1 /* 2 * hostapd / WPA authenticator glue code 3 * Copyright (c) 2002-2012, Jouni Malinen <j (at) 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 "eapol_auth/eapol_auth_sm.h" 16 #include "eapol_auth/eapol_auth_sm_i.h" 17 #include "eap_server/eap.h" 18 #include "l2_packet/l2_packet.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 hostapd_config *iconf, 32 struct wpa_auth_config *wconf) 33 { 34 os_memset(wconf, 0, sizeof(*wconf)); 35 wconf->wpa = conf->wpa; 36 wconf->wpa_key_mgmt = conf->wpa_key_mgmt; 37 wconf->wpa_pairwise = conf->wpa_pairwise; 38 wconf->wpa_group = conf->wpa_group; 39 wconf->wpa_group_rekey = conf->wpa_group_rekey; 40 wconf->wpa_strict_rekey = conf->wpa_strict_rekey; 41 wconf->wpa_gmk_rekey = conf->wpa_gmk_rekey; 42 wconf->wpa_ptk_rekey = conf->wpa_ptk_rekey; 43 wconf->rsn_pairwise = conf->rsn_pairwise; 44 wconf->rsn_preauth = conf->rsn_preauth; 45 wconf->eapol_version = conf->eapol_version; 46 wconf->peerkey = conf->peerkey; 47 wconf->wmm_enabled = conf->wmm_enabled; 48 wconf->wmm_uapsd = conf->wmm_uapsd; 49 wconf->disable_pmksa_caching = conf->disable_pmksa_caching; 50 wconf->okc = conf->okc; 51 #ifdef CONFIG_IEEE80211W 52 wconf->ieee80211w = conf->ieee80211w; 53 wconf->group_mgmt_cipher = conf->group_mgmt_cipher; 54 #endif /* CONFIG_IEEE80211W */ 55 #ifdef CONFIG_IEEE80211R 56 wconf->ssid_len = conf->ssid.ssid_len; 57 if (wconf->ssid_len > SSID_MAX_LEN) 58 wconf->ssid_len = SSID_MAX_LEN; 59 os_memcpy(wconf->ssid, conf->ssid.ssid, wconf->ssid_len); 60 os_memcpy(wconf->mobility_domain, conf->mobility_domain, 61 MOBILITY_DOMAIN_ID_LEN); 62 if (conf->nas_identifier && 63 os_strlen(conf->nas_identifier) <= FT_R0KH_ID_MAX_LEN) { 64 wconf->r0_key_holder_len = os_strlen(conf->nas_identifier); 65 os_memcpy(wconf->r0_key_holder, conf->nas_identifier, 66 wconf->r0_key_holder_len); 67 } 68 os_memcpy(wconf->r1_key_holder, conf->r1_key_holder, FT_R1KH_ID_LEN); 69 wconf->r0_key_lifetime = conf->r0_key_lifetime; 70 wconf->reassociation_deadline = conf->reassociation_deadline; 71 wconf->r0kh_list = conf->r0kh_list; 72 wconf->r1kh_list = conf->r1kh_list; 73 wconf->pmk_r1_push = conf->pmk_r1_push; 74 wconf->ft_over_ds = conf->ft_over_ds; 75 #endif /* CONFIG_IEEE80211R */ 76 #ifdef CONFIG_HS20 77 wconf->disable_gtk = conf->disable_dgaf; 78 if (conf->osen) { 79 wconf->disable_gtk = 1; 80 wconf->wpa = WPA_PROTO_OSEN; 81 wconf->wpa_key_mgmt = WPA_KEY_MGMT_OSEN; 82 wconf->wpa_pairwise = 0; 83 wconf->wpa_group = WPA_CIPHER_CCMP; 84 wconf->rsn_pairwise = WPA_CIPHER_CCMP; 85 wconf->rsn_preauth = 0; 86 wconf->disable_pmksa_caching = 1; 87 #ifdef CONFIG_IEEE80211W 88 wconf->ieee80211w = 1; 89 #endif /* CONFIG_IEEE80211W */ 90 } 91 #endif /* CONFIG_HS20 */ 92 #ifdef CONFIG_TESTING_OPTIONS 93 wconf->corrupt_gtk_rekey_mic_probability = 94 iconf->corrupt_gtk_rekey_mic_probability; 95 #endif /* CONFIG_TESTING_OPTIONS */ 96 #ifdef CONFIG_P2P 97 os_memcpy(wconf->ip_addr_go, conf->ip_addr_go, 4); 98 os_memcpy(wconf->ip_addr_mask, conf->ip_addr_mask, 4); 99 os_memcpy(wconf->ip_addr_start, conf->ip_addr_start, 4); 100 os_memcpy(wconf->ip_addr_end, conf->ip_addr_end, 4); 101 #endif /* CONFIG_P2P */ 102 } 103 104 105 static void hostapd_wpa_auth_logger(void *ctx, const u8 *addr, 106 logger_level level, const char *txt) 107 { 108 #ifndef CONFIG_NO_HOSTAPD_LOGGER 109 struct hostapd_data *hapd = ctx; 110 int hlevel; 111 112 switch (level) { 113 case LOGGER_WARNING: 114 hlevel = HOSTAPD_LEVEL_WARNING; 115 break; 116 case LOGGER_INFO: 117 hlevel = HOSTAPD_LEVEL_INFO; 118 break; 119 case LOGGER_DEBUG: 120 default: 121 hlevel = HOSTAPD_LEVEL_DEBUG; 122 break; 123 } 124 125 hostapd_logger(hapd, addr, HOSTAPD_MODULE_WPA, hlevel, "%s", txt); 126 #endif /* CONFIG_NO_HOSTAPD_LOGGER */ 127 } 128 129 130 static void hostapd_wpa_auth_disconnect(void *ctx, const u8 *addr, 131 u16 reason) 132 { 133 struct hostapd_data *hapd = ctx; 134 wpa_printf(MSG_DEBUG, "%s: WPA authenticator requests disconnect: " 135 "STA " MACSTR " reason %d", 136 __func__, MAC2STR(addr), reason); 137 ap_sta_disconnect(hapd, NULL, addr, reason); 138 } 139 140 141 static int hostapd_wpa_auth_mic_failure_report(void *ctx, const u8 *addr) 142 { 143 struct hostapd_data *hapd = ctx; 144 return michael_mic_failure(hapd, addr, 0); 145 } 146 147 148 static void hostapd_wpa_auth_psk_failure_report(void *ctx, const u8 *addr) 149 { 150 struct hostapd_data *hapd = ctx; 151 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_POSSIBLE_PSK_MISMATCH MACSTR, 152 MAC2STR(addr)); 153 } 154 155 156 static void hostapd_wpa_auth_set_eapol(void *ctx, const u8 *addr, 157 wpa_eapol_variable var, int value) 158 { 159 struct hostapd_data *hapd = ctx; 160 struct sta_info *sta = ap_get_sta(hapd, addr); 161 if (sta == NULL) 162 return; 163 switch (var) { 164 case WPA_EAPOL_portEnabled: 165 ieee802_1x_notify_port_enabled(sta->eapol_sm, value); 166 break; 167 case WPA_EAPOL_portValid: 168 ieee802_1x_notify_port_valid(sta->eapol_sm, value); 169 break; 170 case WPA_EAPOL_authorized: 171 ieee802_1x_set_sta_authorized(hapd, sta, value); 172 break; 173 case WPA_EAPOL_portControl_Auto: 174 if (sta->eapol_sm) 175 sta->eapol_sm->portControl = Auto; 176 break; 177 case WPA_EAPOL_keyRun: 178 if (sta->eapol_sm) 179 sta->eapol_sm->keyRun = value ? TRUE : FALSE; 180 break; 181 case WPA_EAPOL_keyAvailable: 182 if (sta->eapol_sm) 183 sta->eapol_sm->eap_if->eapKeyAvailable = 184 value ? TRUE : FALSE; 185 break; 186 case WPA_EAPOL_keyDone: 187 if (sta->eapol_sm) 188 sta->eapol_sm->keyDone = value ? TRUE : FALSE; 189 break; 190 case WPA_EAPOL_inc_EapolFramesTx: 191 if (sta->eapol_sm) 192 sta->eapol_sm->dot1xAuthEapolFramesTx++; 193 break; 194 } 195 } 196 197 198 static int hostapd_wpa_auth_get_eapol(void *ctx, const u8 *addr, 199 wpa_eapol_variable var) 200 { 201 struct hostapd_data *hapd = ctx; 202 struct sta_info *sta = ap_get_sta(hapd, addr); 203 if (sta == NULL || sta->eapol_sm == NULL) 204 return -1; 205 switch (var) { 206 case WPA_EAPOL_keyRun: 207 return sta->eapol_sm->keyRun; 208 case WPA_EAPOL_keyAvailable: 209 return sta->eapol_sm->eap_if->eapKeyAvailable; 210 default: 211 return -1; 212 } 213 } 214 215 216 static const u8 * hostapd_wpa_auth_get_psk(void *ctx, const u8 *addr, 217 const u8 *p2p_dev_addr, 218 const u8 *prev_psk) 219 { 220 struct hostapd_data *hapd = ctx; 221 struct sta_info *sta = ap_get_sta(hapd, addr); 222 const u8 *psk; 223 224 #ifdef CONFIG_SAE 225 if (sta && sta->auth_alg == WLAN_AUTH_SAE) { 226 if (!sta->sae || prev_psk) 227 return NULL; 228 return sta->sae->pmk; 229 } 230 #endif /* CONFIG_SAE */ 231 232 psk = hostapd_get_psk(hapd->conf, addr, p2p_dev_addr, prev_psk); 233 /* 234 * This is about to iterate over all psks, prev_psk gives the last 235 * returned psk which should not be returned again. 236 * logic list (all hostapd_get_psk; all sta->psk) 237 */ 238 if (sta && sta->psk && !psk) { 239 struct hostapd_sta_wpa_psk_short *pos; 240 psk = sta->psk->psk; 241 for (pos = sta->psk; pos; pos = pos->next) { 242 if (pos->psk == prev_psk) { 243 psk = pos->next ? pos->next->psk : NULL; 244 break; 245 } 246 } 247 } 248 return psk; 249 } 250 251 252 static int hostapd_wpa_auth_get_msk(void *ctx, const u8 *addr, u8 *msk, 253 size_t *len) 254 { 255 struct hostapd_data *hapd = ctx; 256 const u8 *key; 257 size_t keylen; 258 struct sta_info *sta; 259 260 sta = ap_get_sta(hapd, addr); 261 if (sta == NULL) { 262 wpa_printf(MSG_DEBUG, "AUTH_GET_MSK: Cannot find STA"); 263 return -1; 264 } 265 266 key = ieee802_1x_get_key(sta->eapol_sm, &keylen); 267 if (key == NULL) { 268 wpa_printf(MSG_DEBUG, "AUTH_GET_MSK: Key is null, eapol_sm: %p", 269 sta->eapol_sm); 270 return -1; 271 } 272 273 if (keylen > *len) 274 keylen = *len; 275 os_memcpy(msk, key, keylen); 276 *len = keylen; 277 278 return 0; 279 } 280 281 282 static int hostapd_wpa_auth_set_key(void *ctx, int vlan_id, enum wpa_alg alg, 283 const u8 *addr, int idx, u8 *key, 284 size_t key_len) 285 { 286 struct hostapd_data *hapd = ctx; 287 const char *ifname = hapd->conf->iface; 288 289 if (vlan_id > 0) { 290 ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id); 291 if (ifname == NULL) 292 return -1; 293 } 294 295 return hostapd_drv_set_key(ifname, hapd, alg, addr, idx, 1, NULL, 0, 296 key, key_len); 297 } 298 299 300 static int hostapd_wpa_auth_get_seqnum(void *ctx, const u8 *addr, int idx, 301 u8 *seq) 302 { 303 struct hostapd_data *hapd = ctx; 304 return hostapd_get_seqnum(hapd->conf->iface, hapd, addr, idx, seq); 305 } 306 307 308 static int hostapd_wpa_auth_send_eapol(void *ctx, const u8 *addr, 309 const u8 *data, size_t data_len, 310 int encrypt) 311 { 312 struct hostapd_data *hapd = ctx; 313 struct sta_info *sta; 314 u32 flags = 0; 315 316 #ifdef CONFIG_TESTING_OPTIONS 317 if (hapd->ext_eapol_frame_io) { 318 size_t hex_len = 2 * data_len + 1; 319 char *hex = os_malloc(hex_len); 320 321 if (hex == NULL) 322 return -1; 323 wpa_snprintf_hex(hex, hex_len, data, data_len); 324 wpa_msg(hapd->msg_ctx, MSG_INFO, "EAPOL-TX " MACSTR " %s", 325 MAC2STR(addr), hex); 326 os_free(hex); 327 return 0; 328 } 329 #endif /* CONFIG_TESTING_OPTIONS */ 330 331 sta = ap_get_sta(hapd, addr); 332 if (sta) 333 flags = hostapd_sta_flags_to_drv(sta->flags); 334 335 return hostapd_drv_hapd_send_eapol(hapd, addr, data, data_len, 336 encrypt, flags); 337 } 338 339 340 static int hostapd_wpa_auth_for_each_sta( 341 void *ctx, int (*cb)(struct wpa_state_machine *sm, void *ctx), 342 void *cb_ctx) 343 { 344 struct hostapd_data *hapd = ctx; 345 struct sta_info *sta; 346 347 for (sta = hapd->sta_list; sta; sta = sta->next) { 348 if (sta->wpa_sm && cb(sta->wpa_sm, cb_ctx)) 349 return 1; 350 } 351 return 0; 352 } 353 354 355 struct wpa_auth_iface_iter_data { 356 int (*cb)(struct wpa_authenticator *sm, void *ctx); 357 void *cb_ctx; 358 }; 359 360 static int wpa_auth_iface_iter(struct hostapd_iface *iface, void *ctx) 361 { 362 struct wpa_auth_iface_iter_data *data = ctx; 363 size_t i; 364 for (i = 0; i < iface->num_bss; i++) { 365 if (iface->bss[i]->wpa_auth && 366 data->cb(iface->bss[i]->wpa_auth, data->cb_ctx)) 367 return 1; 368 } 369 return 0; 370 } 371 372 373 static int hostapd_wpa_auth_for_each_auth( 374 void *ctx, int (*cb)(struct wpa_authenticator *sm, void *ctx), 375 void *cb_ctx) 376 { 377 struct hostapd_data *hapd = ctx; 378 struct wpa_auth_iface_iter_data data; 379 if (hapd->iface->interfaces == NULL || 380 hapd->iface->interfaces->for_each_interface == NULL) 381 return -1; 382 data.cb = cb; 383 data.cb_ctx = cb_ctx; 384 return hapd->iface->interfaces->for_each_interface( 385 hapd->iface->interfaces, wpa_auth_iface_iter, &data); 386 } 387 388 389 #ifdef CONFIG_IEEE80211R 390 391 struct wpa_auth_ft_iface_iter_data { 392 struct hostapd_data *src_hapd; 393 const u8 *dst; 394 const u8 *data; 395 size_t data_len; 396 }; 397 398 399 static int hostapd_wpa_auth_ft_iter(struct hostapd_iface *iface, void *ctx) 400 { 401 struct wpa_auth_ft_iface_iter_data *idata = ctx; 402 struct hostapd_data *hapd; 403 size_t j; 404 405 for (j = 0; j < iface->num_bss; j++) { 406 hapd = iface->bss[j]; 407 if (hapd == idata->src_hapd) 408 continue; 409 if (os_memcmp(hapd->own_addr, idata->dst, ETH_ALEN) == 0) { 410 wpa_printf(MSG_DEBUG, "FT: Send RRB data directly to " 411 "locally managed BSS " MACSTR "@%s -> " 412 MACSTR "@%s", 413 MAC2STR(idata->src_hapd->own_addr), 414 idata->src_hapd->conf->iface, 415 MAC2STR(hapd->own_addr), hapd->conf->iface); 416 wpa_ft_rrb_rx(hapd->wpa_auth, 417 idata->src_hapd->own_addr, 418 idata->data, idata->data_len); 419 return 1; 420 } 421 } 422 423 return 0; 424 } 425 426 #endif /* CONFIG_IEEE80211R */ 427 428 429 static int hostapd_wpa_auth_send_ether(void *ctx, const u8 *dst, u16 proto, 430 const u8 *data, size_t data_len) 431 { 432 struct hostapd_data *hapd = ctx; 433 struct l2_ethhdr *buf; 434 int ret; 435 436 #ifdef CONFIG_TESTING_OPTIONS 437 if (hapd->ext_eapol_frame_io && proto == ETH_P_EAPOL) { 438 size_t hex_len = 2 * data_len + 1; 439 char *hex = os_malloc(hex_len); 440 441 if (hex == NULL) 442 return -1; 443 wpa_snprintf_hex(hex, hex_len, data, data_len); 444 wpa_msg(hapd->msg_ctx, MSG_INFO, "EAPOL-TX " MACSTR " %s", 445 MAC2STR(dst), hex); 446 os_free(hex); 447 return 0; 448 } 449 #endif /* CONFIG_TESTING_OPTIONS */ 450 451 #ifdef CONFIG_IEEE80211R 452 if (proto == ETH_P_RRB && hapd->iface->interfaces && 453 hapd->iface->interfaces->for_each_interface) { 454 int res; 455 struct wpa_auth_ft_iface_iter_data idata; 456 idata.src_hapd = hapd; 457 idata.dst = dst; 458 idata.data = data; 459 idata.data_len = data_len; 460 res = hapd->iface->interfaces->for_each_interface( 461 hapd->iface->interfaces, hostapd_wpa_auth_ft_iter, 462 &idata); 463 if (res == 1) 464 return data_len; 465 } 466 #endif /* CONFIG_IEEE80211R */ 467 468 if (hapd->driver && hapd->driver->send_ether) 469 return hapd->driver->send_ether(hapd->drv_priv, dst, 470 hapd->own_addr, proto, 471 data, data_len); 472 if (hapd->l2 == NULL) 473 return -1; 474 475 buf = os_malloc(sizeof(*buf) + data_len); 476 if (buf == NULL) 477 return -1; 478 os_memcpy(buf->h_dest, dst, ETH_ALEN); 479 os_memcpy(buf->h_source, hapd->own_addr, ETH_ALEN); 480 buf->h_proto = host_to_be16(proto); 481 os_memcpy(buf + 1, data, data_len); 482 ret = l2_packet_send(hapd->l2, dst, proto, (u8 *) buf, 483 sizeof(*buf) + data_len); 484 os_free(buf); 485 return ret; 486 } 487 488 489 #ifdef CONFIG_IEEE80211R 490 491 static int hostapd_wpa_auth_send_ft_action(void *ctx, const u8 *dst, 492 const u8 *data, size_t data_len) 493 { 494 struct hostapd_data *hapd = ctx; 495 int res; 496 struct ieee80211_mgmt *m; 497 size_t mlen; 498 struct sta_info *sta; 499 500 sta = ap_get_sta(hapd, dst); 501 if (sta == NULL || sta->wpa_sm == NULL) 502 return -1; 503 504 m = os_zalloc(sizeof(*m) + data_len); 505 if (m == NULL) 506 return -1; 507 mlen = ((u8 *) &m->u - (u8 *) m) + data_len; 508 m->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 509 WLAN_FC_STYPE_ACTION); 510 os_memcpy(m->da, dst, ETH_ALEN); 511 os_memcpy(m->sa, hapd->own_addr, ETH_ALEN); 512 os_memcpy(m->bssid, hapd->own_addr, ETH_ALEN); 513 os_memcpy(&m->u, data, data_len); 514 515 res = hostapd_drv_send_mlme(hapd, (u8 *) m, mlen, 0); 516 os_free(m); 517 return res; 518 } 519 520 521 static struct wpa_state_machine * 522 hostapd_wpa_auth_add_sta(void *ctx, const u8 *sta_addr) 523 { 524 struct hostapd_data *hapd = ctx; 525 struct sta_info *sta; 526 527 if (hostapd_add_sta_node(hapd, sta_addr, WLAN_AUTH_FT) < 0) 528 return NULL; 529 530 sta = ap_sta_add(hapd, sta_addr); 531 if (sta == NULL) 532 return NULL; 533 if (sta->wpa_sm) { 534 sta->auth_alg = WLAN_AUTH_FT; 535 return sta->wpa_sm; 536 } 537 538 sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr, NULL); 539 if (sta->wpa_sm == NULL) { 540 ap_free_sta(hapd, sta); 541 return NULL; 542 } 543 sta->auth_alg = WLAN_AUTH_FT; 544 545 return sta->wpa_sm; 546 } 547 548 549 static void hostapd_rrb_receive(void *ctx, const u8 *src_addr, const u8 *buf, 550 size_t len) 551 { 552 struct hostapd_data *hapd = ctx; 553 struct l2_ethhdr *ethhdr; 554 if (len < sizeof(*ethhdr)) 555 return; 556 ethhdr = (struct l2_ethhdr *) buf; 557 wpa_printf(MSG_DEBUG, "FT: RRB received packet " MACSTR " -> " 558 MACSTR, MAC2STR(ethhdr->h_source), MAC2STR(ethhdr->h_dest)); 559 wpa_ft_rrb_rx(hapd->wpa_auth, ethhdr->h_source, buf + sizeof(*ethhdr), 560 len - sizeof(*ethhdr)); 561 } 562 563 564 static int hostapd_wpa_auth_add_tspec(void *ctx, const u8 *sta_addr, 565 u8 *tspec_ie, size_t tspec_ielen) 566 { 567 struct hostapd_data *hapd = ctx; 568 return hostapd_add_tspec(hapd, sta_addr, tspec_ie, tspec_ielen); 569 } 570 571 #endif /* CONFIG_IEEE80211R */ 572 573 574 int hostapd_setup_wpa(struct hostapd_data *hapd) 575 { 576 struct wpa_auth_config _conf; 577 struct wpa_auth_callbacks cb; 578 const u8 *wpa_ie; 579 size_t wpa_ie_len; 580 581 hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &_conf); 582 if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_EAPOL_TX_STATUS) 583 _conf.tx_status = 1; 584 if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_MLME) 585 _conf.ap_mlme = 1; 586 os_memset(&cb, 0, sizeof(cb)); 587 cb.ctx = hapd; 588 cb.logger = hostapd_wpa_auth_logger; 589 cb.disconnect = hostapd_wpa_auth_disconnect; 590 cb.mic_failure_report = hostapd_wpa_auth_mic_failure_report; 591 cb.psk_failure_report = hostapd_wpa_auth_psk_failure_report; 592 cb.set_eapol = hostapd_wpa_auth_set_eapol; 593 cb.get_eapol = hostapd_wpa_auth_get_eapol; 594 cb.get_psk = hostapd_wpa_auth_get_psk; 595 cb.get_msk = hostapd_wpa_auth_get_msk; 596 cb.set_key = hostapd_wpa_auth_set_key; 597 cb.get_seqnum = hostapd_wpa_auth_get_seqnum; 598 cb.send_eapol = hostapd_wpa_auth_send_eapol; 599 cb.for_each_sta = hostapd_wpa_auth_for_each_sta; 600 cb.for_each_auth = hostapd_wpa_auth_for_each_auth; 601 cb.send_ether = hostapd_wpa_auth_send_ether; 602 #ifdef CONFIG_IEEE80211R 603 cb.send_ft_action = hostapd_wpa_auth_send_ft_action; 604 cb.add_sta = hostapd_wpa_auth_add_sta; 605 cb.add_tspec = hostapd_wpa_auth_add_tspec; 606 #endif /* CONFIG_IEEE80211R */ 607 hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb); 608 if (hapd->wpa_auth == NULL) { 609 wpa_printf(MSG_ERROR, "WPA initialization failed."); 610 return -1; 611 } 612 613 if (hostapd_set_privacy(hapd, 1)) { 614 wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked " 615 "for interface %s", hapd->conf->iface); 616 return -1; 617 } 618 619 wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len); 620 if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len)) { 621 wpa_printf(MSG_ERROR, "Failed to configure WPA IE for " 622 "the kernel driver."); 623 return -1; 624 } 625 626 if (rsn_preauth_iface_init(hapd)) { 627 wpa_printf(MSG_ERROR, "Initialization of RSN " 628 "pre-authentication failed."); 629 return -1; 630 } 631 632 #ifdef CONFIG_IEEE80211R 633 if (!hostapd_drv_none(hapd)) { 634 hapd->l2 = l2_packet_init(hapd->conf->bridge[0] ? 635 hapd->conf->bridge : 636 hapd->conf->iface, NULL, ETH_P_RRB, 637 hostapd_rrb_receive, hapd, 1); 638 if (hapd->l2 == NULL && 639 (hapd->driver == NULL || 640 hapd->driver->send_ether == NULL)) { 641 wpa_printf(MSG_ERROR, "Failed to open l2_packet " 642 "interface"); 643 return -1; 644 } 645 } 646 #endif /* CONFIG_IEEE80211R */ 647 648 return 0; 649 650 } 651 652 653 void hostapd_reconfig_wpa(struct hostapd_data *hapd) 654 { 655 struct wpa_auth_config wpa_auth_conf; 656 hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &wpa_auth_conf); 657 wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf); 658 } 659 660 661 void hostapd_deinit_wpa(struct hostapd_data *hapd) 662 { 663 ieee80211_tkip_countermeasures_deinit(hapd); 664 rsn_preauth_iface_deinit(hapd); 665 if (hapd->wpa_auth) { 666 wpa_deinit(hapd->wpa_auth); 667 hapd->wpa_auth = NULL; 668 669 if (hostapd_set_privacy(hapd, 0)) { 670 wpa_printf(MSG_DEBUG, "Could not disable " 671 "PrivacyInvoked for interface %s", 672 hapd->conf->iface); 673 } 674 675 if (hostapd_set_generic_elem(hapd, (u8 *) "", 0)) { 676 wpa_printf(MSG_DEBUG, "Could not remove generic " 677 "information element from interface %s", 678 hapd->conf->iface); 679 } 680 } 681 ieee802_1x_deinit(hapd); 682 683 #ifdef CONFIG_IEEE80211R 684 l2_packet_deinit(hapd->l2); 685 hapd->l2 = NULL; 686 #endif /* CONFIG_IEEE80211R */ 687 } 688
