src/ap/wps_hostapd.c

   1 /*
   2  * hostapd / WPS integration
   3  * Copyright (c) 2008-2012, 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/uuid.h"
  14 #include "common/wpa_ctrl.h"
  15 #include "common/ieee802_11_defs.h"
  16 #include "common/ieee802_11_common.h"
  17 #include "eapol_auth/eapol_auth_sm.h"
  18 #include "eapol_auth/eapol_auth_sm_i.h"
  19 #include "wps/wps.h"
  20 #include "wps/wps_defs.h"
  21 #include "wps/wps_dev_attr.h"
  22 #include "wps/wps_attr_parse.h"
  23 #include "hostapd.h"
  24 #include "ap_config.h"
  25 #include "ap_drv_ops.h"
  26 #include "beacon.h"
  27 #include "sta_info.h"
  28 #include "wps_hostapd.h"
  29
  30
  31 #ifdef CONFIG_WPS_UPNP
  32 #include "wps/wps_upnp.h"
  33 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
  34                                  struct wps_context *wps);
  35 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd);
  36 #endif /* CONFIG_WPS_UPNP */
  37
  38 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da,
  39                                     const u8 *bssid,
  40                                     const u8 *ie, size_t ie_len,
  41                                     int ssi_signal);
  42 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
  43
  44
  45 struct wps_for_each_data {
  46         int (*func)(struct hostapd_data *h, void *ctx);
  47         void *ctx;
  48 };
  49
  50
  51 static int wps_for_each(struct hostapd_iface *iface, void *ctx)
  52 {
  53         struct wps_for_each_data *data = ctx;
  54         size_t j;
  55
  56         if (iface == NULL)
  57                 return 0;
  58         for (j = 0; j < iface->num_bss; j++) {
  59                 struct hostapd_data *hapd = iface->bss[j];
  60                 int ret = data->func(hapd, data->ctx);
  61                 if (ret)
  62                         return ret;
  63         }
  64
  65         return 0;
  66 }
  67
  68
  69 static int hostapd_wps_for_each(struct hostapd_data *hapd,
  70                                 int (*func)(struct hostapd_data *h, void *ctx),
  71                                 void *ctx)
  72 {
  73         struct hostapd_iface *iface = hapd->iface;
  74         struct wps_for_each_data data;
  75         data.func = func;
  76         data.ctx = ctx;
  77         if (iface->interfaces == NULL ||
  78             iface->interfaces->for_each_interface == NULL)
  79                 return wps_for_each(iface, &data);
  80         return iface->interfaces->for_each_interface(iface->interfaces,
  81                                                      wps_for_each, &data);
  82 }
  83
  84
  85 static int hostapd_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
  86                                   size_t psk_len)
  87 {
  88         struct hostapd_data *hapd = ctx;
  89         struct hostapd_wpa_psk *p;
  90         struct hostapd_ssid *ssid = &hapd->conf->ssid;
  91
  92         wpa_printf(MSG_DEBUG, "Received new WPA/WPA2-PSK from WPS for STA "
  93                    MACSTR, MAC2STR(mac_addr));
  94         wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
  95
  96         if (psk_len != PMK_LEN) {
  97                 wpa_printf(MSG_DEBUG, "Unexpected PSK length %lu",
  98                            (unsigned long) psk_len);
  99                 return -1;
 100         }
 101
 102         /* Add the new PSK to runtime PSK list */
 103         p = os_zalloc(sizeof(*p));
 104         if (p == NULL)
 105                 return -1;
 106         os_memcpy(p->addr, mac_addr, ETH_ALEN);
 107         os_memcpy(p->psk, psk, PMK_LEN);
 108
 109         p->next = ssid->wpa_psk;
 110         ssid->wpa_psk = p;
 111
 112         if (ssid->wpa_psk_file) {
 113                 FILE *f;
 114                 char hex[PMK_LEN * 2 + 1];
 115                 /* Add the new PSK to PSK list file */
 116                 f = fopen(ssid->wpa_psk_file, "a");
 117                 if (f == NULL) {
 118                         wpa_printf(MSG_DEBUG, "Failed to add the PSK to "
 119                                    "'%s'", ssid->wpa_psk_file);
 120                         return -1;
 121                 }
 122
 123                 wpa_snprintf_hex(hex, sizeof(hex), psk, psk_len);
 124                 fprintf(f, MACSTR " %s\n", MAC2STR(mac_addr), hex);
 125                 fclose(f);
 126         }
 127
 128         return 0;
 129 }
 130
 131
 132 static int hostapd_wps_set_ie_cb(void *ctx, struct wpabuf *beacon_ie,
 133                                  struct wpabuf *probe_resp_ie)
 134 {
 135         struct hostapd_data *hapd = ctx;
 136         wpabuf_free(hapd->wps_beacon_ie);
 137         hapd->wps_beacon_ie = beacon_ie;
 138         wpabuf_free(hapd->wps_probe_resp_ie);
 139         hapd->wps_probe_resp_ie = probe_resp_ie;
 140         if (hapd->beacon_set_done)
 141                 ieee802_11_set_beacon(hapd);
 142         return hostapd_set_ap_wps_ie(hapd);
 143 }
 144
 145
 146 static void hostapd_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
 147                                       const struct wps_device_data *dev)
 148 {
 149         struct hostapd_data *hapd = ctx;
 150         char uuid[40], txt[400];
 151         int len;
 152         char devtype[WPS_DEV_TYPE_BUFSIZE];
 153         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 154                 return;
 155         wpa_printf(MSG_DEBUG, "WPS: PIN needed for E-UUID %s", uuid);
 156         len = os_snprintf(txt, sizeof(txt), WPS_EVENT_PIN_NEEDED
 157                           "%s " MACSTR " [%s|%s|%s|%s|%s|%s]",
 158                           uuid, MAC2STR(dev->mac_addr), dev->device_name,
 159                           dev->manufacturer, dev->model_name,
 160                           dev->model_number, dev->serial_number,
 161                           wps_dev_type_bin2str(dev->pri_dev_type, devtype,
 162                                                sizeof(devtype)));
 163         if (len > 0 && len < (int) sizeof(txt))
 164                 wpa_msg(hapd->msg_ctx, MSG_INFO, "%s", txt);
 165
 166         if (hapd->conf->wps_pin_requests) {
 167                 FILE *f;
 168                 struct os_time t;
 169                 f = fopen(hapd->conf->wps_pin_requests, "a");
 170                 if (f == NULL)
 171                         return;
 172                 os_get_time(&t);
 173                 fprintf(f, "%ld\t%s\t" MACSTR "\t%s\t%s\t%s\t%s\t%s"
 174                         "\t%s\n",
 175                         t.sec, uuid, MAC2STR(dev->mac_addr), dev->device_name,
 176                         dev->manufacturer, dev->model_name, dev->model_number,
 177                         dev->serial_number,
 178                         wps_dev_type_bin2str(dev->pri_dev_type, devtype,
 179                                              sizeof(devtype)));
 180                 fclose(f);
 181         }
 182 }
 183
 184
 185 struct wps_stop_reg_data {
 186         struct hostapd_data *current_hapd;
 187         const u8 *uuid_e;
 188         const u8 *dev_pw;
 189         size_t dev_pw_len;
 190 };
 191
 192 static int wps_stop_registrar(struct hostapd_data *hapd, void *ctx)
 193 {
 194         struct wps_stop_reg_data *data = ctx;
 195         if (hapd != data->current_hapd && hapd->wps != NULL)
 196                 wps_registrar_complete(hapd->wps->registrar, data->uuid_e,
 197                                        data->dev_pw, data->dev_pw_len);
 198         return 0;
 199 }
 200
 201
 202 static void hostapd_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 203                                        const u8 *uuid_e, const u8 *dev_pw,
 204                                        size_t dev_pw_len)
 205 {
 206         struct hostapd_data *hapd = ctx;
 207         char uuid[40];
 208         struct wps_stop_reg_data data;
 209         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 210                 return;
 211         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s",
 212                 MAC2STR(mac_addr), uuid);
 213         if (hapd->wps_reg_success_cb)
 214                 hapd->wps_reg_success_cb(hapd->wps_reg_success_cb_ctx,
 215                                          mac_addr, uuid_e);
 216         data.current_hapd = hapd;
 217         data.uuid_e = uuid_e;
 218         data.dev_pw = dev_pw;
 219         data.dev_pw_len = dev_pw_len;
 220         hostapd_wps_for_each(hapd, wps_stop_registrar, &data);
 221 }
 222
 223
 224 static void hostapd_wps_enrollee_seen_cb(void *ctx, const u8 *addr,
 225                                          const u8 *uuid_e,
 226                                          const u8 *pri_dev_type,
 227                                          u16 config_methods,
 228                                          u16 dev_password_id, u8 request_type,
 229                                          const char *dev_name)
 230 {
 231         struct hostapd_data *hapd = ctx;
 232         char uuid[40];
 233         char devtype[WPS_DEV_TYPE_BUFSIZE];
 234         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 235                 return;
 236         if (dev_name == NULL)
 237                 dev_name = "";
 238         wpa_msg_ctrl(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ENROLLEE_SEEN MACSTR
 239                      " %s %s 0x%x %u %u [%s]",
 240                      MAC2STR(addr), uuid,
 241                      wps_dev_type_bin2str(pri_dev_type, devtype,
 242                                           sizeof(devtype)),
 243                      config_methods, dev_password_id, request_type, dev_name);
 244 }
 245
 246
 247 static int str_starts(const char *str, const char *start)
 248 {
 249         return os_strncmp(str, start, os_strlen(start)) == 0;
 250 }
 251
 252
 253 static void wps_reload_config(void *eloop_data, void *user_ctx)
 254 {
 255         struct hostapd_iface *iface = eloop_data;
 256
 257         wpa_printf(MSG_DEBUG, "WPS: Reload configuration data");
 258         if (iface->interfaces == NULL ||
 259             iface->interfaces->reload_config(iface) < 0) {
 260                 wpa_printf(MSG_WARNING, "WPS: Failed to reload the updated "
 261                            "configuration");
 262         }
 263 }
 264
 265
 266 static void hapd_new_ap_event(struct hostapd_data *hapd, const u8 *attr,
 267                               size_t attr_len)
 268 {
 269         size_t blen = attr_len * 2 + 1;
 270         char *buf = os_malloc(blen);
 271         if (buf) {
 272                 wpa_snprintf_hex(buf, blen, attr, attr_len);
 273                 wpa_msg(hapd->msg_ctx, MSG_INFO,
 274                         WPS_EVENT_NEW_AP_SETTINGS "%s", buf);
 275                 os_free(buf);
 276         }
 277 }
 278
 279
 280 static int hapd_wps_reconfig_in_memory(struct hostapd_data *hapd,
 281                                        const struct wps_credential *cred)
 282 {
 283         struct hostapd_bss_config *bss = hapd->conf;
 284
 285         wpa_printf(MSG_DEBUG, "WPS: Updating in-memory configuration");
 286
 287         bss->wps_state = 2;
 288         if (cred->ssid_len <= HOSTAPD_MAX_SSID_LEN) {
 289                 os_memcpy(bss->ssid.ssid, cred->ssid, cred->ssid_len);
 290                 bss->ssid.ssid_len = cred->ssid_len;
 291                 bss->ssid.ssid_set = 1;
 292         }
 293
 294         if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
 295             (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
 296                 bss->wpa = 3;
 297         else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
 298                 bss->wpa = 2;
 299         else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
 300                 bss->wpa = 1;
 301         else
 302                 bss->wpa = 0;
 303
 304         if (bss->wpa) {
 305                 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA))
 306                         bss->wpa_key_mgmt = WPA_KEY_MGMT_IEEE8021X;
 307                 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK))
 308                         bss->wpa_key_mgmt = WPA_KEY_MGMT_PSK;
 309
 310                 bss->wpa_pairwise = 0;
 311                 if (cred->encr_type & WPS_ENCR_AES)
 312                         bss->wpa_pairwise |= WPA_CIPHER_CCMP;
 313                 if (cred->encr_type & WPS_ENCR_TKIP)
 314                         bss->wpa_pairwise |= WPA_CIPHER_TKIP;
 315                 bss->rsn_pairwise = bss->wpa_pairwise;
 316                 bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa,
 317                                                             bss->wpa_pairwise,
 318                                                             bss->rsn_pairwise);
 319
 320                 if (cred->key_len >= 8 && cred->key_len < 64) {
 321                         os_free(bss->ssid.wpa_passphrase);
 322                         bss->ssid.wpa_passphrase = os_zalloc(cred->key_len + 1);
 323                         if (bss->ssid.wpa_passphrase)
 324                                 os_memcpy(bss->ssid.wpa_passphrase, cred->key,
 325                                           cred->key_len);
 326                         os_free(bss->ssid.wpa_psk);
 327                         bss->ssid.wpa_psk = NULL;
 328                 } else if (cred->key_len == 64) {
 329                         os_free(bss->ssid.wpa_psk);
 330                         bss->ssid.wpa_psk =
 331                                 os_zalloc(sizeof(struct hostapd_wpa_psk));
 332                         if (bss->ssid.wpa_psk &&
 333                             hexstr2bin((const char *) cred->key,
 334                                        bss->ssid.wpa_psk->psk, PMK_LEN) == 0) {
 335                                 bss->ssid.wpa_psk->group = 1;
 336                                 os_free(bss->ssid.wpa_passphrase);
 337                                 bss->ssid.wpa_passphrase = NULL;
 338                         }
 339                 }
 340                 bss->auth_algs = 1;
 341         } else {
 342                 if ((cred->auth_type & WPS_AUTH_OPEN) &&
 343                     (cred->auth_type & WPS_AUTH_SHARED))
 344                         bss->auth_algs = 3;
 345                 else if (cred->auth_type & WPS_AUTH_SHARED)
 346                         bss->auth_algs = 2;
 347                 else
 348                         bss->auth_algs = 1;
 349                 if (cred->encr_type & WPS_ENCR_WEP && cred->key_idx > 0 &&
 350                     cred->key_idx <= 4) {
 351                         struct hostapd_wep_keys *wep = &bss->ssid.wep;
 352                         int idx = cred->key_idx;
 353                         if (idx)
 354                                 idx--;
 355                         wep->idx = idx;
 356                         if (cred->key_len == 10 || cred->key_len == 26) {
 357                                 os_free(wep->key[idx]);
 358                                 wep->key[idx] = os_malloc(cred->key_len / 2);
 359                                 if (wep->key[idx] == NULL ||
 360                                     hexstr2bin((const char *) cred->key,
 361                                                wep->key[idx],
 362                                                cred->key_len / 2))
 363                                         return -1;
 364                                 wep->len[idx] = cred->key_len / 2;
 365                         } else {
 366                                 os_free(wep->key[idx]);
 367                                 wep->key[idx] = os_malloc(cred->key_len);
 368                                 if (wep->key[idx] == NULL)
 369                                         return -1;
 370                                 os_memcpy(wep->key[idx], cred->key,
 371                                           cred->key_len);
 372                                 wep->len[idx] = cred->key_len;
 373                         }
 374                         wep->keys_set = 1;
 375                 }
 376         }
 377
 378         /* Schedule configuration reload after short period of time to allow
 379          * EAP-WSC to be finished.
 380          */
 381         eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
 382                                NULL);
 383
 384         return 0;
 385 }
 386
 387
 388 static int hapd_wps_cred_cb(struct hostapd_data *hapd, void *ctx)
 389 {
 390         const struct wps_credential *cred = ctx;
 391         FILE *oconf, *nconf;
 392         size_t len, i;
 393         char *tmp_fname;
 394         char buf[1024];
 395         int multi_bss;
 396         int wpa;
 397
 398         if (hapd->wps == NULL)
 399                 return 0;
 400
 401         wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
 402                         cred->cred_attr, cred->cred_attr_len);
 403
 404         wpa_printf(MSG_DEBUG, "WPS: Received new AP Settings");
 405         wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
 406         wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
 407                    cred->auth_type);
 408         wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
 409         wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
 410         wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
 411                         cred->key, cred->key_len);
 412         wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
 413                    MAC2STR(cred->mac_addr));
 414
 415         if ((hapd->conf->wps_cred_processing == 1 ||
 416              hapd->conf->wps_cred_processing == 2) && cred->cred_attr) {
 417                 hapd_new_ap_event(hapd, cred->cred_attr, cred->cred_attr_len);
 418         } else if (hapd->conf->wps_cred_processing == 1 ||
 419                    hapd->conf->wps_cred_processing == 2) {
 420                 struct wpabuf *attr;
 421                 attr = wpabuf_alloc(200);
 422                 if (attr && wps_build_credential_wrap(attr, cred) == 0)
 423                         hapd_new_ap_event(hapd, wpabuf_head_u8(attr),
 424                                           wpabuf_len(attr));
 425                 wpabuf_free(attr);
 426         } else
 427                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS);
 428
 429         if (hapd->conf->wps_cred_processing == 1)
 430                 return 0;
 431
 432         os_memcpy(hapd->wps->ssid, cred->ssid, cred->ssid_len);
 433         hapd->wps->ssid_len = cred->ssid_len;
 434         hapd->wps->encr_types = cred->encr_type;
 435         hapd->wps->auth_types = cred->auth_type;
 436         if (cred->key_len == 0) {
 437                 os_free(hapd->wps->network_key);
 438                 hapd->wps->network_key = NULL;
 439                 hapd->wps->network_key_len = 0;
 440         } else {
 441                 if (hapd->wps->network_key == NULL ||
 442                     hapd->wps->network_key_len < cred->key_len) {
 443                         hapd->wps->network_key_len = 0;
 444                         os_free(hapd->wps->network_key);
 445                         hapd->wps->network_key = os_malloc(cred->key_len);
 446                         if (hapd->wps->network_key == NULL)
 447                                 return -1;
 448                 }
 449                 hapd->wps->network_key_len = cred->key_len;
 450                 os_memcpy(hapd->wps->network_key, cred->key, cred->key_len);
 451         }
 452         hapd->wps->wps_state = WPS_STATE_CONFIGURED;
 453
 454         if (hapd->iface->config_fname == NULL)
 455                 return hapd_wps_reconfig_in_memory(hapd, cred);
 456         len = os_strlen(hapd->iface->config_fname) + 5;
 457         tmp_fname = os_malloc(len);
 458         if (tmp_fname == NULL)
 459                 return -1;
 460         os_snprintf(tmp_fname, len, "%s-new", hapd->iface->config_fname);
 461
 462         oconf = fopen(hapd->iface->config_fname, "r");
 463         if (oconf == NULL) {
 464                 wpa_printf(MSG_WARNING, "WPS: Could not open current "
 465                            "configuration file");
 466                 os_free(tmp_fname);
 467                 return -1;
 468         }
 469
 470         nconf = fopen(tmp_fname, "w");
 471         if (nconf == NULL) {
 472                 wpa_printf(MSG_WARNING, "WPS: Could not write updated "
 473                            "configuration file");
 474                 os_free(tmp_fname);
 475                 fclose(oconf);
 476                 return -1;
 477         }
 478
 479         fprintf(nconf, "# WPS configuration - START\n");
 480
 481         fprintf(nconf, "wps_state=2\n");
 482
 483         if (is_hex(cred->ssid, cred->ssid_len)) {
 484                 fprintf(nconf, "ssid2=");
 485                 for (i = 0; i < cred->ssid_len; i++)
 486                         fprintf(nconf, "%02x", cred->ssid[i]);
 487                 fprintf(nconf, "\n");
 488         } else {
 489                 fprintf(nconf, "ssid=");
 490                 for (i = 0; i < cred->ssid_len; i++)
 491                         fputc(cred->ssid[i], nconf);
 492                 fprintf(nconf, "\n");
 493         }
 494
 495         if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
 496             (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
 497                 wpa = 3;
 498         else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
 499                 wpa = 2;
 500         else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
 501                 wpa = 1;
 502         else
 503                 wpa = 0;
 504
 505         if (wpa) {
 506                 char *prefix;
 507                 fprintf(nconf, "wpa=%d\n", wpa);
 508
 509                 fprintf(nconf, "wpa_key_mgmt=");
 510                 prefix = "";
 511                 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA)) {
 512                         fprintf(nconf, "WPA-EAP");
 513                         prefix = " ";
 514                 }
 515                 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK))
 516                         fprintf(nconf, "%sWPA-PSK", prefix);
 517                 fprintf(nconf, "\n");
 518
 519                 fprintf(nconf, "wpa_pairwise=");
 520                 prefix = "";
 521                 if (cred->encr_type & WPS_ENCR_AES) {
 522                         fprintf(nconf, "CCMP");
 523                         prefix = " ";
 524                 }
 525                 if (cred->encr_type & WPS_ENCR_TKIP) {
 526                         fprintf(nconf, "%sTKIP", prefix);
 527                 }
 528                 fprintf(nconf, "\n");
 529
 530                 if (cred->key_len >= 8 && cred->key_len < 64) {
 531                         fprintf(nconf, "wpa_passphrase=");
 532                         for (i = 0; i < cred->key_len; i++)
 533                                 fputc(cred->key[i], nconf);
 534                         fprintf(nconf, "\n");
 535                 } else if (cred->key_len == 64) {
 536                         fprintf(nconf, "wpa_psk=");
 537                         for (i = 0; i < cred->key_len; i++)
 538                                 fputc(cred->key[i], nconf);
 539                         fprintf(nconf, "\n");
 540                 } else {
 541                         wpa_printf(MSG_WARNING, "WPS: Invalid key length %lu "
 542                                    "for WPA/WPA2",
 543                                    (unsigned long) cred->key_len);
 544                 }
 545
 546                 fprintf(nconf, "auth_algs=1\n");
 547         } else {
 548                 if ((cred->auth_type & WPS_AUTH_OPEN) &&
 549                     (cred->auth_type & WPS_AUTH_SHARED))
 550                         fprintf(nconf, "auth_algs=3\n");
 551                 else if (cred->auth_type & WPS_AUTH_SHARED)
 552                         fprintf(nconf, "auth_algs=2\n");
 553                 else
 554                         fprintf(nconf, "auth_algs=1\n");
 555
 556                 if (cred->encr_type & WPS_ENCR_WEP && cred->key_idx <= 4) {
 557                         int key_idx = cred->key_idx;
 558                         if (key_idx)
 559                                 key_idx--;
 560                         fprintf(nconf, "wep_default_key=%d\n", key_idx);
 561                         fprintf(nconf, "wep_key%d=", key_idx);
 562                         if (cred->key_len == 10 || cred->key_len == 26) {
 563                                 /* WEP key as a hex string */
 564                                 for (i = 0; i < cred->key_len; i++)
 565                                         fputc(cred->key[i], nconf);
 566                         } else {
 567                                 /* Raw WEP key; convert to hex */
 568                                 for (i = 0; i < cred->key_len; i++)
 569                                         fprintf(nconf, "%02x", cred->key[i]);
 570                         }
 571                         fprintf(nconf, "\n");
 572                 }
 573         }
 574
 575         fprintf(nconf, "# WPS configuration - END\n");
 576
 577         multi_bss = 0;
 578         while (fgets(buf, sizeof(buf), oconf)) {
 579                 if (os_strncmp(buf, "bss=", 4) == 0)
 580                         multi_bss = 1;
 581                 if (!multi_bss &&
 582                     (str_starts(buf, "ssid=") ||
 583                      str_starts(buf, "ssid2=") ||
 584                      str_starts(buf, "auth_algs=") ||
 585                      str_starts(buf, "wep_default_key=") ||
 586                      str_starts(buf, "wep_key") ||
 587                      str_starts(buf, "wps_state=") ||
 588                      str_starts(buf, "wpa=") ||
 589                      str_starts(buf, "wpa_psk=") ||
 590                      str_starts(buf, "wpa_pairwise=") ||
 591                      str_starts(buf, "rsn_pairwise=") ||
 592                      str_starts(buf, "wpa_key_mgmt=") ||
 593                      str_starts(buf, "wpa_passphrase="))) {
 594                         fprintf(nconf, "#WPS# %s", buf);
 595                 } else
 596                         fprintf(nconf, "%s", buf);
 597         }
 598
 599         fclose(nconf);
 600         fclose(oconf);
 601
 602         if (rename(tmp_fname, hapd->iface->config_fname) < 0) {
 603                 wpa_printf(MSG_WARNING, "WPS: Failed to rename the updated "
 604                            "configuration file: %s", strerror(errno));
 605                 os_free(tmp_fname);
 606                 return -1;
 607         }
 608
 609         os_free(tmp_fname);
 610
 611         /* Schedule configuration reload after short period of time to allow
 612          * EAP-WSC to be finished.
 613          */
 614         eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
 615                                NULL);
 616
 617         wpa_printf(MSG_DEBUG, "WPS: AP configuration updated");
 618
 619         return 0;
 620 }
 621
 622
 623 static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred)
 624 {
 625         struct hostapd_data *hapd = ctx;
 626         return hostapd_wps_for_each(hapd, hapd_wps_cred_cb, (void *) cred);
 627 }
 628
 629
 630 static void hostapd_wps_reenable_ap_pin(void *eloop_data, void *user_ctx)
 631 {
 632         struct hostapd_data *hapd = eloop_data;
 633
 634         if (hapd->conf->ap_setup_locked)
 635                 return;
 636         if (hapd->ap_pin_failures_consecutive >= 10)
 637                 return;
 638
 639         wpa_printf(MSG_DEBUG, "WPS: Re-enable AP PIN");
 640         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
 641         hapd->wps->ap_setup_locked = 0;
 642         wps_registrar_update_ie(hapd->wps->registrar);
 643 }
 644
 645
 646 static int wps_pwd_auth_fail(struct hostapd_data *hapd, void *ctx)
 647 {
 648         struct wps_event_pwd_auth_fail *data = ctx;
 649
 650         if (!data->enrollee || hapd->conf->ap_pin == NULL || hapd->wps == NULL)
 651                 return 0;
 652
 653         /*
 654          * Registrar failed to prove its knowledge of the AP PIN. Lock AP setup
 655          * for some time if this happens multiple times to slow down brute
 656          * force attacks.
 657          */
 658         hapd->ap_pin_failures++;
 659         hapd->ap_pin_failures_consecutive++;
 660         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u "
 661                    "(%u consecutive)",
 662                    hapd->ap_pin_failures, hapd->ap_pin_failures_consecutive);
 663         if (hapd->ap_pin_failures < 3)
 664                 return 0;
 665
 666         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_LOCKED);
 667         hapd->wps->ap_setup_locked = 1;
 668
 669         wps_registrar_update_ie(hapd->wps->registrar);
 670
 671         if (!hapd->conf->ap_setup_locked &&
 672             hapd->ap_pin_failures_consecutive >= 10) {
 673                 /*
 674                  * In indefinite lockdown - disable automatic AP PIN
 675                  * reenablement.
 676                  */
 677                 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
 678                 wpa_printf(MSG_DEBUG, "WPS: AP PIN disabled indefinitely");
 679         } else if (!hapd->conf->ap_setup_locked) {
 680                 if (hapd->ap_pin_lockout_time == 0)
 681                         hapd->ap_pin_lockout_time = 60;
 682                 else if (hapd->ap_pin_lockout_time < 365 * 24 * 60 * 60 &&
 683                          (hapd->ap_pin_failures % 3) == 0)
 684                         hapd->ap_pin_lockout_time *= 2;
 685
 686                 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN for %u seconds",
 687                            hapd->ap_pin_lockout_time);
 688                 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
 689                 eloop_register_timeout(hapd->ap_pin_lockout_time, 0,
 690                                        hostapd_wps_reenable_ap_pin, hapd,
 691                                        NULL);
 692         }
 693
 694         return 0;
 695 }
 696
 697
 698 static void hostapd_pwd_auth_fail(struct hostapd_data *hapd,
 699                                   struct wps_event_pwd_auth_fail *data)
 700 {
 701         hostapd_wps_for_each(hapd, wps_pwd_auth_fail, data);
 702 }
 703
 704
 705 static int wps_ap_pin_success(struct hostapd_data *hapd, void *ctx)
 706 {
 707         if (hapd->conf->ap_pin == NULL || hapd->wps == NULL)
 708                 return 0;
 709
 710         if (hapd->ap_pin_failures_consecutive == 0)
 711                 return 0;
 712
 713         wpa_printf(MSG_DEBUG, "WPS: Clear consecutive AP PIN failure counter "
 714                    "- total validation failures %u (%u consecutive)",
 715                    hapd->ap_pin_failures, hapd->ap_pin_failures_consecutive);
 716         hapd->ap_pin_failures_consecutive = 0;
 717
 718         return 0;
 719 }
 720
 721
 722 static void hostapd_wps_ap_pin_success(struct hostapd_data *hapd)
 723 {
 724         hostapd_wps_for_each(hapd, wps_ap_pin_success, NULL);
 725 }
 726
 727
 728 static const char * wps_event_fail_reason[NUM_WPS_EI_VALUES] = {
 729         "No Error", /* WPS_EI_NO_ERROR */
 730         "TKIP Only Prohibited", /* WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED */
 731         "WEP Prohibited" /* WPS_EI_SECURITY_WEP_PROHIBITED */
 732 };
 733
 734 static void hostapd_wps_event_fail(struct hostapd_data *hapd,
 735                                    struct wps_event_fail *fail)
 736 {
 737         if (fail->error_indication > 0 &&
 738             fail->error_indication < NUM_WPS_EI_VALUES) {
 739                 wpa_msg(hapd->msg_ctx, MSG_INFO,
 740                         WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
 741                         fail->msg, fail->config_error, fail->error_indication,
 742                         wps_event_fail_reason[fail->error_indication]);
 743         } else {
 744                 wpa_msg(hapd->msg_ctx, MSG_INFO,
 745                         WPS_EVENT_FAIL "msg=%d config_error=%d",
 746                         fail->msg, fail->config_error);
 747         }
 748 }
 749
 750
 751 static void hostapd_wps_event_cb(void *ctx, enum wps_event event,
 752                                  union wps_event_data *data)
 753 {
 754         struct hostapd_data *hapd = ctx;
 755
 756         switch (event) {
 757         case WPS_EV_M2D:
 758                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_M2D);
 759                 break;
 760         case WPS_EV_FAIL:
 761                 hostapd_wps_event_fail(hapd, &data->fail);
 762                 break;
 763         case WPS_EV_SUCCESS:
 764                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_SUCCESS);
 765                 break;
 766         case WPS_EV_PWD_AUTH_FAIL:
 767                 hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail);
 768                 break;
 769         case WPS_EV_PBC_OVERLAP:
 770                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_OVERLAP);
 771                 break;
 772         case WPS_EV_PBC_TIMEOUT:
 773                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_TIMEOUT);
 774                 break;
 775         case WPS_EV_ER_AP_ADD:
 776                 break;
 777         case WPS_EV_ER_AP_REMOVE:
 778                 break;
 779         case WPS_EV_ER_ENROLLEE_ADD:
 780                 break;
 781         case WPS_EV_ER_ENROLLEE_REMOVE:
 782                 break;
 783         case WPS_EV_ER_AP_SETTINGS:
 784                 break;
 785         case WPS_EV_ER_SET_SELECTED_REGISTRAR:
 786                 break;
 787         case WPS_EV_AP_PIN_SUCCESS:
 788                 hostapd_wps_ap_pin_success(hapd);
 789                 break;
 790         }
 791         if (hapd->wps_event_cb)
 792                 hapd->wps_event_cb(hapd->wps_event_cb_ctx, event, data);
 793 }
 794
 795
 796 static void hostapd_wps_clear_ies(struct hostapd_data *hapd)
 797 {
 798         wpabuf_free(hapd->wps_beacon_ie);
 799         hapd->wps_beacon_ie = NULL;
 800
 801         wpabuf_free(hapd->wps_probe_resp_ie);
 802         hapd->wps_probe_resp_ie = NULL;
 803
 804         hostapd_set_ap_wps_ie(hapd);
 805 }
 806
 807
 808 static int get_uuid_cb(struct hostapd_iface *iface, void *ctx)
 809 {
 810         const u8 **uuid = ctx;
 811         size_t j;
 812
 813         if (iface == NULL)
 814                 return 0;
 815         for (j = 0; j < iface->num_bss; j++) {
 816                 struct hostapd_data *hapd = iface->bss[j];
 817                 if (hapd->wps && !is_nil_uuid(hapd->wps->uuid)) {
 818                         *uuid = hapd->wps->uuid;
 819                         return 1;
 820                 }
 821         }
 822
 823         return 0;
 824 }
 825
 826
 827 static const u8 * get_own_uuid(struct hostapd_iface *iface)
 828 {
 829         const u8 *uuid;
 830         if (iface->interfaces == NULL ||
 831             iface->interfaces->for_each_interface == NULL)
 832                 return NULL;
 833         uuid = NULL;
 834         iface->interfaces->for_each_interface(iface->interfaces, get_uuid_cb,
 835                                               &uuid);
 836         return uuid;
 837 }
 838
 839
 840 static int count_interface_cb(struct hostapd_iface *iface, void *ctx)
 841 {
 842         int *count= ctx;
 843         (*count)++;
 844         return 0;
 845 }
 846
 847
 848 static int interface_count(struct hostapd_iface *iface)
 849 {
 850         int count = 0;
 851         if (iface->interfaces == NULL ||
 852             iface->interfaces->for_each_interface == NULL)
 853                 return 0;
 854         iface->interfaces->for_each_interface(iface->interfaces,
 855                                               count_interface_cb, &count);
 856         return count;
 857 }
 858
 859
 860 static int hostapd_wps_set_vendor_ext(struct hostapd_data *hapd,
 861                                       struct wps_context *wps)
 862 {
 863         int i;
 864
 865         for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++) {
 866                 wpabuf_free(wps->dev.vendor_ext[i]);
 867                 wps->dev.vendor_ext[i] = NULL;
 868
 869                 if (hapd->conf->wps_vendor_ext[i] == NULL)
 870                         continue;
 871
 872                 wps->dev.vendor_ext[i] =
 873                         wpabuf_dup(hapd->conf->wps_vendor_ext[i]);
 874                 if (wps->dev.vendor_ext[i] == NULL) {
 875                         while (--i >= 0)
 876                                 wpabuf_free(wps->dev.vendor_ext[i]);
 877                         return -1;
 878                 }
 879         }
 880
 881         return 0;
 882 }
 883
 884
 885 int hostapd_init_wps(struct hostapd_data *hapd,
 886                      struct hostapd_bss_config *conf)
 887 {
 888         struct wps_context *wps;
 889         struct wps_registrar_config cfg;
 890
 891         if (conf->wps_state == 0) {
 892                 hostapd_wps_clear_ies(hapd);
 893                 return 0;
 894         }
 895
 896         wps = os_zalloc(sizeof(*wps));
 897         if (wps == NULL)
 898                 return -1;
 899
 900         wps->cred_cb = hostapd_wps_cred_cb;
 901         wps->event_cb = hostapd_wps_event_cb;
 902         wps->cb_ctx = hapd;
 903
 904         os_memset(&cfg, 0, sizeof(cfg));
 905         wps->wps_state = hapd->conf->wps_state;
 906         wps->ap_setup_locked = hapd->conf->ap_setup_locked;
 907         if (is_nil_uuid(hapd->conf->uuid)) {
 908                 const u8 *uuid;
 909                 uuid = get_own_uuid(hapd->iface);
 910                 if (uuid) {
 911                         os_memcpy(wps->uuid, uuid, UUID_LEN);
 912                         wpa_hexdump(MSG_DEBUG, "WPS: Clone UUID from another "
 913                                     "interface", wps->uuid, UUID_LEN);
 914                 } else {
 915                         uuid_gen_mac_addr(hapd->own_addr, wps->uuid);
 916                         wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
 917                                     "address", wps->uuid, UUID_LEN);
 918                 }
 919         } else {
 920                 os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN);
 921                 wpa_hexdump(MSG_DEBUG, "WPS: Use configured UUID",
 922                             wps->uuid, UUID_LEN);
 923         }
 924         wps->ssid_len = hapd->conf->ssid.ssid_len;
 925         os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len);
 926         wps->ap = 1;
 927         os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN);
 928         wps->dev.device_name = hapd->conf->device_name ?
 929                 os_strdup(hapd->conf->device_name) : NULL;
 930         wps->dev.manufacturer = hapd->conf->manufacturer ?
 931                 os_strdup(hapd->conf->manufacturer) : NULL;
 932         wps->dev.model_name = hapd->conf->model_name ?
 933                 os_strdup(hapd->conf->model_name) : NULL;
 934         wps->dev.model_number = hapd->conf->model_number ?
 935                 os_strdup(hapd->conf->model_number) : NULL;
 936         wps->dev.serial_number = hapd->conf->serial_number ?
 937                 os_strdup(hapd->conf->serial_number) : NULL;
 938         wps->config_methods =
 939                 wps_config_methods_str2bin(hapd->conf->config_methods);
 940 #ifdef CONFIG_WPS2
 941         if ((wps->config_methods &
 942              (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
 943               WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
 944                 wpa_printf(MSG_INFO, "WPS: Converting display to "
 945                            "virtual_display for WPS 2.0 compliance");
 946                 wps->config_methods |= WPS_CONFIG_VIRT_DISPLAY;
 947         }
 948         if ((wps->config_methods &
 949              (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
 950               WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
 951                 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
 952                            "virtual_push_button for WPS 2.0 compliance");
 953                 wps->config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
 954         }
 955 #endif /* CONFIG_WPS2 */
 956         os_memcpy(wps->dev.pri_dev_type, hapd->conf->device_type,
 957                   WPS_DEV_TYPE_LEN);
 958
 959         if (hostapd_wps_set_vendor_ext(hapd, wps) < 0) {
 960                 os_free(wps);
 961                 return -1;
 962         }
 963
 964         wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version);
 965
 966         if (conf->wps_rf_bands) {
 967                 wps->dev.rf_bands = conf->wps_rf_bands;
 968         } else {
 969                 wps->dev.rf_bands =
 970                         hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
 971                         WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
 972         }
 973
 974         if (conf->wpa & WPA_PROTO_RSN) {
 975                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
 976                         wps->auth_types |= WPS_AUTH_WPA2PSK;
 977                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 978                         wps->auth_types |= WPS_AUTH_WPA2;
 979
 980                 if (conf->rsn_pairwise & WPA_CIPHER_CCMP)
 981                         wps->encr_types |= WPS_ENCR_AES;
 982                 if (conf->rsn_pairwise & WPA_CIPHER_TKIP)
 983                         wps->encr_types |= WPS_ENCR_TKIP;
 984         }
 985
 986         if (conf->wpa & WPA_PROTO_WPA) {
 987                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
 988                         wps->auth_types |= WPS_AUTH_WPAPSK;
 989                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 990                         wps->auth_types |= WPS_AUTH_WPA;
 991
 992                 if (conf->wpa_pairwise & WPA_CIPHER_CCMP)
 993                         wps->encr_types |= WPS_ENCR_AES;
 994                 if (conf->wpa_pairwise & WPA_CIPHER_TKIP)
 995                         wps->encr_types |= WPS_ENCR_TKIP;
 996         }
 997
 998         if (conf->ssid.security_policy == SECURITY_PLAINTEXT) {
 999                 wps->encr_types |= WPS_ENCR_NONE;
1000                 wps->auth_types |= WPS_AUTH_OPEN;
1001         } else if (conf->ssid.security_policy == SECURITY_STATIC_WEP) {
1002                 wps->encr_types |= WPS_ENCR_WEP;
1003                 if (conf->auth_algs & WPA_AUTH_ALG_OPEN)
1004                         wps->auth_types |= WPS_AUTH_OPEN;
1005                 if (conf->auth_algs & WPA_AUTH_ALG_SHARED)
1006                         wps->auth_types |= WPS_AUTH_SHARED;
1007         } else if (conf->ssid.security_policy == SECURITY_IEEE_802_1X) {
1008                 wps->auth_types |= WPS_AUTH_OPEN;
1009                 if (conf->default_wep_key_len)
1010                         wps->encr_types |= WPS_ENCR_WEP;
1011                 else
1012                         wps->encr_types |= WPS_ENCR_NONE;
1013         }
1014
1015         if (conf->ssid.wpa_psk_file) {
1016                 /* Use per-device PSKs */
1017         } else if (conf->ssid.wpa_passphrase) {
1018                 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase);
1019                 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase);
1020         } else if (conf->ssid.wpa_psk) {
1021                 wps->network_key = os_malloc(2 * PMK_LEN + 1);
1022                 if (wps->network_key == NULL) {
1023                         os_free(wps);
1024                         return -1;
1025                 }
1026                 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1,
1027                                  conf->ssid.wpa_psk->psk, PMK_LEN);
1028                 wps->network_key_len = 2 * PMK_LEN;
1029         } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) {
1030                 wps->network_key = os_malloc(conf->ssid.wep.len[0]);
1031                 if (wps->network_key == NULL) {
1032                         os_free(wps);
1033                         return -1;
1034                 }
1035                 os_memcpy(wps->network_key, conf->ssid.wep.key[0],
1036                           conf->ssid.wep.len[0]);
1037                 wps->network_key_len = conf->ssid.wep.len[0];
1038         }
1039
1040         if (conf->ssid.wpa_psk) {
1041                 os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN);
1042                 wps->psk_set = 1;
1043         }
1044
1045         if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) {
1046                 /* Override parameters to enable security by default */
1047                 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
1048                 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
1049         }
1050
1051         wps->ap_settings = conf->ap_settings;
1052         wps->ap_settings_len = conf->ap_settings_len;
1053
1054         cfg.new_psk_cb = hostapd_wps_new_psk_cb;
1055         cfg.set_ie_cb = hostapd_wps_set_ie_cb;
1056         cfg.pin_needed_cb = hostapd_wps_pin_needed_cb;
1057         cfg.reg_success_cb = hostapd_wps_reg_success_cb;
1058         cfg.enrollee_seen_cb = hostapd_wps_enrollee_seen_cb;
1059         cfg.cb_ctx = hapd;
1060         cfg.skip_cred_build = conf->skip_cred_build;
1061         cfg.extra_cred = conf->extra_cred;
1062         cfg.extra_cred_len = conf->extra_cred_len;
1063         cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) &&
1064                 conf->skip_cred_build;
1065         if (conf->ssid.security_policy == SECURITY_STATIC_WEP)
1066                 cfg.static_wep_only = 1;
1067         cfg.dualband = interface_count(hapd->iface) > 1;
1068         if ((wps->dev.rf_bands & (WPS_RF_50GHZ | WPS_RF_24GHZ)) ==
1069             (WPS_RF_50GHZ | WPS_RF_24GHZ))
1070                 cfg.dualband = 1;
1071         if (cfg.dualband)
1072                 wpa_printf(MSG_DEBUG, "WPS: Dualband AP");
1073
1074         wps->registrar = wps_registrar_init(wps, &cfg);
1075         if (wps->registrar == NULL) {
1076                 wpa_printf(MSG_ERROR, "Failed to initialize WPS Registrar");
1077                 os_free(wps->network_key);
1078                 os_free(wps);
1079                 return -1;
1080         }
1081
1082 #ifdef CONFIG_WPS_UPNP
1083         wps->friendly_name = hapd->conf->friendly_name;
1084         wps->manufacturer_url = hapd->conf->manufacturer_url;
1085         wps->model_description = hapd->conf->model_description;
1086         wps->model_url = hapd->conf->model_url;
1087         wps->upc = hapd->conf->upc;
1088 #endif /* CONFIG_WPS_UPNP */
1089
1090         hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd);
1091
1092         hapd->wps = wps;
1093
1094         return 0;
1095 }
1096
1097
1098 int hostapd_init_wps_complete(struct hostapd_data *hapd)
1099 {
1100         struct wps_context *wps = hapd->wps;
1101
1102         if (wps == NULL)
1103                 return 0;
1104
1105 #ifdef CONFIG_WPS_UPNP
1106         if (hostapd_wps_upnp_init(hapd, wps) < 0) {
1107                 wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP");
1108                 wps_registrar_deinit(wps->registrar);
1109                 os_free(wps->network_key);
1110                 os_free(wps);
1111                 hapd->wps = NULL;
1112                 return -1;
1113         }
1114 #endif /* CONFIG_WPS_UPNP */
1115
1116         return 0;
1117 }
1118
1119
1120 static void hostapd_wps_nfc_clear(struct wps_context *wps)
1121 {
1122 #ifdef CONFIG_WPS_NFC
1123         wps->ap_nfc_dev_pw_id = 0;
1124         wpabuf_free(wps->ap_nfc_dh_pubkey);
1125         wps->ap_nfc_dh_pubkey = NULL;
1126         wpabuf_free(wps->ap_nfc_dh_privkey);
1127         wps->ap_nfc_dh_privkey = NULL;
1128         wpabuf_free(wps->ap_nfc_dev_pw);
1129         wps->ap_nfc_dev_pw = NULL;
1130 #endif /* CONFIG_WPS_NFC */
1131 }
1132
1133
1134 void hostapd_deinit_wps(struct hostapd_data *hapd)
1135 {
1136         eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
1137         eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1138         if (hapd->wps == NULL)
1139                 return;
1140 #ifdef CONFIG_WPS_UPNP
1141         hostapd_wps_upnp_deinit(hapd);
1142 #endif /* CONFIG_WPS_UPNP */
1143         wps_registrar_deinit(hapd->wps->registrar);
1144         os_free(hapd->wps->network_key);
1145         wps_device_data_free(&hapd->wps->dev);
1146         wpabuf_free(hapd->wps->dh_pubkey);
1147         wpabuf_free(hapd->wps->dh_privkey);
1148         wps_free_pending_msgs(hapd->wps->upnp_msgs);
1149         hostapd_wps_nfc_clear(hapd->wps);
1150         os_free(hapd->wps);
1151         hapd->wps = NULL;
1152         hostapd_wps_clear_ies(hapd);
1153 }
1154
1155
1156 void hostapd_update_wps(struct hostapd_data *hapd)
1157 {
1158         if (hapd->wps == NULL)
1159                 return;
1160
1161 #ifdef CONFIG_WPS_UPNP
1162         hapd->wps->friendly_name = hapd->conf->friendly_name;
1163         hapd->wps->manufacturer_url = hapd->conf->manufacturer_url;
1164         hapd->wps->model_description = hapd->conf->model_description;
1165         hapd->wps->model_url = hapd->conf->model_url;
1166         hapd->wps->upc = hapd->conf->upc;
1167 #endif /* CONFIG_WPS_UPNP */
1168
1169         hostapd_wps_set_vendor_ext(hapd, hapd->wps);
1170
1171         if (hapd->conf->wps_state)
1172                 wps_registrar_update_ie(hapd->wps->registrar);
1173         else
1174                 hostapd_deinit_wps(hapd);
1175 }
1176
1177
1178 struct wps_add_pin_data {
1179         const u8 *addr;
1180         const u8 *uuid;
1181         const u8 *pin;
1182         size_t pin_len;
1183         int timeout;
1184         int added;
1185 };
1186
1187
1188 static int wps_add_pin(struct hostapd_data *hapd, void *ctx)
1189 {
1190         struct wps_add_pin_data *data = ctx;
1191         int ret;
1192
1193         if (hapd->wps == NULL)
1194                 return 0;
1195         ret = wps_registrar_add_pin(hapd->wps->registrar, data->addr,
1196                                     data->uuid, data->pin, data->pin_len,
1197                                     data->timeout);
1198         if (ret == 0)
1199                 data->added++;
1200         return ret;
1201 }
1202
1203
1204 int hostapd_wps_add_pin(struct hostapd_data *hapd, const u8 *addr,
1205                         const char *uuid, const char *pin, int timeout)
1206 {
1207         u8 u[UUID_LEN];
1208         struct wps_add_pin_data data;
1209
1210         data.addr = addr;
1211         data.uuid = u;
1212         data.pin = (const u8 *) pin;
1213         data.pin_len = os_strlen(pin);
1214         data.timeout = timeout;
1215         data.added = 0;
1216
1217         if (os_strcmp(uuid, "any") == 0)
1218                 data.uuid = NULL;
1219         else {
1220                 if (uuid_str2bin(uuid, u))
1221                         return -1;
1222                 data.uuid = u;
1223         }
1224         if (hostapd_wps_for_each(hapd, wps_add_pin, &data) < 0)
1225                 return -1;
1226         return data.added ? 0 : -1;
1227 }
1228
1229
1230 static int wps_button_pushed(struct hostapd_data *hapd, void *ctx)
1231 {
1232         const u8 *p2p_dev_addr = ctx;
1233         if (hapd->wps == NULL)
1234                 return 0;
1235         return wps_registrar_button_pushed(hapd->wps->registrar, p2p_dev_addr);
1236 }
1237
1238
1239 int hostapd_wps_button_pushed(struct hostapd_data *hapd,
1240                               const u8 *p2p_dev_addr)
1241 {
1242         return hostapd_wps_for_each(hapd, wps_button_pushed,
1243                                     (void *) p2p_dev_addr);
1244 }
1245
1246
1247 static int wps_cancel(struct hostapd_data *hapd, void *ctx)
1248 {
1249         if (hapd->wps == NULL)
1250                 return 0;
1251
1252         wps_registrar_wps_cancel(hapd->wps->registrar);
1253         ap_for_each_sta(hapd, ap_sta_wps_cancel, NULL);
1254
1255         return 0;
1256 }
1257
1258
1259 int hostapd_wps_cancel(struct hostapd_data *hapd)
1260 {
1261         return hostapd_wps_for_each(hapd, wps_cancel, NULL);
1262 }
1263
1264
1265 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da,
1266                                     const u8 *bssid,
1267                                     const u8 *ie, size_t ie_len,
1268                                     int ssi_signal)
1269 {
1270         struct hostapd_data *hapd = ctx;
1271         struct wpabuf *wps_ie;
1272         struct ieee802_11_elems elems;
1273
1274         if (hapd->wps == NULL)
1275                 return 0;
1276
1277         if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) {
1278                 wpa_printf(MSG_DEBUG, "WPS: Could not parse ProbeReq from "
1279                            MACSTR, MAC2STR(addr));
1280                 return 0;
1281         }
1282
1283         if (elems.ssid && elems.ssid_len > 0 &&
1284             (elems.ssid_len != hapd->conf->ssid.ssid_len ||
1285              os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) !=
1286              0))
1287                 return 0; /* Not for us */
1288
1289         wps_ie = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
1290         if (wps_ie == NULL)
1291                 return 0;
1292         if (wps_validate_probe_req(wps_ie, addr) < 0) {
1293                 wpabuf_free(wps_ie);
1294                 return 0;
1295         }
1296
1297         if (wpabuf_len(wps_ie) > 0) {
1298                 int p2p_wildcard = 0;
1299 #ifdef CONFIG_P2P
1300                 if (elems.ssid && elems.ssid_len == P2P_WILDCARD_SSID_LEN &&
1301                     os_memcmp(elems.ssid, P2P_WILDCARD_SSID,
1302                               P2P_WILDCARD_SSID_LEN) == 0)
1303                         p2p_wildcard = 1;
1304 #endif /* CONFIG_P2P */
1305                 wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie,
1306                                            p2p_wildcard);
1307 #ifdef CONFIG_WPS_UPNP
1308                 /* FIX: what exactly should be included in the WLANEvent?
1309                  * WPS attributes? Full ProbeReq frame? */
1310                 if (!p2p_wildcard)
1311                         upnp_wps_device_send_wlan_event(
1312                                 hapd->wps_upnp, addr,
1313                                 UPNP_WPS_WLANEVENT_TYPE_PROBE, wps_ie);
1314 #endif /* CONFIG_WPS_UPNP */
1315         }
1316
1317         wpabuf_free(wps_ie);
1318
1319         return 0;
1320 }
1321
1322
1323 #ifdef CONFIG_WPS_UPNP
1324
1325 static int hostapd_rx_req_put_wlan_response(
1326         void *priv, enum upnp_wps_wlanevent_type ev_type,
1327         const u8 *mac_addr, const struct wpabuf *msg,
1328         enum wps_msg_type msg_type)
1329 {
1330         struct hostapd_data *hapd = priv;
1331         struct sta_info *sta;
1332         struct upnp_pending_message *p;
1333
1334         wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr="
1335                    MACSTR, ev_type, MAC2STR(mac_addr));
1336         wpa_hexdump(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage",
1337                     wpabuf_head(msg), wpabuf_len(msg));
1338         if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) {
1339                 wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected "
1340                            "PutWLANResponse WLANEventType %d", ev_type);
1341                 return -1;
1342         }
1343
1344         /*
1345          * EAP response to ongoing to WPS Registration. Send it to EAP-WSC
1346          * server implementation for delivery to the peer.
1347          */
1348
1349         sta = ap_get_sta(hapd, mac_addr);
1350 #ifndef CONFIG_WPS_STRICT
1351         if (!sta) {
1352                 /*
1353                  * Workaround - Intel wsccmd uses bogus NewWLANEventMAC:
1354                  * Pick STA that is in an ongoing WPS registration without
1355                  * checking the MAC address.
1356                  */
1357                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based "
1358                            "on NewWLANEventMAC; try wildcard match");
1359                 for (sta = hapd->sta_list; sta; sta = sta->next) {
1360                         if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS))
1361                                 break;
1362                 }
1363         }
1364 #endif /* CONFIG_WPS_STRICT */
1365
1366         if (!sta || !(sta->flags & WLAN_STA_WPS)) {
1367                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found");
1368                 return 0;
1369         }
1370
1371         p = os_zalloc(sizeof(*p));
1372         if (p == NULL)
1373                 return -1;
1374         os_memcpy(p->addr, sta->addr, ETH_ALEN);
1375         p->msg = wpabuf_dup(msg);
1376         p->type = msg_type;
1377         p->next = hapd->wps->upnp_msgs;
1378         hapd->wps->upnp_msgs = p;
1379
1380         return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap);
1381 }
1382
1383
1384 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
1385                                  struct wps_context *wps)
1386 {
1387         struct upnp_wps_device_ctx *ctx;
1388
1389         if (!hapd->conf->upnp_iface)
1390                 return 0;
1391         ctx = os_zalloc(sizeof(*ctx));
1392         if (ctx == NULL)
1393                 return -1;
1394
1395         ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response;
1396         if (hapd->conf->ap_pin)
1397                 ctx->ap_pin = os_strdup(hapd->conf->ap_pin);
1398
1399         hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd,
1400                                               hapd->conf->upnp_iface);
1401         if (hapd->wps_upnp == NULL)
1402                 return -1;
1403         wps->wps_upnp = hapd->wps_upnp;
1404
1405         return 0;
1406 }
1407
1408
1409 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd)
1410 {
1411         upnp_wps_device_deinit(hapd->wps_upnp, hapd);
1412 }
1413
1414 #endif /* CONFIG_WPS_UPNP */
1415
1416
1417 int hostapd_wps_get_mib_sta(struct hostapd_data *hapd, const u8 *addr,
1418                             char *buf, size_t buflen)
1419 {
1420         if (hapd->wps == NULL)
1421                 return 0;
1422         return wps_registrar_get_info(hapd->wps->registrar, addr, buf, buflen);
1423 }
1424
1425
1426 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
1427 {
1428         struct hostapd_data *hapd = eloop_data;
1429         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
1430         hostapd_wps_ap_pin_disable(hapd);
1431         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_PIN_DISABLED);
1432 }
1433
1434
1435 static void hostapd_wps_ap_pin_enable(struct hostapd_data *hapd, int timeout)
1436 {
1437         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
1438         hapd->ap_pin_failures = 0;
1439         hapd->ap_pin_failures_consecutive = 0;
1440         hapd->conf->ap_setup_locked = 0;
1441         if (hapd->wps->ap_setup_locked) {
1442                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
1443                 hapd->wps->ap_setup_locked = 0;
1444                 wps_registrar_update_ie(hapd->wps->registrar);
1445         }
1446         eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1447         if (timeout > 0)
1448                 eloop_register_timeout(timeout, 0,
1449                                        hostapd_wps_ap_pin_timeout, hapd, NULL);
1450 }
1451
1452
1453 static int wps_ap_pin_disable(struct hostapd_data *hapd, void *ctx)
1454 {
1455         os_free(hapd->conf->ap_pin);
1456         hapd->conf->ap_pin = NULL;
1457 #ifdef CONFIG_WPS_UPNP
1458         upnp_wps_set_ap_pin(hapd->wps_upnp, NULL);
1459 #endif /* CONFIG_WPS_UPNP */
1460         eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1461         return 0;
1462 }
1463
1464
1465 void hostapd_wps_ap_pin_disable(struct hostapd_data *hapd)
1466 {
1467         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
1468         hostapd_wps_for_each(hapd, wps_ap_pin_disable, NULL);
1469 }
1470
1471
1472 struct wps_ap_pin_data {
1473         char pin_txt[9];
1474         int timeout;
1475 };
1476
1477
1478 static int wps_ap_pin_set(struct hostapd_data *hapd, void *ctx)
1479 {
1480         struct wps_ap_pin_data *data = ctx;
1481         os_free(hapd->conf->ap_pin);
1482         hapd->conf->ap_pin = os_strdup(data->pin_txt);
1483 #ifdef CONFIG_WPS_UPNP
1484         upnp_wps_set_ap_pin(hapd->wps_upnp, data->pin_txt);
1485 #endif /* CONFIG_WPS_UPNP */
1486         hostapd_wps_ap_pin_enable(hapd, data->timeout);
1487         return 0;
1488 }
1489
1490
1491 const char * hostapd_wps_ap_pin_random(struct hostapd_data *hapd, int timeout)
1492 {
1493         unsigned int pin;
1494         struct wps_ap_pin_data data;
1495
1496         pin = wps_generate_pin();
1497         os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%08u", pin);
1498         data.timeout = timeout;
1499         hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1500         return hapd->conf->ap_pin;
1501 }
1502
1503
1504 const char * hostapd_wps_ap_pin_get(struct hostapd_data *hapd)
1505 {
1506         return hapd->conf->ap_pin;
1507 }
1508
1509
1510 int hostapd_wps_ap_pin_set(struct hostapd_data *hapd, const char *pin,
1511                            int timeout)
1512 {
1513         struct wps_ap_pin_data data;
1514         int ret;
1515
1516         ret = os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%s", pin);
1517         if (ret < 0 || ret >= (int) sizeof(data.pin_txt))
1518                 return -1;
1519         data.timeout = timeout;
1520         return hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1521 }
1522
1523
1524 static int wps_update_ie(struct hostapd_data *hapd, void *ctx)
1525 {
1526         if (hapd->wps)
1527                 wps_registrar_update_ie(hapd->wps->registrar);
1528         return 0;
1529 }
1530
1531
1532 void hostapd_wps_update_ie(struct hostapd_data *hapd)
1533 {
1534         hostapd_wps_for_each(hapd, wps_update_ie, NULL);
1535 }
1536
1537
1538 int hostapd_wps_config_ap(struct hostapd_data *hapd, const char *ssid,
1539                           const char *auth, const char *encr, const char *key)
1540 {
1541         struct wps_credential cred;
1542         size_t len;
1543
1544         os_memset(&cred, 0, sizeof(cred));
1545
1546         len = os_strlen(ssid);
1547         if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
1548             hexstr2bin(ssid, cred.ssid, len / 2))
1549                 return -1;
1550         cred.ssid_len = len / 2;
1551
1552         if (os_strncmp(auth, "OPEN", 4) == 0)
1553                 cred.auth_type = WPS_AUTH_OPEN;
1554         else if (os_strncmp(auth, "WPAPSK", 6) == 0)
1555                 cred.auth_type = WPS_AUTH_WPAPSK;
1556         else if (os_strncmp(auth, "WPA2PSK", 7) == 0)
1557                 cred.auth_type = WPS_AUTH_WPA2PSK;
1558         else
1559                 return -1;
1560
1561         if (encr) {
1562                 if (os_strncmp(encr, "NONE", 4) == 0)
1563                         cred.encr_type = WPS_ENCR_NONE;
1564                 else if (os_strncmp(encr, "WEP", 3) == 0)
1565                         cred.encr_type = WPS_ENCR_WEP;
1566                 else if (os_strncmp(encr, "TKIP", 4) == 0)
1567                         cred.encr_type = WPS_ENCR_TKIP;
1568                 else if (os_strncmp(encr, "CCMP", 4) == 0)
1569                         cred.encr_type = WPS_ENCR_AES;
1570                 else
1571                         return -1;
1572         } else
1573                 cred.encr_type = WPS_ENCR_NONE;
1574
1575         if (key) {
1576                 len = os_strlen(key);
1577                 if ((len & 1) || len > 2 * sizeof(cred.key) ||
1578                     hexstr2bin(key, cred.key, len / 2))
1579                         return -1;
1580                 cred.key_len = len / 2;
1581         }
1582
1583         return wps_registrar_config_ap(hapd->wps->registrar, &cred);
1584 }
1585
1586
1587 #ifdef CONFIG_WPS_NFC
1588
1589 struct wps_nfc_password_token_data {
1590         const u8 *oob_dev_pw;
1591         size_t oob_dev_pw_len;
1592         int added;
1593 };
1594
1595
1596 static int wps_add_nfc_password_token(struct hostapd_data *hapd, void *ctx)
1597 {
1598         struct wps_nfc_password_token_data *data = ctx;
1599         int ret;
1600
1601         if (hapd->wps == NULL)
1602                 return 0;
1603         ret = wps_registrar_add_nfc_password_token(hapd->wps->registrar,
1604                                                    data->oob_dev_pw,
1605                                                    data->oob_dev_pw_len);
1606         if (ret == 0)
1607                 data->added++;
1608         return ret;
1609 }
1610
1611
1612 static int hostapd_wps_add_nfc_password_token(struct hostapd_data *hapd,
1613                                               struct wps_parse_attr *attr)
1614 {
1615         struct wps_nfc_password_token_data data;
1616
1617         data.oob_dev_pw = attr->oob_dev_password;
1618         data.oob_dev_pw_len = attr->oob_dev_password_len;
1619         data.added = 0;
1620         if (hostapd_wps_for_each(hapd, wps_add_nfc_password_token, &data) < 0)
1621                 return -1;
1622         return data.added ? 0 : -1;
1623 }
1624
1625
1626 static int hostapd_wps_nfc_tag_process(struct hostapd_data *hapd,
1627                                        const struct wpabuf *wps)
1628 {
1629         struct wps_parse_attr attr;
1630
1631         wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps);
1632
1633         if (wps_parse_msg(wps, &attr)) {
1634                 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag");
1635                 return -1;
1636         }
1637
1638         if (attr.oob_dev_password)
1639                 return hostapd_wps_add_nfc_password_token(hapd, &attr);
1640
1641         wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag");
1642         return -1;
1643 }
1644
1645
1646 int hostapd_wps_nfc_tag_read(struct hostapd_data *hapd,
1647                              const struct wpabuf *data)
1648 {
1649         const struct wpabuf *wps = data;
1650         struct wpabuf *tmp = NULL;
1651         int ret;
1652
1653         if (wpabuf_len(data) < 4)
1654                 return -1;
1655
1656         if (*wpabuf_head_u8(data) != 0x10) {
1657                 /* Assume this contains full NDEF record */
1658                 tmp = ndef_parse_wifi(data);
1659                 if (tmp == NULL) {
1660                         wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF");
1661                         return -1;
1662                 }
1663                 wps = tmp;
1664         }
1665
1666         ret = hostapd_wps_nfc_tag_process(hapd, wps);
1667         wpabuf_free(tmp);
1668         return ret;
1669 }
1670
1671
1672 struct wpabuf * hostapd_wps_nfc_config_token(struct hostapd_data *hapd,
1673                                              int ndef)
1674 {
1675         struct wpabuf *ret;
1676
1677         if (hapd->wps == NULL)
1678                 return NULL;
1679
1680         ret = wps_get_oob_cred(hapd->wps);
1681         if (ndef && ret) {
1682                 struct wpabuf *tmp;
1683                 tmp = ndef_build_wifi(ret);
1684                 wpabuf_free(ret);
1685                 if (tmp == NULL)
1686                         return NULL;
1687                 ret = tmp;
1688         }
1689
1690         return ret;
1691 }
1692
1693
1694 struct wpabuf * hostapd_wps_nfc_hs_cr(struct hostapd_data *hapd, int ndef)
1695 {
1696         /*
1697          * Handover Select carrier record for WPS uses the same format as
1698          * configuration token.
1699          */
1700         return hostapd_wps_nfc_config_token(hapd, ndef);
1701 }
1702
1703
1704 struct wpabuf * hostapd_wps_nfc_token_gen(struct hostapd_data *hapd, int ndef)
1705 {
1706         if (hapd->conf->wps_nfc_pw_from_config) {
1707                 return wps_nfc_token_build(ndef,
1708                                            hapd->conf->wps_nfc_dev_pw_id,
1709                                            hapd->conf->wps_nfc_dh_pubkey,
1710                                            hapd->conf->wps_nfc_dev_pw);
1711         }
1712
1713         return wps_nfc_token_gen(ndef, &hapd->conf->wps_nfc_dev_pw_id,
1714                                  &hapd->conf->wps_nfc_dh_pubkey,
1715                                  &hapd->conf->wps_nfc_dh_privkey,
1716                                  &hapd->conf->wps_nfc_dev_pw);
1717 }
1718
1719
1720 int hostapd_wps_nfc_token_enable(struct hostapd_data *hapd)
1721 {
1722         struct wps_context *wps = hapd->wps;
1723         struct wpabuf *pw;
1724
1725         if (wps == NULL)
1726                 return -1;
1727
1728         if (!hapd->conf->wps_nfc_dh_pubkey ||
1729             !hapd->conf->wps_nfc_dh_privkey ||
1730             !hapd->conf->wps_nfc_dev_pw ||
1731             !hapd->conf->wps_nfc_dev_pw_id)
1732                 return -1;
1733
1734         hostapd_wps_nfc_clear(wps);
1735         wps->ap_nfc_dev_pw_id = hapd->conf->wps_nfc_dev_pw_id;
1736         wps->ap_nfc_dh_pubkey = wpabuf_dup(hapd->conf->wps_nfc_dh_pubkey);
1737         wps->ap_nfc_dh_privkey = wpabuf_dup(hapd->conf->wps_nfc_dh_privkey);
1738         pw = hapd->conf->wps_nfc_dev_pw;
1739         wps->ap_nfc_dev_pw = wpabuf_alloc(
1740                 wpabuf_len(pw) * 2 + 1);
1741         if (wps->ap_nfc_dev_pw) {
1742                 wpa_snprintf_hex_uppercase(
1743                         (char *) wpabuf_put(wps->ap_nfc_dev_pw,
1744                                             wpabuf_len(pw) * 2),
1745                         wpabuf_len(pw) * 2 + 1,
1746                         wpabuf_head(pw), wpabuf_len(pw));
1747         }
1748
1749         if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey ||
1750             !wps->ap_nfc_dev_pw) {
1751                 hostapd_wps_nfc_clear(wps);
1752                 return -1;
1753         }
1754
1755         return 0;
1756 }
1757
1758
1759 void hostapd_wps_nfc_token_disable(struct hostapd_data *hapd)
1760 {
1761         hostapd_wps_nfc_clear(hapd->wps);
1762 }
1763
1764 #endif /* CONFIG_WPS_NFC */