case WPA_EAPOL_keyAvailable:
 190                 if (sta->eapol_sm)
 191                         sta->eapol_sm->eap_if->eapKeyAvailable =
 192                                 value ? TRUE : FALSE;
 193                 break;
 194         case WPA_EAPOL_keyDone:
 195                 if (sta->eapol_sm)
 196                         sta->eapol_sm->keyDone = value ? TRUE : FALSE;
 197                 break;
 198         case WPA_EAPOL_inc_EapolFramesTx:
 199                 if (sta->eapol_sm)
 200                         sta->eapol_sm->dot1xAuthEapolFramesTx++;
 201                 break;
 202         }
 203 }
 204
 205
 206 static int hostapd_wpa_auth_get_eapol(void *ctx, const u8 *addr,
 207                                       wpa_eapol_variable var)
 208 {
 209         struct hostapd_data *hapd = ctx;
 210         struct sta_info *sta = ap_get_sta(hapd, addr);
 211         if (sta == NULL || sta->eapol_sm == NULL)
 212                 return -1;
 213         switch (var) {
 214         case WPA_EAPOL_keyRun:
 215                 return sta->eapol_sm->keyRun;
 216         case WPA_EAPOL_keyAvailable:
 217                 return sta->eapol_sm->eap_if->eapKeyAvailable;
 218         default:
 219                 return -1;
 220         }
 221 }
 222
 223
 224 static const u8 * hostapd_wpa_auth_get_psk(void *ctx, const u8 *addr,
 225                                            const u8 *p2p_dev_addr,
 226                                            const u8 *prev_psk)
 227 {
 228         struct hostapd_data *hapd = ctx;
 229         struct sta_info *sta = ap_get_sta(hapd, addr);
 230         const u8 *psk;
 231
 232 #ifdef CONFIG_SAE
 233         if (sta && sta->auth_alg == WLAN_AUTH_SAE) {
 234                 if (!sta->sae || prev_psk)
 235                         return NULL;
 236                 return sta->sae->pmk;
 237         }
 238 #endif /* CONFIG_SAE */
 239
 240         psk = hostapd_get_psk(hapd->conf, addr, p2p_dev_addr, prev_psk);
 241         /*
 242          * This is about to iterate over all psks, prev_psk gives the last
 243          * returned psk which should not be returned again.
 244          * logic list (all hostapd_get_psk; all sta->psk)
 245          */
 246         if (sta && sta->psk && !psk) {
 247                 struct hostapd_sta_wpa_psk_short *pos;
 248                 psk = sta->psk->psk;
 249                 for (pos = sta->psk; pos; pos = pos->next) {
 250                         if (pos->is_passphrase) {
 251                                 pbkdf2_sha1(pos->passphrase,
 252                                             hapd->conf->ssid.ssid,
 253                                             hapd->conf->ssid.ssid_len, 4096,
 254                                             pos->psk, PMK_LEN);
 255                                 pos->is_passphrase = 0;
 256                         }
 257                         if (pos->psk == prev_psk) {
 258                                 psk = pos->next ? pos->next->psk : NULL;
 259                                 break;
 260                         }
 261                 }
 262         }
 263         return psk;
 264 }
 265
 266
 267 static int hostapd_wpa_auth_get_msk(void *ctx, const u8 *addr, u8 *msk,
 268                                     size_t *len)
 269 {
 270         struct hostapd_data *hapd = ctx;
 271         const u8 *key;
 272         size_t keylen;
 273         struct sta_info *sta;
 274
 275         sta = ap_get_sta(hapd, addr);
 276         if (sta == NULL) {
 277                 wpa_printf(MSG_DEBUG, "AUTH_GET_MSK: Cannot find STA");
 278                 return -1;
 279         }
 280
 281         key = ieee802_1x_get_key(sta->eapol_sm, &keylen);
 282         if (key == NULL) {
 283                 wpa_printf(MSG_DEBUG, "AUTH_GET_MSK: Key is null, eapol_sm: %p",
 284                            sta->eapol_sm);
 285                 return -1;
 286         }
 287
 288         if (keylen > *len)
 289                 keylen = *len;
 290         os_memcpy(msk, key, keylen);
 291         *len = keylen;
 292
 293         return 0;
 294 }
 295
 296
 297 static int hostapd_wpa_auth_set_key(void *ctx, int vlan_id, enum wpa_alg alg,
 298                                     const u8 *addr, int idx, u8 *key,
 299                                     size_t key_len)
 300 {
 301         struct hostapd_data *hapd = ctx;
 302         const char *ifname = hapd->conf->iface;
 303
 304         if (vlan_id > 0) {
 305                 ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id);
 306                 if (ifname == NULL)
 307                         return -1;
 308         }
 309
 310         return hostapd_drv_set_key(ifname, hapd, alg, addr, idx, 1, NULL, 0,
 311                                    key, key_len);
 312 }
 313
 314
 315 static int hostapd_wpa_auth_get_seqnum(void *ctx, const u8 *addr, int idx,
 316                                        u8 *seq)
 317 {
 318         struct hostapd_data *hapd = ctx;
 319         return hostapd_get_seqnum(hapd->conf->iface, hapd, addr, idx, seq);
 320 }
 321
 322
 323 static int hostapd_wpa_auth_send_eapol(void *ctx, const u8 *addr,
 324                                        const u8 *data, size_t data_len,
 325                                        int encrypt)
 326 {
 327         struct hostapd_data *hapd = ctx;
 328         struct sta_info *sta;
 329         u32 flags = 0;
 330
 331 #ifdef CONFIG_TESTING_OPTIONS
 332         if (hapd->ext_eapol_frame_io) {
 333                 size_t hex_len = 2 * data_len + 1;
 334                 char *hex = os_malloc(hex_len);
 335
 336                 if (hex == NULL)
 337                         return -1;
 338                 wpa_snprintf_hex(hex, hex_len, data, data_len);
 339                 wpa_msg(hapd->msg_ctx, MSG_INFO, "EAPOL-TX " MACSTR " %s",
 340                         MAC2STR(addr), hex);
 341                 os_free(hex);
 342                 return 0;
 343         }
 344 #endif /* CONFIG_TESTING_OPTIONS */
 345
 346         sta = ap_get_sta(hapd, addr);
 347         if (sta)
 348                 flags = hostapd_sta_flags_to_drv(sta->flags);
 349
 350         return hostapd_drv_hapd_send_eapol(hapd, addr, data, data_len,
 351                                            encrypt, flags);
 352 }
 353
 354
 355 static int hostapd_wpa_auth_for_each_sta(
 356         void *ctx, int (*cb)(struct wpa_state_machine *sm, void *ctx),
 357         void *cb_ctx)
 358 {
 359         struct hostapd_data *hapd = ctx;
 360         struct sta_info *sta;
 361
 362         for (sta = hapd->sta_list; sta; sta = sta->next) {
 363                 if (sta->wpa_sm && cb(sta->wpa_sm, cb_ctx))
 364                         return 1;
 365         }
 366         return 0;
 367 }
 368
 369
 370 struct wpa_auth_iface_iter_data {
 371         int (*cb)(struct wpa_authenticator *sm, void *ctx);
 372         void *cb_ctx;
 373 };
 374
 375 static int wpa_auth_iface_iter(struct hostapd_iface *iface, void *ctx)
 376 {
 377         struct wpa_auth_iface_iter_data *data = ctx;
 378         size_t i;
 379         for (i = 0; i < iface->num_bss; i++) {
 380                 if (iface->bss[i]->wpa_auth &&
 381                     data->cb(iface->bss[i]->wpa_auth, data->cb_ctx))
 382                         return 1;
 383         }
 384         return 0;
 385 }
 386
 387
 388 static int hostapd_wpa_auth_for_each_auth(
 389         void *ctx, int (*cb)(struct wpa_authenticator *sm, void *ctx),
 390         void *cb_ctx)
 391 {
 392         struct hostapd_data *hapd = ctx;
 393         struct wpa_auth_iface_iter_data data;
 394         if (hapd->iface->interfaces == NULL ||
 395             hapd->iface->interfaces->for_each_interface == NULL)
 396                 return -1;
 397         data.cb = cb;
 398         data.cb_ctx = cb_ctx;
 399         return hapd->iface->interfaces->for_each_interface(
 400                 hapd->iface->interfaces, wpa_auth_iface_iter, &data);
 401 }
 402
 403
 404 #ifdef CONFIG_IEEE80211R
 405
 406 struct wpa_auth_ft_iface_iter_data {
 407         struct hostapd_data *src_hapd;
 408         const u8 *dst;
 409         const u8 *data;
 410         size_t data_len;
 411 };
 412
 413
 414 static int hostapd_wpa_auth_ft_iter(struct hostapd_iface *iface, void *ctx)
 415 {
 416         struct wpa_auth_ft_iface_iter_data *idata = ctx;
 417         struct hostapd_data *hapd;
 418         size_t j;
 419
 420         for (j = 0; j < iface->num_bss; j++) {
 421                 hapd = iface->bss[j];
 422                 if (hapd == idata->src_hapd)
 423                         continue;
 424                 if (!hapd->wpa_auth)
 425                         continue;
 426                 if (os_memcmp(hapd->own_addr, idata->dst, ETH_ALEN) == 0) {
 427                         wpa_printf(MSG_DEBUG, "FT: Send RRB data directly to "
 428                                    "locally managed BSS " MACSTR "@%s -> "
 429                                    MACSTR "@%s",
 430                                    MAC2STR(idata->src_hapd->own_addr),
 431                                    idata->src_hapd->conf->iface,
 432                                    MAC2STR(hapd->own_addr), hapd->conf->iface);
 433                         wpa_ft_rrb_rx(hapd->wpa_auth,
 434                                       idata->src_hapd->own_addr,
 435                                       idata->data, idata->data_len);
 436                         return 1;
 437                 }
 438         }
 439
 440         return 0;
 441 }
 442
 443 #endif /* CONFIG_IEEE80211R */
 444
 445
 446 static int hostapd_wpa_auth_send_ether(void *ctx, const u8 *dst, u16 proto,
 447                                        const u8 *data, size_t data_len)
 448 {
 449         struct hostapd_data *hapd = ctx;
 450         struct l2_ethhdr *buf;
 451         int ret;
 452
 453 #ifdef CONFIG_TESTING_OPTIONS
 454         if (hapd->ext_eapol_frame_io && proto == ETH_P_EAPOL) {
 455                 size_t hex_len = 2 * data_len + 1;
 456                 char *hex = os_malloc(hex_len);
 457
 458                 if (hex == NULL)
 459                         return -1;
 460                 wpa_snprintf_hex(hex, hex_len, data, data_len);
 461                 wpa_msg(hapd->msg_ctx, MSG_INFO, "EAPOL-TX " MACSTR " %s",
 462                         MAC2STR(dst), hex);
 463                 os_free(hex);
 464                 return 0;
 465         }
 466 #endif /* CONFIG_TESTING_OPTIONS */
 467
 468 #ifdef CONFIG_IEEE80211R
 469         if (proto == ETH_P_RRB && hapd->iface->interfaces &&
 470             hapd->iface->interfaces->for_each_interface) {
 471                 int res;
 472                 struct wpa_auth_ft_iface_iter_data idata;
 473                 idata.src_hapd = hapd;
 474                 idata.dst = dst;
 475                 idata.data = data;
 476                 idata.data_len = data_len;
 477                 res = hapd->iface->interfaces->for_each_interface(
 478                         hapd->iface->interfaces, hostapd_wpa_auth_ft_iter,
 479                         &idata);
 480                 if (res == 1)
 481                         return data_len;
 482         }
 483 #endif /* CONFIG_IEEE80211R */
 484
 485         if (hapd->driver && hapd->driver->send_ether)
 486                 return hapd->driver->send_ether(hapd->drv_priv, dst,
 487                                                 hapd->own_addr, proto,
 488                                                 data, data_len);
 489         if (hapd->l2 == NULL)
 490                 return -1;
 491
 492         buf = os_malloc(sizeof(*buf) + data_len);
 493         if (buf == NULL)
 494                 return -1;
 495         os_memcpy(buf->h_dest, dst, ETH_ALEN);
 496         os_memcpy(buf->h_source, hapd->own_addr, ETH_ALEN);
 497         buf->h_proto = host_to_be16(proto);
 498         os_memcpy(buf + 1, data, data_len);
 499         ret = l2_packet_send(hapd->l2, dst, proto, (u8 *) buf,
 500                              sizeof(*buf) + data_len);
 501         os_free(buf);
 502         return ret;
 503 }
 504
 505
 506 #ifdef CONFIG_IEEE80211R
 507
 508 static int hostapd_wpa_auth_send_ft_action(void *ctx, const u8 *dst,
 509                                            const u8 *data, size_t data_len)
 510 {
 511         struct hostapd_data *hapd = ctx;
 512         int res;
 513         struct ieee80211_mgmt *m;
 514         size_t mlen;
 515         struct sta_info *sta;
 516
 517         sta = ap_get_sta(hapd, dst);
 518         if (sta == NULL || sta->wpa_sm == NULL)
 519                 return -1;
 520
 521         m = os_zalloc(sizeof(*m) + data_len);
 522         if (m == NULL)
 523                 return -1;
 524         mlen = ((u8 *) &m->u - (u8 *) m) + data_len;
 525         m->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
 526                                         WLAN_FC_STYPE_ACTION);
 527         os_memcpy(m->da, dst, ETH_ALEN);
 528         os_memcpy(m->sa, hapd->own_addr, ETH_ALEN);
 529         os_memcpy(m->bssid, hapd->own_addr, ETH_ALEN);
 530         os_memcpy(&m->u, data, data_len);
 531
 532         res = hostapd_drv_send_mlme(hapd, (u8 *) m, mlen, 0);
 533         os_free(m);
 534         return res;
 535 }
 536
 537
 538 static struct wpa_state_machine *
 539 hostapd_wpa_auth_add_sta(void *ctx, const u8 *sta_addr)
 540 {
 541         struct hostapd_data *hapd = ctx;
 542         struct sta_info *sta;
 543
 544         if (hostapd_add_sta_node(hapd, sta_addr, WLAN_AUTH_FT) < 0)
 545                 return NULL;
 546
 547         sta = ap_sta_add(hapd, sta_addr);
 548         if (sta == NULL)
 549                 return NULL;
 550         if (sta->wpa_sm) {
 551                 sta->auth_alg = WLAN_AUTH_FT;
 552                 return sta->wpa_sm;
 553         }
 554
 555         sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr, NULL);
 556         if (sta->wpa_sm == NULL) {
 557                 ap_free_sta(hapd, sta);
 558                 return NULL;
 559         }
 560         sta->auth_alg = WLAN_AUTH_FT;
 561
 562         return sta->wpa_sm;
 563 }
 564
 565
 566 static void hostapd_rrb_receive(void *ctx, const u8 *src_addr, const u8 *buf,
 567                                 size_t len)
 568 {
 569         struct hostapd_data *hapd = ctx;
 570         struct l2_ethhdr *ethhdr;
 571         if (len < sizeof(*ethhdr))
 572                 return;
 573         ethhdr = (struct l2_ethhdr *) buf;
 574         wpa_printf(MSG_DEBUG, "FT: RRB received packet " MACSTR " -> "
 575                    MACSTR, MAC2STR(ethhdr->h_source), MAC2STR(ethhdr->h_dest));
 576         if (!is_multicast_ether_addr(ethhdr->h_dest) &&
 577             os_memcmp(hapd->own_addr, ethhdr->h_dest, ETH_ALEN) != 0)
 578                 return;
 579         wpa_ft_rrb_rx(hapd->wpa_auth, ethhdr->h_source, buf + sizeof(*ethhdr),
 580                       len - sizeof(*ethhdr));
 581 }
 582
 583
 584 static int hostapd_wpa_auth_add_tspec(void *ctx, const u8 *sta_addr,
 585                                       u8 *tspec_ie, size_t tspec_ielen)
 586 {
 587         struct hostapd_data *hapd = ctx;
 588         return hostapd_add_tspec(hapd, sta_addr, tspec_ie, tspec_ielen);
 589 }
 590
 591 #endif /* CONFIG_IEEE80211R */
 592
 593
 594 int hostapd_setup_wpa(struct hostapd_data *hapd)
 595 {
 596         struct wpa_auth_config _conf;
 597         struct wpa_auth_callbacks cb;
 598         const u8 *wpa_ie;
 599         size_t wpa_ie_len;
 600
 601         hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &_conf);
 602         if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_EAPOL_TX_STATUS)
 603                 _conf.tx_status = 1;
 604         if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_MLME)
 605                 _conf.ap_mlme = 1;
 606         os_memset(&cb, 0, sizeof(cb));
 607         cb.ctx = hapd;
 608         cb.logger = hostapd_wpa_auth_logger;
 609         cb.disconnect = hostapd_wpa_auth_disconnect;
 610         cb.mic_failure_report = hostapd_wpa_auth_mic_failure_report;
 611         cb.psk_failure_report = hostapd_wpa_auth_psk_failure_report;
 612         cb.set_eapol = hostapd_wpa_auth_set_eapol;
 613         cb.get_eapol = hostapd_wpa_auth_get_eapol;
 614         cb.get_psk = hostapd_wpa_auth_get_psk;
 615         cb.get_msk = hostapd_wpa_auth_get_msk;
 616         cb.set_key = hostapd_wpa_auth_set_key;
 617         cb.get_seqnum = hostapd_wpa_auth_get_seqnum;
 618         cb.send_eapol = hostapd_wpa_auth_send_eapol;
 619         cb.for_each_sta = hostapd_wpa_auth_for_each_sta;
 620         cb.for_each_auth = hostapd_wpa_auth_for_each_auth;
 621         cb.send_ether = hostapd_wpa_auth_send_ether;
 622 #ifdef CONFIG_IEEE80211R
 623         cb.send_ft_action = hostapd_wpa_auth_send_ft_action;
 624         cb.add_sta = hostapd_wpa_auth_add_sta;
 625         cb.add_tspec = hostapd_wpa_auth_add_tspec;
 626 #endif /* CONFIG_IEEE80211R */
 627         hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb);
 628         if (hapd->wpa_auth == NULL) {
 629                 wpa_printf(MSG_ERROR, "WPA initialization failed.");
 630                 return -1;
 631         }
 632
 633         if (hostapd_set_privacy(hapd, 1)) {
 634                 wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked "
 635                            "for interface %s", hapd->conf->iface);
 636                 return -1;
 637         }
 638
 639         wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len);
 640         if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len)) {
 641                 wpa_printf(MSG_ERROR, "Failed to configure WPA IE for "
 642                            "the kernel driver.");
 643                 return -1;
 644         }
 645
 646         if (rsn_preauth_iface_init(hapd)) {
 647                 wpa_printf(MSG_ERROR, "Initialization of RSN "
 648                            "pre-authentication failed.");
 649                 return -1;
 650         }
 651
 652 #ifdef CONFIG_IEEE80211R
 653         if (!hostapd_drv_none(hapd) &&
 654             wpa_key_mgmt_ft(hapd->conf->wpa_key_mgmt)) {
 655                 hapd->l2 = l2_packet_init(hapd->conf->bridge[0] ?
 656                                           hapd->conf->bridge :
 657                                           hapd->conf->iface, NULL, ETH_P_RRB,
 658                                           hostapd_rrb_receive, hapd, 1);
 659                 if (hapd->l2 == NULL &&
 660                     (hapd->driver == NULL ||
 661                      hapd->driver->send_ether == NULL)) {
 662                         wpa_printf(MSG_ERROR, "Failed to open l2_packet "
 663                                    "interface");
 664                         return -1;
 665                 }
 666         }
 667 #endif /* CONFIG_IEEE80211R */
 668
 669         return 0;
 670
 671 }
 672
 673
 674 void hostapd_reconfig_wpa(struct hostapd_data *hapd)
 675 {
 676         struct wpa_auth_config wpa_auth_conf;
 677         hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &wpa_auth_conf);
 678         wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf);
 679 }
 680
 681
 682 void hostapd_deinit_wpa(struct hostapd_data *hapd)
 683 {
 684         ieee80211_tkip_countermeasures_deinit(hapd);
 685         rsn_preauth_iface_deinit(hapd);
 686         if (hapd->wpa_auth) {
 687                 wpa_deinit(hapd->wpa_auth);
 688                 hapd->wpa_auth = NULL;
 689
 690                 if (hapd->drv_priv && hostapd_set_privacy(hapd, 0)) {
 691                         wpa_printf(MSG_DEBUG, "Could not disable "
 692                                    "PrivacyInvoked for interface %s",
 693                                    hapd->conf->iface);
 694                 }
 695
 696                 if (hapd->drv_priv &&
 697                     hostapd_set_generic_elem(hapd, (u8 *) "", 0)) {
 698                         wpa_printf(MSG_DEBUG, "Could not remove generic "
 699                                    "information element from interface %s",
 700                                    hapd->conf->iface);
 701                 }
 702         }
 703         ieee802_1x_deinit(hapd);
 704
 705 #ifdef CONFIG_IEEE80211R
 706         l2_packet_deinit(hapd->l2);
 707         hapd->l2 = NULL;
 708 #endif /* CONFIG_IEEE80211R */
 709 }