contrib/wpa/src/ap/wpa_auth_glue.c

   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 "utils/eloop.h"
  13 #include "utils/list.h"
  14 #include "common/ieee802_11_defs.h"
  15 #include "common/sae.h"
  16 #include "common/wpa_ctrl.h"
  17 #include "crypto/sha1.h"
  18 #include "eapol_auth/eapol_auth_sm.h"
  19 #include "eapol_auth/eapol_auth_sm_i.h"
  20 #include "eap_server/eap.h"
  21 #include "l2_packet/l2_packet.h"
  22 #include "eth_p_oui.h"
  23 #include "hostapd.h"
  24 #include "ieee802_1x.h"
  25 #include "preauth_auth.h"
  26 #include "sta_info.h"
  27 #include "tkip_countermeasures.h"
  28 #include "ap_drv_ops.h"
  29 #include "ap_config.h"
  30 #include "pmksa_cache_auth.h"
  31 #include "wpa_auth.h"
  32 #include "wpa_auth_glue.h"
  33
  34
  35 static void hostapd_wpa_auth_conf(struct hostapd_bss_config *conf,
  36                                   struct hostapd_config *iconf,
  37                                   struct wpa_auth_config *wconf)
  38 {
  39         os_memset(wconf, 0, sizeof(*wconf));
  40         wconf->wpa = conf->wpa;
  41         wconf->wpa_key_mgmt = conf->wpa_key_mgmt;
  42         wconf->wpa_pairwise = conf->wpa_pairwise;
  43         wconf->wpa_group = conf->wpa_group;
  44         wconf->wpa_group_rekey = conf->wpa_group_rekey;
  45         wconf->wpa_strict_rekey = conf->wpa_strict_rekey;
  46         wconf->wpa_gmk_rekey = conf->wpa_gmk_rekey;
  47         wconf->wpa_ptk_rekey = conf->wpa_ptk_rekey;
  48         wconf->wpa_group_update_count = conf->wpa_group_update_count;
  49         wconf->wpa_disable_eapol_key_retries =
  50                 conf->wpa_disable_eapol_key_retries;
  51         wconf->wpa_pairwise_update_count = conf->wpa_pairwise_update_count;
  52         wconf->rsn_pairwise = conf->rsn_pairwise;
  53         wconf->rsn_preauth = conf->rsn_preauth;
  54         wconf->eapol_version = conf->eapol_version;
  55         wconf->wmm_enabled = conf->wmm_enabled;
  56         wconf->wmm_uapsd = conf->wmm_uapsd;
  57         wconf->disable_pmksa_caching = conf->disable_pmksa_caching;
  58         wconf->okc = conf->okc;
  59 #ifdef CONFIG_IEEE80211W
  60         wconf->ieee80211w = conf->ieee80211w;
  61         wconf->group_mgmt_cipher = conf->group_mgmt_cipher;
  62         wconf->sae_require_mfp = conf->sae_require_mfp;
  63 #endif /* CONFIG_IEEE80211W */
  64 #ifdef CONFIG_IEEE80211R_AP
  65         wconf->ssid_len = conf->ssid.ssid_len;
  66         if (wconf->ssid_len > SSID_MAX_LEN)
  67                 wconf->ssid_len = SSID_MAX_LEN;
  68         os_memcpy(wconf->ssid, conf->ssid.ssid, wconf->ssid_len);
  69         os_memcpy(wconf->mobility_domain, conf->mobility_domain,
  70                   MOBILITY_DOMAIN_ID_LEN);
  71         if (conf->nas_identifier &&
  72             os_strlen(conf->nas_identifier) <= FT_R0KH_ID_MAX_LEN) {
  73                 wconf->r0_key_holder_len = os_strlen(conf->nas_identifier);
  74                 os_memcpy(wconf->r0_key_holder, conf->nas_identifier,
  75                           wconf->r0_key_holder_len);
  76         }
  77         os_memcpy(wconf->r1_key_holder, conf->r1_key_holder, FT_R1KH_ID_LEN);
  78         wconf->r0_key_lifetime = conf->r0_key_lifetime;
  79         wconf->r1_max_key_lifetime = conf->r1_max_key_lifetime;
  80         wconf->reassociation_deadline = conf->reassociation_deadline;
  81         wconf->rkh_pos_timeout = conf->rkh_pos_timeout;
  82         wconf->rkh_neg_timeout = conf->rkh_neg_timeout;
  83         wconf->rkh_pull_timeout = conf->rkh_pull_timeout;
  84         wconf->rkh_pull_retries = conf->rkh_pull_retries;
  85         wconf->r0kh_list = &conf->r0kh_list;
  86         wconf->r1kh_list = &conf->r1kh_list;
  87         wconf->pmk_r1_push = conf->pmk_r1_push;
  88         wconf->ft_over_ds = conf->ft_over_ds;
  89         wconf->ft_psk_generate_local = conf->ft_psk_generate_local;
  90 #endif /* CONFIG_IEEE80211R_AP */
  91 #ifdef CONFIG_HS20
  92         wconf->disable_gtk = conf->disable_dgaf;
  93         if (conf->osen) {
  94                 wconf->disable_gtk = 1;
  95                 wconf->wpa = WPA_PROTO_OSEN;
  96                 wconf->wpa_key_mgmt = WPA_KEY_MGMT_OSEN;
  97                 wconf->wpa_pairwise = 0;
  98                 wconf->wpa_group = WPA_CIPHER_CCMP;
  99                 wconf->rsn_pairwise = WPA_CIPHER_CCMP;
 100                 wconf->rsn_preauth = 0;
 101                 wconf->disable_pmksa_caching = 1;
 102 #ifdef CONFIG_IEEE80211W
 103                 wconf->ieee80211w = 1;
 104 #endif /* CONFIG_IEEE80211W */
 105         }
 106 #endif /* CONFIG_HS20 */
 107 #ifdef CONFIG_TESTING_OPTIONS
 108         wconf->corrupt_gtk_rekey_mic_probability =
 109                 iconf->corrupt_gtk_rekey_mic_probability;
 110         if (conf->own_ie_override &&
 111             wpabuf_len(conf->own_ie_override) <= MAX_OWN_IE_OVERRIDE) {
 112                 wconf->own_ie_override_len = wpabuf_len(conf->own_ie_override);
 113                 os_memcpy(wconf->own_ie_override,
 114                           wpabuf_head(conf->own_ie_override),
 115                           wconf->own_ie_override_len);
 116         }
 117 #endif /* CONFIG_TESTING_OPTIONS */
 118 #ifdef CONFIG_P2P
 119         os_memcpy(wconf->ip_addr_go, conf->ip_addr_go, 4);
 120         os_memcpy(wconf->ip_addr_mask, conf->ip_addr_mask, 4);
 121         os_memcpy(wconf->ip_addr_start, conf->ip_addr_start, 4);
 122         os_memcpy(wconf->ip_addr_end, conf->ip_addr_end, 4);
 123 #endif /* CONFIG_P2P */
 124 #ifdef CONFIG_FILS
 125         wconf->fils_cache_id_set = conf->fils_cache_id_set;
 126         os_memcpy(wconf->fils_cache_id, conf->fils_cache_id,
 127                   FILS_CACHE_ID_LEN);
 128 #endif /* CONFIG_FILS */
 129 }
 130
 131
 132 static void hostapd_wpa_auth_logger(void *ctx, const u8 *addr,
 133                                     logger_level level, const char *txt)
 134 {
 135 #ifndef CONFIG_NO_HOSTAPD_LOGGER
 136         struct hostapd_data *hapd = ctx;
 137         int hlevel;
 138
 139         switch (level) {
 140         case LOGGER_WARNING:
 141                 hlevel = HOSTAPD_LEVEL_WARNING;
 142                 break;
 143         case LOGGER_INFO:
 144                 hlevel = HOSTAPD_LEVEL_INFO;
 145                 break;
 146         case LOGGER_DEBUG:
 147         default:
 148                 hlevel = HOSTAPD_LEVEL_DEBUG;
 149                 break;
 150         }
 151
 152         hostapd_logger(hapd, addr, HOSTAPD_MODULE_WPA, hlevel, "%s", txt);
 153 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
 154 }
 155
 156
 157 static void hostapd_wpa_auth_disconnect(void *ctx, const u8 *addr,
 158                                         u16 reason)
 159 {
 160         struct hostapd_data *hapd = ctx;
 161         wpa_printf(MSG_DEBUG, "%s: WPA authenticator requests disconnect: "
 162                    "STA " MACSTR " reason %d",
 163                    __func__, MAC2STR(addr), reason);
 164         ap_sta_disconnect(hapd, NULL, addr, reason);
 165 }
 166
 167
 168 static int hostapd_wpa_auth_mic_failure_report(void *ctx, const u8 *addr)
 169 {
 170         struct hostapd_data *hapd = ctx;
 171         return michael_mic_failure(hapd, addr, 0);
 172 }
 173
 174
 175 static void hostapd_wpa_auth_psk_failure_report(void *ctx, const u8 *addr)
 176 {
 177         struct hostapd_data *hapd = ctx;
 178         wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_POSSIBLE_PSK_MISMATCH MACSTR,
 179                 MAC2STR(addr));
 180 }
 181
 182
 183 static void hostapd_wpa_auth_set_eapol(void *ctx, const u8 *addr,
 184                                        wpa_eapol_variable var, int value)
 185 {
 186         struct hostapd_data *hapd = ctx;
 187         struct sta_info *sta = ap_get_sta(hapd, addr);
 188         if (sta == NULL)
 189                 return;
 190         switch (var) {
 191         case WPA_EAPOL_portEnabled:
 192                 ieee802_1x_notify_port_enabled(sta->eapol_sm, value);
 193                 break;
 194         case WPA_EAPOL_portValid:
 195                 ieee802_1x_notify_port_valid(sta->eapol_sm, value);
 196                 break;
 197         case WPA_EAPOL_authorized:
 198                 ieee802_1x_set_sta_authorized(hapd, sta, value);
 199                 break;
 200         case WPA_EAPOL_portControl_Auto:
 201                 if (sta->eapol_sm)
 202                         sta->eapol_sm->portControl = Auto;
 203                 break;
 204         case WPA_EAPOL_keyRun:
 205                 if (sta->eapol_sm)
 206                         sta->eapol_sm->keyRun = value ? TRUE : FALSE;
 207                 break;
 208         case WPA_EAPOL_keyAvailable:
 209                 if (sta->eapol_sm)
 210                         sta->eapol_sm->eap_if->eapKeyAvailable =
 211                                 value ? TRUE : FALSE;
 212                 break;
 213         case WPA_EAPOL_keyDone:
 214                 if (sta->eapol_sm)
 215                         sta->eapol_sm->keyDone = value ? TRUE : FALSE;
 216                 break;
 217         case WPA_EAPOL_inc_EapolFramesTx:
 218                 if (sta->eapol_sm)
 219                         sta->eapol_sm->dot1xAuthEapolFramesTx++;
 220                 break;
 221         }
 222 }
 223
 224
 225 static int hostapd_wpa_auth_get_eapol(void *ctx, const u8 *addr,
 226                                       wpa_eapol_variable var)
 227 {
 228         struct hostapd_data *hapd = ctx;
 229         struct sta_info *sta = ap_get_sta(hapd, addr);
 230         if (sta == NULL || sta->eapol_sm == NULL)
 231                 return -1;
 232         switch (var) {
 233         case WPA_EAPOL_keyRun:
 234                 return sta->eapol_sm->keyRun;
 235         case WPA_EAPOL_keyAvailable:
 236                 return sta->eapol_sm->eap_if->eapKeyAvailable;
 237         default:
 238                 return -1;
 239         }
 240 }
 241
 242
 243 static const u8 * hostapd_wpa_auth_get_psk(void *ctx, const u8 *addr,
 244                                            const u8 *p2p_dev_addr,
 245                                            const u8 *prev_psk, size_t *psk_len)
 246 {
 247         struct hostapd_data *hapd = ctx;
 248         struct sta_info *sta = ap_get_sta(hapd, addr);
 249         const u8 *psk;
 250
 251         if (psk_len)
 252                 *psk_len = PMK_LEN;
 253
 254 #ifdef CONFIG_SAE
 255         if (sta && sta->auth_alg == WLAN_AUTH_SAE) {
 256                 if (!sta->sae || prev_psk)
 257                         return NULL;
 258                 return sta->sae->pmk;
 259         }
 260         if (sta && wpa_auth_uses_sae(sta->wpa_sm)) {
 261                 wpa_printf(MSG_DEBUG,
 262                            "No PSK for STA trying to use SAE with PMKSA caching");
 263                 return NULL;
 264         }
 265 #endif /* CONFIG_SAE */
 266
 267 #ifdef CONFIG_OWE
 268         if ((hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_OWE) &&
 269             sta && sta->owe_pmk) {
 270                 if (psk_len)
 271                         *psk_len = sta->owe_pmk_len;
 272                 return sta->owe_pmk;
 273         }
 274         if ((hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_OWE) && sta) {
 275                 struct rsn_pmksa_cache_entry *sa;
 276
 277                 sa = wpa_auth_sta_get_pmksa(sta->wpa_sm);
 278                 if (sa && sa->akmp == WPA_KEY_MGMT_OWE) {
 279                         if (psk_len)
 280                                 *psk_len = sa->pmk_len;
 281                         return sa->pmk;
 282                 }
 283         }
 284 #endif /* CONFIG_OWE */
 285
 286         psk = hostapd_get_psk(hapd->conf, addr, p2p_dev_addr, prev_psk);
 287         /*
 288          * This is about to iterate over all psks, prev_psk gives the last
 289          * returned psk which should not be returned again.
 290          * logic list (all hostapd_get_psk; all sta->psk)
 291          */
 292         if (sta && sta->psk && !psk) {
 293                 struct hostapd_sta_wpa_psk_short *pos;
 294                 psk = sta->psk->psk;
 295                 for (pos = sta->psk; pos; pos = pos->next) {
 296                         if (pos->is_passphrase) {
 297                                 pbkdf2_sha1(pos->passphrase,
 298                                             hapd->conf->ssid.ssid,
 299                                             hapd->conf->ssid.ssid_len, 4096,
 300                                             pos->psk, PMK_LEN);
 301                                 pos->is_passphrase = 0;
 302                         }
 303                         if (pos->psk == prev_psk) {
 304                                 psk = pos->next ? pos->next->psk : NULL;
 305                                 break;
 306                         }
 307                 }
 308         }
 309         return psk;
 310 }
 311
 312
 313 static int hostapd_wpa_auth_get_msk(void *ctx, const u8 *addr, u8 *msk,
 314                                     size_t *len)
 315 {
 316         struct hostapd_data *hapd = ctx;
 317         const u8 *key;
 318         size_t keylen;
 319         struct sta_info *sta;
 320
 321         sta = ap_get_sta(hapd, addr);
 322         if (sta == NULL) {
 323                 wpa_printf(MSG_DEBUG, "AUTH_GET_MSK: Cannot find STA");
 324                 return -1;
 325         }
 326
 327         key = ieee802_1x_get_key(sta->eapol_sm, &keylen);
 328         if (key == NULL) {
 329                 wpa_printf(MSG_DEBUG, "AUTH_GET_MSK: Key is null, eapol_sm: %p",
 330                            sta->eapol_sm);
 331                 return -1;
 332         }
 333
 334         if (keylen > *len)
 335                 keylen = *len;
 336         os_memcpy(msk, key, keylen);
 337         *len = keylen;
 338
 339         return 0;
 340 }
 341
 342
 343 static int hostapd_wpa_auth_set_key(void *ctx, int vlan_id, enum wpa_alg alg,
 344                                     const u8 *addr, int idx, u8 *key,
 345                                     size_t key_len)
 346 {
 347         struct hostapd_data *hapd = ctx;
 348         const char *ifname = hapd->conf->iface;
 349
 350         if (vlan_id > 0) {
 351                 ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id);
 352                 if (ifname == NULL)
 353                         return -1;
 354         }
 355
 356 #ifdef CONFIG_TESTING_OPTIONS
 357         if (addr && !is_broadcast_ether_addr(addr)) {
 358                 struct sta_info *sta;
 359
 360                 sta = ap_get_sta(hapd, addr);
 361                 if (sta) {
 362                         sta->last_tk_alg = alg;
 363                         sta->last_tk_key_idx = idx;
 364                         if (key)
 365                                 os_memcpy(sta->last_tk, key, key_len);
 366                         sta->last_tk_len = key_len;
 367                 }
 368 #ifdef CONFIG_IEEE80211W
 369         } else if (alg == WPA_ALG_IGTK ||
 370                    alg == WPA_ALG_BIP_GMAC_128 ||
 371                    alg == WPA_ALG_BIP_GMAC_256 ||
 372                    alg == WPA_ALG_BIP_CMAC_256) {
 373                 hapd->last_igtk_alg = alg;
 374                 hapd->last_igtk_key_idx = idx;
 375                 if (key)
 376                         os_memcpy(hapd->last_igtk, key, key_len);
 377                 hapd->last_igtk_len = key_len;
 378 #endif /* CONFIG_IEEE80211W */
 379         } else {
 380                 hapd->last_gtk_alg = alg;
 381                 hapd->last_gtk_key_idx = idx;
 382                 if (key)
 383                         os_memcpy(hapd->last_gtk, key, key_len);
 384                 hapd->last_gtk_len = key_len;
 385         }
 386 #endif /* CONFIG_TESTING_OPTIONS */
 387         return hostapd_drv_set_key(ifname, hapd, alg, addr, idx, 1, NULL, 0,
 388                                    key, key_len);
 389 }
 390
 391
 392 static int hostapd_wpa_auth_get_seqnum(void *ctx, const u8 *addr, int idx,
 393                                        u8 *seq)
 394 {
 395         struct hostapd_data *hapd = ctx;
 396         return hostapd_get_seqnum(hapd->conf->iface, hapd, addr, idx, seq);
 397 }
 398
 399
 400 static int hostapd_wpa_auth_send_eapol(void *ctx, const u8 *addr,
 401                                        const u8 *data, size_t data_len,
 402                                        int encrypt)
 403 {
 404         struct hostapd_data *hapd = ctx;
 405         struct sta_info *sta;
 406         u32 flags = 0;
 407
 408 #ifdef CONFIG_TESTING_OPTIONS
 409         if (hapd->ext_eapol_frame_io) {
 410                 size_t hex_len = 2 * data_len + 1;
 411                 char *hex = os_malloc(hex_len);
 412
 413                 if (hex == NULL)
 414                         return -1;
 415                 wpa_snprintf_hex(hex, hex_len, data, data_len);
 416                 wpa_msg(hapd->msg_ctx, MSG_INFO, "EAPOL-TX " MACSTR " %s",
 417                         MAC2STR(addr), hex);
 418                 os_free(hex);
 419                 return 0;
 420         }
 421 #endif /* CONFIG_TESTING_OPTIONS */
 422
 423         sta = ap_get_sta(hapd, addr);
 424         if (sta)
 425                 flags = hostapd_sta_flags_to_drv(sta->flags);
 426
 427         return hostapd_drv_hapd_send_eapol(hapd, addr, data, data_len,
 428                                            encrypt, flags);
 429 }
 430
 431
 432 static int hostapd_wpa_auth_for_each_sta(
 433         void *ctx, int (*cb)(struct wpa_state_machine *sm, void *ctx),
 434         void *cb_ctx)
 435 {
 436         struct hostapd_data *hapd = ctx;
 437         struct sta_info *sta;
 438
 439         for (sta = hapd->sta_list; sta; sta = sta->next) {
 440                 if (sta->wpa_sm && cb(sta->wpa_sm, cb_ctx))
 441                         return 1;
 442         }
 443         return 0;
 444 }
 445
 446
 447 struct wpa_auth_iface_iter_data {
 448         int (*cb)(struct wpa_authenticator *sm, void *ctx);
 449         void *cb_ctx;
 450 };
 451
 452 static int wpa_auth_iface_iter(struct hostapd_iface *iface, void *ctx)
 453 {
 454         struct wpa_auth_iface_iter_data *data = ctx;
 455         size_t i;
 456         for (i = 0; i < iface->num_bss; i++) {
 457                 if (iface->bss[i]->wpa_auth &&
 458                     data->cb(iface->bss[i]->wpa_auth, data->cb_ctx))
 459                         return 1;
 460         }
 461         return 0;
 462 }
 463
 464
 465 static int hostapd_wpa_auth_for_each_auth(
 466         void *ctx, int (*cb)(struct wpa_authenticator *sm, void *ctx),
 467         void *cb_ctx)
 468 {
 469         struct hostapd_data *hapd = ctx;
 470         struct wpa_auth_iface_iter_data data;
 471         if (hapd->iface->interfaces == NULL ||
 472             hapd->iface->interfaces->for_each_interface == NULL)
 473                 return -1;
 474         data.cb = cb;
 475         data.cb_ctx = cb_ctx;
 476         return hapd->iface->interfaces->for_each_interface(
 477                 hapd->iface->interfaces, wpa_auth_iface_iter, &data);
 478 }
 479
 480
 481 #ifdef CONFIG_IEEE80211R_AP
 482
 483 struct wpa_ft_rrb_rx_later_data {
 484         struct dl_list list;
 485         u8 addr[ETH_ALEN];
 486         size_t data_len;
 487         /* followed by data_len octets of data */
 488 };
 489
 490 static void hostapd_wpa_ft_rrb_rx_later(void *eloop_ctx, void *timeout_ctx)
 491 {
 492         struct hostapd_data *hapd = eloop_ctx;
 493         struct wpa_ft_rrb_rx_later_data *data, *n;
 494
 495         dl_list_for_each_safe(data, n, &hapd->l2_queue,
 496                               struct wpa_ft_rrb_rx_later_data, list) {
 497                 if (hapd->wpa_auth) {
 498                         wpa_ft_rrb_rx(hapd->wpa_auth, data->addr,
 499                                       (const u8 *) (data + 1),
 500                                       data->data_len);
 501                 }
 502                 dl_list_del(&data->list);
 503                 os_free(data);
 504         }
 505 }
 506
 507
 508 struct wpa_auth_ft_iface_iter_data {
 509         struct hostapd_data *src_hapd;
 510         const u8 *dst;
 511         const u8 *data;
 512         size_t data_len;
 513 };
 514
 515
 516 static int hostapd_wpa_auth_ft_iter(struct hostapd_iface *iface, void *ctx)
 517 {
 518         struct wpa_auth_ft_iface_iter_data *idata = ctx;
 519         struct wpa_ft_rrb_rx_later_data *data;
 520         struct hostapd_data *hapd;
 521         size_t j;
 522
 523         for (j = 0; j < iface->num_bss; j++) {
 524                 hapd = iface->bss[j];
 525                 if (hapd == idata->src_hapd ||
 526                     !hapd->wpa_auth ||
 527                     os_memcmp(hapd->own_addr, idata->dst, ETH_ALEN) != 0)
 528                         continue;
 529
 530                 wpa_printf(MSG_DEBUG,
 531                            "FT: Send RRB data directly to locally managed BSS "
 532                            MACSTR "@%s -> " MACSTR "@%s",
 533                            MAC2STR(idata->src_hapd->own_addr),
 534                            idata->src_hapd->conf->iface,
 535                            MAC2STR(hapd->own_addr), hapd->conf->iface);
 536
 537                 /* Defer wpa_ft_rrb_rx() until next eloop step as this is
 538                  * when it would be triggered when reading from a socket.
 539                  * This avoids
 540                  * hapd0:send -> hapd1:recv -> hapd1:send -> hapd0:recv,
 541                  * that is calling hapd0:recv handler from within
 542                  * hapd0:send directly.
 543                  */
 544                 data = os_zalloc(sizeof(*data) + idata->data_len);
 545                 if (!data)
 546                         return 1;
 547
 548                 os_memcpy(data->addr, idata->src_hapd->own_addr, ETH_ALEN);
 549                 os_memcpy(data + 1, idata->data, idata->data_len);
 550                 data->data_len = idata->data_len;
 551
 552                 dl_list_add(&hapd->l2_queue, &data->list);
 553
 554                 if (!eloop_is_timeout_registered(hostapd_wpa_ft_rrb_rx_later,
 555                                                  hapd, NULL))
 556                         eloop_register_timeout(0, 0,
 557                                                hostapd_wpa_ft_rrb_rx_later,
 558                                                hapd, NULL);
 559
 560                 return 1;
 561         }
 562
 563         return 0;
 564 }
 565
 566 #endif /* CONFIG_IEEE80211R_AP */
 567
 568
 569 static int hostapd_wpa_auth_send_ether(void *ctx, const u8 *dst, u16 proto,
 570                                        const u8 *data, size_t data_len)
 571 {
 572         struct hostapd_data *hapd = ctx;
 573         struct l2_ethhdr *buf;
 574         int ret;
 575
 576 #ifdef CONFIG_TESTING_OPTIONS
 577         if (hapd->ext_eapol_frame_io && proto == ETH_P_EAPOL) {
 578                 size_t hex_len = 2 * data_len + 1;
 579                 char *hex = os_malloc(hex_len);
 580
 581                 if (hex == NULL)
 582                         return -1;
 583                 wpa_snprintf_hex(hex, hex_len, data, data_len);
 584                 wpa_msg(hapd->msg_ctx, MSG_INFO, "EAPOL-TX " MACSTR " %s",
 585                         MAC2STR(dst), hex);
 586                 os_free(hex);
 587                 return 0;
 588         }
 589 #endif /* CONFIG_TESTING_OPTIONS */
 590
 591 #ifdef CONFIG_IEEE80211R_AP
 592         if (proto == ETH_P_RRB && hapd->iface->interfaces &&
 593             hapd->iface->interfaces->for_each_interface) {
 594                 int res;
 595                 struct wpa_auth_ft_iface_iter_data idata;
 596                 idata.src_hapd = hapd;
 597                 idata.dst = dst;
 598                 idata.data = data;
 599                 idata.data_len = data_len;
 600                 res = hapd->iface->interfaces->for_each_interface(
 601                         hapd->iface->interfaces, hostapd_wpa_auth_ft_iter,
 602                         &idata);
 603                 if (res == 1)
 604                         return data_len;
 605         }
 606 #endif /* CONFIG_IEEE80211R_AP */
 607
 608         if (hapd->driver && hapd->driver->send_ether)
 609                 return hapd->driver->send_ether(hapd->drv_priv, dst,
 610                                                 hapd->own_addr, proto,
 611                                                 data, data_len);
 612         if (hapd->l2 == NULL)
 613                 return -1;
 614
 615         buf = os_malloc(sizeof(*buf) + data_len);
 616         if (buf == NULL)
 617                 return -1;
 618         os_memcpy(buf->h_dest, dst, ETH_ALEN);
 619         os_memcpy(buf->h_source, hapd->own_addr, ETH_ALEN);
 620         buf->h_proto = host_to_be16(proto);
 621         os_memcpy(buf + 1, data, data_len);
 622         ret = l2_packet_send(hapd->l2, dst, proto, (u8 *) buf,
 623                              sizeof(*buf) + data_len);
 624         os_free(buf);
 625         return ret;
 626 }
 627
 628
 629 #ifdef CONFIG_ETH_P_OUI
 630 static struct eth_p_oui_ctx * hostapd_wpa_get_oui(struct hostapd_data *hapd,
 631                                                   u8 oui_suffix)
 632 {
 633         switch (oui_suffix) {
 634 #ifdef CONFIG_IEEE80211R_AP
 635         case FT_PACKET_R0KH_R1KH_PULL:
 636                 return hapd->oui_pull;
 637         case FT_PACKET_R0KH_R1KH_RESP:
 638                 return hapd->oui_resp;
 639         case FT_PACKET_R0KH_R1KH_PUSH:
 640                 return hapd->oui_push;
 641         case FT_PACKET_R0KH_R1KH_SEQ_REQ:
 642                 return hapd->oui_sreq;
 643         case FT_PACKET_R0KH_R1KH_SEQ_RESP:
 644                 return hapd->oui_sresp;
 645 #endif /* CONFIG_IEEE80211R_AP */
 646         default:
 647                 return NULL;
 648         }
 649 }
 650 #endif /* CONFIG_ETH_P_OUI */
 651
 652
 653 #ifdef CONFIG_IEEE80211R_AP
 654
 655 struct oui_deliver_later_data {
 656         struct dl_list list;
 657         u8 src_addr[ETH_ALEN];
 658         u8 dst_addr[ETH_ALEN];
 659         size_t data_len;
 660         u8 oui_suffix;
 661         /* followed by data_len octets of data */
 662 };
 663
 664 static void hostapd_oui_deliver_later(void *eloop_ctx, void *timeout_ctx)
 665 {
 666         struct hostapd_data *hapd = eloop_ctx;
 667         struct oui_deliver_later_data *data, *n;
 668         struct eth_p_oui_ctx *oui_ctx;
 669
 670         dl_list_for_each_safe(data, n, &hapd->l2_oui_queue,
 671                               struct oui_deliver_later_data, list) {
 672                 oui_ctx = hostapd_wpa_get_oui(hapd, data->oui_suffix);
 673                 if (hapd->wpa_auth && oui_ctx) {
 674                         eth_p_oui_deliver(oui_ctx, data->src_addr,
 675                                           data->dst_addr,
 676                                           (const u8 *) (data + 1),
 677                                           data->data_len);
 678                 }
 679                 dl_list_del(&data->list);
 680                 os_free(data);
 681         }
 682 }
 683
 684
 685 struct wpa_auth_oui_iface_iter_data {
 686         struct hostapd_data *src_hapd;
 687         const u8 *dst_addr;
 688         const u8 *data;
 689         size_t data_len;
 690         u8 oui_suffix;
 691 };
 692
 693 static int hostapd_wpa_auth_oui_iter(struct hostapd_iface *iface, void *ctx)
 694 {
 695         struct wpa_auth_oui_iface_iter_data *idata = ctx;
 696         struct oui_deliver_later_data *data;
 697         struct hostapd_data *hapd;
 698         size_t j;
 699
 700         for (j = 0; j < iface->num_bss; j++) {
 701                 hapd = iface->bss[j];
 702                 if (hapd == idata->src_hapd)
 703                         continue;
 704                 if (!is_multicast_ether_addr(idata->dst_addr) &&
 705                     os_memcmp(hapd->own_addr, idata->dst_addr, ETH_ALEN) != 0)
 706                         continue;
 707
 708                 /* defer eth_p_oui_deliver until next eloop step as this is
 709                  * when it would be triggerd from reading from sock
 710                  * This avoids
 711                  * hapd0:send -> hapd1:recv -> hapd1:send -> hapd0:recv,
 712                  * that is calling hapd0:recv handler from within
 713                  * hapd0:send directly.
 714                  */
 715                 data = os_zalloc(sizeof(*data) + idata->data_len);
 716                 if (!data)
 717                         return 1;
 718
 719                 os_memcpy(data->src_addr, idata->src_hapd->own_addr, ETH_ALEN);
 720                 os_memcpy(data->dst_addr, idata->dst_addr, ETH_ALEN);
 721                 os_memcpy(data + 1, idata->data, idata->data_len);
 722                 data->data_len = idata->data_len;
 723                 data->oui_suffix = idata->oui_suffix;
 724
 725                 dl_list_add(&hapd->l2_oui_queue, &data->list);
 726
 727                 if (!eloop_is_timeout_registered(hostapd_oui_deliver_later,
 728                                                  hapd, NULL))
 729                         eloop_register_timeout(0, 0,
 730                                                hostapd_oui_deliver_later,
 731                                                hapd, NULL);
 732
 733                 return 1;
 734         }
 735
 736         return 0;
 737 }
 738
 739 #endif /* CONFIG_IEEE80211R_AP */
 740
 741
 742 static int hostapd_wpa_auth_send_oui(void *ctx, const u8 *dst, u8 oui_suffix,
 743                                      const u8 *data, size_t data_len)
 744 {
 745 #ifdef CONFIG_ETH_P_OUI
 746         struct hostapd_data *hapd = ctx;
 747         struct eth_p_oui_ctx *oui_ctx;
 748
 749 #ifdef CONFIG_IEEE80211R_AP
 750         if (hapd->iface->interfaces &&
 751             hapd->iface->interfaces->for_each_interface) {
 752                 struct wpa_auth_oui_iface_iter_data idata;
 753                 int res;
 754
 755                 idata.src_hapd = hapd;
 756                 idata.dst_addr = dst;
 757                 idata.data = data;
 758                 idata.data_len = data_len;
 759                 idata.oui_suffix = oui_suffix;
 760                 res = hapd->iface->interfaces->for_each_interface(
 761                         hapd->iface->interfaces, hostapd_wpa_auth_oui_iter,
 762                         &idata);
 763                 if (res == 1)
 764                         return data_len;
 765         }
 766 #endif /* CONFIG_IEEE80211R_AP */
 767
 768         oui_ctx = hostapd_wpa_get_oui(hapd, oui_suffix);
 769         if (!oui_ctx)
 770                 return -1;
 771
 772         return eth_p_oui_send(oui_ctx, hapd->own_addr, dst, data, data_len);
 773 #else /* CONFIG_ETH_P_OUI */
 774         return -1;
 775 #endif /* CONFIG_ETH_P_OUI */
 776 }
 777
 778
 779 #ifdef CONFIG_IEEE80211R_AP
 780
 781 static int hostapd_wpa_auth_send_ft_action(void *ctx, const u8 *dst,
 782                                            const u8 *data, size_t data_len)
 783 {
 784         struct hostapd_data *hapd = ctx;
 785         int res;
 786         struct ieee80211_mgmt *m;
 787         size_t mlen;
 788         struct sta_info *sta;
 789
 790         sta = ap_get_sta(hapd, dst);
 791         if (sta == NULL || sta->wpa_sm == NULL)
 792                 return -1;
 793
 794         m = os_zalloc(sizeof(*m) + data_len);
 795         if (m == NULL)
 796                 return -1;
 797         mlen = ((u8 *) &m->u - (u8 *) m) + data_len;
 798         m->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
 799                                         WLAN_FC_STYPE_ACTION);
 800         os_memcpy(m->da, dst, ETH_ALEN);
 801         os_memcpy(m->sa, hapd->own_addr, ETH_ALEN);
 802         os_memcpy(m->bssid, hapd->own_addr, ETH_ALEN);
 803         os_memcpy(&m->u, data, data_len);
 804
 805         res = hostapd_drv_send_mlme(hapd, (u8 *) m, mlen, 0);
 806         os_free(m);
 807         return res;
 808 }
 809
 810
 811 static struct wpa_state_machine *
 812 hostapd_wpa_auth_add_sta(void *ctx, const u8 *sta_addr)
 813 {
 814         struct hostapd_data *hapd = ctx;
 815         struct sta_info *sta;
 816
 817         if (hostapd_add_sta_node(hapd, sta_addr, WLAN_AUTH_FT) < 0)
 818                 return NULL;
 819
 820         sta = ap_sta_add(hapd, sta_addr);
 821         if (sta == NULL)
 822                 return NULL;
 823         if (sta->wpa_sm) {
 824                 sta->auth_alg = WLAN_AUTH_FT;
 825                 return sta->wpa_sm;
 826         }
 827
 828         sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr, NULL);
 829         if (sta->wpa_sm == NULL) {
 830                 ap_free_sta(hapd, sta);
 831                 return NULL;
 832         }
 833         sta->auth_alg = WLAN_AUTH_FT;
 834
 835         return sta->wpa_sm;
 836 }
 837
 838
 839 static int hostapd_wpa_auth_set_vlan(void *ctx, const u8 *sta_addr,
 840                                      struct vlan_description *vlan)
 841 {
 842         struct hostapd_data *hapd = ctx;
 843         struct sta_info *sta;
 844
 845         sta = ap_get_sta(hapd, sta_addr);
 846         if (!sta || !sta->wpa_sm)
 847                 return -1;
 848
 849         if (vlan->notempty &&
 850             !hostapd_vlan_valid(hapd->conf->vlan, vlan)) {
 851                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 852                                HOSTAPD_LEVEL_INFO,
 853                                "Invalid VLAN %d%s received from FT",
 854                                vlan->untagged, vlan->tagged[0] ? "+" : "");
 855                 return -1;
 856         }
 857
 858         if (ap_sta_set_vlan(hapd, sta, vlan) < 0)
 859                 return -1;
 860         /* Configure wpa_group for GTK but ignore error due to driver not
 861          * knowing this STA. */
 862         ap_sta_bind_vlan(hapd, sta);
 863
 864         if (sta->vlan_id)
 865                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 866                                HOSTAPD_LEVEL_INFO, "VLAN ID %d", sta->vlan_id);
 867
 868         return 0;
 869 }
 870
 871
 872 static int hostapd_wpa_auth_get_vlan(void *ctx, const u8 *sta_addr,
 873                                      struct vlan_description *vlan)
 874 {
 875         struct hostapd_data *hapd = ctx;
 876         struct sta_info *sta;
 877
 878         sta = ap_get_sta(hapd, sta_addr);
 879         if (!sta)
 880                 return -1;
 881
 882         if (sta->vlan_desc)
 883                 *vlan = *sta->vlan_desc;
 884         else
 885                 os_memset(vlan, 0, sizeof(*vlan));
 886
 887         return 0;
 888 }
 889
 890
 891 static int
 892 hostapd_wpa_auth_set_identity(void *ctx, const u8 *sta_addr,
 893                               const u8 *identity, size_t identity_len)
 894 {
 895         struct hostapd_data *hapd = ctx;
 896         struct sta_info *sta;
 897
 898         sta = ap_get_sta(hapd, sta_addr);
 899         if (!sta)
 900                 return -1;
 901
 902         os_free(sta->identity);
 903         sta->identity = NULL;
 904
 905         if (sta->eapol_sm) {
 906                 os_free(sta->eapol_sm->identity);
 907                 sta->eapol_sm->identity = NULL;
 908                 sta->eapol_sm->identity_len = 0;
 909         }
 910
 911         if (!identity_len)
 912                 return 0;
 913
 914         /* sta->identity is NULL terminated */
 915         sta->identity = os_zalloc(identity_len + 1);
 916         if (!sta->identity)
 917                 return -1;
 918         os_memcpy(sta->identity, identity, identity_len);
 919
 920         if (sta->eapol_sm) {
 921                 sta->eapol_sm->identity = os_zalloc(identity_len);
 922                 if (!sta->eapol_sm->identity)
 923                         return -1;
 924                 os_memcpy(sta->eapol_sm->identity, identity, identity_len);
 925                 sta->eapol_sm->identity_len = identity_len;
 926         }
 927
 928         return 0;
 929 }
 930
 931
 932 static size_t
 933 hostapd_wpa_auth_get_identity(void *ctx, const u8 *sta_addr, const u8 **buf)
 934 {
 935         struct hostapd_data *hapd = ctx;
 936         struct sta_info *sta;
 937         size_t len;
 938         char *identity;
 939
 940         sta = ap_get_sta(hapd, sta_addr);
 941         if (!sta)
 942                 return 0;
 943
 944         *buf = ieee802_1x_get_identity(sta->eapol_sm, &len);
 945         if (*buf && len)
 946                 return len;
 947
 948         if (!sta->identity) {
 949                 *buf = NULL;
 950                 return 0;
 951         }
 952
 953         identity = sta->identity;
 954         len = os_strlen(identity);
 955         *buf = (u8 *) identity;
 956
 957         return len;
 958 }
 959
 960
 961 static int
 962 hostapd_wpa_auth_set_radius_cui(void *ctx, const u8 *sta_addr,
 963                                 const u8 *radius_cui, size_t radius_cui_len)
 964 {
 965         struct hostapd_data *hapd = ctx;
 966         struct sta_info *sta;
 967
 968         sta = ap_get_sta(hapd, sta_addr);
 969         if (!sta)
 970                 return -1;
 971
 972         os_free(sta->radius_cui);
 973         sta->radius_cui = NULL;
 974
 975         if (sta->eapol_sm) {
 976                 wpabuf_free(sta->eapol_sm->radius_cui);
 977                 sta->eapol_sm->radius_cui = NULL;
 978         }
 979
 980         if (!radius_cui)
 981                 return 0;
 982
 983         /* sta->radius_cui is NULL terminated */
 984         sta->radius_cui = os_zalloc(radius_cui_len + 1);
 985         if (!sta->radius_cui)
 986                 return -1;
 987         os_memcpy(sta->radius_cui, radius_cui, radius_cui_len);
 988
 989         if (sta->eapol_sm) {
 990                 sta->eapol_sm->radius_cui = wpabuf_alloc_copy(radius_cui,
 991                                                               radius_cui_len);
 992                 if (!sta->eapol_sm->radius_cui)
 993                         return -1;
 994         }
 995
 996         return 0;
 997 }
 998
 999
1000 static size_t
1001 hostapd_wpa_auth_get_radius_cui(void *ctx, const u8 *sta_addr, const u8 **buf)
1002 {
1003         struct hostapd_data *hapd = ctx;
1004         struct sta_info *sta;
1005         struct wpabuf *b;
1006         size_t len;
1007         char *radius_cui;
1008
1009         sta = ap_get_sta(hapd, sta_addr);
1010         if (!sta)
1011                 return 0;
1012
1013         b = ieee802_1x_get_radius_cui(sta->eapol_sm);
1014         if (b) {
1015                 len = wpabuf_len(b);
1016                 *buf = wpabuf_head(b);
1017                 return len;
1018         }
1019
1020         if (!sta->radius_cui) {
1021                 *buf = NULL;
1022                 return 0;
1023         }
1024
1025         radius_cui = sta->radius_cui;
1026         len = os_strlen(radius_cui);
1027         *buf = (u8 *) radius_cui;
1028
1029         return len;
1030 }
1031
1032
1033 static void hostapd_wpa_auth_set_session_timeout(void *ctx, const u8 *sta_addr,
1034                                                  int session_timeout)
1035 {
1036         struct hostapd_data *hapd = ctx;
1037         struct sta_info *sta;
1038
1039         sta = ap_get_sta(hapd, sta_addr);
1040         if (!sta)
1041                 return;
1042
1043         if (session_timeout) {
1044                 os_get_reltime(&sta->session_timeout);
1045                 sta->session_timeout.sec += session_timeout;
1046                 sta->session_timeout_set = 1;
1047                 ap_sta_session_timeout(hapd, sta, session_timeout);
1048         } else {
1049                 sta->session_timeout_set = 0;
1050                 ap_sta_no_session_timeout(hapd, sta);
1051         }
1052 }
1053
1054
1055 static int hostapd_wpa_auth_get_session_timeout(void *ctx, const u8 *sta_addr)
1056 {
1057         struct hostapd_data *hapd = ctx;
1058         struct sta_info *sta;
1059         struct os_reltime now, remaining;
1060
1061         sta = ap_get_sta(hapd, sta_addr);
1062         if (!sta || !sta->session_timeout_set)
1063                 return 0;
1064
1065         os_get_reltime(&now);
1066         if (os_reltime_before(&sta->session_timeout, &now)) {
1067                 /* already expired, return >0 as timeout was set */
1068                 return 1;
1069         }
1070
1071         os_reltime_sub(&sta->session_timeout, &now, &remaining);
1072
1073         return (remaining.sec > 0) ? remaining.sec : 1;
1074 }
1075
1076
1077 static void hostapd_rrb_receive(void *ctx, const u8 *src_addr, const u8 *buf,
1078                                 size_t len)
1079 {
1080         struct hostapd_data *hapd = ctx;
1081         struct l2_ethhdr *ethhdr;
1082         if (len < sizeof(*ethhdr))
1083                 return;
1084         ethhdr = (struct l2_ethhdr *) buf;
1085         wpa_printf(MSG_DEBUG, "FT: RRB received packet " MACSTR " -> "
1086                    MACSTR, MAC2STR(ethhdr->h_source), MAC2STR(ethhdr->h_dest));
1087         if (!is_multicast_ether_addr(ethhdr->h_dest) &&
1088             os_memcmp(hapd->own_addr, ethhdr->h_dest, ETH_ALEN) != 0)
1089                 return;
1090         wpa_ft_rrb_rx(hapd->wpa_auth, ethhdr->h_source, buf + sizeof(*ethhdr),
1091                       len - sizeof(*ethhdr));
1092 }
1093
1094
1095 static void hostapd_rrb_oui_receive(void *ctx, const u8 *src_addr,
1096                                     const u8 *dst_addr, u8 oui_suffix,
1097                                     const u8 *buf, size_t len)
1098 {
1099         struct hostapd_data *hapd = ctx;
1100
1101         wpa_printf(MSG_DEBUG, "FT: RRB received packet " MACSTR " -> "
1102                    MACSTR, MAC2STR(src_addr), MAC2STR(dst_addr));
1103         if (!is_multicast_ether_addr(dst_addr) &&
1104             os_memcmp(hapd->own_addr, dst_addr, ETH_ALEN) != 0)
1105                 return;
1106         wpa_ft_rrb_oui_rx(hapd->wpa_auth, src_addr, dst_addr, oui_suffix, buf,
1107                           len);
1108 }
1109
1110
1111 static int hostapd_wpa_auth_add_tspec(void *ctx, const u8 *sta_addr,
1112                                       u8 *tspec_ie, size_t tspec_ielen)
1113 {
1114         struct hostapd_data *hapd = ctx;
1115         return hostapd_add_tspec(hapd, sta_addr, tspec_ie, tspec_ielen);
1116 }
1117
1118
1119
1120 static int hostapd_wpa_register_ft_oui(struct hostapd_data *hapd,
1121                                        const char *ft_iface)
1122 {
1123         hapd->oui_pull = eth_p_oui_register(hapd, ft_iface,
1124                                             FT_PACKET_R0KH_R1KH_PULL,
1125                                             hostapd_rrb_oui_receive, hapd);
1126         if (!hapd->oui_pull)
1127                 return -1;
1128
1129         hapd->oui_resp = eth_p_oui_register(hapd, ft_iface,
1130                                             FT_PACKET_R0KH_R1KH_RESP,
1131                                             hostapd_rrb_oui_receive, hapd);
1132         if (!hapd->oui_resp)
1133                 return -1;
1134
1135         hapd->oui_push = eth_p_oui_register(hapd, ft_iface,
1136                                             FT_PACKET_R0KH_R1KH_PUSH,
1137                                             hostapd_rrb_oui_receive, hapd);
1138         if (!hapd->oui_push)
1139                 return -1;
1140
1141         hapd->oui_sreq = eth_p_oui_register(hapd, ft_iface,
1142                                             FT_PACKET_R0KH_R1KH_SEQ_REQ,
1143                                             hostapd_rrb_oui_receive, hapd);
1144         if (!hapd->oui_sreq)
1145                 return -1;
1146
1147         hapd->oui_sresp = eth_p_oui_register(hapd, ft_iface,
1148                                              FT_PACKET_R0KH_R1KH_SEQ_RESP,
1149                                              hostapd_rrb_oui_receive, hapd);
1150         if (!hapd->oui_sresp)
1151                 return -1;
1152
1153         return 0;
1154 }
1155
1156
1157 static void hostapd_wpa_unregister_ft_oui(struct hostapd_data *hapd)
1158 {
1159         eth_p_oui_unregister(hapd->oui_pull);
1160         hapd->oui_pull = NULL;
1161         eth_p_oui_unregister(hapd->oui_resp);
1162         hapd->oui_resp = NULL;
1163         eth_p_oui_unregister(hapd->oui_push);
1164         hapd->oui_push = NULL;
1165         eth_p_oui_unregister(hapd->oui_sreq);
1166         hapd->oui_sreq = NULL;
1167         eth_p_oui_unregister(hapd->oui_sresp);
1168         hapd->oui_sresp = NULL;
1169 }
1170 #endif /* CONFIG_IEEE80211R_AP */
1171
1172
1173 int hostapd_setup_wpa(struct hostapd_data *hapd)
1174 {
1175         struct wpa_auth_config _conf;
1176         static const struct wpa_auth_callbacks cb = {
1177                 .logger = hostapd_wpa_auth_logger,
1178                 .disconnect = hostapd_wpa_auth_disconnect,
1179                 .mic_failure_report = hostapd_wpa_auth_mic_failure_report,
1180                 .psk_failure_report = hostapd_wpa_auth_psk_failure_report,
1181                 .set_eapol = hostapd_wpa_auth_set_eapol,
1182                 .get_eapol = hostapd_wpa_auth_get_eapol,
1183                 .get_psk = hostapd_wpa_auth_get_psk,
1184                 .get_msk = hostapd_wpa_auth_get_msk,
1185                 .set_key = hostapd_wpa_auth_set_key,
1186                 .get_seqnum = hostapd_wpa_auth_get_seqnum,
1187                 .send_eapol = hostapd_wpa_auth_send_eapol,
1188                 .for_each_sta = hostapd_wpa_auth_for_each_sta,
1189                 .for_each_auth = hostapd_wpa_auth_for_each_auth,
1190                 .send_ether = hostapd_wpa_auth_send_ether,
1191                 .send_oui = hostapd_wpa_auth_send_oui,
1192 #ifdef CONFIG_IEEE80211R_AP
1193                 .send_ft_action = hostapd_wpa_auth_send_ft_action,
1194                 .add_sta = hostapd_wpa_auth_add_sta,
1195                 .add_tspec = hostapd_wpa_auth_add_tspec,
1196                 .set_vlan = hostapd_wpa_auth_set_vlan,
1197                 .get_vlan = hostapd_wpa_auth_get_vlan,
1198                 .set_identity = hostapd_wpa_auth_set_identity,
1199                 .get_identity = hostapd_wpa_auth_get_identity,
1200                 .set_radius_cui = hostapd_wpa_auth_set_radius_cui,
1201                 .get_radius_cui = hostapd_wpa_auth_get_radius_cui,
1202                 .set_session_timeout = hostapd_wpa_auth_set_session_timeout,
1203                 .get_session_timeout = hostapd_wpa_auth_get_session_timeout,
1204 #endif /* CONFIG_IEEE80211R_AP */
1205         };
1206         const u8 *wpa_ie;
1207         size_t wpa_ie_len;
1208
1209         hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &_conf);
1210         if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_EAPOL_TX_STATUS)
1211                 _conf.tx_status = 1;
1212         if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_MLME)
1213                 _conf.ap_mlme = 1;
1214         hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb, hapd);
1215         if (hapd->wpa_auth == NULL) {
1216                 wpa_printf(MSG_ERROR, "WPA initialization failed.");
1217                 return -1;
1218         }
1219
1220         if (hostapd_set_privacy(hapd, 1)) {
1221                 wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked "
1222                            "for interface %s", hapd->conf->iface);
1223                 return -1;
1224         }
1225
1226         wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len);
1227         if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len)) {
1228                 wpa_printf(MSG_ERROR, "Failed to configure WPA IE for "
1229                            "the kernel driver.");
1230                 return -1;
1231         }
1232
1233         if (rsn_preauth_iface_init(hapd)) {
1234                 wpa_printf(MSG_ERROR, "Initialization of RSN "
1235                            "pre-authentication failed.");
1236                 return -1;
1237         }
1238
1239 #ifdef CONFIG_IEEE80211R_AP
1240         if (!hostapd_drv_none(hapd) &&
1241             wpa_key_mgmt_ft(hapd->conf->wpa_key_mgmt)) {
1242                 const char *ft_iface;
1243
1244                 ft_iface = hapd->conf->bridge[0] ? hapd->conf->bridge :
1245                            hapd->conf->iface;
1246                 hapd->l2 = l2_packet_init(ft_iface, NULL, ETH_P_RRB,
1247                                           hostapd_rrb_receive, hapd, 1);
1248                 if (hapd->l2 == NULL &&
1249                     (hapd->driver == NULL ||
1250                      hapd->driver->send_ether == NULL)) {
1251                         wpa_printf(MSG_ERROR, "Failed to open l2_packet "
1252                                    "interface");
1253                         return -1;
1254                 }
1255
1256                 if (hostapd_wpa_register_ft_oui(hapd, ft_iface)) {
1257                         wpa_printf(MSG_ERROR,
1258                                    "Failed to open ETH_P_OUI interface");
1259                         return -1;
1260                 }
1261         }
1262 #endif /* CONFIG_IEEE80211R_AP */
1263
1264         return 0;
1265
1266 }
1267
1268
1269 void hostapd_reconfig_wpa(struct hostapd_data *hapd)
1270 {
1271         struct wpa_auth_config wpa_auth_conf;
1272         hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &wpa_auth_conf);
1273         wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf);
1274 }
1275
1276
1277 void hostapd_deinit_wpa(struct hostapd_data *hapd)
1278 {
1279         ieee80211_tkip_countermeasures_deinit(hapd);
1280         rsn_preauth_iface_deinit(hapd);
1281         if (hapd->wpa_auth) {
1282                 wpa_deinit(hapd->wpa_auth);
1283                 hapd->wpa_auth = NULL;
1284
1285                 if (hapd->drv_priv && hostapd_set_privacy(hapd, 0)) {
1286                         wpa_printf(MSG_DEBUG, "Could not disable "
1287                                    "PrivacyInvoked for interface %s",
1288                                    hapd->conf->iface);
1289                 }
1290
1291                 if (hapd->drv_priv &&
1292                     hostapd_set_generic_elem(hapd, (u8 *) "", 0)) {
1293                         wpa_printf(MSG_DEBUG, "Could not remove generic "
1294                                    "information element from interface %s",
1295                                    hapd->conf->iface);
1296                 }
1297         }
1298         ieee802_1x_deinit(hapd);
1299
1300 #ifdef CONFIG_IEEE80211R_AP
1301         eloop_cancel_timeout(hostapd_wpa_ft_rrb_rx_later, hapd, ELOOP_ALL_CTX);
1302         hostapd_wpa_ft_rrb_rx_later(hapd, NULL); /* flush without delivering */
1303         eloop_cancel_timeout(hostapd_oui_deliver_later, hapd, ELOOP_ALL_CTX);
1304         hostapd_oui_deliver_later(hapd, NULL); /* flush without delivering */
1305         l2_packet_deinit(hapd->l2);
1306         hapd->l2 = NULL;
1307         hostapd_wpa_unregister_ft_oui(hapd);
1308 #endif /* CONFIG_IEEE80211R_AP */
1309 }