Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1 | /* |
| 2 | * hostapd / WPA authenticator glue code |
| 3 | * Copyright (c) 2002-2011, Jouni Malinen <j@w1.fi> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License version 2 as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * Alternatively, this software may be distributed under the terms of BSD |
| 10 | * license. |
| 11 | * |
| 12 | * See README and COPYING for more details. |
| 13 | */ |
| 14 | |
| 15 | #include "utils/includes.h" |
| 16 | |
| 17 | #include "utils/common.h" |
| 18 | #include "common/ieee802_11_defs.h" |
| 19 | #include "eapol_auth/eapol_auth_sm.h" |
| 20 | #include "eapol_auth/eapol_auth_sm_i.h" |
| 21 | #include "eap_server/eap.h" |
| 22 | #include "l2_packet/l2_packet.h" |
| 23 | #include "drivers/driver.h" |
| 24 | #include "hostapd.h" |
| 25 | #include "ieee802_1x.h" |
| 26 | #include "preauth_auth.h" |
| 27 | #include "sta_info.h" |
| 28 | #include "tkip_countermeasures.h" |
| 29 | #include "ap_drv_ops.h" |
| 30 | #include "ap_config.h" |
| 31 | #include "wpa_auth.h" |
| 32 | |
| 33 | |
| 34 | static void hostapd_wpa_auth_conf(struct hostapd_bss_config *conf, |
| 35 | struct wpa_auth_config *wconf) |
| 36 | { |
| 37 | wconf->wpa = conf->wpa; |
| 38 | wconf->wpa_key_mgmt = conf->wpa_key_mgmt; |
| 39 | wconf->wpa_pairwise = conf->wpa_pairwise; |
| 40 | wconf->wpa_group = conf->wpa_group; |
| 41 | wconf->wpa_group_rekey = conf->wpa_group_rekey; |
| 42 | wconf->wpa_strict_rekey = conf->wpa_strict_rekey; |
| 43 | wconf->wpa_gmk_rekey = conf->wpa_gmk_rekey; |
| 44 | wconf->wpa_ptk_rekey = conf->wpa_ptk_rekey; |
| 45 | wconf->rsn_pairwise = conf->rsn_pairwise; |
| 46 | wconf->rsn_preauth = conf->rsn_preauth; |
| 47 | wconf->eapol_version = conf->eapol_version; |
| 48 | wconf->peerkey = conf->peerkey; |
| 49 | wconf->wmm_enabled = conf->wmm_enabled; |
| 50 | wconf->wmm_uapsd = conf->wmm_uapsd; |
Dmitry Shmidt | c55524a | 2011-07-07 11:18:38 -0700 | [diff] [blame^] | 51 | wconf->disable_pmksa_caching = conf->disable_pmksa_caching; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 52 | wconf->okc = conf->okc; |
| 53 | #ifdef CONFIG_IEEE80211W |
| 54 | wconf->ieee80211w = conf->ieee80211w; |
| 55 | #endif /* CONFIG_IEEE80211W */ |
| 56 | #ifdef CONFIG_IEEE80211R |
| 57 | wconf->ssid_len = conf->ssid.ssid_len; |
| 58 | if (wconf->ssid_len > SSID_LEN) |
| 59 | wconf->ssid_len = SSID_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 | } |
| 78 | |
| 79 | |
| 80 | static void hostapd_wpa_auth_logger(void *ctx, const u8 *addr, |
| 81 | logger_level level, const char *txt) |
| 82 | { |
| 83 | #ifndef CONFIG_NO_HOSTAPD_LOGGER |
| 84 | struct hostapd_data *hapd = ctx; |
| 85 | int hlevel; |
| 86 | |
| 87 | switch (level) { |
| 88 | case LOGGER_WARNING: |
| 89 | hlevel = HOSTAPD_LEVEL_WARNING; |
| 90 | break; |
| 91 | case LOGGER_INFO: |
| 92 | hlevel = HOSTAPD_LEVEL_INFO; |
| 93 | break; |
| 94 | case LOGGER_DEBUG: |
| 95 | default: |
| 96 | hlevel = HOSTAPD_LEVEL_DEBUG; |
| 97 | break; |
| 98 | } |
| 99 | |
| 100 | hostapd_logger(hapd, addr, HOSTAPD_MODULE_WPA, hlevel, "%s", txt); |
| 101 | #endif /* CONFIG_NO_HOSTAPD_LOGGER */ |
| 102 | } |
| 103 | |
| 104 | |
| 105 | static void hostapd_wpa_auth_disconnect(void *ctx, const u8 *addr, |
| 106 | u16 reason) |
| 107 | { |
| 108 | struct hostapd_data *hapd = ctx; |
| 109 | wpa_printf(MSG_DEBUG, "%s: WPA authenticator requests disconnect: " |
| 110 | "STA " MACSTR " reason %d", |
| 111 | __func__, MAC2STR(addr), reason); |
| 112 | ap_sta_disconnect(hapd, NULL, addr, reason); |
| 113 | } |
| 114 | |
| 115 | |
| 116 | static void hostapd_wpa_auth_mic_failure_report(void *ctx, const u8 *addr) |
| 117 | { |
| 118 | struct hostapd_data *hapd = ctx; |
| 119 | michael_mic_failure(hapd, addr, 0); |
| 120 | } |
| 121 | |
| 122 | |
| 123 | static void hostapd_wpa_auth_set_eapol(void *ctx, const u8 *addr, |
| 124 | wpa_eapol_variable var, int value) |
| 125 | { |
| 126 | struct hostapd_data *hapd = ctx; |
| 127 | struct sta_info *sta = ap_get_sta(hapd, addr); |
| 128 | if (sta == NULL) |
| 129 | return; |
| 130 | switch (var) { |
| 131 | case WPA_EAPOL_portEnabled: |
| 132 | ieee802_1x_notify_port_enabled(sta->eapol_sm, value); |
| 133 | break; |
| 134 | case WPA_EAPOL_portValid: |
| 135 | ieee802_1x_notify_port_valid(sta->eapol_sm, value); |
| 136 | break; |
| 137 | case WPA_EAPOL_authorized: |
| 138 | ieee802_1x_set_sta_authorized(hapd, sta, value); |
| 139 | break; |
| 140 | case WPA_EAPOL_portControl_Auto: |
| 141 | if (sta->eapol_sm) |
| 142 | sta->eapol_sm->portControl = Auto; |
| 143 | break; |
| 144 | case WPA_EAPOL_keyRun: |
| 145 | if (sta->eapol_sm) |
| 146 | sta->eapol_sm->keyRun = value ? TRUE : FALSE; |
| 147 | break; |
| 148 | case WPA_EAPOL_keyAvailable: |
| 149 | if (sta->eapol_sm) |
| 150 | sta->eapol_sm->eap_if->eapKeyAvailable = |
| 151 | value ? TRUE : FALSE; |
| 152 | break; |
| 153 | case WPA_EAPOL_keyDone: |
| 154 | if (sta->eapol_sm) |
| 155 | sta->eapol_sm->keyDone = value ? TRUE : FALSE; |
| 156 | break; |
| 157 | case WPA_EAPOL_inc_EapolFramesTx: |
| 158 | if (sta->eapol_sm) |
| 159 | sta->eapol_sm->dot1xAuthEapolFramesTx++; |
| 160 | break; |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | |
| 165 | static int hostapd_wpa_auth_get_eapol(void *ctx, const u8 *addr, |
| 166 | wpa_eapol_variable var) |
| 167 | { |
| 168 | struct hostapd_data *hapd = ctx; |
| 169 | struct sta_info *sta = ap_get_sta(hapd, addr); |
| 170 | if (sta == NULL || sta->eapol_sm == NULL) |
| 171 | return -1; |
| 172 | switch (var) { |
| 173 | case WPA_EAPOL_keyRun: |
| 174 | return sta->eapol_sm->keyRun; |
| 175 | case WPA_EAPOL_keyAvailable: |
| 176 | return sta->eapol_sm->eap_if->eapKeyAvailable; |
| 177 | default: |
| 178 | return -1; |
| 179 | } |
| 180 | } |
| 181 | |
| 182 | |
| 183 | static const u8 * hostapd_wpa_auth_get_psk(void *ctx, const u8 *addr, |
| 184 | const u8 *prev_psk) |
| 185 | { |
| 186 | struct hostapd_data *hapd = ctx; |
| 187 | return hostapd_get_psk(hapd->conf, addr, prev_psk); |
| 188 | } |
| 189 | |
| 190 | |
| 191 | static int hostapd_wpa_auth_get_msk(void *ctx, const u8 *addr, u8 *msk, |
| 192 | size_t *len) |
| 193 | { |
| 194 | struct hostapd_data *hapd = ctx; |
| 195 | const u8 *key; |
| 196 | size_t keylen; |
| 197 | struct sta_info *sta; |
| 198 | |
| 199 | sta = ap_get_sta(hapd, addr); |
| 200 | if (sta == NULL) |
| 201 | return -1; |
| 202 | |
| 203 | key = ieee802_1x_get_key(sta->eapol_sm, &keylen); |
| 204 | if (key == NULL) |
| 205 | return -1; |
| 206 | |
| 207 | if (keylen > *len) |
| 208 | keylen = *len; |
| 209 | os_memcpy(msk, key, keylen); |
| 210 | *len = keylen; |
| 211 | |
| 212 | return 0; |
| 213 | } |
| 214 | |
| 215 | |
| 216 | static int hostapd_wpa_auth_set_key(void *ctx, int vlan_id, enum wpa_alg alg, |
| 217 | const u8 *addr, int idx, u8 *key, |
| 218 | size_t key_len) |
| 219 | { |
| 220 | struct hostapd_data *hapd = ctx; |
| 221 | const char *ifname = hapd->conf->iface; |
| 222 | |
| 223 | if (vlan_id > 0) { |
| 224 | ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id); |
| 225 | if (ifname == NULL) |
| 226 | return -1; |
| 227 | } |
| 228 | |
| 229 | return hostapd_drv_set_key(ifname, hapd, alg, addr, idx, 1, NULL, 0, |
| 230 | key, key_len); |
| 231 | } |
| 232 | |
| 233 | |
| 234 | static int hostapd_wpa_auth_get_seqnum(void *ctx, const u8 *addr, int idx, |
| 235 | u8 *seq) |
| 236 | { |
| 237 | struct hostapd_data *hapd = ctx; |
| 238 | return hostapd_get_seqnum(hapd->conf->iface, hapd, addr, idx, seq); |
| 239 | } |
| 240 | |
| 241 | |
| 242 | static int hostapd_wpa_auth_send_eapol(void *ctx, const u8 *addr, |
| 243 | const u8 *data, size_t data_len, |
| 244 | int encrypt) |
| 245 | { |
| 246 | struct hostapd_data *hapd = ctx; |
| 247 | struct sta_info *sta; |
| 248 | u32 flags = 0; |
| 249 | |
| 250 | sta = ap_get_sta(hapd, addr); |
| 251 | if (sta) |
| 252 | flags = hostapd_sta_flags_to_drv(sta->flags); |
| 253 | |
| 254 | return hostapd_drv_hapd_send_eapol(hapd, addr, data, data_len, |
| 255 | encrypt, flags); |
| 256 | } |
| 257 | |
| 258 | |
| 259 | static int hostapd_wpa_auth_for_each_sta( |
| 260 | void *ctx, int (*cb)(struct wpa_state_machine *sm, void *ctx), |
| 261 | void *cb_ctx) |
| 262 | { |
| 263 | struct hostapd_data *hapd = ctx; |
| 264 | struct sta_info *sta; |
| 265 | |
| 266 | for (sta = hapd->sta_list; sta; sta = sta->next) { |
| 267 | if (sta->wpa_sm && cb(sta->wpa_sm, cb_ctx)) |
| 268 | return 1; |
| 269 | } |
| 270 | return 0; |
| 271 | } |
| 272 | |
| 273 | |
| 274 | struct wpa_auth_iface_iter_data { |
| 275 | int (*cb)(struct wpa_authenticator *sm, void *ctx); |
| 276 | void *cb_ctx; |
| 277 | }; |
| 278 | |
| 279 | static int wpa_auth_iface_iter(struct hostapd_iface *iface, void *ctx) |
| 280 | { |
| 281 | struct wpa_auth_iface_iter_data *data = ctx; |
| 282 | size_t i; |
| 283 | for (i = 0; i < iface->num_bss; i++) { |
| 284 | if (iface->bss[i]->wpa_auth && |
| 285 | data->cb(iface->bss[i]->wpa_auth, data->cb_ctx)) |
| 286 | return 1; |
| 287 | } |
| 288 | return 0; |
| 289 | } |
| 290 | |
| 291 | |
| 292 | static int hostapd_wpa_auth_for_each_auth( |
| 293 | void *ctx, int (*cb)(struct wpa_authenticator *sm, void *ctx), |
| 294 | void *cb_ctx) |
| 295 | { |
| 296 | struct hostapd_data *hapd = ctx; |
| 297 | struct wpa_auth_iface_iter_data data; |
| 298 | if (hapd->iface->for_each_interface == NULL) |
| 299 | return -1; |
| 300 | data.cb = cb; |
| 301 | data.cb_ctx = cb_ctx; |
| 302 | return hapd->iface->for_each_interface(hapd->iface->interfaces, |
| 303 | wpa_auth_iface_iter, &data); |
| 304 | } |
| 305 | |
| 306 | |
| 307 | #ifdef CONFIG_IEEE80211R |
| 308 | |
| 309 | struct wpa_auth_ft_iface_iter_data { |
| 310 | struct hostapd_data *src_hapd; |
| 311 | const u8 *dst; |
| 312 | const u8 *data; |
| 313 | size_t data_len; |
| 314 | }; |
| 315 | |
| 316 | |
| 317 | static int hostapd_wpa_auth_ft_iter(struct hostapd_iface *iface, void *ctx) |
| 318 | { |
| 319 | struct wpa_auth_ft_iface_iter_data *idata = ctx; |
| 320 | struct hostapd_data *hapd; |
| 321 | size_t j; |
| 322 | |
| 323 | for (j = 0; j < iface->num_bss; j++) { |
| 324 | hapd = iface->bss[j]; |
| 325 | if (hapd == idata->src_hapd) |
| 326 | continue; |
| 327 | if (os_memcmp(hapd->own_addr, idata->dst, ETH_ALEN) == 0) { |
| 328 | wpa_printf(MSG_DEBUG, "FT: Send RRB data directly to " |
| 329 | "locally managed BSS " MACSTR "@%s -> " |
| 330 | MACSTR "@%s", |
| 331 | MAC2STR(idata->src_hapd->own_addr), |
| 332 | idata->src_hapd->conf->iface, |
| 333 | MAC2STR(hapd->own_addr), hapd->conf->iface); |
| 334 | wpa_ft_rrb_rx(hapd->wpa_auth, |
| 335 | idata->src_hapd->own_addr, |
| 336 | idata->data, idata->data_len); |
| 337 | return 1; |
| 338 | } |
| 339 | } |
| 340 | |
| 341 | return 0; |
| 342 | } |
| 343 | |
| 344 | #endif /* CONFIG_IEEE80211R */ |
| 345 | |
| 346 | |
| 347 | static int hostapd_wpa_auth_send_ether(void *ctx, const u8 *dst, u16 proto, |
| 348 | const u8 *data, size_t data_len) |
| 349 | { |
| 350 | struct hostapd_data *hapd = ctx; |
| 351 | struct l2_ethhdr *buf; |
| 352 | int ret; |
| 353 | |
| 354 | #ifdef CONFIG_IEEE80211R |
| 355 | if (proto == ETH_P_RRB && hapd->iface->for_each_interface) { |
| 356 | int res; |
| 357 | struct wpa_auth_ft_iface_iter_data idata; |
| 358 | idata.src_hapd = hapd; |
| 359 | idata.dst = dst; |
| 360 | idata.data = data; |
| 361 | idata.data_len = data_len; |
| 362 | res = hapd->iface->for_each_interface(hapd->iface->interfaces, |
| 363 | hostapd_wpa_auth_ft_iter, |
| 364 | &idata); |
| 365 | if (res == 1) |
| 366 | return data_len; |
| 367 | } |
| 368 | #endif /* CONFIG_IEEE80211R */ |
| 369 | |
| 370 | if (hapd->driver && hapd->driver->send_ether) |
| 371 | return hapd->driver->send_ether(hapd->drv_priv, dst, |
| 372 | hapd->own_addr, proto, |
| 373 | data, data_len); |
| 374 | if (hapd->l2 == NULL) |
| 375 | return -1; |
| 376 | |
| 377 | buf = os_malloc(sizeof(*buf) + data_len); |
| 378 | if (buf == NULL) |
| 379 | return -1; |
| 380 | os_memcpy(buf->h_dest, dst, ETH_ALEN); |
| 381 | os_memcpy(buf->h_source, hapd->own_addr, ETH_ALEN); |
| 382 | buf->h_proto = host_to_be16(proto); |
| 383 | os_memcpy(buf + 1, data, data_len); |
| 384 | ret = l2_packet_send(hapd->l2, dst, proto, (u8 *) buf, |
| 385 | sizeof(*buf) + data_len); |
| 386 | os_free(buf); |
| 387 | return -1; |
| 388 | } |
| 389 | |
| 390 | |
| 391 | #ifdef CONFIG_IEEE80211R |
| 392 | |
| 393 | static int hostapd_wpa_auth_send_ft_action(void *ctx, const u8 *dst, |
| 394 | const u8 *data, size_t data_len) |
| 395 | { |
| 396 | struct hostapd_data *hapd = ctx; |
| 397 | int res; |
| 398 | struct ieee80211_mgmt *m; |
| 399 | size_t mlen; |
| 400 | struct sta_info *sta; |
| 401 | |
| 402 | sta = ap_get_sta(hapd, dst); |
| 403 | if (sta == NULL || sta->wpa_sm == NULL) |
| 404 | return -1; |
| 405 | |
| 406 | m = os_zalloc(sizeof(*m) + data_len); |
| 407 | if (m == NULL) |
| 408 | return -1; |
| 409 | mlen = ((u8 *) &m->u - (u8 *) m) + data_len; |
| 410 | m->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, |
| 411 | WLAN_FC_STYPE_ACTION); |
| 412 | os_memcpy(m->da, dst, ETH_ALEN); |
| 413 | os_memcpy(m->sa, hapd->own_addr, ETH_ALEN); |
| 414 | os_memcpy(m->bssid, hapd->own_addr, ETH_ALEN); |
| 415 | os_memcpy(&m->u, data, data_len); |
| 416 | |
| 417 | res = hostapd_drv_send_mlme(hapd, (u8 *) m, mlen); |
| 418 | os_free(m); |
| 419 | return res; |
| 420 | } |
| 421 | |
| 422 | |
| 423 | static struct wpa_state_machine * |
| 424 | hostapd_wpa_auth_add_sta(void *ctx, const u8 *sta_addr) |
| 425 | { |
| 426 | struct hostapd_data *hapd = ctx; |
| 427 | struct sta_info *sta; |
| 428 | |
| 429 | sta = ap_sta_add(hapd, sta_addr); |
| 430 | if (sta == NULL) |
| 431 | return NULL; |
| 432 | if (sta->wpa_sm) { |
| 433 | sta->auth_alg = WLAN_AUTH_FT; |
| 434 | return sta->wpa_sm; |
| 435 | } |
| 436 | |
| 437 | sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr); |
| 438 | if (sta->wpa_sm == NULL) { |
| 439 | ap_free_sta(hapd, sta); |
| 440 | return NULL; |
| 441 | } |
| 442 | sta->auth_alg = WLAN_AUTH_FT; |
| 443 | |
| 444 | return sta->wpa_sm; |
| 445 | } |
| 446 | |
| 447 | |
| 448 | static void hostapd_rrb_receive(void *ctx, const u8 *src_addr, const u8 *buf, |
| 449 | size_t len) |
| 450 | { |
| 451 | struct hostapd_data *hapd = ctx; |
| 452 | struct l2_ethhdr *ethhdr; |
| 453 | if (len < sizeof(*ethhdr)) |
| 454 | return; |
| 455 | ethhdr = (struct l2_ethhdr *) buf; |
| 456 | wpa_printf(MSG_DEBUG, "FT: RRB received packet " MACSTR " -> " |
| 457 | MACSTR, MAC2STR(ethhdr->h_source), MAC2STR(ethhdr->h_dest)); |
| 458 | wpa_ft_rrb_rx(hapd->wpa_auth, ethhdr->h_source, buf + sizeof(*ethhdr), |
| 459 | len - sizeof(*ethhdr)); |
| 460 | } |
| 461 | |
| 462 | #endif /* CONFIG_IEEE80211R */ |
| 463 | |
| 464 | |
| 465 | int hostapd_setup_wpa(struct hostapd_data *hapd) |
| 466 | { |
| 467 | struct wpa_auth_config _conf; |
| 468 | struct wpa_auth_callbacks cb; |
| 469 | const u8 *wpa_ie; |
| 470 | size_t wpa_ie_len; |
| 471 | |
| 472 | hostapd_wpa_auth_conf(hapd->conf, &_conf); |
| 473 | if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_EAPOL_TX_STATUS) |
| 474 | _conf.tx_status = 1; |
| 475 | os_memset(&cb, 0, sizeof(cb)); |
| 476 | cb.ctx = hapd; |
| 477 | cb.logger = hostapd_wpa_auth_logger; |
| 478 | cb.disconnect = hostapd_wpa_auth_disconnect; |
| 479 | cb.mic_failure_report = hostapd_wpa_auth_mic_failure_report; |
| 480 | cb.set_eapol = hostapd_wpa_auth_set_eapol; |
| 481 | cb.get_eapol = hostapd_wpa_auth_get_eapol; |
| 482 | cb.get_psk = hostapd_wpa_auth_get_psk; |
| 483 | cb.get_msk = hostapd_wpa_auth_get_msk; |
| 484 | cb.set_key = hostapd_wpa_auth_set_key; |
| 485 | cb.get_seqnum = hostapd_wpa_auth_get_seqnum; |
| 486 | cb.send_eapol = hostapd_wpa_auth_send_eapol; |
| 487 | cb.for_each_sta = hostapd_wpa_auth_for_each_sta; |
| 488 | cb.for_each_auth = hostapd_wpa_auth_for_each_auth; |
| 489 | cb.send_ether = hostapd_wpa_auth_send_ether; |
| 490 | #ifdef CONFIG_IEEE80211R |
| 491 | cb.send_ft_action = hostapd_wpa_auth_send_ft_action; |
| 492 | cb.add_sta = hostapd_wpa_auth_add_sta; |
| 493 | #endif /* CONFIG_IEEE80211R */ |
| 494 | hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb); |
| 495 | if (hapd->wpa_auth == NULL) { |
| 496 | wpa_printf(MSG_ERROR, "WPA initialization failed."); |
| 497 | return -1; |
| 498 | } |
| 499 | |
| 500 | if (hostapd_set_privacy(hapd, 1)) { |
| 501 | wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked " |
| 502 | "for interface %s", hapd->conf->iface); |
| 503 | return -1; |
| 504 | } |
| 505 | |
| 506 | wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len); |
| 507 | if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len)) { |
| 508 | wpa_printf(MSG_ERROR, "Failed to configure WPA IE for " |
| 509 | "the kernel driver."); |
| 510 | return -1; |
| 511 | } |
| 512 | |
| 513 | if (rsn_preauth_iface_init(hapd)) { |
| 514 | wpa_printf(MSG_ERROR, "Initialization of RSN " |
| 515 | "pre-authentication failed."); |
| 516 | return -1; |
| 517 | } |
| 518 | |
| 519 | #ifdef CONFIG_IEEE80211R |
| 520 | if (!hostapd_drv_none(hapd)) { |
| 521 | hapd->l2 = l2_packet_init(hapd->conf->bridge[0] ? |
| 522 | hapd->conf->bridge : |
| 523 | hapd->conf->iface, NULL, ETH_P_RRB, |
| 524 | hostapd_rrb_receive, hapd, 1); |
| 525 | if (hapd->l2 == NULL && |
| 526 | (hapd->driver == NULL || |
| 527 | hapd->driver->send_ether == NULL)) { |
| 528 | wpa_printf(MSG_ERROR, "Failed to open l2_packet " |
| 529 | "interface"); |
| 530 | return -1; |
| 531 | } |
| 532 | } |
| 533 | #endif /* CONFIG_IEEE80211R */ |
| 534 | |
| 535 | return 0; |
| 536 | |
| 537 | } |
| 538 | |
| 539 | |
| 540 | void hostapd_reconfig_wpa(struct hostapd_data *hapd) |
| 541 | { |
| 542 | struct wpa_auth_config wpa_auth_conf; |
| 543 | hostapd_wpa_auth_conf(hapd->conf, &wpa_auth_conf); |
| 544 | wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf); |
| 545 | } |
| 546 | |
| 547 | |
| 548 | void hostapd_deinit_wpa(struct hostapd_data *hapd) |
| 549 | { |
| 550 | rsn_preauth_iface_deinit(hapd); |
| 551 | if (hapd->wpa_auth) { |
| 552 | wpa_deinit(hapd->wpa_auth); |
| 553 | hapd->wpa_auth = NULL; |
| 554 | |
| 555 | if (hostapd_set_privacy(hapd, 0)) { |
| 556 | wpa_printf(MSG_DEBUG, "Could not disable " |
| 557 | "PrivacyInvoked for interface %s", |
| 558 | hapd->conf->iface); |
| 559 | } |
| 560 | |
| 561 | if (hostapd_set_generic_elem(hapd, (u8 *) "", 0)) { |
| 562 | wpa_printf(MSG_DEBUG, "Could not remove generic " |
| 563 | "information element from interface %s", |
| 564 | hapd->conf->iface); |
| 565 | } |
| 566 | } |
| 567 | ieee802_1x_deinit(hapd); |
| 568 | |
| 569 | #ifdef CONFIG_IEEE80211R |
| 570 | l2_packet_deinit(hapd->l2); |
| 571 | #endif /* CONFIG_IEEE80211R */ |
| 572 | } |