src/ap/wps_hostapd.c

   1 /*
   2  * hostapd / WPS integration
   3  * Copyright (c) 2008-2010, 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 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
  46
  47
  48 struct wps_for_each_data {
  49         int (*func)(struct hostapd_data *h, void *ctx);
  50         void *ctx;
  51 };
  52
  53
  54 static int wps_for_each(struct hostapd_iface *iface, void *ctx)
  55 {
  56         struct wps_for_each_data *data = ctx;
  57         size_t j;
  58
  59         if (iface == NULL)
  60                 return 0;
  61         for (j = 0; j < iface->num_bss; j++) {
  62                 struct hostapd_data *hapd = iface->bss[j];
  63                 int ret = data->func(hapd, data->ctx);
  64                 if (ret)
  65                         return ret;
  66         }
  67
  68         return 0;
  69 }
  70
  71
  72 static int hostapd_wps_for_each(struct hostapd_data *hapd,
  73                                 int (*func)(struct hostapd_data *h, void *ctx),
  74                                 void *ctx)
  75 {
  76         struct hostapd_iface *iface = hapd->iface;
  77         struct wps_for_each_data data;
  78         data.func = func;
  79         data.ctx = ctx;
  80         if (iface->for_each_interface == NULL)
  81                 return wps_for_each(iface, &data);
  82         return iface->for_each_interface(iface->interfaces, wps_for_each,
  83                                          &data);
  84 }
  85
  86
  87 static int hostapd_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
  88                                   size_t psk_len)
  89 {
  90         struct hostapd_data *hapd = ctx;
  91         struct hostapd_wpa_psk *p;
  92         struct hostapd_ssid *ssid = &hapd->conf->ssid;
  93
  94         wpa_printf(MSG_DEBUG, "Received new WPA/WPA2-PSK from WPS for STA "
  95                    MACSTR, MAC2STR(mac_addr));
  96         wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
  97
  98         if (psk_len != PMK_LEN) {
  99                 wpa_printf(MSG_DEBUG, "Unexpected PSK length %lu",
 100                            (unsigned long) psk_len);
 101                 return -1;
 102         }
 103
 104         /* Add the new PSK to runtime PSK list */
 105         p = os_zalloc(sizeof(*p));
 106         if (p == NULL)
 107                 return -1;
 108         os_memcpy(p->addr, mac_addr, ETH_ALEN);
 109         os_memcpy(p->psk, psk, PMK_LEN);
 110
 111         p->next = ssid->wpa_psk;
 112         ssid->wpa_psk = p;
 113
 114         if (ssid->wpa_psk_file) {
 115                 FILE *f;
 116                 char hex[PMK_LEN * 2 + 1];
 117                 /* Add the new PSK to PSK list file */
 118                 f = fopen(ssid->wpa_psk_file, "a");
 119                 if (f == NULL) {
 120                         wpa_printf(MSG_DEBUG, "Failed to add the PSK to "
 121                                    "'%s'", ssid->wpa_psk_file);
 122                         return -1;
 123                 }
 124
 125                 wpa_snprintf_hex(hex, sizeof(hex), psk, psk_len);
 126                 fprintf(f, MACSTR " %s\n", MAC2STR(mac_addr), hex);
 127                 fclose(f);
 128         }
 129
 130         return 0;
 131 }
 132
 133
 134 static int hostapd_wps_set_ie_cb(void *ctx, struct wpabuf *beacon_ie,
 135                                  struct wpabuf *probe_resp_ie)
 136 {
 137         struct hostapd_data *hapd = ctx;
 138         wpabuf_free(hapd->wps_beacon_ie);
 139         hapd->wps_beacon_ie = beacon_ie;
 140         wpabuf_free(hapd->wps_probe_resp_ie);
 141         hapd->wps_probe_resp_ie = probe_resp_ie;
 142         ieee802_11_set_beacon(hapd);
 143         return hapd->drv.set_ap_wps_ie(hapd);
 144 }
 145
 146
 147 static void hostapd_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
 148                                       const struct wps_device_data *dev)
 149 {
 150         struct hostapd_data *hapd = ctx;
 151         char uuid[40], txt[400];
 152         int len;
 153         char devtype[WPS_DEV_TYPE_BUFSIZE];
 154         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 155                 return;
 156         wpa_printf(MSG_DEBUG, "WPS: PIN needed for E-UUID %s", uuid);
 157         len = os_snprintf(txt, sizeof(txt), WPS_EVENT_PIN_NEEDED
 158                           "%s " MACSTR " [%s|%s|%s|%s|%s|%s]",
 159                           uuid, MAC2STR(dev->mac_addr), dev->device_name,
 160                           dev->manufacturer, dev->model_name,
 161                           dev->model_number, dev->serial_number,
 162                           wps_dev_type_bin2str(dev->pri_dev_type, devtype,
 163                                                sizeof(devtype)));
 164         if (len > 0 && len < (int) sizeof(txt))
 165                 wpa_msg(hapd->msg_ctx, MSG_INFO, "%s", txt);
 166
 167         if (hapd->conf->wps_pin_requests) {
 168                 FILE *f;
 169                 struct os_time t;
 170                 f = fopen(hapd->conf->wps_pin_requests, "a");
 171                 if (f == NULL)
 172                         return;
 173                 os_get_time(&t);
 174                 fprintf(f, "%ld\t%s\t" MACSTR "\t%s\t%s\t%s\t%s\t%s"
 175                         "\t%s\n",
 176                         t.sec, uuid, MAC2STR(dev->mac_addr), dev->device_name,
 177                         dev->manufacturer, dev->model_name, dev->model_number,
 178                         dev->serial_number,
 179                         wps_dev_type_bin2str(dev->pri_dev_type, devtype,
 180                                              sizeof(devtype)));
 181                 fclose(f);
 182         }
 183 }
 184
 185
 186 static void hostapd_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 187                                        const u8 *uuid_e)
 188 {
 189         struct hostapd_data *hapd = ctx;
 190         char uuid[40];
 191         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 192                 return;
 193         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s",
 194                 MAC2STR(mac_addr), uuid);
 195         if (hapd->wps_reg_success_cb)
 196                 hapd->wps_reg_success_cb(hapd->wps_reg_success_cb_ctx,
 197                                          mac_addr, uuid_e);
 198 }
 199
 200
 201 static void hostapd_wps_enrollee_seen_cb(void *ctx, const u8 *addr,
 202                                          const u8 *uuid_e,
 203                                          const u8 *pri_dev_type,
 204                                          u16 config_methods,
 205                                          u16 dev_password_id, u8 request_type,
 206                                          const char *dev_name)
 207 {
 208         struct hostapd_data *hapd = ctx;
 209         char uuid[40];
 210         char devtype[WPS_DEV_TYPE_BUFSIZE];
 211         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 212                 return;
 213         if (dev_name == NULL)
 214                 dev_name = "";
 215         wpa_msg_ctrl(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ENROLLEE_SEEN MACSTR
 216                      " %s %s 0x%x %u %u [%s]",
 217                      MAC2STR(addr), uuid,
 218                      wps_dev_type_bin2str(pri_dev_type, devtype,
 219                                           sizeof(devtype)),
 220                      config_methods, dev_password_id, request_type, dev_name);
 221 }
 222
 223
 224 static int str_starts(const char *str, const char *start)
 225 {
 226         return os_strncmp(str, start, os_strlen(start)) == 0;
 227 }
 228
 229
 230 static void wps_reload_config(void *eloop_data, void *user_ctx)
 231 {
 232         struct hostapd_iface *iface = eloop_data;
 233
 234         wpa_printf(MSG_DEBUG, "WPS: Reload configuration data");
 235         if (iface->reload_config(iface) < 0) {
 236                 wpa_printf(MSG_WARNING, "WPS: Failed to reload the updated "
 237                            "configuration");
 238         }
 239 }
 240
 241
 242 static int hapd_wps_cred_cb(struct hostapd_data *hapd, void *ctx)
 243 {
 244         const struct wps_credential *cred = ctx;
 245         FILE *oconf, *nconf;
 246         size_t len, i;
 247         char *tmp_fname;
 248         char buf[1024];
 249         int multi_bss;
 250         int wpa;
 251
 252         if (hapd->wps == NULL)
 253                 return 0;
 254
 255         wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
 256                         cred->cred_attr, cred->cred_attr_len);
 257
 258         wpa_printf(MSG_DEBUG, "WPS: Received new AP Settings");
 259         wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
 260         wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
 261                    cred->auth_type);
 262         wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
 263         wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
 264         wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
 265                         cred->key, cred->key_len);
 266         wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
 267                    MAC2STR(cred->mac_addr));
 268
 269         if ((hapd->conf->wps_cred_processing == 1 ||
 270              hapd->conf->wps_cred_processing == 2) && cred->cred_attr) {
 271                 size_t blen = cred->cred_attr_len * 2 + 1;
 272                 char *_buf = os_malloc(blen);
 273                 if (_buf) {
 274                         wpa_snprintf_hex(_buf, blen,
 275                                          cred->cred_attr, cred->cred_attr_len);
 276                         wpa_msg(hapd->msg_ctx, MSG_INFO, "%s%s",
 277                                 WPS_EVENT_NEW_AP_SETTINGS, _buf);
 278                         os_free(_buf);
 279                 }
 280         } else
 281                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS);
 282
 283         if (hapd->conf->wps_cred_processing == 1)
 284                 return 0;
 285
 286         os_memcpy(hapd->wps->ssid, cred->ssid, cred->ssid_len);
 287         hapd->wps->ssid_len = cred->ssid_len;
 288         hapd->wps->encr_types = cred->encr_type;
 289         hapd->wps->auth_types = cred->auth_type;
 290         if (cred->key_len == 0) {
 291                 os_free(hapd->wps->network_key);
 292                 hapd->wps->network_key = NULL;
 293                 hapd->wps->network_key_len = 0;
 294         } else {
 295                 if (hapd->wps->network_key == NULL ||
 296                     hapd->wps->network_key_len < cred->key_len) {
 297                         hapd->wps->network_key_len = 0;
 298                         os_free(hapd->wps->network_key);
 299                         hapd->wps->network_key = os_malloc(cred->key_len);
 300                         if (hapd->wps->network_key == NULL)
 301                                 return -1;
 302                 }
 303                 hapd->wps->network_key_len = cred->key_len;
 304                 os_memcpy(hapd->wps->network_key, cred->key, cred->key_len);
 305         }
 306         hapd->wps->wps_state = WPS_STATE_CONFIGURED;
 307
 308         len = os_strlen(hapd->iface->config_fname) + 5;
 309         tmp_fname = os_malloc(len);
 310         if (tmp_fname == NULL)
 311                 return -1;
 312         os_snprintf(tmp_fname, len, "%s-new", hapd->iface->config_fname);
 313
 314         oconf = fopen(hapd->iface->config_fname, "r");
 315         if (oconf == NULL) {
 316                 wpa_printf(MSG_WARNING, "WPS: Could not open current "
 317                            "configuration file");
 318                 os_free(tmp_fname);
 319                 return -1;
 320         }
 321
 322         nconf = fopen(tmp_fname, "w");
 323         if (nconf == NULL) {
 324                 wpa_printf(MSG_WARNING, "WPS: Could not write updated "
 325                            "configuration file");
 326                 os_free(tmp_fname);
 327                 fclose(oconf);
 328                 return -1;
 329         }
 330
 331         fprintf(nconf, "# WPS configuration - START\n");
 332
 333         fprintf(nconf, "wps_state=2\n");
 334
 335         fprintf(nconf, "ssid=");
 336         for (i = 0; i < cred->ssid_len; i++)
 337                 fputc(cred->ssid[i], nconf);
 338         fprintf(nconf, "\n");
 339
 340         if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
 341             (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
 342                 wpa = 3;
 343         else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
 344                 wpa = 2;
 345         else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
 346                 wpa = 1;
 347         else
 348                 wpa = 0;
 349
 350         if (wpa) {
 351                 char *prefix;
 352                 fprintf(nconf, "wpa=%d\n", wpa);
 353
 354                 fprintf(nconf, "wpa_key_mgmt=");
 355                 prefix = "";
 356                 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA)) {
 357                         fprintf(nconf, "WPA-EAP");
 358                         prefix = " ";
 359                 }
 360                 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK))
 361                         fprintf(nconf, "%sWPA-PSK", prefix);
 362                 fprintf(nconf, "\n");
 363
 364                 fprintf(nconf, "wpa_pairwise=");
 365                 prefix = "";
 366                 if (cred->encr_type & WPS_ENCR_AES) {
 367                         fprintf(nconf, "CCMP");
 368                         prefix = " ";
 369                 }
 370                 if (cred->encr_type & WPS_ENCR_TKIP) {
 371                         fprintf(nconf, "%sTKIP", prefix);
 372                 }
 373                 fprintf(nconf, "\n");
 374
 375                 if (cred->key_len >= 8 && cred->key_len < 64) {
 376                         fprintf(nconf, "wpa_passphrase=");
 377                         for (i = 0; i < cred->key_len; i++)
 378                                 fputc(cred->key[i], nconf);
 379                         fprintf(nconf, "\n");
 380                 } else if (cred->key_len == 64) {
 381                         fprintf(nconf, "wpa_psk=");
 382                         for (i = 0; i < cred->key_len; i++)
 383                                 fputc(cred->key[i], nconf);
 384                         fprintf(nconf, "\n");
 385                 } else {
 386                         wpa_printf(MSG_WARNING, "WPS: Invalid key length %lu "
 387                                    "for WPA/WPA2",
 388                                    (unsigned long) cred->key_len);
 389                 }
 390
 391                 fprintf(nconf, "auth_algs=1\n");
 392         } else {
 393                 if ((cred->auth_type & WPS_AUTH_OPEN) &&
 394                     (cred->auth_type & WPS_AUTH_SHARED))
 395                         fprintf(nconf, "auth_algs=3\n");
 396                 else if (cred->auth_type & WPS_AUTH_SHARED)
 397                         fprintf(nconf, "auth_algs=2\n");
 398                 else
 399                         fprintf(nconf, "auth_algs=1\n");
 400
 401                 if (cred->encr_type & WPS_ENCR_WEP && cred->key_idx <= 4) {
 402                         int key_idx = cred->key_idx;
 403                         if (key_idx)
 404                                 key_idx--;
 405                         fprintf(nconf, "wep_default_key=%d\n", key_idx);
 406                         fprintf(nconf, "wep_key%d=", key_idx);
 407                         if (cred->key_len == 10 || cred->key_len == 26) {
 408                                 /* WEP key as a hex string */
 409                                 for (i = 0; i < cred->key_len; i++)
 410                                         fputc(cred->key[i], nconf);
 411                         } else {
 412                                 /* Raw WEP key; convert to hex */
 413                                 for (i = 0; i < cred->key_len; i++)
 414                                         fprintf(nconf, "%02x", cred->key[i]);
 415                         }
 416                         fprintf(nconf, "\n");
 417                 }
 418         }
 419
 420         fprintf(nconf, "# WPS configuration - END\n");
 421
 422         multi_bss = 0;
 423         while (fgets(buf, sizeof(buf), oconf)) {
 424                 if (os_strncmp(buf, "bss=", 4) == 0)
 425                         multi_bss = 1;
 426                 if (!multi_bss &&
 427                     (str_starts(buf, "ssid=") ||
 428                      str_starts(buf, "auth_algs=") ||
 429                      str_starts(buf, "wps_state=") ||
 430                      str_starts(buf, "wpa=") ||
 431                      str_starts(buf, "wpa_psk=") ||
 432                      str_starts(buf, "wpa_pairwise=") ||
 433                      str_starts(buf, "rsn_pairwise=") ||
 434                      str_starts(buf, "wpa_key_mgmt=") ||
 435                      str_starts(buf, "wpa_passphrase="))) {
 436                         fprintf(nconf, "#WPS# %s", buf);
 437                 } else
 438                         fprintf(nconf, "%s", buf);
 439         }
 440
 441         fclose(nconf);
 442         fclose(oconf);
 443
 444         if (rename(tmp_fname, hapd->iface->config_fname) < 0) {
 445                 wpa_printf(MSG_WARNING, "WPS: Failed to rename the updated "
 446                            "configuration file: %s", strerror(errno));
 447                 os_free(tmp_fname);
 448                 return -1;
 449         }
 450
 451         os_free(tmp_fname);
 452
 453         /* Schedule configuration reload after short period of time to allow
 454          * EAP-WSC to be finished.
 455          */
 456         eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
 457                                NULL);
 458
 459         wpa_printf(MSG_DEBUG, "WPS: AP configuration updated");
 460
 461         return 0;
 462 }
 463
 464
 465 static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred)
 466 {
 467         struct hostapd_data *hapd = ctx;
 468         return hostapd_wps_for_each(hapd, hapd_wps_cred_cb, (void *) cred);
 469 }
 470
 471
 472 static void hostapd_wps_reenable_ap_pin(void *eloop_data, void *user_ctx)
 473 {
 474         struct hostapd_data *hapd = eloop_data;
 475
 476         if (hapd->conf->ap_setup_locked)
 477                 return;
 478
 479         wpa_printf(MSG_DEBUG, "WPS: Re-enable AP PIN");
 480         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
 481         hapd->wps->ap_setup_locked = 0;
 482         wps_registrar_update_ie(hapd->wps->registrar);
 483 }
 484
 485
 486 static int wps_pwd_auth_fail(struct hostapd_data *hapd, void *ctx)
 487 {
 488         struct wps_event_pwd_auth_fail *data = ctx;
 489
 490         if (!data->enrollee || hapd->conf->ap_pin == NULL || hapd->wps == NULL)
 491                 return 0;
 492
 493         /*
 494          * Registrar failed to prove its knowledge of the AP PIN. Lock AP setup
 495          * for some time if this happens multiple times to slow down brute
 496          * force attacks.
 497          */
 498         hapd->ap_pin_failures++;
 499         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
 500                    hapd->ap_pin_failures);
 501         if (hapd->ap_pin_failures < 3)
 502                 return 0;
 503
 504         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_LOCKED);
 505         hapd->wps->ap_setup_locked = 1;
 506
 507         wps_registrar_update_ie(hapd->wps->registrar);
 508
 509         if (!hapd->conf->ap_setup_locked) {
 510                 if (hapd->ap_pin_lockout_time == 0)
 511                         hapd->ap_pin_lockout_time = 60;
 512                 else if (hapd->ap_pin_lockout_time < 365 * 24 * 60 * 60 &&
 513                          (hapd->ap_pin_failures % 3) == 0)
 514                         hapd->ap_pin_lockout_time *= 2;
 515
 516                 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN for %u seconds",
 517                            hapd->ap_pin_lockout_time);
 518                 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
 519                 eloop_register_timeout(hapd->ap_pin_lockout_time, 0,
 520                                        hostapd_wps_reenable_ap_pin, hapd,
 521                                        NULL);
 522         }
 523
 524         return 0;
 525 }
 526
 527
 528 static void hostapd_pwd_auth_fail(struct hostapd_data *hapd,
 529                                   struct wps_event_pwd_auth_fail *data)
 530 {
 531         hostapd_wps_for_each(hapd, wps_pwd_auth_fail, data);
 532 }
 533
 534
 535 static void hostapd_wps_event_cb(void *ctx, enum wps_event event,
 536                                  union wps_event_data *data)
 537 {
 538         struct hostapd_data *hapd = ctx;
 539
 540         if (event == WPS_EV_PWD_AUTH_FAIL)
 541                 hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail);
 542 }
 543
 544
 545 static void hostapd_wps_clear_ies(struct hostapd_data *hapd)
 546 {
 547         wpabuf_free(hapd->wps_beacon_ie);
 548         hapd->wps_beacon_ie = NULL;
 549
 550         wpabuf_free(hapd->wps_probe_resp_ie);
 551         hapd->wps_probe_resp_ie = NULL;
 552
 553         hapd->drv.set_ap_wps_ie(hapd);
 554 }
 555
 556
 557 static int get_uuid_cb(struct hostapd_iface *iface, void *ctx)
 558 {
 559         const u8 **uuid = ctx;
 560         size_t j;
 561
 562         if (iface == NULL)
 563                 return 0;
 564         for (j = 0; j < iface->num_bss; j++) {
 565                 struct hostapd_data *hapd = iface->bss[j];
 566                 if (hapd->wps && !is_nil_uuid(hapd->wps->uuid)) {
 567                         *uuid = hapd->wps->uuid;
 568                         return 1;
 569                 }
 570         }
 571
 572         return 0;
 573 }
 574
 575
 576 static const u8 * get_own_uuid(struct hostapd_iface *iface)
 577 {
 578         const u8 *uuid;
 579         if (iface->for_each_interface == NULL)
 580                 return NULL;
 581         uuid = NULL;
 582         iface->for_each_interface(iface->interfaces, get_uuid_cb, &uuid);
 583         return uuid;
 584 }
 585
 586
 587 static int count_interface_cb(struct hostapd_iface *iface, void *ctx)
 588 {
 589         int *count= ctx;
 590         (*count)++;
 591         return 0;
 592 }
 593
 594
 595 static int interface_count(struct hostapd_iface *iface)
 596 {
 597         int count = 0;
 598         if (iface->for_each_interface == NULL)
 599                 return 0;
 600         iface->for_each_interface(iface->interfaces, count_interface_cb,
 601                                   &count);
 602         return count;
 603 }
 604
 605
 606 int hostapd_init_wps(struct hostapd_data *hapd,
 607                      struct hostapd_bss_config *conf)
 608 {
 609         struct wps_context *wps;
 610         struct wps_registrar_config cfg;
 611
 612         if (conf->wps_state == 0) {
 613                 hostapd_wps_clear_ies(hapd);
 614                 return 0;
 615         }
 616
 617         wps = os_zalloc(sizeof(*wps));
 618         if (wps == NULL)
 619                 return -1;
 620
 621         wps->cred_cb = hostapd_wps_cred_cb;
 622         wps->event_cb = hostapd_wps_event_cb;
 623         wps->cb_ctx = hapd;
 624
 625         os_memset(&cfg, 0, sizeof(cfg));
 626         wps->wps_state = hapd->conf->wps_state;
 627         wps->ap_setup_locked = hapd->conf->ap_setup_locked;
 628         if (is_nil_uuid(hapd->conf->uuid)) {
 629                 const u8 *uuid;
 630                 uuid = get_own_uuid(hapd->iface);
 631                 if (uuid) {
 632                         os_memcpy(wps->uuid, uuid, UUID_LEN);
 633                         wpa_hexdump(MSG_DEBUG, "WPS: Clone UUID from another "
 634                                     "interface", wps->uuid, UUID_LEN);
 635                 } else {
 636                         uuid_gen_mac_addr(hapd->own_addr, wps->uuid);
 637                         wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
 638                                     "address", wps->uuid, UUID_LEN);
 639                 }
 640         } else {
 641                 os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN);
 642                 wpa_hexdump(MSG_DEBUG, "WPS: Use configured UUID",
 643                             wps->uuid, UUID_LEN);
 644         }
 645         wps->ssid_len = hapd->conf->ssid.ssid_len;
 646         os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len);
 647         wps->ap = 1;
 648         os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN);
 649         wps->dev.device_name = hapd->conf->device_name ?
 650                 os_strdup(hapd->conf->device_name) : NULL;
 651         wps->dev.manufacturer = hapd->conf->manufacturer ?
 652                 os_strdup(hapd->conf->manufacturer) : NULL;
 653         wps->dev.model_name = hapd->conf->model_name ?
 654                 os_strdup(hapd->conf->model_name) : NULL;
 655         wps->dev.model_number = hapd->conf->model_number ?
 656                 os_strdup(hapd->conf->model_number) : NULL;
 657         wps->dev.serial_number = hapd->conf->serial_number ?
 658                 os_strdup(hapd->conf->serial_number) : NULL;
 659         wps->config_methods =
 660                 wps_config_methods_str2bin(hapd->conf->config_methods);
 661 #ifdef CONFIG_WPS2
 662         if ((wps->config_methods &
 663              (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
 664               WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
 665                 wpa_printf(MSG_INFO, "WPS: Converting display to "
 666                            "virtual_display for WPS 2.0 compliance");
 667                 wps->config_methods |= WPS_CONFIG_VIRT_DISPLAY;
 668         }
 669         if ((wps->config_methods &
 670              (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
 671               WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
 672                 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
 673                            "virtual_push_button for WPS 2.0 compliance");
 674                 wps->config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
 675         }
 676 #endif /* CONFIG_WPS2 */
 677         if (hapd->conf->device_type &&
 678             wps_dev_type_str2bin(hapd->conf->device_type,
 679                                  wps->dev.pri_dev_type) < 0) {
 680                 wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
 681                 os_free(wps);
 682                 return -1;
 683         }
 684         wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version);
 685         wps->dev.rf_bands = hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
 686                 WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
 687
 688         if (conf->wpa & WPA_PROTO_RSN) {
 689                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
 690                         wps->auth_types |= WPS_AUTH_WPA2PSK;
 691                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 692                         wps->auth_types |= WPS_AUTH_WPA2;
 693
 694                 if (conf->rsn_pairwise & WPA_CIPHER_CCMP)
 695                         wps->encr_types |= WPS_ENCR_AES;
 696                 if (conf->rsn_pairwise & WPA_CIPHER_TKIP)
 697                         wps->encr_types |= WPS_ENCR_TKIP;
 698         }
 699
 700         if (conf->wpa & WPA_PROTO_WPA) {
 701                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
 702                         wps->auth_types |= WPS_AUTH_WPAPSK;
 703                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 704                         wps->auth_types |= WPS_AUTH_WPA;
 705
 706                 if (conf->wpa_pairwise & WPA_CIPHER_CCMP)
 707                         wps->encr_types |= WPS_ENCR_AES;
 708                 if (conf->wpa_pairwise & WPA_CIPHER_TKIP)
 709                         wps->encr_types |= WPS_ENCR_TKIP;
 710         }
 711
 712         if (conf->ssid.security_policy == SECURITY_PLAINTEXT) {
 713                 wps->encr_types |= WPS_ENCR_NONE;
 714                 wps->auth_types |= WPS_AUTH_OPEN;
 715         } else if (conf->ssid.security_policy == SECURITY_STATIC_WEP) {
 716                 wps->encr_types |= WPS_ENCR_WEP;
 717                 if (conf->auth_algs & WPA_AUTH_ALG_OPEN)
 718                         wps->auth_types |= WPS_AUTH_OPEN;
 719                 if (conf->auth_algs & WPA_AUTH_ALG_SHARED)
 720                         wps->auth_types |= WPS_AUTH_SHARED;
 721         } else if (conf->ssid.security_policy == SECURITY_IEEE_802_1X) {
 722                 wps->auth_types |= WPS_AUTH_OPEN;
 723                 if (conf->default_wep_key_len)
 724                         wps->encr_types |= WPS_ENCR_WEP;
 725                 else
 726                         wps->encr_types |= WPS_ENCR_NONE;
 727         }
 728
 729         if (conf->ssid.wpa_psk_file) {
 730                 /* Use per-device PSKs */
 731         } else if (conf->ssid.wpa_passphrase) {
 732                 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase);
 733                 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase);
 734         } else if (conf->ssid.wpa_psk) {
 735                 wps->network_key = os_malloc(2 * PMK_LEN + 1);
 736                 if (wps->network_key == NULL) {
 737                         os_free(wps);
 738                         return -1;
 739                 }
 740                 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1,
 741                                  conf->ssid.wpa_psk->psk, PMK_LEN);
 742                 wps->network_key_len = 2 * PMK_LEN;
 743         } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) {
 744                 wps->network_key = os_malloc(conf->ssid.wep.len[0]);
 745                 if (wps->network_key == NULL) {
 746                         os_free(wps);
 747                         return -1;
 748                 }
 749                 os_memcpy(wps->network_key, conf->ssid.wep.key[0],
 750                           conf->ssid.wep.len[0]);
 751                 wps->network_key_len = conf->ssid.wep.len[0];
 752         }
 753
 754         if (conf->ssid.wpa_psk) {
 755                 os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN);
 756                 wps->psk_set = 1;
 757         }
 758
 759         if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) {
 760                 /* Override parameters to enable security by default */
 761                 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
 762                 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
 763         }
 764
 765         wps->ap_settings = conf->ap_settings;
 766         wps->ap_settings_len = conf->ap_settings_len;
 767
 768         cfg.new_psk_cb = hostapd_wps_new_psk_cb;
 769         cfg.set_ie_cb = hostapd_wps_set_ie_cb;
 770         cfg.pin_needed_cb = hostapd_wps_pin_needed_cb;
 771         cfg.reg_success_cb = hostapd_wps_reg_success_cb;
 772         cfg.enrollee_seen_cb = hostapd_wps_enrollee_seen_cb;
 773         cfg.cb_ctx = hapd;
 774         cfg.skip_cred_build = conf->skip_cred_build;
 775         cfg.extra_cred = conf->extra_cred;
 776         cfg.extra_cred_len = conf->extra_cred_len;
 777         cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) &&
 778                 conf->skip_cred_build;
 779         if (conf->ssid.security_policy == SECURITY_STATIC_WEP)
 780                 cfg.static_wep_only = 1;
 781         cfg.dualband = interface_count(hapd->iface) > 1;
 782         if (cfg.dualband)
 783                 wpa_printf(MSG_DEBUG, "WPS: Dualband AP");
 784
 785         wps->registrar = wps_registrar_init(wps, &cfg);
 786         if (wps->registrar == NULL) {
 787                 wpa_printf(MSG_ERROR, "Failed to initialize WPS Registrar");
 788                 os_free(wps->network_key);
 789                 os_free(wps);
 790                 return -1;
 791         }
 792
 793 #ifdef CONFIG_WPS_UPNP
 794         wps->friendly_name = hapd->conf->friendly_name;
 795         wps->manufacturer_url = hapd->conf->manufacturer_url;
 796         wps->model_description = hapd->conf->model_description;
 797         wps->model_url = hapd->conf->model_url;
 798         wps->upc = hapd->conf->upc;
 799
 800         if (hostapd_wps_upnp_init(hapd, wps) < 0) {
 801                 wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP");
 802                 wps_registrar_deinit(wps->registrar);
 803                 os_free(wps->network_key);
 804                 os_free(wps);
 805                 return -1;
 806         }
 807 #endif /* CONFIG_WPS_UPNP */
 808
 809         hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd);
 810
 811         hapd->wps = wps;
 812
 813         return 0;
 814 }
 815
 816
 817 void hostapd_deinit_wps(struct hostapd_data *hapd)
 818 {
 819         eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
 820         eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
 821         if (hapd->wps == NULL)
 822                 return;
 823 #ifdef CONFIG_WPS_UPNP
 824         hostapd_wps_upnp_deinit(hapd);
 825 #endif /* CONFIG_WPS_UPNP */
 826         wps_registrar_deinit(hapd->wps->registrar);
 827         os_free(hapd->wps->network_key);
 828         wps_device_data_free(&hapd->wps->dev);
 829         wpabuf_free(hapd->wps->dh_pubkey);
 830         wpabuf_free(hapd->wps->dh_privkey);
 831         wpabuf_free(hapd->wps->oob_conf.pubkey_hash);
 832         wpabuf_free(hapd->wps->oob_conf.dev_password);
 833         wps_free_pending_msgs(hapd->wps->upnp_msgs);
 834         os_free(hapd->wps);
 835         hapd->wps = NULL;
 836         hostapd_wps_clear_ies(hapd);
 837 }
 838
 839
 840 void hostapd_update_wps(struct hostapd_data *hapd)
 841 {
 842         if (hapd->wps == NULL)
 843                 return;
 844
 845 #ifdef CONFIG_WPS_UPNP
 846         hapd->wps->friendly_name = hapd->conf->friendly_name;
 847         hapd->wps->manufacturer_url = hapd->conf->manufacturer_url;
 848         hapd->wps->model_description = hapd->conf->model_description;
 849         hapd->wps->model_url = hapd->conf->model_url;
 850         hapd->wps->upc = hapd->conf->upc;
 851 #endif /* CONFIG_WPS_UPNP */
 852
 853         if (hapd->conf->wps_state)
 854                 wps_registrar_update_ie(hapd->wps->registrar);
 855         else
 856                 hostapd_deinit_wps(hapd);
 857 }
 858
 859
 860 struct wps_add_pin_data {
 861         const u8 *addr;
 862         const u8 *uuid;
 863         const u8 *pin;
 864         size_t pin_len;
 865         int timeout;
 866         int added;
 867 };
 868
 869
 870 static int wps_add_pin(struct hostapd_data *hapd, void *ctx)
 871 {
 872         struct wps_add_pin_data *data = ctx;
 873         int ret;
 874
 875         if (hapd->wps == NULL)
 876                 return 0;
 877         ret = wps_registrar_add_pin(hapd->wps->registrar, data->addr,
 878                                     data->uuid, data->pin, data->pin_len,
 879                                     data->timeout);
 880         if (ret == 0)
 881                 data->added++;
 882         return ret;
 883 }
 884
 885
 886 int hostapd_wps_add_pin(struct hostapd_data *hapd, const u8 *addr,
 887                         const char *uuid, const char *pin, int timeout)
 888 {
 889         u8 u[UUID_LEN];
 890         struct wps_add_pin_data data;
 891
 892         data.addr = addr;
 893         data.uuid = u;
 894         data.pin = (const u8 *) pin;
 895         data.pin_len = os_strlen(pin);
 896         data.timeout = timeout;
 897         data.added = 0;
 898
 899         if (os_strcmp(uuid, "any") == 0)
 900                 data.uuid = NULL;
 901         else {
 902                 if (uuid_str2bin(uuid, u))
 903                         return -1;
 904                 data.uuid = u;
 905         }
 906         if (hostapd_wps_for_each(hapd, wps_add_pin, &data) < 0)
 907                 return -1;
 908         return data.added ? 0 : -1;
 909 }
 910
 911
 912 static int wps_button_pushed(struct hostapd_data *hapd, void *ctx)
 913 {
 914         if (hapd->wps == NULL)
 915                 return 0;
 916         return wps_registrar_button_pushed(hapd->wps->registrar);
 917 }
 918
 919
 920 int hostapd_wps_button_pushed(struct hostapd_data *hapd)
 921 {
 922         return hostapd_wps_for_each(hapd, wps_button_pushed, NULL);
 923 }
 924
 925
 926 #ifdef CONFIG_WPS_OOB
 927 int hostapd_wps_start_oob(struct hostapd_data *hapd, char *device_type,
 928                           char *path, char *method, char *name)
 929 {
 930         struct wps_context *wps = hapd->wps;
 931         struct oob_device_data *oob_dev;
 932
 933         oob_dev = wps_get_oob_device(device_type);
 934         if (oob_dev == NULL)
 935                 return -1;
 936         oob_dev->device_path = path;
 937         oob_dev->device_name = name;
 938         wps->oob_conf.oob_method = wps_get_oob_method(method);
 939
 940         if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) {
 941                 /*
 942                  * Use pre-configured DH keys in order to be able to write the
 943                  * key hash into the OOB file.
 944                  */
 945                 wpabuf_free(wps->dh_pubkey);
 946                 wpabuf_free(wps->dh_privkey);
 947                 wps->dh_privkey = NULL;
 948                 wps->dh_pubkey = dh_init(dh_groups_get(WPS_DH_GROUP),
 949                                          &wps->dh_privkey);
 950                 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
 951                 if (wps->dh_pubkey == NULL) {
 952                         wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
 953                                    "Diffie-Hellman handshake");
 954                         return -1;
 955                 }
 956         }
 957
 958         if (wps_process_oob(wps, oob_dev, 1) < 0)
 959                 goto error;
 960
 961         if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
 962              wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
 963             hostapd_wps_add_pin(hapd, NULL, "any",
 964                                 wpabuf_head(wps->oob_conf.dev_password), 0) <
 965             0)
 966                 goto error;
 967
 968         return 0;
 969
 970 error:
 971         wpabuf_free(wps->dh_pubkey);
 972         wps->dh_pubkey = NULL;
 973         wpabuf_free(wps->dh_privkey);
 974         wps->dh_privkey = NULL;
 975         return -1;
 976 }
 977 #endif /* CONFIG_WPS_OOB */
 978
 979
 980 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr,
 981                                     const u8 *ie, size_t ie_len)
 982 {
 983         struct hostapd_data *hapd = ctx;
 984         struct wpabuf *wps_ie;
 985         struct ieee802_11_elems elems;
 986
 987         if (hapd->wps == NULL)
 988                 return 0;
 989
 990         if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) {
 991                 wpa_printf(MSG_DEBUG, "WPS: Could not parse ProbeReq from "
 992                            MACSTR, MAC2STR(addr));
 993                 return 0;
 994         }
 995
 996         if (elems.ssid && elems.ssid_len > 0 &&
 997             (elems.ssid_len != hapd->conf->ssid.ssid_len ||
 998              os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) !=
 999              0))
1000                 return 0; /* Not for us */
1001
1002         wps_ie = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
1003         if (wps_ie == NULL)
1004                 return 0;
1005         if (wps_validate_probe_req(wps_ie, addr) < 0) {
1006                 wpabuf_free(wps_ie);
1007                 return 0;
1008         }
1009
1010         if (wpabuf_len(wps_ie) > 0) {
1011                 int p2p_wildcard = 0;
1012 #ifdef CONFIG_P2P
1013                 if (elems.ssid && elems.ssid_len == P2P_WILDCARD_SSID_LEN &&
1014                     os_memcmp(elems.ssid, P2P_WILDCARD_SSID,
1015                               P2P_WILDCARD_SSID_LEN) == 0)
1016                         p2p_wildcard = 1;
1017 #endif /* CONFIG_P2P */
1018                 wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie,
1019                                            p2p_wildcard);
1020 #ifdef CONFIG_WPS_UPNP
1021                 /* FIX: what exactly should be included in the WLANEvent?
1022                  * WPS attributes? Full ProbeReq frame? */
1023                 if (!p2p_wildcard)
1024                         upnp_wps_device_send_wlan_event(
1025                                 hapd->wps_upnp, addr,
1026                                 UPNP_WPS_WLANEVENT_TYPE_PROBE, wps_ie);
1027 #endif /* CONFIG_WPS_UPNP */
1028         }
1029
1030         wpabuf_free(wps_ie);
1031
1032         return 0;
1033 }
1034
1035
1036 #ifdef CONFIG_WPS_UPNP
1037
1038 static int hostapd_rx_req_put_wlan_response(
1039         void *priv, enum upnp_wps_wlanevent_type ev_type,
1040         const u8 *mac_addr, const struct wpabuf *msg,
1041         enum wps_msg_type msg_type)
1042 {
1043         struct hostapd_data *hapd = priv;
1044         struct sta_info *sta;
1045         struct upnp_pending_message *p;
1046
1047         wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr="
1048                    MACSTR, ev_type, MAC2STR(mac_addr));
1049         wpa_hexdump(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage",
1050                     wpabuf_head(msg), wpabuf_len(msg));
1051         if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) {
1052                 wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected "
1053                            "PutWLANResponse WLANEventType %d", ev_type);
1054                 return -1;
1055         }
1056
1057         /*
1058          * EAP response to ongoing to WPS Registration. Send it to EAP-WSC
1059          * server implementation for delivery to the peer.
1060          */
1061
1062         sta = ap_get_sta(hapd, mac_addr);
1063 #ifndef CONFIG_WPS_STRICT
1064         if (!sta) {
1065                 /*
1066                  * Workaround - Intel wsccmd uses bogus NewWLANEventMAC:
1067                  * Pick STA that is in an ongoing WPS registration without
1068                  * checking the MAC address.
1069                  */
1070                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based "
1071                            "on NewWLANEventMAC; try wildcard match");
1072                 for (sta = hapd->sta_list; sta; sta = sta->next) {
1073                         if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS))
1074                                 break;
1075                 }
1076         }
1077 #endif /* CONFIG_WPS_STRICT */
1078
1079         if (!sta) {
1080                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found");
1081                 return 0;
1082         }
1083
1084         p = os_zalloc(sizeof(*p));
1085         if (p == NULL)
1086                 return -1;
1087         os_memcpy(p->addr, sta->addr, ETH_ALEN);
1088         p->msg = wpabuf_dup(msg);
1089         p->type = msg_type;
1090         p->next = hapd->wps->upnp_msgs;
1091         hapd->wps->upnp_msgs = p;
1092
1093         return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap);
1094 }
1095
1096
1097 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
1098                                  struct wps_context *wps)
1099 {
1100         struct upnp_wps_device_ctx *ctx;
1101
1102         if (!hapd->conf->upnp_iface)
1103                 return 0;
1104         ctx = os_zalloc(sizeof(*ctx));
1105         if (ctx == NULL)
1106                 return -1;
1107
1108         ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response;
1109         if (hapd->conf->ap_pin)
1110                 ctx->ap_pin = os_strdup(hapd->conf->ap_pin);
1111
1112         hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd);
1113         if (hapd->wps_upnp == NULL) {
1114                 os_free(ctx);
1115                 return -1;
1116         }
1117         wps->wps_upnp = hapd->wps_upnp;
1118
1119         if (upnp_wps_device_start(hapd->wps_upnp, hapd->conf->upnp_iface)) {
1120                 upnp_wps_device_deinit(hapd->wps_upnp);
1121                 hapd->wps_upnp = NULL;
1122                 return -1;
1123         }
1124
1125         return 0;
1126 }
1127
1128
1129 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd)
1130 {
1131         upnp_wps_device_deinit(hapd->wps_upnp);
1132 }
1133
1134 #endif /* CONFIG_WPS_UPNP */
1135
1136
1137 int hostapd_wps_get_mib_sta(struct hostapd_data *hapd, const u8 *addr,
1138                             char *buf, size_t buflen)
1139 {
1140         if (hapd->wps == NULL)
1141                 return 0;
1142         return wps_registrar_get_info(hapd->wps->registrar, addr, buf, buflen);
1143 }
1144
1145
1146 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
1147 {
1148         struct hostapd_data *hapd = eloop_data;
1149         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
1150         hostapd_wps_ap_pin_disable(hapd);
1151 }
1152
1153
1154 static void hostapd_wps_ap_pin_enable(struct hostapd_data *hapd, int timeout)
1155 {
1156         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
1157         hapd->ap_pin_failures = 0;
1158         hapd->conf->ap_setup_locked = 0;
1159         if (hapd->wps->ap_setup_locked) {
1160                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
1161                 hapd->wps->ap_setup_locked = 0;
1162                 wps_registrar_update_ie(hapd->wps->registrar);
1163         }
1164         eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1165         if (timeout > 0)
1166                 eloop_register_timeout(timeout, 0,
1167                                        hostapd_wps_ap_pin_timeout, hapd, NULL);
1168 }
1169
1170
1171 static int wps_ap_pin_disable(struct hostapd_data *hapd, void *ctx)
1172 {
1173         os_free(hapd->conf->ap_pin);
1174         hapd->conf->ap_pin = NULL;
1175 #ifdef CONFIG_WPS_UPNP
1176         upnp_wps_set_ap_pin(hapd->wps_upnp, NULL);
1177 #endif /* CONFIG_WPS_UPNP */
1178         eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1179         return 0;
1180 }
1181
1182
1183 void hostapd_wps_ap_pin_disable(struct hostapd_data *hapd)
1184 {
1185         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
1186         hostapd_wps_for_each(hapd, wps_ap_pin_disable, NULL);
1187 }
1188
1189
1190 struct wps_ap_pin_data {
1191         char pin_txt[9];
1192         int timeout;
1193 };
1194
1195
1196 static int wps_ap_pin_set(struct hostapd_data *hapd, void *ctx)
1197 {
1198         struct wps_ap_pin_data *data = ctx;
1199         os_free(hapd->conf->ap_pin);
1200         hapd->conf->ap_pin = os_strdup(data->pin_txt);
1201 #ifdef CONFIG_WPS_UPNP
1202         upnp_wps_set_ap_pin(hapd->wps_upnp, data->pin_txt);
1203 #endif /* CONFIG_WPS_UPNP */
1204         hostapd_wps_ap_pin_enable(hapd, data->timeout);
1205         return 0;
1206 }
1207
1208
1209 const char * hostapd_wps_ap_pin_random(struct hostapd_data *hapd, int timeout)
1210 {
1211         unsigned int pin;
1212         struct wps_ap_pin_data data;
1213
1214         pin = wps_generate_pin();
1215         os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%u", pin);
1216         data.timeout = timeout;
1217         hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1218         return hapd->conf->ap_pin;
1219 }
1220
1221
1222 const char * hostapd_wps_ap_pin_get(struct hostapd_data *hapd)
1223 {
1224         return hapd->conf->ap_pin;
1225 }
1226
1227
1228 int hostapd_wps_ap_pin_set(struct hostapd_data *hapd, const char *pin,
1229                            int timeout)
1230 {
1231         struct wps_ap_pin_data data;
1232         int ret;
1233
1234         ret = os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%s", pin);
1235         if (ret < 0 || ret >= (int) sizeof(data.pin_txt))
1236                 return -1;
1237         data.timeout = timeout;
1238         return hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1239 }