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