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->wpa_group_update_count = conf->wpa_group_update_count; 45 wconf->wpa_pairwise_update_count = conf->wpa_pairwise_update_count; 46 wconf->rsn_pairwise = conf->rsn_pairwise; 47 wconf->rsn_preauth = conf->rsn_preauth; 48 wconf->eapol_version = conf->eapol_version; 49 wconf->peerkey = conf->peerkey; 50 wconf->wmm_enabled = conf->wmm_enabled; 51 wconf->wmm_uapsd = conf->wmm_uapsd; 52 wconf->disable_pmksa_caching = conf->disable_pmksa_caching; 53 wconf->okc = conf->okc; 54 #ifdef CONFIG_IEEE80211W 55 wconf->ieee80211w = conf->ieee80211w; 56 wconf->group_mgmt_cipher = conf->group_mgmt_cipher; 57 #endif /* CONFIG_IEEE80211W */ 58 #ifdef CONFIG_IEEE80211R_AP 59 wconf->ssid_len = conf->ssid.ssid_len; 60 if (wconf->ssid_len > SSID_MAX_LEN) 61 wconf->ssid_len = SSID_MAX_LEN; 62 os_memcpy(wconf->ssid, conf->ssid.ssid, wconf->ssid_len); 63 os_memcpy(wconf->mobility_domain, conf->mobility_domain, 64 MOBILITY_DOMAIN_ID_LEN); 65 if (conf->nas_identifier && 66 os_strlen(conf->nas_identifier) <= FT_R0KH_ID_MAX_LEN) { 67 wconf->r0_key_holder_len = os_strlen(conf->nas_identifier); 68 os_memcpy(wconf->r0_key_holder, conf->nas_identifier, 69 wconf->r0_key_holder_len); 70 } 71 os_memcpy(wconf->r1_key_holder, conf->r1_key_holder, FT_R1KH_ID_LEN); 72 wconf->r0_key_lifetime = conf->r0_key_lifetime; 73 wconf->reassociation_deadline = conf->reassociation_deadline; 74 wconf->r0kh_list = conf->r0kh_list; 75 wconf->r1kh_list = conf->r1kh_list; 76 wconf->pmk_r1_push = conf->pmk_r1_push; 77 wconf->ft_over_ds = conf->ft_over_ds; 78 wconf->ft_psk_generate_local = conf->ft_psk_generate_local; 79 #endif /* CONFIG_IEEE80211R_AP */ 80 #ifdef CONFIG_HS20 81 wconf->disable_gtk = conf->disable_dgaf; 82 if (conf->osen) { 83 wconf->disable_gtk = 1; 84 wconf->wpa = WPA_PROTO_OSEN; 85 wconf->wpa_key_mgmt = WPA_KEY_MGMT_OSEN; 86 wconf->wpa_pairwise = 0; 87 wconf->wpa_group = WPA_CIPHER_CCMP; 88 wconf->rsn_pairwise = WPA_CIPHER_CCMP; 89 wconf->rsn_preauth = 0; 90 wconf->disable_pmksa_caching = 1; 91 #ifdef CONFIG_IEEE80211W 92 wconf->ieee80211w = 1; 93 #endif /* CONFIG_IEEE80211W */ 94 } 95 #endif /* CONFIG_HS20 */ 96 #ifdef CONFIG_TESTING_OPTIONS 97 wconf->corrupt_gtk_rekey_mic_probability = 98 iconf->corrupt_gtk_rekey_mic_probability; 99 if (conf->own_ie_override && 100 wpabuf_len(conf->own_ie_override) <= MAX_OWN_IE_OVERRIDE) { 101 wconf->own_ie_override_len = wpabuf_len(conf->own_ie_override); 102 os_memcpy(wconf->own_ie_override, 103 wpabuf_head(conf->own_ie_override), 104 wconf->own_ie_override_len); 105 } 106 #endif /* CONFIG_TESTING_OPTIONS */ 107 #ifdef CONFIG_P2P 108 os_memcpy(wconf->ip_addr_go, conf->ip_addr_go, 4); 109 os_memcpy(wconf->ip_addr_mask, conf->ip_addr_mask, 4); 110 os_memcpy(wconf->ip_addr_start, conf->ip_addr_start, 4); 111 os_memcpy(wconf->ip_addr_end, conf->ip_addr_end, 4); 112 #endif /* CONFIG_P2P */ 113 } 114 115 116 static void hostapd_wpa_auth_logger(void *ctx, const u8 *addr, 117 logger_level level, const char *txt) 118 { 119 #ifndef CONFIG_NO_HOSTAPD_LOGGER 120 struct hostapd_data *hapd = ctx; 121 int hlevel; 122 123 switch (level) { 124 case LOGGER_WARNING: 125 hlevel = HOSTAPD_LEVEL_WARNING; 126 break; 127 case LOGGER_INFO: 128 hlevel = HOSTAPD_LEVEL_INFO; 129 break; 130 case LOGGER_DEBUG: 131 default: 132 hlevel = HOSTAPD_LEVEL_DEBUG; 133 break; 134 } 135 136 hostapd_logger(hapd, addr, HOSTAPD_MODULE_WPA, hlevel, "%s", txt); 137 #endif /* CONFIG_NO_HOSTAPD_LOGGER */ 138 } 139 140 141 static void hostapd_wpa_auth_disconnect(void *ctx, const u8 *addr, 142 u16 reason) 143 { 144 struct hostapd_data *hapd = ctx; 145 wpa_printf(MSG_DEBUG, "%s: WPA authenticator requests disconnect: " 146 "STA " MACSTR " reason %d", 147 __func__, MAC2STR(addr), reason); 148 ap_sta_disconnect(hapd, NULL, addr, reason); 149 } 150 151 152 static int hostapd_wpa_auth_mic_failure_report(void *ctx, const u8 *addr) 153 { 154 struct hostapd_data *hapd = ctx; 155 return michael_mic_failure(hapd, addr, 0); 156 } 157 158 159 static void hostapd_wpa_auth_psk_failure_report(void *ctx, const u8 *addr) 160 { 161 struct hostapd_data *hapd = ctx; 162 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_POSSIBLE_PSK_MISMATCH MACSTR, 163 MAC2STR(addr)); 164 } 165 166 167 static void hostapd_wpa_auth_set_eapol(void *ctx, const u8 *addr, 168 wpa_eapol_variable var, int value) 169 { 170 struct hostapd_data *hapd = ctx; 171 struct sta_info *sta = ap_get_sta(hapd, addr); 172 if (sta == NULL) 173 return; 174 switch (var) { 175 case WPA_EAPOL_portEnabled: 176 ieee802_1x_notify_port_enabled(sta->eapol_sm, value); 177 break; 178 case WPA_EAPOL_portValid: 179 ieee802_1x_notify_port_valid(sta->eapol_sm, value); 180 break; 181 case WPA_EAPOL_authorized: 182 ieee802_1x_set_sta_authorized(hapd, sta, value); 183 break; 184 case WPA_EAPOL_portControl_Auto: 185 if (sta->eapol_sm) 186 sta->eapol_sm->portControl = Auto; 187 break; 188 case WPA_EAPOL_keyRun: 189 if (sta->eapol_sm) 190 sta->eapol_sm->keyRun = value ? TRUE : FALSE; 191 break; 192 case WPA_EAPOL_keyAvailable: 193 if (sta->eapol_sm) 194 sta->eapol_sm->eap_if->eapKeyAvailable = 195 value ? TRUE : FALSE; 196 break; 197 case WPA_EAPOL_keyDone: 198 if (sta->eapol_sm) 199 sta->eapol_sm->keyDone = value ? TRUE : FALSE; 200 break; 201 case WPA_EAPOL_inc_EapolFramesTx: 202 if (sta->eapol_sm) 203 sta->eapol_sm->dot1xAuthEapolFramesTx++; 204 break; 205 } 206 } 207 208 209 static int hostapd_wpa_auth_get_eapol(void *ctx, const u8 *addr, 210 wpa_eapol_variable var) 211 { 212 struct hostapd_data *hapd = ctx; 213 struct sta_info *sta = ap_get_sta(hapd, addr); 214 if (sta == NULL || sta->eapol_sm == NULL) 215 return -1; 216 switch (var) { 217 case WPA_EAPOL_keyRun: 218 return sta->eapol_sm->keyRun; 219 case WPA_EAPOL_keyAvailable: 220 return sta->eapol_sm->eap_if->eapKeyAvailable; 221 default: 222 return -1; 223 } 224 } 225 226 227 static const u8 * hostapd_wpa_auth_get_psk(void *ctx, const u8 *addr, 228 const u8 *p2p_dev_addr, 229 const u8 *prev_psk) 230 { 231 struct hostapd_data *hapd = ctx; 232 struct sta_info *sta = ap_get_sta(hapd, addr); 233 const u8 *psk; 234 235 #ifdef CONFIG_SAE 236 if (sta && sta->auth_alg == WLAN_AUTH_SAE) { 237 if (!sta->sae || prev_psk) 238 return NULL; 239 return sta->sae->pmk; 240 } 241 #endif /* CONFIG_SAE */ 242 243 psk = hostapd_get_psk(hapd->conf, addr, p2p_dev_addr, prev_psk); 244 /* 245 * This is about to iterate over all psks, prev_psk gives the last 246 * returned psk which should not be returned again. 247 * logic list (all hostapd_get_psk; all sta->psk) 248 */ 249 if (sta && sta->psk && !psk) { 250 struct hostapd_sta_wpa_psk_short *pos; 251 psk = sta->psk->psk; 252 for (pos = sta->psk; pos; pos = pos->next) { 253 if (pos->is_passphrase) { 254 pbkdf2_sha1(pos->passphrase, 255 hapd->conf->ssid.ssid, 256 hapd->conf->ssid.ssid_len, 4096, 257 pos->psk, PMK_LEN); 258 pos->is_passphrase = 0; 259 } 260 if (pos->psk == prev_psk) { 261 psk = pos->next ? pos->next->psk : NULL; 262 break; 263 } 264 } 265 } 266 return psk; 267 } 268 269 270 static int hostapd_wpa_auth_get_msk(void *ctx, const u8 *addr, u8 *msk, 271 size_t *len) 272 { 273 struct hostapd_data *hapd = ctx; 274 const u8 *key; 275 size_t keylen; 276 struct sta_info *sta; 277 278 sta = ap_get_sta(hapd, addr); 279 if (sta == NULL) { 280 wpa_printf(MSG_DEBUG, "AUTH_GET_MSK: Cannot find STA"); 281 return -1; 282 } 283 284 key = ieee802_1x_get_key(sta->eapol_sm, &keylen); 285 if (key == NULL) { 286 wpa_printf(MSG_DEBUG, "AUTH_GET_MSK: Key is null, eapol_sm: %p", 287 sta->eapol_sm); 288 return -1; 289 } 290 291 if (keylen > *len) 292 keylen = *len; 293 os_memcpy(msk, key, keylen); 294 *len = keylen; 295 296 return 0; 297 } 298 299 300 static int hostapd_wpa_auth_set_key(void *ctx, int vlan_id, enum wpa_alg alg, 301 const u8 *addr, int idx, u8 *key, 302 size_t key_len) 303 { 304 struct hostapd_data *hapd = ctx; 305 const char *ifname = hapd->conf->iface; 306 307 if (vlan_id > 0) { 308 ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id); 309 if (ifname == NULL) 310 return -1; 311 } 312 313 return hostapd_drv_set_key(ifname, hapd, alg, addr, idx, 1, NULL, 0, 314 key, key_len); 315 } 316 317 318 static int hostapd_wpa_auth_get_seqnum(void *ctx, const u8 *addr, int idx, 319 u8 *seq) 320 { 321 struct hostapd_data *hapd = ctx; 322 return hostapd_get_seqnum(hapd->conf->iface, hapd, addr, idx, seq); 323 } 324 325 326 static int hostapd_wpa_auth_send_eapol(void *ctx, const u8 *addr, 327 const u8 *data, size_t data_len, 328 int encrypt) 329 { 330 struct hostapd_data *hapd = ctx; 331 struct sta_info *sta; 332 u32 flags = 0; 333 334 #ifdef CONFIG_TESTING_OPTIONS 335 if (hapd->ext_eapol_frame_io) { 336 size_t hex_len = 2 * data_len + 1; 337 char *hex = os_malloc(hex_len); 338 339 if (hex == NULL) 340 return -1; 341 wpa_snprintf_hex(hex, hex_len, data, data_len); 342 wpa_msg(hapd->msg_ctx, MSG_INFO, "EAPOL-TX " MACSTR " %s", 343 MAC2STR(addr), hex); 344 os_free(hex); 345 return 0; 346 } 347 #endif /* CONFIG_TESTING_OPTIONS */ 348 349 sta = ap_get_sta(hapd, addr); 350 if (sta) 351 flags = hostapd_sta_flags_to_drv(sta->flags); 352 353 return hostapd_drv_hapd_send_eapol(hapd, addr, data, data_len, 354 encrypt, flags); 355 } 356 357 358 static int hostapd_wpa_auth_for_each_sta( 359 void *ctx, int (*cb)(struct wpa_state_machine *sm, void *ctx), 360 void *cb_ctx) 361 { 362 struct hostapd_data *hapd = ctx; 363 struct sta_info *sta; 364 365 for (sta = hapd->sta_list; sta; sta = sta->next) { 366 if (sta->wpa_sm && cb(sta->wpa_sm, cb_ctx)) 367 return 1; 368 } 369 return 0; 370 } 371 372 373 struct wpa_auth_iface_iter_data { 374 int (*cb)(struct wpa_authenticator *sm, void *ctx); 375 void *cb_ctx; 376 }; 377 378 static int wpa_auth_iface_iter(struct hostapd_iface *iface, void *ctx) 379 { 380 struct wpa_auth_iface_iter_data *data = ctx; 381 size_t i; 382 for (i = 0; i < iface->num_bss; i++) { 383 if (iface->bss[i]->wpa_auth && 384 data->cb(iface->bss[i]->wpa_auth, data->cb_ctx)) 385 return 1; 386 } 387 return 0; 388 } 389 390 391 static int hostapd_wpa_auth_for_each_auth( 392 void *ctx, int (*cb)(struct wpa_authenticator *sm, void *ctx), 393 void *cb_ctx) 394 { 395 struct hostapd_data *hapd = ctx; 396 struct wpa_auth_iface_iter_data data; 397 if (hapd->iface->interfaces == NULL || 398 hapd->iface->interfaces->for_each_interface == NULL) 399 return -1; 400 data.cb = cb; 401 data.cb_ctx = cb_ctx; 402 return hapd->iface->interfaces->for_each_interface( 403 hapd->iface->interfaces, wpa_auth_iface_iter, &data); 404 } 405 406 407 #ifdef CONFIG_IEEE80211R_AP 408 409 struct wpa_auth_ft_iface_iter_data { 410 struct hostapd_data *src_hapd; 411 const u8 *dst; 412 const u8 *data; 413 size_t data_len; 414 }; 415 416 417 static int hostapd_wpa_auth_ft_iter(struct hostapd_iface *iface, void *ctx) 418 { 419 struct wpa_auth_ft_iface_iter_data *idata = ctx; 420 struct hostapd_data *hapd; 421 size_t j; 422 423 for (j = 0; j < iface->num_bss; j++) { 424 hapd = iface->bss[j]; 425 if (hapd == idata->src_hapd) 426 continue; 427 if (!hapd->wpa_auth) 428 continue; 429 if (os_memcmp(hapd->own_addr, idata->dst, ETH_ALEN) == 0) { 430 wpa_printf(MSG_DEBUG, "FT: Send RRB data directly to " 431 "locally managed BSS " MACSTR "@%s -> " 432 MACSTR "@%s", 433 MAC2STR(idata->src_hapd->own_addr), 434 idata->src_hapd->conf->iface, 435 MAC2STR(hapd->own_addr), hapd->conf->iface); 436 wpa_ft_rrb_rx(hapd->wpa_auth, 437 idata->src_hapd->own_addr, 438 idata->data, idata->data_len); 439 return 1; 440 } 441 } 442 443 return 0; 444 } 445 446 #endif /* CONFIG_IEEE80211R_AP */ 447 448 449 static int hostapd_wpa_auth_send_ether(void *ctx, const u8 *dst, u16 proto, 450 const u8 *data, size_t data_len) 451 { 452 struct hostapd_data *hapd = ctx; 453 struct l2_ethhdr *buf; 454 int ret; 455 456 #ifdef CONFIG_TESTING_OPTIONS 457 if (hapd->ext_eapol_frame_io && proto == ETH_P_EAPOL) { 458 size_t hex_len = 2 * data_len + 1; 459 char *hex = os_malloc(hex_len); 460 461 if (hex == NULL) 462 return -1; 463 wpa_snprintf_hex(hex, hex_len, data, data_len); 464 wpa_msg(hapd->msg_ctx, MSG_INFO, "EAPOL-TX " MACSTR " %s", 465 MAC2STR(dst), hex); 466 os_free(hex); 467 return 0; 468 } 469 #endif /* CONFIG_TESTING_OPTIONS */ 470 471 #ifdef CONFIG_IEEE80211R_AP 472 if (proto == ETH_P_RRB && hapd->iface->interfaces && 473 hapd->iface->interfaces->for_each_interface) { 474 int res; 475 struct wpa_auth_ft_iface_iter_data idata; 476 idata.src_hapd = hapd; 477 idata.dst = dst; 478 idata.data = data; 479 idata.data_len = data_len; 480 res = hapd->iface->interfaces->for_each_interface( 481 hapd->iface->interfaces, hostapd_wpa_auth_ft_iter, 482 &idata); 483 if (res == 1) 484 return data_len; 485 } 486 #endif /* CONFIG_IEEE80211R_AP */ 487 488 if (hapd->driver && hapd->driver->send_ether) 489 return hapd->driver->send_ether(hapd->drv_priv, dst, 490 hapd->own_addr, proto, 491 data, data_len); 492 if (hapd->l2 == NULL) 493 return -1; 494 495 buf = os_malloc(sizeof(*buf) + data_len); 496 if (buf == NULL) 497 return -1; 498 os_memcpy(buf->h_dest, dst, ETH_ALEN); 499 os_memcpy(buf->h_source, hapd->own_addr, ETH_ALEN); 500 buf->h_proto = host_to_be16(proto); 501 os_memcpy(buf + 1, data, data_len); 502 ret = l2_packet_send(hapd->l2, dst, proto, (u8 *) buf, 503 sizeof(*buf) + data_len); 504 os_free(buf); 505 return ret; 506 } 507 508 509 #ifdef CONFIG_IEEE80211R_AP 510 511 static int hostapd_wpa_auth_send_ft_action(void *ctx, const u8 *dst, 512 const u8 *data, size_t data_len) 513 { 514 struct hostapd_data *hapd = ctx; 515 int res; 516 struct ieee80211_mgmt *m; 517 size_t mlen; 518 struct sta_info *sta; 519 520 sta = ap_get_sta(hapd, dst); 521 if (sta == NULL || sta->wpa_sm == NULL) 522 return -1; 523 524 m = os_zalloc(sizeof(*m) + data_len); 525 if (m == NULL) 526 return -1; 527 mlen = ((u8 *) &m->u - (u8 *) m) + data_len; 528 m->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 529 WLAN_FC_STYPE_ACTION); 530 os_memcpy(m->da, dst, ETH_ALEN); 531 os_memcpy(m->sa, hapd->own_addr, ETH_ALEN); 532 os_memcpy(m->bssid, hapd->own_addr, ETH_ALEN); 533 os_memcpy(&m->u, data, data_len); 534 535 res = hostapd_drv_send_mlme(hapd, (u8 *) m, mlen, 0); 536 os_free(m); 537 return res; 538 } 539 540 541 static struct wpa_state_machine * 542 hostapd_wpa_auth_add_sta(void *ctx, const u8 *sta_addr) 543 { 544 struct hostapd_data *hapd = ctx; 545 struct sta_info *sta; 546 547 if (hostapd_add_sta_node(hapd, sta_addr, WLAN_AUTH_FT) < 0) 548 return NULL; 549 550 sta = ap_sta_add(hapd, sta_addr); 551 if (sta == NULL) 552 return NULL; 553 if (sta->wpa_sm) { 554 sta->auth_alg = WLAN_AUTH_FT; 555 return sta->wpa_sm; 556 } 557 558 sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr, NULL); 559 if (sta->wpa_sm == NULL) { 560 ap_free_sta(hapd, sta); 561 return NULL; 562 } 563 sta->auth_alg = WLAN_AUTH_FT; 564 565 return sta->wpa_sm; 566 } 567 568 569 static void hostapd_rrb_receive(void *ctx, const u8 *src_addr, const u8 *buf, 570 size_t len) 571 { 572 struct hostapd_data *hapd = ctx; 573 struct l2_ethhdr *ethhdr; 574 if (len < sizeof(*ethhdr)) 575 return; 576 ethhdr = (struct l2_ethhdr *) buf; 577 wpa_printf(MSG_DEBUG, "FT: RRB received packet " MACSTR " -> " 578 MACSTR, MAC2STR(ethhdr->h_source), MAC2STR(ethhdr->h_dest)); 579 if (!is_multicast_ether_addr(ethhdr->h_dest) && 580 os_memcmp(hapd->own_addr, ethhdr->h_dest, ETH_ALEN) != 0) 581 return; 582 wpa_ft_rrb_rx(hapd->wpa_auth, ethhdr->h_source, buf + sizeof(*ethhdr), 583 len - sizeof(*ethhdr)); 584 } 585 586 587 static int hostapd_wpa_auth_add_tspec(void *ctx, const u8 *sta_addr, 588 u8 *tspec_ie, size_t tspec_ielen) 589 { 590 struct hostapd_data *hapd = ctx; 591 return hostapd_add_tspec(hapd, sta_addr, tspec_ie, tspec_ielen); 592 } 593 594 #endif /* CONFIG_IEEE80211R_AP */ 595 596 597 int hostapd_setup_wpa(struct hostapd_data *hapd) 598 { 599 struct wpa_auth_config _conf; 600 static const struct wpa_auth_callbacks cb = { 601 .logger = hostapd_wpa_auth_logger, 602 .disconnect = hostapd_wpa_auth_disconnect, 603 .mic_failure_report = hostapd_wpa_auth_mic_failure_report, 604 .psk_failure_report = hostapd_wpa_auth_psk_failure_report, 605 .set_eapol = hostapd_wpa_auth_set_eapol, 606 .get_eapol = hostapd_wpa_auth_get_eapol, 607 .get_psk = hostapd_wpa_auth_get_psk, 608 .get_msk = hostapd_wpa_auth_get_msk, 609 .set_key = hostapd_wpa_auth_set_key, 610 .get_seqnum = hostapd_wpa_auth_get_seqnum, 611 .send_eapol = hostapd_wpa_auth_send_eapol, 612 .for_each_sta = hostapd_wpa_auth_for_each_sta, 613 .for_each_auth = hostapd_wpa_auth_for_each_auth, 614 .send_ether = hostapd_wpa_auth_send_ether, 615 #ifdef CONFIG_IEEE80211R_AP 616 .send_ft_action = hostapd_wpa_auth_send_ft_action, 617 .add_sta = hostapd_wpa_auth_add_sta, 618 .add_tspec = hostapd_wpa_auth_add_tspec, 619 #endif /* CONFIG_IEEE80211R_AP */ 620 }; 621 const u8 *wpa_ie; 622 size_t wpa_ie_len; 623 624 hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &_conf); 625 if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_EAPOL_TX_STATUS) 626 _conf.tx_status = 1; 627 if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_MLME) 628 _conf.ap_mlme = 1; 629 hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb, hapd); 630 if (hapd->wpa_auth == NULL) { 631 wpa_printf(MSG_ERROR, "WPA initialization failed."); 632 return -1; 633 } 634 635 if (hostapd_set_privacy(hapd, 1)) { 636 wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked " 637 "for interface %s", hapd->conf->iface); 638 return -1; 639 } 640 641 wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len); 642 if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len)) { 643 wpa_printf(MSG_ERROR, "Failed to configure WPA IE for " 644 "the kernel driver."); 645 return -1; 646 } 647 648 if (rsn_preauth_iface_init(hapd)) { 649 wpa_printf(MSG_ERROR, "Initialization of RSN " 650 "pre-authentication failed."); 651 return -1; 652 } 653 654 #ifdef CONFIG_IEEE80211R_AP 655 if (!hostapd_drv_none(hapd) && 656 wpa_key_mgmt_ft(hapd->conf->wpa_key_mgmt)) { 657 hapd->l2 = l2_packet_init(hapd->conf->bridge[0] ? 658 hapd->conf->bridge : 659 hapd->conf->iface, NULL, ETH_P_RRB, 660 hostapd_rrb_receive, hapd, 1); 661 if (hapd->l2 == NULL && 662 (hapd->driver == NULL || 663 hapd->driver->send_ether == NULL)) { 664 wpa_printf(MSG_ERROR, "Failed to open l2_packet " 665 "interface"); 666 return -1; 667 } 668 } 669 #endif /* CONFIG_IEEE80211R_AP */ 670 671 return 0; 672 673 } 674 675 676 void hostapd_reconfig_wpa(struct hostapd_data *hapd) 677 { 678 struct wpa_auth_config wpa_auth_conf; 679 hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &wpa_auth_conf); 680 wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf); 681 } 682 683 684 void hostapd_deinit_wpa(struct hostapd_data *hapd) 685 { 686 ieee80211_tkip_countermeasures_deinit(hapd); 687 rsn_preauth_iface_deinit(hapd); 688 if (hapd->wpa_auth) { 689 wpa_deinit(hapd->wpa_auth); 690 hapd->wpa_auth = NULL; 691 692 if (hapd->drv_priv && hostapd_set_privacy(hapd, 0)) { 693 wpa_printf(MSG_DEBUG, "Could not disable " 694 "PrivacyInvoked for interface %s", 695 hapd->conf->iface); 696 } 697 698 if (hapd->drv_priv && 699 hostapd_set_generic_elem(hapd, (u8 *) "", 0)) { 700 wpa_printf(MSG_DEBUG, "Could not remove generic " 701 "information element from interface %s", 702 hapd->conf->iface); 703 } 704 } 705 ieee802_1x_deinit(hapd); 706 707 #ifdef CONFIG_IEEE80211R_AP 708 l2_packet_deinit(hapd->l2); 709 hapd->l2 = NULL; 710 #endif /* CONFIG_IEEE80211R_AP */ 711 } 712
