src/ap/wps_hostapd.c

   1 /*
   2  * hostapd / WPS integration
   3  * Copyright (c) 2008-2009, Jouni Malinen <j@w1.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  */
  14
  15 #include "utils/includes.h"
  16
  17 #include "utils/common.h"
  18 #include "utils/eloop.h"
  19 #include "utils/uuid.h"
  20 #include "crypto/dh_groups.h"
  21 #include "common/wpa_ctrl.h"
  22 #include "common/ieee802_11_defs.h"
  23 #include "common/ieee802_11_common.h"
  24 #include "eapol_auth/eapol_auth_sm.h"
  25 #include "eapol_auth/eapol_auth_sm_i.h"
  26 #include "wps/wps.h"
  27 #include "wps/wps_defs.h"
  28 #include "wps/wps_dev_attr.h"
  29 #include "hostapd.h"
  30 #include "ap_config.h"
  31 #include "beacon.h"
  32 #include "sta_info.h"
  33 #include "wps_hostapd.h"
  34
  35
  36 #ifdef CONFIG_WPS_UPNP
  37 #include "wps/wps_upnp.h"
  38 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
  39                                  struct wps_context *wps);
  40 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd);
  41 #endif /* CONFIG_WPS_UPNP */
  42
  43 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr,
  44                                     const u8 *ie, size_t ie_len);
  45
  46
  47 static int hostapd_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
  48                                   size_t psk_len)
  49 {
  50         struct hostapd_data *hapd = ctx;
  51         struct hostapd_wpa_psk *p;
  52         struct hostapd_ssid *ssid = &hapd->conf->ssid;
  53
  54         wpa_printf(MSG_DEBUG, "Received new WPA/WPA2-PSK from WPS for STA "
  55                    MACSTR, MAC2STR(mac_addr));
  56         wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
  57
  58         if (psk_len != PMK_LEN) {
  59                 wpa_printf(MSG_DEBUG, "Unexpected PSK length %lu",
  60                            (unsigned long) psk_len);
  61                 return -1;
  62         }
  63
  64         /* Add the new PSK to runtime PSK list */
  65         p = os_zalloc(sizeof(*p));
  66         if (p == NULL)
  67                 return -1;
  68         os_memcpy(p->addr, mac_addr, ETH_ALEN);
  69         os_memcpy(p->psk, psk, PMK_LEN);
  70
  71         p->next = ssid->wpa_psk;
  72         ssid->wpa_psk = p;
  73
  74         if (ssid->wpa_psk_file) {
  75                 FILE *f;
  76                 char hex[PMK_LEN * 2 + 1];
  77                 /* Add the new PSK to PSK list file */
  78                 f = fopen(ssid->wpa_psk_file, "a");
  79                 if (f == NULL) {
  80                         wpa_printf(MSG_DEBUG, "Failed to add the PSK to "
  81                                    "'%s'", ssid->wpa_psk_file);
  82                         return -1;
  83                 }
  84
  85                 wpa_snprintf_hex(hex, sizeof(hex), psk, psk_len);
  86                 fprintf(f, MACSTR " %s\n", MAC2STR(mac_addr), hex);
  87                 fclose(f);
  88         }
  89
  90         return 0;
  91 }
  92
  93
  94 static int hostapd_wps_set_ie_cb(void *ctx, struct wpabuf *beacon_ie,
  95                                  struct wpabuf *probe_resp_ie)
  96 {
  97         struct hostapd_data *hapd = ctx;
  98         wpabuf_free(hapd->wps_beacon_ie);
  99         hapd->wps_beacon_ie = beacon_ie;
 100         wpabuf_free(hapd->wps_probe_resp_ie);
 101         hapd->wps_probe_resp_ie = probe_resp_ie;
 102         ieee802_11_set_beacon(hapd);
 103         return hapd->drv.set_ap_wps_ie(hapd);
 104 }
 105
 106
 107 static void hostapd_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
 108                                       const struct wps_device_data *dev)
 109 {
 110         struct hostapd_data *hapd = ctx;
 111         char uuid[40], txt[400];
 112         int len;
 113         char devtype[WPS_DEV_TYPE_BUFSIZE];
 114         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 115                 return;
 116         wpa_printf(MSG_DEBUG, "WPS: PIN needed for E-UUID %s", uuid);
 117         len = os_snprintf(txt, sizeof(txt), WPS_EVENT_PIN_NEEDED
 118                           "%s " MACSTR " [%s|%s|%s|%s|%s|%s]",
 119                           uuid, MAC2STR(dev->mac_addr), dev->device_name,
 120                           dev->manufacturer, dev->model_name,
 121                           dev->model_number, dev->serial_number,
 122                           wps_dev_type_bin2str(dev->pri_dev_type, devtype,
 123                                                sizeof(devtype)));
 124         if (len > 0 && len < (int) sizeof(txt))
 125                 wpa_msg(hapd->msg_ctx, MSG_INFO, "%s", txt);
 126
 127         if (hapd->conf->wps_pin_requests) {
 128                 FILE *f;
 129                 struct os_time t;
 130                 f = fopen(hapd->conf->wps_pin_requests, "a");
 131                 if (f == NULL)
 132                         return;
 133                 os_get_time(&t);
 134                 fprintf(f, "%ld\t%s\t" MACSTR "\t%s\t%s\t%s\t%s\t%s"
 135                         "\t%s\n",
 136                         t.sec, uuid, MAC2STR(dev->mac_addr), dev->device_name,
 137                         dev->manufacturer, dev->model_name, dev->model_number,
 138                         dev->serial_number,
 139                         wps_dev_type_bin2str(dev->pri_dev_type, devtype,
 140                                              sizeof(devtype)));
 141                 fclose(f);
 142         }
 143 }
 144
 145
 146 static void hostapd_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 147                                        const u8 *uuid_e)
 148 {
 149         struct hostapd_data *hapd = ctx;
 150         char uuid[40];
 151         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 152                 return;
 153         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s",
 154                 MAC2STR(mac_addr), uuid);
 155         if (hapd->wps_reg_success_cb)
 156                 hapd->wps_reg_success_cb(hapd->wps_reg_success_cb_ctx,
 157                                          mac_addr, uuid_e);
 158 }
 159
 160
 161 static void hostapd_wps_enrollee_seen_cb(void *ctx, const u8 *addr,
 162                                          const u8 *uuid_e,
 163                                          const u8 *pri_dev_type,
 164                                          u16 config_methods,
 165                                          u16 dev_password_id, u8 request_type,
 166                                          const char *dev_name)
 167 {
 168         struct hostapd_data *hapd = ctx;
 169         char uuid[40];
 170         char devtype[WPS_DEV_TYPE_BUFSIZE];
 171         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 172                 return;
 173         if (dev_name == NULL)
 174                 dev_name = "";
 175         wpa_msg_ctrl(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ENROLLEE_SEEN MACSTR
 176                      " %s %s 0x%x %u %u [%s]",
 177                      MAC2STR(addr), uuid,
 178                      wps_dev_type_bin2str(pri_dev_type, devtype,
 179                                           sizeof(devtype)),
 180                      config_methods, dev_password_id, request_type, dev_name);
 181 }
 182
 183
 184 static int str_starts(const char *str, const char *start)
 185 {
 186         return os_strncmp(str, start, os_strlen(start)) == 0;
 187 }
 188
 189
 190 static void wps_reload_config(void *eloop_data, void *user_ctx)
 191 {
 192         struct hostapd_iface *iface = eloop_data;
 193
 194         wpa_printf(MSG_DEBUG, "WPS: Reload configuration data");
 195         if (iface->reload_config(iface) < 0) {
 196                 wpa_printf(MSG_WARNING, "WPS: Failed to reload the updated "
 197                            "configuration");
 198         }
 199 }
 200
 201
 202 static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred)
 203 {
 204         struct hostapd_data *hapd = ctx;
 205         FILE *oconf, *nconf;
 206         size_t len, i;
 207         char *tmp_fname;
 208         char buf[1024];
 209         int multi_bss;
 210         int wpa;
 211
 212         wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
 213                         cred->cred_attr, cred->cred_attr_len);
 214
 215         wpa_printf(MSG_DEBUG, "WPS: Received new AP Settings");
 216         wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
 217         wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
 218                    cred->auth_type);
 219         wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
 220         wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
 221         wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
 222                         cred->key, cred->key_len);
 223         wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
 224                    MAC2STR(cred->mac_addr));
 225
 226         if ((hapd->conf->wps_cred_processing == 1 ||
 227              hapd->conf->wps_cred_processing == 2) && cred->cred_attr) {
 228                 size_t blen = cred->cred_attr_len * 2 + 1;
 229                 char *_buf = os_malloc(blen);
 230                 if (_buf) {
 231                         wpa_snprintf_hex(_buf, blen,
 232                                          cred->cred_attr, cred->cred_attr_len);
 233                         wpa_msg(hapd->msg_ctx, MSG_INFO, "%s%s",
 234                                 WPS_EVENT_NEW_AP_SETTINGS, _buf);
 235                         os_free(_buf);
 236                 }
 237         } else
 238                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS);
 239
 240         if (hapd->conf->wps_cred_processing == 1)
 241                 return 0;
 242
 243         os_memcpy(hapd->wps->ssid, cred->ssid, cred->ssid_len);
 244         hapd->wps->ssid_len = cred->ssid_len;
 245         hapd->wps->encr_types = cred->encr_type;
 246         hapd->wps->auth_types = cred->auth_type;
 247         if (cred->key_len == 0) {
 248                 os_free(hapd->wps->network_key);
 249                 hapd->wps->network_key = NULL;
 250                 hapd->wps->network_key_len = 0;
 251         } else {
 252                 if (hapd->wps->network_key == NULL ||
 253                     hapd->wps->network_key_len < cred->key_len) {
 254                         hapd->wps->network_key_len = 0;
 255                         os_free(hapd->wps->network_key);
 256                         hapd->wps->network_key = os_malloc(cred->key_len);
 257                         if (hapd->wps->network_key == NULL)
 258                                 return -1;
 259                 }
 260                 hapd->wps->network_key_len = cred->key_len;
 261                 os_memcpy(hapd->wps->network_key, cred->key, cred->key_len);
 262         }
 263         hapd->wps->wps_state = WPS_STATE_CONFIGURED;
 264
 265         len = os_strlen(hapd->iface->config_fname) + 5;
 266         tmp_fname = os_malloc(len);
 267         if (tmp_fname == NULL)
 268                 return -1;
 269         os_snprintf(tmp_fname, len, "%s-new", hapd->iface->config_fname);
 270
 271         oconf = fopen(hapd->iface->config_fname, "r");
 272         if (oconf == NULL) {
 273                 wpa_printf(MSG_WARNING, "WPS: Could not open current "
 274                            "configuration file");
 275                 os_free(tmp_fname);
 276                 return -1;
 277         }
 278
 279         nconf = fopen(tmp_fname, "w");
 280         if (nconf == NULL) {
 281                 wpa_printf(MSG_WARNING, "WPS: Could not write updated "
 282                            "configuration file");
 283                 os_free(tmp_fname);
 284                 fclose(oconf);
 285                 return -1;
 286         }
 287
 288         fprintf(nconf, "# WPS configuration - START\n");
 289
 290         fprintf(nconf, "wps_state=2\n");
 291
 292         fprintf(nconf, "ssid=");
 293         for (i = 0; i < cred->ssid_len; i++)
 294                 fputc(cred->ssid[i], nconf);
 295         fprintf(nconf, "\n");
 296
 297         if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
 298             (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
 299                 wpa = 3;
 300         else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
 301                 wpa = 2;
 302         else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
 303                 wpa = 1;
 304         else
 305                 wpa = 0;
 306
 307         if (wpa) {
 308                 char *prefix;
 309                 fprintf(nconf, "wpa=%d\n", wpa);
 310
 311                 fprintf(nconf, "wpa_key_mgmt=");
 312                 prefix = "";
 313                 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA)) {
 314                         fprintf(nconf, "WPA-EAP");
 315                         prefix = " ";
 316                 }
 317                 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK))
 318                         fprintf(nconf, "%sWPA-PSK", prefix);
 319                 fprintf(nconf, "\n");
 320
 321                 fprintf(nconf, "wpa_pairwise=");
 322                 prefix = "";
 323                 if (cred->encr_type & WPS_ENCR_AES) {
 324                         fprintf(nconf, "CCMP");
 325                         prefix = " ";
 326                 }
 327                 if (cred->encr_type & WPS_ENCR_TKIP) {
 328                         fprintf(nconf, "%sTKIP", prefix);
 329                 }
 330                 fprintf(nconf, "\n");
 331
 332                 if (cred->key_len >= 8 && cred->key_len < 64) {
 333                         fprintf(nconf, "wpa_passphrase=");
 334                         for (i = 0; i < cred->key_len; i++)
 335                                 fputc(cred->key[i], nconf);
 336                         fprintf(nconf, "\n");
 337                 } else if (cred->key_len == 64) {
 338                         fprintf(nconf, "wpa_psk=");
 339                         for (i = 0; i < cred->key_len; i++)
 340                                 fputc(cred->key[i], nconf);
 341                         fprintf(nconf, "\n");
 342                 } else {
 343                         wpa_printf(MSG_WARNING, "WPS: Invalid key length %lu "
 344                                    "for WPA/WPA2",
 345                                    (unsigned long) cred->key_len);
 346                 }
 347
 348                 fprintf(nconf, "auth_algs=1\n");
 349         } else {
 350                 if ((cred->auth_type & WPS_AUTH_OPEN) &&
 351                     (cred->auth_type & WPS_AUTH_SHARED))
 352                         fprintf(nconf, "auth_algs=3\n");
 353                 else if (cred->auth_type & WPS_AUTH_SHARED)
 354                         fprintf(nconf, "auth_algs=2\n");
 355                 else
 356                         fprintf(nconf, "auth_algs=1\n");
 357
 358                 if (cred->encr_type & WPS_ENCR_WEP && cred->key_idx <= 4) {
 359                         int key_idx = cred->key_idx;
 360                         if (key_idx)
 361                                 key_idx--;
 362                         fprintf(nconf, "wep_default_key=%d\n", key_idx);
 363                         fprintf(nconf, "wep_key%d=", key_idx);
 364                         if (cred->key_len == 10 || cred->key_len == 26) {
 365                                 /* WEP key as a hex string */
 366                                 for (i = 0; i < cred->key_len; i++)
 367                                         fputc(cred->key[i], nconf);
 368                         } else {
 369                                 /* Raw WEP key; convert to hex */
 370                                 for (i = 0; i < cred->key_len; i++)
 371                                         fprintf(nconf, "%02x", cred->key[i]);
 372                         }
 373                         fprintf(nconf, "\n");
 374                 }
 375         }
 376
 377         fprintf(nconf, "# WPS configuration - END\n");
 378
 379         multi_bss = 0;
 380         while (fgets(buf, sizeof(buf), oconf)) {
 381                 if (os_strncmp(buf, "bss=", 4) == 0)
 382                         multi_bss = 1;
 383                 if (!multi_bss &&
 384                     (str_starts(buf, "ssid=") ||
 385                      str_starts(buf, "auth_algs=") ||
 386                      str_starts(buf, "wps_state=") ||
 387                      str_starts(buf, "wpa=") ||
 388                      str_starts(buf, "wpa_psk=") ||
 389                      str_starts(buf, "wpa_pairwise=") ||
 390                      str_starts(buf, "rsn_pairwise=") ||
 391                      str_starts(buf, "wpa_key_mgmt=") ||
 392                      str_starts(buf, "wpa_passphrase="))) {
 393                         fprintf(nconf, "#WPS# %s", buf);
 394                 } else
 395                         fprintf(nconf, "%s", buf);
 396         }
 397
 398         fclose(nconf);
 399         fclose(oconf);
 400
 401         if (rename(tmp_fname, hapd->iface->config_fname) < 0) {
 402                 wpa_printf(MSG_WARNING, "WPS: Failed to rename the updated "
 403                            "configuration file: %s", strerror(errno));
 404                 os_free(tmp_fname);
 405                 return -1;
 406         }
 407
 408         os_free(tmp_fname);
 409
 410         /* Schedule configuration reload after short period of time to allow
 411          * EAP-WSC to be finished.
 412          */
 413         eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
 414                                NULL);
 415
 416         /* TODO: dualband AP may need to update multiple configuration files */
 417
 418         wpa_printf(MSG_DEBUG, "WPS: AP configuration updated");
 419
 420         return 0;
 421 }
 422
 423
 424 static void hostapd_wps_reenable_ap_pin(void *eloop_data, void *user_ctx)
 425 {
 426         struct hostapd_data *hapd = eloop_data;
 427
 428         if (hapd->conf->ap_setup_locked)
 429                 return;
 430
 431         wpa_printf(MSG_DEBUG, "WPS: Re-enable AP PIN");
 432         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
 433         hapd->wps->ap_setup_locked = 0;
 434         wps_registrar_update_ie(hapd->wps->registrar);
 435
 436 }
 437
 438
 439 static void hostapd_pwd_auth_fail(struct hostapd_data *hapd,
 440                                   struct wps_event_pwd_auth_fail *data)
 441 {
 442         if (!data->enrollee || hapd->conf->ap_pin == NULL)
 443                 return;
 444
 445         /*
 446          * Registrar failed to prove its knowledge of the AP PIN. Lock AP setup
 447          * for some time if this happens multiple times to slow down brute
 448          * force attacks.
 449          */
 450         hapd->ap_pin_failures++;
 451         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
 452                    hapd->ap_pin_failures);
 453         if (hapd->ap_pin_failures < 3)
 454                 return;
 455
 456         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_LOCKED);
 457         hapd->wps->ap_setup_locked = 1;
 458
 459         wps_registrar_update_ie(hapd->wps->registrar);
 460
 461         if (!hapd->conf->ap_setup_locked) {
 462                 if (hapd->ap_pin_lockout_time == 0)
 463                         hapd->ap_pin_lockout_time = 60;
 464                 else if (hapd->ap_pin_lockout_time < 365 * 24 * 60 * 60 &&
 465                          (hapd->ap_pin_failures % 3) == 0)
 466                         hapd->ap_pin_lockout_time *= 2;
 467
 468                 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN for %u seconds",
 469                            hapd->ap_pin_lockout_time);
 470                 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
 471                 eloop_register_timeout(hapd->ap_pin_lockout_time, 0,
 472                                        hostapd_wps_reenable_ap_pin, hapd,
 473                                        NULL);
 474         }
 475
 476         /* TODO: dualband AP may need to update other interfaces */
 477 }
 478
 479
 480 static void hostapd_wps_event_cb(void *ctx, enum wps_event event,
 481                                  union wps_event_data *data)
 482 {
 483         struct hostapd_data *hapd = ctx;
 484
 485         if (event == WPS_EV_PWD_AUTH_FAIL)
 486                 hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail);
 487 }
 488
 489
 490 static void hostapd_wps_clear_ies(struct hostapd_data *hapd)
 491 {
 492         wpabuf_free(hapd->wps_beacon_ie);
 493         hapd->wps_beacon_ie = NULL;
 494
 495         wpabuf_free(hapd->wps_probe_resp_ie);
 496         hapd->wps_probe_resp_ie = NULL;
 497
 498         hapd->drv.set_ap_wps_ie(hapd);
 499 }
 500
 501
 502 int hostapd_init_wps(struct hostapd_data *hapd,
 503                      struct hostapd_bss_config *conf)
 504 {
 505         struct wps_context *wps;
 506         struct wps_registrar_config cfg;
 507
 508         if (conf->wps_state == 0) {
 509                 hostapd_wps_clear_ies(hapd);
 510                 return 0;
 511         }
 512
 513         wps = os_zalloc(sizeof(*wps));
 514         if (wps == NULL)
 515                 return -1;
 516
 517         wps->cred_cb = hostapd_wps_cred_cb;
 518         wps->event_cb = hostapd_wps_event_cb;
 519         wps->cb_ctx = hapd;
 520
 521         os_memset(&cfg, 0, sizeof(cfg));
 522         wps->wps_state = hapd->conf->wps_state;
 523         wps->ap_setup_locked = hapd->conf->ap_setup_locked;
 524         if (is_nil_uuid(hapd->conf->uuid)) {
 525                 uuid_gen_mac_addr(hapd->own_addr, wps->uuid);
 526                 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC address",
 527                             wps->uuid, UUID_LEN);
 528         } else
 529                 os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN);
 530         wps->ssid_len = hapd->conf->ssid.ssid_len;
 531         os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len);
 532         wps->ap = 1;
 533         os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN);
 534         wps->dev.device_name = hapd->conf->device_name ?
 535                 os_strdup(hapd->conf->device_name) : NULL;
 536         wps->dev.manufacturer = hapd->conf->manufacturer ?
 537                 os_strdup(hapd->conf->manufacturer) : NULL;
 538         wps->dev.model_name = hapd->conf->model_name ?
 539                 os_strdup(hapd->conf->model_name) : NULL;
 540         wps->dev.model_number = hapd->conf->model_number ?
 541                 os_strdup(hapd->conf->model_number) : NULL;
 542         wps->dev.serial_number = hapd->conf->serial_number ?
 543                 os_strdup(hapd->conf->serial_number) : NULL;
 544         wps->config_methods =
 545                 wps_config_methods_str2bin(hapd->conf->config_methods);
 546         if (hapd->conf->device_type &&
 547             wps_dev_type_str2bin(hapd->conf->device_type,
 548                                  wps->dev.pri_dev_type) < 0) {
 549                 wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
 550                 os_free(wps);
 551                 return -1;
 552         }
 553         wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version);
 554         wps->dev.rf_bands = hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
 555                 WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
 556
 557         if (conf->wpa & WPA_PROTO_RSN) {
 558                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
 559                         wps->auth_types |= WPS_AUTH_WPA2PSK;
 560                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 561                         wps->auth_types |= WPS_AUTH_WPA2;
 562
 563                 if (conf->rsn_pairwise & WPA_CIPHER_CCMP)
 564                         wps->encr_types |= WPS_ENCR_AES;
 565                 if (conf->rsn_pairwise & WPA_CIPHER_TKIP)
 566                         wps->encr_types |= WPS_ENCR_TKIP;
 567         }
 568
 569         if (conf->wpa & WPA_PROTO_WPA) {
 570                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
 571                         wps->auth_types |= WPS_AUTH_WPAPSK;
 572                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 573                         wps->auth_types |= WPS_AUTH_WPA;
 574
 575                 if (conf->wpa_pairwise & WPA_CIPHER_CCMP)
 576                         wps->encr_types |= WPS_ENCR_AES;
 577                 if (conf->wpa_pairwise & WPA_CIPHER_TKIP)
 578                         wps->encr_types |= WPS_ENCR_TKIP;
 579         }
 580
 581         if (conf->ssid.security_policy == SECURITY_PLAINTEXT) {
 582                 wps->encr_types |= WPS_ENCR_NONE;
 583                 wps->auth_types |= WPS_AUTH_OPEN;
 584         } else if (conf->ssid.security_policy == SECURITY_STATIC_WEP) {
 585                 wps->encr_types |= WPS_ENCR_WEP;
 586                 if (conf->auth_algs & WPA_AUTH_ALG_OPEN)
 587                         wps->auth_types |= WPS_AUTH_OPEN;
 588                 if (conf->auth_algs & WPA_AUTH_ALG_SHARED)
 589                         wps->auth_types |= WPS_AUTH_SHARED;
 590         } else if (conf->ssid.security_policy == SECURITY_IEEE_802_1X) {
 591                 wps->auth_types |= WPS_AUTH_OPEN;
 592                 if (conf->default_wep_key_len)
 593                         wps->encr_types |= WPS_ENCR_WEP;
 594                 else
 595                         wps->encr_types |= WPS_ENCR_NONE;
 596         }
 597
 598         if (conf->ssid.wpa_psk_file) {
 599                 /* Use per-device PSKs */
 600         } else if (conf->ssid.wpa_passphrase) {
 601                 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase);
 602                 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase);
 603         } else if (conf->ssid.wpa_psk) {
 604                 wps->network_key = os_malloc(2 * PMK_LEN + 1);
 605                 if (wps->network_key == NULL) {
 606                         os_free(wps);
 607                         return -1;
 608                 }
 609                 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1,
 610                                  conf->ssid.wpa_psk->psk, PMK_LEN);
 611                 wps->network_key_len = 2 * PMK_LEN;
 612         } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) {
 613                 wps->network_key = os_malloc(conf->ssid.wep.len[0]);
 614                 if (wps->network_key == NULL) {
 615                         os_free(wps);
 616                         return -1;
 617                 }
 618                 os_memcpy(wps->network_key, conf->ssid.wep.key[0],
 619                           conf->ssid.wep.len[0]);
 620                 wps->network_key_len = conf->ssid.wep.len[0];
 621         }
 622
 623         if (conf->ssid.wpa_psk) {
 624                 os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN);
 625                 wps->psk_set = 1;
 626         }
 627
 628         if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) {
 629                 /* Override parameters to enable security by default */
 630                 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
 631                 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
 632         }
 633
 634         wps->ap_settings = conf->ap_settings;
 635         wps->ap_settings_len = conf->ap_settings_len;
 636
 637         cfg.new_psk_cb = hostapd_wps_new_psk_cb;
 638         cfg.set_ie_cb = hostapd_wps_set_ie_cb;
 639         cfg.pin_needed_cb = hostapd_wps_pin_needed_cb;
 640         cfg.reg_success_cb = hostapd_wps_reg_success_cb;
 641         cfg.enrollee_seen_cb = hostapd_wps_enrollee_seen_cb;
 642         cfg.cb_ctx = hapd;
 643         cfg.skip_cred_build = conf->skip_cred_build;
 644         cfg.extra_cred = conf->extra_cred;
 645         cfg.extra_cred_len = conf->extra_cred_len;
 646         cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) &&
 647                 conf->skip_cred_build;
 648         if (conf->ssid.security_policy == SECURITY_STATIC_WEP)
 649                 cfg.static_wep_only = 1;
 650
 651         wps->registrar = wps_registrar_init(wps, &cfg);
 652         if (wps->registrar == NULL) {
 653                 printf("Failed to initialize WPS Registrar\n");
 654                 os_free(wps->network_key);
 655                 os_free(wps);
 656                 return -1;
 657         }
 658
 659 #ifdef CONFIG_WPS_UPNP
 660         wps->friendly_name = hapd->conf->friendly_name;
 661         wps->manufacturer_url = hapd->conf->manufacturer_url;
 662         wps->model_description = hapd->conf->model_description;
 663         wps->model_url = hapd->conf->model_url;
 664         wps->upc = hapd->conf->upc;
 665
 666         if (hostapd_wps_upnp_init(hapd, wps) < 0) {
 667                 wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP");
 668                 wps_registrar_deinit(wps->registrar);
 669                 os_free(wps->network_key);
 670                 os_free(wps);
 671                 return -1;
 672         }
 673 #endif /* CONFIG_WPS_UPNP */
 674
 675         hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd);
 676
 677         hapd->wps = wps;
 678
 679         return 0;
 680 }
 681
 682
 683 void hostapd_deinit_wps(struct hostapd_data *hapd)
 684 {
 685         eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
 686         if (hapd->wps == NULL)
 687                 return;
 688 #ifdef CONFIG_WPS_UPNP
 689         hostapd_wps_upnp_deinit(hapd);
 690 #endif /* CONFIG_WPS_UPNP */
 691         wps_registrar_deinit(hapd->wps->registrar);
 692         os_free(hapd->wps->network_key);
 693         wps_device_data_free(&hapd->wps->dev);
 694         wpabuf_free(hapd->wps->dh_pubkey);
 695         wpabuf_free(hapd->wps->dh_privkey);
 696         wpabuf_free(hapd->wps->oob_conf.pubkey_hash);
 697         wpabuf_free(hapd->wps->oob_conf.dev_password);
 698         wps_free_pending_msgs(hapd->wps->upnp_msgs);
 699         os_free(hapd->wps);
 700         hapd->wps = NULL;
 701         hostapd_wps_clear_ies(hapd);
 702 }
 703
 704
 705 void hostapd_update_wps(struct hostapd_data *hapd)
 706 {
 707         if (hapd->wps == NULL)
 708                 return;
 709         if (hapd->conf->wps_state)
 710                 wps_registrar_update_ie(hapd->wps->registrar);
 711         else
 712                 hostapd_deinit_wps(hapd);
 713 }
 714
 715
 716 int hostapd_wps_add_pin(struct hostapd_data *hapd, const char *uuid,
 717                         const char *pin, int timeout)
 718 {
 719         u8 u[UUID_LEN];
 720         int any = 0;
 721
 722         if (hapd->wps == NULL)
 723                 return -1;
 724         if (os_strcmp(uuid, "any") == 0)
 725                 any = 1;
 726         else if (uuid_str2bin(uuid, u))
 727                 return -1;
 728         return wps_registrar_add_pin(hapd->wps->registrar, any ? NULL : u,
 729                                      (const u8 *) pin, os_strlen(pin),
 730                                      timeout);
 731 }
 732
 733
 734 int hostapd_wps_button_pushed(struct hostapd_data *hapd)
 735 {
 736         if (hapd->wps == NULL)
 737                 return -1;
 738         return wps_registrar_button_pushed(hapd->wps->registrar);
 739 }
 740
 741
 742 #ifdef CONFIG_WPS_OOB
 743 int hostapd_wps_start_oob(struct hostapd_data *hapd, char *device_type,
 744                           char *path, char *method, char *name)
 745 {
 746         struct wps_context *wps = hapd->wps;
 747         struct oob_device_data *oob_dev;
 748
 749         oob_dev = wps_get_oob_device(device_type);
 750         if (oob_dev == NULL)
 751                 return -1;
 752         oob_dev->device_path = path;
 753         oob_dev->device_name = name;
 754         wps->oob_conf.oob_method = wps_get_oob_method(method);
 755
 756         if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) {
 757                 /*
 758                  * Use pre-configured DH keys in order to be able to write the
 759                  * key hash into the OOB file.
 760                  */
 761                 wpabuf_free(wps->dh_pubkey);
 762                 wpabuf_free(wps->dh_privkey);
 763                 wps->dh_privkey = NULL;
 764                 wps->dh_pubkey = dh_init(dh_groups_get(WPS_DH_GROUP),
 765                                          &wps->dh_privkey);
 766                 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
 767                 if (wps->dh_pubkey == NULL) {
 768                         wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
 769                                    "Diffie-Hellman handshake");
 770                         return -1;
 771                 }
 772         }
 773
 774         if (wps_process_oob(wps, oob_dev, 1) < 0)
 775                 goto error;
 776
 777         if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
 778              wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
 779             hostapd_wps_add_pin(hapd, "any",
 780                                 wpabuf_head(wps->oob_conf.dev_password), 0) <
 781             0)
 782                 goto error;
 783
 784         return 0;
 785
 786 error:
 787         wpabuf_free(wps->dh_pubkey);
 788         wps->dh_pubkey = NULL;
 789         wpabuf_free(wps->dh_privkey);
 790         wps->dh_privkey = NULL;
 791         return -1;
 792 }
 793 #endif /* CONFIG_WPS_OOB */
 794
 795
 796 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr,
 797                                     const u8 *ie, size_t ie_len)
 798 {
 799         struct hostapd_data *hapd = ctx;
 800         struct wpabuf *wps_ie;
 801         struct ieee802_11_elems elems;
 802
 803         if (hapd->wps == NULL)
 804                 return 0;
 805
 806         if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) {
 807                 wpa_printf(MSG_DEBUG, "WPS: Could not parse ProbeReq from "
 808                            MACSTR, MAC2STR(addr));
 809                 return 0;
 810         }
 811
 812         if (elems.ssid && elems.ssid_len > 0 &&
 813             (elems.ssid_len != hapd->conf->ssid.ssid_len ||
 814              os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) !=
 815              0))
 816                 return 0; /* Not for us */
 817
 818         wps_ie = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
 819         if (wps_ie == NULL)
 820                 return 0;
 821
 822         if (wpabuf_len(wps_ie) > 0) {
 823                 wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie);
 824 #ifdef CONFIG_WPS_UPNP
 825                 /* FIX: what exactly should be included in the WLANEvent?
 826                  * WPS attributes? Full ProbeReq frame? */
 827                 upnp_wps_device_send_wlan_event(hapd->wps_upnp, addr,
 828                                                 UPNP_WPS_WLANEVENT_TYPE_PROBE,
 829                                                 wps_ie);
 830 #endif /* CONFIG_WPS_UPNP */
 831         }
 832
 833         wpabuf_free(wps_ie);
 834
 835         return 0;
 836 }
 837
 838
 839 #ifdef CONFIG_WPS_UPNP
 840
 841 static int hostapd_rx_req_put_wlan_response(
 842         void *priv, enum upnp_wps_wlanevent_type ev_type,
 843         const u8 *mac_addr, const struct wpabuf *msg,
 844         enum wps_msg_type msg_type)
 845 {
 846         struct hostapd_data *hapd = priv;
 847         struct sta_info *sta;
 848         struct upnp_pending_message *p;
 849
 850         wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr="
 851                    MACSTR, ev_type, MAC2STR(mac_addr));
 852         wpa_hexdump(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage",
 853                     wpabuf_head(msg), wpabuf_len(msg));
 854         if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) {
 855                 wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected "
 856                            "PutWLANResponse WLANEventType %d", ev_type);
 857                 return -1;
 858         }
 859
 860         /*
 861          * EAP response to ongoing to WPS Registration. Send it to EAP-WSC
 862          * server implementation for delivery to the peer.
 863          */
 864
 865         sta = ap_get_sta(hapd, mac_addr);
 866         if (!sta) {
 867                 /*
 868                  * Workaround - Intel wsccmd uses bogus NewWLANEventMAC:
 869                  * Pick STA that is in an ongoing WPS registration without
 870                  * checking the MAC address.
 871                  */
 872                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based "
 873                            "on NewWLANEventMAC; try wildcard match");
 874                 for (sta = hapd->sta_list; sta; sta = sta->next) {
 875                         if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS))
 876                                 break;
 877                 }
 878         }
 879
 880         if (!sta) {
 881                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found");
 882                 return 0;
 883         }
 884
 885         p = os_zalloc(sizeof(*p));
 886         if (p == NULL)
 887                 return -1;
 888         os_memcpy(p->addr, sta->addr, ETH_ALEN);
 889         p->msg = wpabuf_dup(msg);
 890         p->type = msg_type;
 891         p->next = hapd->wps->upnp_msgs;
 892         hapd->wps->upnp_msgs = p;
 893
 894         return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap);
 895 }
 896
 897
 898 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
 899                                  struct wps_context *wps)
 900 {
 901         struct upnp_wps_device_ctx *ctx;
 902
 903         if (!hapd->conf->upnp_iface)
 904                 return 0;
 905         ctx = os_zalloc(sizeof(*ctx));
 906         if (ctx == NULL)
 907                 return -1;
 908
 909         ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response;
 910         if (hapd->conf->ap_pin)
 911                 ctx->ap_pin = os_strdup(hapd->conf->ap_pin);
 912
 913         hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd);
 914         if (hapd->wps_upnp == NULL) {
 915                 os_free(ctx);
 916                 return -1;
 917         }
 918         wps->wps_upnp = hapd->wps_upnp;
 919
 920         if (upnp_wps_device_start(hapd->wps_upnp, hapd->conf->upnp_iface)) {
 921                 upnp_wps_device_deinit(hapd->wps_upnp);
 922                 hapd->wps_upnp = NULL;
 923                 return -1;
 924         }
 925
 926         return 0;
 927 }
 928
 929
 930 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd)
 931 {
 932         upnp_wps_device_deinit(hapd->wps_upnp);
 933 }
 934
 935 #endif /* CONFIG_WPS_UPNP */
 936
 937
 938 int hostapd_wps_get_mib_sta(struct hostapd_data *hapd, const u8 *addr,
 939                             char *buf, size_t buflen)
 940 {
 941         if (hapd->wps == NULL)
 942                 return 0;
 943         return wps_registrar_get_info(hapd->wps->registrar, addr, buf, buflen);
 944 }