wpa_auth_glue.c revision 289549
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 "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 30static 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 if (conf->own_ie_override && 96 wpabuf_len(conf->own_ie_override) <= MAX_OWN_IE_OVERRIDE) { 97 wconf->own_ie_override_len = wpabuf_len(conf->own_ie_override); 98 os_memcpy(wconf->own_ie_override, 99 wpabuf_head(conf->own_ie_override), 100 wconf->own_ie_override_len); 101 } 102#endif /* CONFIG_TESTING_OPTIONS */ 103#ifdef CONFIG_P2P 104 os_memcpy(wconf->ip_addr_go, conf->ip_addr_go, 4); 105 os_memcpy(wconf->ip_addr_mask, conf->ip_addr_mask, 4); 106 os_memcpy(wconf->ip_addr_start, conf->ip_addr_start, 4); 107 os_memcpy(wconf->ip_addr_end, conf->ip_addr_end, 4); 108#endif /* CONFIG_P2P */ 109} 110 111 112static void hostapd_wpa_auth_logger(void *ctx, const u8 *addr, 113 logger_level level, const char *txt) 114{ 115#ifndef CONFIG_NO_HOSTAPD_LOGGER 116 struct hostapd_data *hapd = ctx; 117 int hlevel; 118 119 switch (level) { 120 case LOGGER_WARNING: 121 hlevel = HOSTAPD_LEVEL_WARNING; 122 break; 123 case LOGGER_INFO: 124 hlevel = HOSTAPD_LEVEL_INFO; 125 break; 126 case LOGGER_DEBUG: 127 default: 128 hlevel = HOSTAPD_LEVEL_DEBUG; 129 break; 130 } 131 132 hostapd_logger(hapd, addr, HOSTAPD_MODULE_WPA, hlevel, "%s", txt); 133#endif /* CONFIG_NO_HOSTAPD_LOGGER */ 134} 135 136 137static void hostapd_wpa_auth_disconnect(void *ctx, const u8 *addr, 138 u16 reason) 139{ 140 struct hostapd_data *hapd = ctx; 141 wpa_printf(MSG_DEBUG, "%s: WPA authenticator requests disconnect: " 142 "STA " MACSTR " reason %d", 143 __func__, MAC2STR(addr), reason); 144 ap_sta_disconnect(hapd, NULL, addr, reason); 145} 146 147 148static int hostapd_wpa_auth_mic_failure_report(void *ctx, const u8 *addr) 149{ 150 struct hostapd_data *hapd = ctx; 151 return michael_mic_failure(hapd, addr, 0); 152} 153 154 155static void hostapd_wpa_auth_psk_failure_report(void *ctx, const u8 *addr) 156{ 157 struct hostapd_data *hapd = ctx; 158 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_POSSIBLE_PSK_MISMATCH MACSTR, 159 MAC2STR(addr)); 160} 161 162 163static void hostapd_wpa_auth_set_eapol(void *ctx, const u8 *addr, 164 wpa_eapol_variable var, int value) 165{ 166 struct hostapd_data *hapd = ctx; 167 struct sta_info *sta = ap_get_sta(hapd, addr); 168 if (sta == NULL) 169 return; 170 switch (var) { 171 case WPA_EAPOL_portEnabled: 172 ieee802_1x_notify_port_enabled(sta->eapol_sm, value); 173 break; 174 case WPA_EAPOL_portValid: 175 ieee802_1x_notify_port_valid(sta->eapol_sm, value); 176 break; 177 case WPA_EAPOL_authorized: 178 ieee802_1x_set_sta_authorized(hapd, sta, value); 179 break; 180 case WPA_EAPOL_portControl_Auto: 181 if (sta->eapol_sm) 182 sta->eapol_sm->portControl = Auto; 183 break; 184 case WPA_EAPOL_keyRun: 185 if (sta->eapol_sm) 186 sta->eapol_sm->keyRun = value ? TRUE : FALSE; 187 break; 188 case WPA_EAPOL_keyAvailable: 189 if (sta->eapol_sm) 190 sta->eapol_sm->eap_if->eapKeyAvailable = 191 value ? TRUE : FALSE; 192 break; 193 case WPA_EAPOL_keyDone: 194 if (sta->eapol_sm) 195 sta->eapol_sm->keyDone = value ? TRUE : FALSE; 196 break; 197 case WPA_EAPOL_inc_EapolFramesTx: 198 if (sta->eapol_sm) 199 sta->eapol_sm->dot1xAuthEapolFramesTx++; 200 break; 201 } 202} 203 204 205static int hostapd_wpa_auth_get_eapol(void *ctx, const u8 *addr, 206 wpa_eapol_variable var) 207{ 208 struct hostapd_data *hapd = ctx; 209 struct sta_info *sta = ap_get_sta(hapd, addr); 210 if (sta == NULL || sta->eapol_sm == NULL) 211 return -1; 212 switch (var) { 213 case WPA_EAPOL_keyRun: 214 return sta->eapol_sm->keyRun; 215 case WPA_EAPOL_keyAvailable: 216 return sta->eapol_sm->eap_if->eapKeyAvailable; 217 default: 218 return -1; 219 } 220} 221 222 223static const u8 * hostapd_wpa_auth_get_psk(void *ctx, const u8 *addr, 224 const u8 *p2p_dev_addr, 225 const u8 *prev_psk) 226{ 227 struct hostapd_data *hapd = ctx; 228 struct sta_info *sta = ap_get_sta(hapd, addr); 229 const u8 *psk; 230 231#ifdef CONFIG_SAE 232 if (sta && sta->auth_alg == WLAN_AUTH_SAE) { 233 if (!sta->sae || prev_psk) 234 return NULL; 235 return sta->sae->pmk; 236 } 237#endif /* CONFIG_SAE */ 238 239 psk = hostapd_get_psk(hapd->conf, addr, p2p_dev_addr, prev_psk); 240 /* 241 * This is about to iterate over all psks, prev_psk gives the last 242 * returned psk which should not be returned again. 243 * logic list (all hostapd_get_psk; all sta->psk) 244 */ 245 if (sta && sta->psk && !psk) { 246 struct hostapd_sta_wpa_psk_short *pos; 247 psk = sta->psk->psk; 248 for (pos = sta->psk; pos; pos = pos->next) { 249 if (pos->psk == prev_psk) { 250 psk = pos->next ? pos->next->psk : NULL; 251 break; 252 } 253 } 254 } 255 return psk; 256} 257 258 259static int hostapd_wpa_auth_get_msk(void *ctx, const u8 *addr, u8 *msk, 260 size_t *len) 261{ 262 struct hostapd_data *hapd = ctx; 263 const u8 *key; 264 size_t keylen; 265 struct sta_info *sta; 266 267 sta = ap_get_sta(hapd, addr); 268 if (sta == NULL) { 269 wpa_printf(MSG_DEBUG, "AUTH_GET_MSK: Cannot find STA"); 270 return -1; 271 } 272 273 key = ieee802_1x_get_key(sta->eapol_sm, &keylen); 274 if (key == NULL) { 275 wpa_printf(MSG_DEBUG, "AUTH_GET_MSK: Key is null, eapol_sm: %p", 276 sta->eapol_sm); 277 return -1; 278 } 279 280 if (keylen > *len) 281 keylen = *len; 282 os_memcpy(msk, key, keylen); 283 *len = keylen; 284 285 return 0; 286} 287 288 289static int hostapd_wpa_auth_set_key(void *ctx, int vlan_id, enum wpa_alg alg, 290 const u8 *addr, int idx, u8 *key, 291 size_t key_len) 292{ 293 struct hostapd_data *hapd = ctx; 294 const char *ifname = hapd->conf->iface; 295 296 if (vlan_id > 0) { 297 ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id); 298 if (ifname == NULL) 299 return -1; 300 } 301 302 return hostapd_drv_set_key(ifname, hapd, alg, addr, idx, 1, NULL, 0, 303 key, key_len); 304} 305 306 307static int hostapd_wpa_auth_get_seqnum(void *ctx, const u8 *addr, int idx, 308 u8 *seq) 309{ 310 struct hostapd_data *hapd = ctx; 311 return hostapd_get_seqnum(hapd->conf->iface, hapd, addr, idx, seq); 312} 313 314 315static int hostapd_wpa_auth_send_eapol(void *ctx, const u8 *addr, 316 const u8 *data, size_t data_len, 317 int encrypt) 318{ 319 struct hostapd_data *hapd = ctx; 320 struct sta_info *sta; 321 u32 flags = 0; 322 323#ifdef CONFIG_TESTING_OPTIONS 324 if (hapd->ext_eapol_frame_io) { 325 size_t hex_len = 2 * data_len + 1; 326 char *hex = os_malloc(hex_len); 327 328 if (hex == NULL) 329 return -1; 330 wpa_snprintf_hex(hex, hex_len, data, data_len); 331 wpa_msg(hapd->msg_ctx, MSG_INFO, "EAPOL-TX " MACSTR " %s", 332 MAC2STR(addr), hex); 333 os_free(hex); 334 return 0; 335 } 336#endif /* CONFIG_TESTING_OPTIONS */ 337 338 sta = ap_get_sta(hapd, addr); 339 if (sta) 340 flags = hostapd_sta_flags_to_drv(sta->flags); 341 342 return hostapd_drv_hapd_send_eapol(hapd, addr, data, data_len, 343 encrypt, flags); 344} 345 346 347static int hostapd_wpa_auth_for_each_sta( 348 void *ctx, int (*cb)(struct wpa_state_machine *sm, void *ctx), 349 void *cb_ctx) 350{ 351 struct hostapd_data *hapd = ctx; 352 struct sta_info *sta; 353 354 for (sta = hapd->sta_list; sta; sta = sta->next) { 355 if (sta->wpa_sm && cb(sta->wpa_sm, cb_ctx)) 356 return 1; 357 } 358 return 0; 359} 360 361 362struct wpa_auth_iface_iter_data { 363 int (*cb)(struct wpa_authenticator *sm, void *ctx); 364 void *cb_ctx; 365}; 366 367static int wpa_auth_iface_iter(struct hostapd_iface *iface, void *ctx) 368{ 369 struct wpa_auth_iface_iter_data *data = ctx; 370 size_t i; 371 for (i = 0; i < iface->num_bss; i++) { 372 if (iface->bss[i]->wpa_auth && 373 data->cb(iface->bss[i]->wpa_auth, data->cb_ctx)) 374 return 1; 375 } 376 return 0; 377} 378 379 380static int hostapd_wpa_auth_for_each_auth( 381 void *ctx, int (*cb)(struct wpa_authenticator *sm, void *ctx), 382 void *cb_ctx) 383{ 384 struct hostapd_data *hapd = ctx; 385 struct wpa_auth_iface_iter_data data; 386 if (hapd->iface->interfaces == NULL || 387 hapd->iface->interfaces->for_each_interface == NULL) 388 return -1; 389 data.cb = cb; 390 data.cb_ctx = cb_ctx; 391 return hapd->iface->interfaces->for_each_interface( 392 hapd->iface->interfaces, wpa_auth_iface_iter, &data); 393} 394 395 396#ifdef CONFIG_IEEE80211R 397 398struct wpa_auth_ft_iface_iter_data { 399 struct hostapd_data *src_hapd; 400 const u8 *dst; 401 const u8 *data; 402 size_t data_len; 403}; 404 405 406static int hostapd_wpa_auth_ft_iter(struct hostapd_iface *iface, void *ctx) 407{ 408 struct wpa_auth_ft_iface_iter_data *idata = ctx; 409 struct hostapd_data *hapd; 410 size_t j; 411 412 for (j = 0; j < iface->num_bss; j++) { 413 hapd = iface->bss[j]; 414 if (hapd == idata->src_hapd) 415 continue; 416 if (os_memcmp(hapd->own_addr, idata->dst, ETH_ALEN) == 0) { 417 wpa_printf(MSG_DEBUG, "FT: Send RRB data directly to " 418 "locally managed BSS " MACSTR "@%s -> " 419 MACSTR "@%s", 420 MAC2STR(idata->src_hapd->own_addr), 421 idata->src_hapd->conf->iface, 422 MAC2STR(hapd->own_addr), hapd->conf->iface); 423 wpa_ft_rrb_rx(hapd->wpa_auth, 424 idata->src_hapd->own_addr, 425 idata->data, idata->data_len); 426 return 1; 427 } 428 } 429 430 return 0; 431} 432 433#endif /* CONFIG_IEEE80211R */ 434 435 436static int hostapd_wpa_auth_send_ether(void *ctx, const u8 *dst, u16 proto, 437 const u8 *data, size_t data_len) 438{ 439 struct hostapd_data *hapd = ctx; 440 struct l2_ethhdr *buf; 441 int ret; 442 443#ifdef CONFIG_TESTING_OPTIONS 444 if (hapd->ext_eapol_frame_io && proto == ETH_P_EAPOL) { 445 size_t hex_len = 2 * data_len + 1; 446 char *hex = os_malloc(hex_len); 447 448 if (hex == NULL) 449 return -1; 450 wpa_snprintf_hex(hex, hex_len, data, data_len); 451 wpa_msg(hapd->msg_ctx, MSG_INFO, "EAPOL-TX " MACSTR " %s", 452 MAC2STR(dst), hex); 453 os_free(hex); 454 return 0; 455 } 456#endif /* CONFIG_TESTING_OPTIONS */ 457 458#ifdef CONFIG_IEEE80211R 459 if (proto == ETH_P_RRB && hapd->iface->interfaces && 460 hapd->iface->interfaces->for_each_interface) { 461 int res; 462 struct wpa_auth_ft_iface_iter_data idata; 463 idata.src_hapd = hapd; 464 idata.dst = dst; 465 idata.data = data; 466 idata.data_len = data_len; 467 res = hapd->iface->interfaces->for_each_interface( 468 hapd->iface->interfaces, hostapd_wpa_auth_ft_iter, 469 &idata); 470 if (res == 1) 471 return data_len; 472 } 473#endif /* CONFIG_IEEE80211R */ 474 475 if (hapd->driver && hapd->driver->send_ether) 476 return hapd->driver->send_ether(hapd->drv_priv, dst, 477 hapd->own_addr, proto, 478 data, data_len); 479 if (hapd->l2 == NULL) 480 return -1; 481 482 buf = os_malloc(sizeof(*buf) + data_len); 483 if (buf == NULL) 484 return -1; 485 os_memcpy(buf->h_dest, dst, ETH_ALEN); 486 os_memcpy(buf->h_source, hapd->own_addr, ETH_ALEN); 487 buf->h_proto = host_to_be16(proto); 488 os_memcpy(buf + 1, data, data_len); 489 ret = l2_packet_send(hapd->l2, dst, proto, (u8 *) buf, 490 sizeof(*buf) + data_len); 491 os_free(buf); 492 return ret; 493} 494 495 496#ifdef CONFIG_IEEE80211R 497 498static int hostapd_wpa_auth_send_ft_action(void *ctx, const u8 *dst, 499 const u8 *data, size_t data_len) 500{ 501 struct hostapd_data *hapd = ctx; 502 int res; 503 struct ieee80211_mgmt *m; 504 size_t mlen; 505 struct sta_info *sta; 506 507 sta = ap_get_sta(hapd, dst); 508 if (sta == NULL || sta->wpa_sm == NULL) 509 return -1; 510 511 m = os_zalloc(sizeof(*m) + data_len); 512 if (m == NULL) 513 return -1; 514 mlen = ((u8 *) &m->u - (u8 *) m) + data_len; 515 m->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 516 WLAN_FC_STYPE_ACTION); 517 os_memcpy(m->da, dst, ETH_ALEN); 518 os_memcpy(m->sa, hapd->own_addr, ETH_ALEN); 519 os_memcpy(m->bssid, hapd->own_addr, ETH_ALEN); 520 os_memcpy(&m->u, data, data_len); 521 522 res = hostapd_drv_send_mlme(hapd, (u8 *) m, mlen, 0); 523 os_free(m); 524 return res; 525} 526 527 528static struct wpa_state_machine * 529hostapd_wpa_auth_add_sta(void *ctx, const u8 *sta_addr) 530{ 531 struct hostapd_data *hapd = ctx; 532 struct sta_info *sta; 533 534 if (hostapd_add_sta_node(hapd, sta_addr, WLAN_AUTH_FT) < 0) 535 return NULL; 536 537 sta = ap_sta_add(hapd, sta_addr); 538 if (sta == NULL) 539 return NULL; 540 if (sta->wpa_sm) { 541 sta->auth_alg = WLAN_AUTH_FT; 542 return sta->wpa_sm; 543 } 544 545 sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr, NULL); 546 if (sta->wpa_sm == NULL) { 547 ap_free_sta(hapd, sta); 548 return NULL; 549 } 550 sta->auth_alg = WLAN_AUTH_FT; 551 552 return sta->wpa_sm; 553} 554 555 556static void hostapd_rrb_receive(void *ctx, const u8 *src_addr, const u8 *buf, 557 size_t len) 558{ 559 struct hostapd_data *hapd = ctx; 560 struct l2_ethhdr *ethhdr; 561 if (len < sizeof(*ethhdr)) 562 return; 563 ethhdr = (struct l2_ethhdr *) buf; 564 wpa_printf(MSG_DEBUG, "FT: RRB received packet " MACSTR " -> " 565 MACSTR, MAC2STR(ethhdr->h_source), MAC2STR(ethhdr->h_dest)); 566 wpa_ft_rrb_rx(hapd->wpa_auth, ethhdr->h_source, buf + sizeof(*ethhdr), 567 len - sizeof(*ethhdr)); 568} 569 570 571static int hostapd_wpa_auth_add_tspec(void *ctx, const u8 *sta_addr, 572 u8 *tspec_ie, size_t tspec_ielen) 573{ 574 struct hostapd_data *hapd = ctx; 575 return hostapd_add_tspec(hapd, sta_addr, tspec_ie, tspec_ielen); 576} 577 578#endif /* CONFIG_IEEE80211R */ 579 580 581int hostapd_setup_wpa(struct hostapd_data *hapd) 582{ 583 struct wpa_auth_config _conf; 584 struct wpa_auth_callbacks cb; 585 const u8 *wpa_ie; 586 size_t wpa_ie_len; 587 588 hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &_conf); 589 if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_EAPOL_TX_STATUS) 590 _conf.tx_status = 1; 591 if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_MLME) 592 _conf.ap_mlme = 1; 593 os_memset(&cb, 0, sizeof(cb)); 594 cb.ctx = hapd; 595 cb.logger = hostapd_wpa_auth_logger; 596 cb.disconnect = hostapd_wpa_auth_disconnect; 597 cb.mic_failure_report = hostapd_wpa_auth_mic_failure_report; 598 cb.psk_failure_report = hostapd_wpa_auth_psk_failure_report; 599 cb.set_eapol = hostapd_wpa_auth_set_eapol; 600 cb.get_eapol = hostapd_wpa_auth_get_eapol; 601 cb.get_psk = hostapd_wpa_auth_get_psk; 602 cb.get_msk = hostapd_wpa_auth_get_msk; 603 cb.set_key = hostapd_wpa_auth_set_key; 604 cb.get_seqnum = hostapd_wpa_auth_get_seqnum; 605 cb.send_eapol = hostapd_wpa_auth_send_eapol; 606 cb.for_each_sta = hostapd_wpa_auth_for_each_sta; 607 cb.for_each_auth = hostapd_wpa_auth_for_each_auth; 608 cb.send_ether = hostapd_wpa_auth_send_ether; 609#ifdef CONFIG_IEEE80211R 610 cb.send_ft_action = hostapd_wpa_auth_send_ft_action; 611 cb.add_sta = hostapd_wpa_auth_add_sta; 612 cb.add_tspec = hostapd_wpa_auth_add_tspec; 613#endif /* CONFIG_IEEE80211R */ 614 hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb); 615 if (hapd->wpa_auth == NULL) { 616 wpa_printf(MSG_ERROR, "WPA initialization failed."); 617 return -1; 618 } 619 620 if (hostapd_set_privacy(hapd, 1)) { 621 wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked " 622 "for interface %s", hapd->conf->iface); 623 return -1; 624 } 625 626 wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len); 627 if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len)) { 628 wpa_printf(MSG_ERROR, "Failed to configure WPA IE for " 629 "the kernel driver."); 630 return -1; 631 } 632 633 if (rsn_preauth_iface_init(hapd)) { 634 wpa_printf(MSG_ERROR, "Initialization of RSN " 635 "pre-authentication failed."); 636 return -1; 637 } 638 639#ifdef CONFIG_IEEE80211R 640 if (!hostapd_drv_none(hapd) && hapd->conf->ft_over_ds && 641 wpa_key_mgmt_ft(hapd->conf->wpa_key_mgmt)) { 642 hapd->l2 = l2_packet_init(hapd->conf->bridge[0] ? 643 hapd->conf->bridge : 644 hapd->conf->iface, NULL, ETH_P_RRB, 645 hostapd_rrb_receive, hapd, 1); 646 if (hapd->l2 == NULL && 647 (hapd->driver == NULL || 648 hapd->driver->send_ether == NULL)) { 649 wpa_printf(MSG_ERROR, "Failed to open l2_packet " 650 "interface"); 651 return -1; 652 } 653 } 654#endif /* CONFIG_IEEE80211R */ 655 656 return 0; 657 658} 659 660 661void hostapd_reconfig_wpa(struct hostapd_data *hapd) 662{ 663 struct wpa_auth_config wpa_auth_conf; 664 hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &wpa_auth_conf); 665 wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf); 666} 667 668 669void hostapd_deinit_wpa(struct hostapd_data *hapd) 670{ 671 ieee80211_tkip_countermeasures_deinit(hapd); 672 rsn_preauth_iface_deinit(hapd); 673 if (hapd->wpa_auth) { 674 wpa_deinit(hapd->wpa_auth); 675 hapd->wpa_auth = NULL; 676 677 if (hostapd_set_privacy(hapd, 0)) { 678 wpa_printf(MSG_DEBUG, "Could not disable " 679 "PrivacyInvoked for interface %s", 680 hapd->conf->iface); 681 } 682 683 if (hostapd_set_generic_elem(hapd, (u8 *) "", 0)) { 684 wpa_printf(MSG_DEBUG, "Could not remove generic " 685 "information element from interface %s", 686 hapd->conf->iface); 687 } 688 } 689 ieee802_1x_deinit(hapd); 690 691#ifdef CONFIG_IEEE80211R 692 l2_packet_deinit(hapd->l2); 693 hapd->l2 = NULL; 694#endif /* CONFIG_IEEE80211R */ 695} 696