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_fail(struct hostapd_data *hapd,
 536                                    struct wps_event_fail *fail)
 537 {
 538         wpa_msg(hapd->msg_ctx, MSG_INFO,
 539                 WPS_EVENT_FAIL "msg=%d config_error=%d",
 540                 fail->msg, fail->config_error);
 541 }
 542
 543
 544 static void hostapd_wps_event_cb(void *ctx, enum wps_event event,
 545                                  union wps_event_data *data)
 546 {
 547         struct hostapd_data *hapd = ctx;
 548
 549         switch (event) {
 550         case WPS_EV_M2D:
 551                 break;
 552         case WPS_EV_FAIL:
 553                 hostapd_wps_event_fail(hapd, &data->fail);
 554                 break;
 555         case WPS_EV_SUCCESS:
 556                 break;
 557         case WPS_EV_PWD_AUTH_FAIL:
 558                 hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail);
 559                 break;
 560         case WPS_EV_PBC_OVERLAP:
 561                 break;
 562         case WPS_EV_PBC_TIMEOUT:
 563                 break;
 564         case WPS_EV_ER_AP_ADD:
 565                 break;
 566         case WPS_EV_ER_AP_REMOVE:
 567                 break;
 568         case WPS_EV_ER_ENROLLEE_ADD:
 569                 break;
 570         case WPS_EV_ER_ENROLLEE_REMOVE:
 571                 break;
 572         case WPS_EV_ER_AP_SETTINGS:
 573                 break;
 574         }
 575 }
 576
 577
 578 static void hostapd_wps_clear_ies(struct hostapd_data *hapd)
 579 {
 580         wpabuf_free(hapd->wps_beacon_ie);
 581         hapd->wps_beacon_ie = NULL;
 582
 583         wpabuf_free(hapd->wps_probe_resp_ie);
 584         hapd->wps_probe_resp_ie = NULL;
 585
 586         hapd->drv.set_ap_wps_ie(hapd);
 587 }
 588
 589
 590 static int get_uuid_cb(struct hostapd_iface *iface, void *ctx)
 591 {
 592         const u8 **uuid = ctx;
 593         size_t j;
 594
 595         if (iface == NULL)
 596                 return 0;
 597         for (j = 0; j < iface->num_bss; j++) {
 598                 struct hostapd_data *hapd = iface->bss[j];
 599                 if (hapd->wps && !is_nil_uuid(hapd->wps->uuid)) {
 600                         *uuid = hapd->wps->uuid;
 601                         return 1;
 602                 }
 603         }
 604
 605         return 0;
 606 }
 607
 608
 609 static const u8 * get_own_uuid(struct hostapd_iface *iface)
 610 {
 611         const u8 *uuid;
 612         if (iface->for_each_interface == NULL)
 613                 return NULL;
 614         uuid = NULL;
 615         iface->for_each_interface(iface->interfaces, get_uuid_cb, &uuid);
 616         return uuid;
 617 }
 618
 619
 620 static int count_interface_cb(struct hostapd_iface *iface, void *ctx)
 621 {
 622         int *count= ctx;
 623         (*count)++;
 624         return 0;
 625 }
 626
 627
 628 static int interface_count(struct hostapd_iface *iface)
 629 {
 630         int count = 0;
 631         if (iface->for_each_interface == NULL)
 632                 return 0;
 633         iface->for_each_interface(iface->interfaces, count_interface_cb,
 634                                   &count);
 635         return count;
 636 }
 637
 638
 639 int hostapd_init_wps(struct hostapd_data *hapd,
 640                      struct hostapd_bss_config *conf)
 641 {
 642         struct wps_context *wps;
 643         struct wps_registrar_config cfg;
 644
 645         if (conf->wps_state == 0) {
 646                 hostapd_wps_clear_ies(hapd);
 647                 return 0;
 648         }
 649
 650         wps = os_zalloc(sizeof(*wps));
 651         if (wps == NULL)
 652                 return -1;
 653
 654         wps->cred_cb = hostapd_wps_cred_cb;
 655         wps->event_cb = hostapd_wps_event_cb;
 656         wps->cb_ctx = hapd;
 657
 658         os_memset(&cfg, 0, sizeof(cfg));
 659         wps->wps_state = hapd->conf->wps_state;
 660         wps->ap_setup_locked = hapd->conf->ap_setup_locked;
 661         if (is_nil_uuid(hapd->conf->uuid)) {
 662                 const u8 *uuid;
 663                 uuid = get_own_uuid(hapd->iface);
 664                 if (uuid) {
 665                         os_memcpy(wps->uuid, uuid, UUID_LEN);
 666                         wpa_hexdump(MSG_DEBUG, "WPS: Clone UUID from another "
 667                                     "interface", wps->uuid, UUID_LEN);
 668                 } else {
 669                         uuid_gen_mac_addr(hapd->own_addr, wps->uuid);
 670                         wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
 671                                     "address", wps->uuid, UUID_LEN);
 672                 }
 673         } else {
 674                 os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN);
 675                 wpa_hexdump(MSG_DEBUG, "WPS: Use configured UUID",
 676                             wps->uuid, UUID_LEN);
 677         }
 678         wps->ssid_len = hapd->conf->ssid.ssid_len;
 679         os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len);
 680         wps->ap = 1;
 681         os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN);
 682         wps->dev.device_name = hapd->conf->device_name ?
 683                 os_strdup(hapd->conf->device_name) : NULL;
 684         wps->dev.manufacturer = hapd->conf->manufacturer ?
 685                 os_strdup(hapd->conf->manufacturer) : NULL;
 686         wps->dev.model_name = hapd->conf->model_name ?
 687                 os_strdup(hapd->conf->model_name) : NULL;
 688         wps->dev.model_number = hapd->conf->model_number ?
 689                 os_strdup(hapd->conf->model_number) : NULL;
 690         wps->dev.serial_number = hapd->conf->serial_number ?
 691                 os_strdup(hapd->conf->serial_number) : NULL;
 692         wps->config_methods =
 693                 wps_config_methods_str2bin(hapd->conf->config_methods);
 694 #ifdef CONFIG_WPS2
 695         if ((wps->config_methods &
 696              (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
 697               WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
 698                 wpa_printf(MSG_INFO, "WPS: Converting display to "
 699                            "virtual_display for WPS 2.0 compliance");
 700                 wps->config_methods |= WPS_CONFIG_VIRT_DISPLAY;
 701         }
 702         if ((wps->config_methods &
 703              (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
 704               WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
 705                 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
 706                            "virtual_push_button for WPS 2.0 compliance");
 707                 wps->config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
 708         }
 709 #endif /* CONFIG_WPS2 */
 710         if (hapd->conf->device_type &&
 711             wps_dev_type_str2bin(hapd->conf->device_type,
 712                                  wps->dev.pri_dev_type) < 0) {
 713                 wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
 714                 os_free(wps);
 715                 return -1;
 716         }
 717         wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version);
 718         wps->dev.rf_bands = hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
 719                 WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
 720
 721         if (conf->wpa & WPA_PROTO_RSN) {
 722                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
 723                         wps->auth_types |= WPS_AUTH_WPA2PSK;
 724                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 725                         wps->auth_types |= WPS_AUTH_WPA2;
 726
 727                 if (conf->rsn_pairwise & WPA_CIPHER_CCMP)
 728                         wps->encr_types |= WPS_ENCR_AES;
 729                 if (conf->rsn_pairwise & WPA_CIPHER_TKIP)
 730                         wps->encr_types |= WPS_ENCR_TKIP;
 731         }
 732
 733         if (conf->wpa & WPA_PROTO_WPA) {
 734                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
 735                         wps->auth_types |= WPS_AUTH_WPAPSK;
 736                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 737                         wps->auth_types |= WPS_AUTH_WPA;
 738
 739                 if (conf->wpa_pairwise & WPA_CIPHER_CCMP)
 740                         wps->encr_types |= WPS_ENCR_AES;
 741                 if (conf->wpa_pairwise & WPA_CIPHER_TKIP)
 742                         wps->encr_types |= WPS_ENCR_TKIP;
 743         }
 744
 745         if (conf->ssid.security_policy == SECURITY_PLAINTEXT) {
 746                 wps->encr_types |= WPS_ENCR_NONE;
 747                 wps->auth_types |= WPS_AUTH_OPEN;
 748         } else if (conf->ssid.security_policy == SECURITY_STATIC_WEP) {
 749                 wps->encr_types |= WPS_ENCR_WEP;
 750                 if (conf->auth_algs & WPA_AUTH_ALG_OPEN)
 751                         wps->auth_types |= WPS_AUTH_OPEN;
 752                 if (conf->auth_algs & WPA_AUTH_ALG_SHARED)
 753                         wps->auth_types |= WPS_AUTH_SHARED;
 754         } else if (conf->ssid.security_policy == SECURITY_IEEE_802_1X) {
 755                 wps->auth_types |= WPS_AUTH_OPEN;
 756                 if (conf->default_wep_key_len)
 757                         wps->encr_types |= WPS_ENCR_WEP;
 758                 else
 759                         wps->encr_types |= WPS_ENCR_NONE;
 760         }
 761
 762         if (conf->ssid.wpa_psk_file) {
 763                 /* Use per-device PSKs */
 764         } else if (conf->ssid.wpa_passphrase) {
 765                 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase);
 766                 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase);
 767         } else if (conf->ssid.wpa_psk) {
 768                 wps->network_key = os_malloc(2 * PMK_LEN + 1);
 769                 if (wps->network_key == NULL) {
 770                         os_free(wps);
 771                         return -1;
 772                 }
 773                 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1,
 774                                  conf->ssid.wpa_psk->psk, PMK_LEN);
 775                 wps->network_key_len = 2 * PMK_LEN;
 776         } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) {
 777                 wps->network_key = os_malloc(conf->ssid.wep.len[0]);
 778                 if (wps->network_key == NULL) {
 779                         os_free(wps);
 780                         return -1;
 781                 }
 782                 os_memcpy(wps->network_key, conf->ssid.wep.key[0],
 783                           conf->ssid.wep.len[0]);
 784                 wps->network_key_len = conf->ssid.wep.len[0];
 785         }
 786
 787         if (conf->ssid.wpa_psk) {
 788                 os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN);
 789                 wps->psk_set = 1;
 790         }
 791
 792         if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) {
 793                 /* Override parameters to enable security by default */
 794                 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
 795                 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
 796         }
 797
 798         wps->ap_settings = conf->ap_settings;
 799         wps->ap_settings_len = conf->ap_settings_len;
 800
 801         cfg.new_psk_cb = hostapd_wps_new_psk_cb;
 802         cfg.set_ie_cb = hostapd_wps_set_ie_cb;
 803         cfg.pin_needed_cb = hostapd_wps_pin_needed_cb;
 804         cfg.reg_success_cb = hostapd_wps_reg_success_cb;
 805         cfg.enrollee_seen_cb = hostapd_wps_enrollee_seen_cb;
 806         cfg.cb_ctx = hapd;
 807         cfg.skip_cred_build = conf->skip_cred_build;
 808         cfg.extra_cred = conf->extra_cred;
 809         cfg.extra_cred_len = conf->extra_cred_len;
 810         cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) &&
 811                 conf->skip_cred_build;
 812         if (conf->ssid.security_policy == SECURITY_STATIC_WEP)
 813                 cfg.static_wep_only = 1;
 814         cfg.dualband = interface_count(hapd->iface) > 1;
 815         if (cfg.dualband)
 816                 wpa_printf(MSG_DEBUG, "WPS: Dualband AP");
 817
 818         wps->registrar = wps_registrar_init(wps, &cfg);
 819         if (wps->registrar == NULL) {
 820                 wpa_printf(MSG_ERROR, "Failed to initialize WPS Registrar");
 821                 os_free(wps->network_key);
 822                 os_free(wps);
 823                 return -1;
 824         }
 825
 826 #ifdef CONFIG_WPS_UPNP
 827         wps->friendly_name = hapd->conf->friendly_name;
 828         wps->manufacturer_url = hapd->conf->manufacturer_url;
 829         wps->model_description = hapd->conf->model_description;
 830         wps->model_url = hapd->conf->model_url;
 831         wps->upc = hapd->conf->upc;
 832
 833         if (hostapd_wps_upnp_init(hapd, wps) < 0) {
 834                 wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP");
 835                 wps_registrar_deinit(wps->registrar);
 836                 os_free(wps->network_key);
 837                 os_free(wps);
 838                 return -1;
 839         }
 840 #endif /* CONFIG_WPS_UPNP */
 841
 842         hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd);
 843
 844         hapd->wps = wps;
 845
 846         return 0;
 847 }
 848
 849
 850 void hostapd_deinit_wps(struct hostapd_data *hapd)
 851 {
 852         eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
 853         eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
 854         if (hapd->wps == NULL)
 855                 return;
 856 #ifdef CONFIG_WPS_UPNP
 857         hostapd_wps_upnp_deinit(hapd);
 858 #endif /* CONFIG_WPS_UPNP */
 859         wps_registrar_deinit(hapd->wps->registrar);
 860         os_free(hapd->wps->network_key);
 861         wps_device_data_free(&hapd->wps->dev);
 862         wpabuf_free(hapd->wps->dh_pubkey);
 863         wpabuf_free(hapd->wps->dh_privkey);
 864         wpabuf_free(hapd->wps->oob_conf.pubkey_hash);
 865         wpabuf_free(hapd->wps->oob_conf.dev_password);
 866         wps_free_pending_msgs(hapd->wps->upnp_msgs);
 867         os_free(hapd->wps);
 868         hapd->wps = NULL;
 869         hostapd_wps_clear_ies(hapd);
 870 }
 871
 872
 873 void hostapd_update_wps(struct hostapd_data *hapd)
 874 {
 875         if (hapd->wps == NULL)
 876                 return;
 877
 878 #ifdef CONFIG_WPS_UPNP
 879         hapd->wps->friendly_name = hapd->conf->friendly_name;
 880         hapd->wps->manufacturer_url = hapd->conf->manufacturer_url;
 881         hapd->wps->model_description = hapd->conf->model_description;
 882         hapd->wps->model_url = hapd->conf->model_url;
 883         hapd->wps->upc = hapd->conf->upc;
 884 #endif /* CONFIG_WPS_UPNP */
 885
 886         if (hapd->conf->wps_state)
 887                 wps_registrar_update_ie(hapd->wps->registrar);
 888         else
 889                 hostapd_deinit_wps(hapd);
 890 }
 891
 892
 893 struct wps_add_pin_data {
 894         const u8 *addr;
 895         const u8 *uuid;
 896         const u8 *pin;
 897         size_t pin_len;
 898         int timeout;
 899         int added;
 900 };
 901
 902
 903 static int wps_add_pin(struct hostapd_data *hapd, void *ctx)
 904 {
 905         struct wps_add_pin_data *data = ctx;
 906         int ret;
 907
 908         if (hapd->wps == NULL)
 909                 return 0;
 910         ret = wps_registrar_add_pin(hapd->wps->registrar, data->addr,
 911                                     data->uuid, data->pin, data->pin_len,
 912                                     data->timeout);
 913         if (ret == 0)
 914                 data->added++;
 915         return ret;
 916 }
 917
 918
 919 int hostapd_wps_add_pin(struct hostapd_data *hapd, const u8 *addr,
 920                         const char *uuid, const char *pin, int timeout)
 921 {
 922         u8 u[UUID_LEN];
 923         struct wps_add_pin_data data;
 924
 925         data.addr = addr;
 926         data.uuid = u;
 927         data.pin = (const u8 *) pin;
 928         data.pin_len = os_strlen(pin);
 929         data.timeout = timeout;
 930         data.added = 0;
 931
 932         if (os_strcmp(uuid, "any") == 0)
 933                 data.uuid = NULL;
 934         else {
 935                 if (uuid_str2bin(uuid, u))
 936                         return -1;
 937                 data.uuid = u;
 938         }
 939         if (hostapd_wps_for_each(hapd, wps_add_pin, &data) < 0)
 940                 return -1;
 941         return data.added ? 0 : -1;
 942 }
 943
 944
 945 static int wps_button_pushed(struct hostapd_data *hapd, void *ctx)
 946 {
 947         if (hapd->wps == NULL)
 948                 return 0;
 949         return wps_registrar_button_pushed(hapd->wps->registrar);
 950 }
 951
 952
 953 int hostapd_wps_button_pushed(struct hostapd_data *hapd)
 954 {
 955         return hostapd_wps_for_each(hapd, wps_button_pushed, NULL);
 956 }
 957
 958
 959 #ifdef CONFIG_WPS_OOB
 960 int hostapd_wps_start_oob(struct hostapd_data *hapd, char *device_type,
 961                           char *path, char *method, char *name)
 962 {
 963         struct wps_context *wps = hapd->wps;
 964         struct oob_device_data *oob_dev;
 965
 966         oob_dev = wps_get_oob_device(device_type);
 967         if (oob_dev == NULL)
 968                 return -1;
 969         oob_dev->device_path = path;
 970         oob_dev->device_name = name;
 971         wps->oob_conf.oob_method = wps_get_oob_method(method);
 972
 973         if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) {
 974                 /*
 975                  * Use pre-configured DH keys in order to be able to write the
 976                  * key hash into the OOB file.
 977                  */
 978                 wpabuf_free(wps->dh_pubkey);
 979                 wpabuf_free(wps->dh_privkey);
 980                 wps->dh_privkey = NULL;
 981                 wps->dh_pubkey = dh_init(dh_groups_get(WPS_DH_GROUP),
 982                                          &wps->dh_privkey);
 983                 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
 984                 if (wps->dh_pubkey == NULL) {
 985                         wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
 986                                    "Diffie-Hellman handshake");
 987                         return -1;
 988                 }
 989         }
 990
 991         if (wps_process_oob(wps, oob_dev, 1) < 0)
 992                 goto error;
 993
 994         if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
 995              wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
 996             hostapd_wps_add_pin(hapd, NULL, "any",
 997                                 wpabuf_head(wps->oob_conf.dev_password), 0) <
 998             0)
 999                 goto error;
1000
1001         return 0;
1002
1003 error:
1004         wpabuf_free(wps->dh_pubkey);
1005         wps->dh_pubkey = NULL;
1006         wpabuf_free(wps->dh_privkey);
1007         wps->dh_privkey = NULL;
1008         return -1;
1009 }
1010 #endif /* CONFIG_WPS_OOB */
1011
1012
1013 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr,
1014                                     const u8 *ie, size_t ie_len)
1015 {
1016         struct hostapd_data *hapd = ctx;
1017         struct wpabuf *wps_ie;
1018         struct ieee802_11_elems elems;
1019
1020         if (hapd->wps == NULL)
1021                 return 0;
1022
1023         if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) {
1024                 wpa_printf(MSG_DEBUG, "WPS: Could not parse ProbeReq from "
1025                            MACSTR, MAC2STR(addr));
1026                 return 0;
1027         }
1028
1029         if (elems.ssid && elems.ssid_len > 0 &&
1030             (elems.ssid_len != hapd->conf->ssid.ssid_len ||
1031              os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) !=
1032              0))
1033                 return 0; /* Not for us */
1034
1035         wps_ie = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
1036         if (wps_ie == NULL)
1037                 return 0;
1038         if (wps_validate_probe_req(wps_ie, addr) < 0) {
1039                 wpabuf_free(wps_ie);
1040                 return 0;
1041         }
1042
1043         if (wpabuf_len(wps_ie) > 0) {
1044                 int p2p_wildcard = 0;
1045 #ifdef CONFIG_P2P
1046                 if (elems.ssid && elems.ssid_len == P2P_WILDCARD_SSID_LEN &&
1047                     os_memcmp(elems.ssid, P2P_WILDCARD_SSID,
1048                               P2P_WILDCARD_SSID_LEN) == 0)
1049                         p2p_wildcard = 1;
1050 #endif /* CONFIG_P2P */
1051                 wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie,
1052                                            p2p_wildcard);
1053 #ifdef CONFIG_WPS_UPNP
1054                 /* FIX: what exactly should be included in the WLANEvent?
1055                  * WPS attributes? Full ProbeReq frame? */
1056                 if (!p2p_wildcard)
1057                         upnp_wps_device_send_wlan_event(
1058                                 hapd->wps_upnp, addr,
1059                                 UPNP_WPS_WLANEVENT_TYPE_PROBE, wps_ie);
1060 #endif /* CONFIG_WPS_UPNP */
1061         }
1062
1063         wpabuf_free(wps_ie);
1064
1065         return 0;
1066 }
1067
1068
1069 #ifdef CONFIG_WPS_UPNP
1070
1071 static int hostapd_rx_req_put_wlan_response(
1072         void *priv, enum upnp_wps_wlanevent_type ev_type,
1073         const u8 *mac_addr, const struct wpabuf *msg,
1074         enum wps_msg_type msg_type)
1075 {
1076         struct hostapd_data *hapd = priv;
1077         struct sta_info *sta;
1078         struct upnp_pending_message *p;
1079
1080         wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr="
1081                    MACSTR, ev_type, MAC2STR(mac_addr));
1082         wpa_hexdump(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage",
1083                     wpabuf_head(msg), wpabuf_len(msg));
1084         if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) {
1085                 wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected "
1086                            "PutWLANResponse WLANEventType %d", ev_type);
1087                 return -1;
1088         }
1089
1090         /*
1091          * EAP response to ongoing to WPS Registration. Send it to EAP-WSC
1092          * server implementation for delivery to the peer.
1093          */
1094
1095         sta = ap_get_sta(hapd, mac_addr);
1096 #ifndef CONFIG_WPS_STRICT
1097         if (!sta) {
1098                 /*
1099                  * Workaround - Intel wsccmd uses bogus NewWLANEventMAC:
1100                  * Pick STA that is in an ongoing WPS registration without
1101                  * checking the MAC address.
1102                  */
1103                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based "
1104                            "on NewWLANEventMAC; try wildcard match");
1105                 for (sta = hapd->sta_list; sta; sta = sta->next) {
1106                         if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS))
1107                                 break;
1108                 }
1109         }
1110 #endif /* CONFIG_WPS_STRICT */
1111
1112         if (!sta) {
1113                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found");
1114                 return 0;
1115         }
1116
1117         p = os_zalloc(sizeof(*p));
1118         if (p == NULL)
1119                 return -1;
1120         os_memcpy(p->addr, sta->addr, ETH_ALEN);
1121         p->msg = wpabuf_dup(msg);
1122         p->type = msg_type;
1123         p->next = hapd->wps->upnp_msgs;
1124         hapd->wps->upnp_msgs = p;
1125
1126         return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap);
1127 }
1128
1129
1130 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
1131                                  struct wps_context *wps)
1132 {
1133         struct upnp_wps_device_ctx *ctx;
1134
1135         if (!hapd->conf->upnp_iface)
1136                 return 0;
1137         ctx = os_zalloc(sizeof(*ctx));
1138         if (ctx == NULL)
1139                 return -1;
1140
1141         ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response;
1142         if (hapd->conf->ap_pin)
1143                 ctx->ap_pin = os_strdup(hapd->conf->ap_pin);
1144
1145         hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd);
1146         if (hapd->wps_upnp == NULL) {
1147                 os_free(ctx);
1148                 return -1;
1149         }
1150         wps->wps_upnp = hapd->wps_upnp;
1151
1152         if (upnp_wps_device_start(hapd->wps_upnp, hapd->conf->upnp_iface)) {
1153                 upnp_wps_device_deinit(hapd->wps_upnp);
1154                 hapd->wps_upnp = NULL;
1155                 return -1;
1156         }
1157
1158         return 0;
1159 }
1160
1161
1162 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd)
1163 {
1164         upnp_wps_device_deinit(hapd->wps_upnp);
1165 }
1166
1167 #endif /* CONFIG_WPS_UPNP */
1168
1169
1170 int hostapd_wps_get_mib_sta(struct hostapd_data *hapd, const u8 *addr,
1171                             char *buf, size_t buflen)
1172 {
1173         if (hapd->wps == NULL)
1174                 return 0;
1175         return wps_registrar_get_info(hapd->wps->registrar, addr, buf, buflen);
1176 }
1177
1178
1179 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
1180 {
1181         struct hostapd_data *hapd = eloop_data;
1182         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
1183         hostapd_wps_ap_pin_disable(hapd);
1184 }
1185
1186
1187 static void hostapd_wps_ap_pin_enable(struct hostapd_data *hapd, int timeout)
1188 {
1189         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
1190         hapd->ap_pin_failures = 0;
1191         hapd->conf->ap_setup_locked = 0;
1192         if (hapd->wps->ap_setup_locked) {
1193                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
1194                 hapd->wps->ap_setup_locked = 0;
1195                 wps_registrar_update_ie(hapd->wps->registrar);
1196         }
1197         eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1198         if (timeout > 0)
1199                 eloop_register_timeout(timeout, 0,
1200                                        hostapd_wps_ap_pin_timeout, hapd, NULL);
1201 }
1202
1203
1204 static int wps_ap_pin_disable(struct hostapd_data *hapd, void *ctx)
1205 {
1206         os_free(hapd->conf->ap_pin);
1207         hapd->conf->ap_pin = NULL;
1208 #ifdef CONFIG_WPS_UPNP
1209         upnp_wps_set_ap_pin(hapd->wps_upnp, NULL);
1210 #endif /* CONFIG_WPS_UPNP */
1211         eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1212         return 0;
1213 }
1214
1215
1216 void hostapd_wps_ap_pin_disable(struct hostapd_data *hapd)
1217 {
1218         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
1219         hostapd_wps_for_each(hapd, wps_ap_pin_disable, NULL);
1220 }
1221
1222
1223 struct wps_ap_pin_data {
1224         char pin_txt[9];
1225         int timeout;
1226 };
1227
1228
1229 static int wps_ap_pin_set(struct hostapd_data *hapd, void *ctx)
1230 {
1231         struct wps_ap_pin_data *data = ctx;
1232         os_free(hapd->conf->ap_pin);
1233         hapd->conf->ap_pin = os_strdup(data->pin_txt);
1234 #ifdef CONFIG_WPS_UPNP
1235         upnp_wps_set_ap_pin(hapd->wps_upnp, data->pin_txt);
1236 #endif /* CONFIG_WPS_UPNP */
1237         hostapd_wps_ap_pin_enable(hapd, data->timeout);
1238         return 0;
1239 }
1240
1241
1242 const char * hostapd_wps_ap_pin_random(struct hostapd_data *hapd, int timeout)
1243 {
1244         unsigned int pin;
1245         struct wps_ap_pin_data data;
1246
1247         pin = wps_generate_pin();
1248         os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%u", pin);
1249         data.timeout = timeout;
1250         hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1251         return hapd->conf->ap_pin;
1252 }
1253
1254
1255 const char * hostapd_wps_ap_pin_get(struct hostapd_data *hapd)
1256 {
1257         return hapd->conf->ap_pin;
1258 }
1259
1260
1261 int hostapd_wps_ap_pin_set(struct hostapd_data *hapd, const char *pin,
1262                            int timeout)
1263 {
1264         struct wps_ap_pin_data data;
1265         int ret;
1266
1267         ret = os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%s", pin);
1268         if (ret < 0 || ret >= (int) sizeof(data.pin_txt))
1269                 return -1;
1270         data.timeout = timeout;
1271         return hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1272 }