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 "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) && hapd->conf->ft_over_ds && 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 } 710
