src/ap/wps_hostapd.c

   1 /*
   2  * hostapd / WPS integration
   3  * Copyright (c) 2008-2010, Jouni Malinen <j@w1.fi>
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "utils/includes.h"
  10
  11 #include "utils/common.h"
  12 #include "utils/eloop.h"
  13 #include "utils/uuid.h"
  14 #include "crypto/dh_groups.h"
  15 #include "common/wpa_ctrl.h"
  16 #include "common/ieee802_11_defs.h"
  17 #include "common/ieee802_11_common.h"
  18 #include "eapol_auth/eapol_auth_sm.h"
  19 #include "eapol_auth/eapol_auth_sm_i.h"
  20 #include "wps/wps.h"
  21 #include "wps/wps_defs.h"
  22 #include "wps/wps_dev_attr.h"
  23 #include "hostapd.h"
  24 #include "ap_config.h"
  25 #include "ap_drv_ops.h"
  26 #include "beacon.h"
  27 #include "sta_info.h"
  28 #include "wps_hostapd.h"
  29
  30
  31 #ifdef CONFIG_WPS_UPNP
  32 #include "wps/wps_upnp.h"
  33 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
  34                                  struct wps_context *wps);
  35 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd);
  36 #endif /* CONFIG_WPS_UPNP */
  37
  38 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da,
  39                                     const u8 *bssid,
  40                                     const u8 *ie, size_t ie_len);
  41 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
  42
  43
  44 struct wps_for_each_data {
  45         int (*func)(struct hostapd_data *h, void *ctx);
  46         void *ctx;
  47 };
  48
  49
  50 static int wps_for_each(struct hostapd_iface *iface, void *ctx)
  51 {
  52         struct wps_for_each_data *data = ctx;
  53         size_t j;
  54
  55         if (iface == NULL)
  56                 return 0;
  57         for (j = 0; j < iface->num_bss; j++) {
  58                 struct hostapd_data *hapd = iface->bss[j];
  59                 int ret = data->func(hapd, data->ctx);
  60                 if (ret)
  61                         return ret;
  62         }
  63
  64         return 0;
  65 }
  66
  67
  68 static int hostapd_wps_for_each(struct hostapd_data *hapd,
  69                                 int (*func)(struct hostapd_data *h, void *ctx),
  70                                 void *ctx)
  71 {
  72         struct hostapd_iface *iface = hapd->iface;
  73         struct wps_for_each_data data;
  74         data.func = func;
  75         data.ctx = ctx;
  76         if (iface->for_each_interface == NULL)
  77                 return wps_for_each(iface, &data);
  78         return iface->for_each_interface(iface->interfaces, wps_for_each,
  79                                          &data);
  80 }
  81
  82
  83 static int hostapd_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
  84                                   size_t psk_len)
  85 {
  86         struct hostapd_data *hapd = ctx;
  87         struct hostapd_wpa_psk *p;
  88         struct hostapd_ssid *ssid = &hapd->conf->ssid;
  89
  90         wpa_printf(MSG_DEBUG, "Received new WPA/WPA2-PSK from WPS for STA "
  91                    MACSTR, MAC2STR(mac_addr));
  92         wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
  93
  94         if (psk_len != PMK_LEN) {
  95                 wpa_printf(MSG_DEBUG, "Unexpected PSK length %lu",
  96                            (unsigned long) psk_len);
  97                 return -1;
  98         }
  99
 100         /* Add the new PSK to runtime PSK list */
 101         p = os_zalloc(sizeof(*p));
 102         if (p == NULL)
 103                 return -1;
 104         os_memcpy(p->addr, mac_addr, ETH_ALEN);
 105         os_memcpy(p->psk, psk, PMK_LEN);
 106
 107         p->next = ssid->wpa_psk;
 108         ssid->wpa_psk = p;
 109
 110         if (ssid->wpa_psk_file) {
 111                 FILE *f;
 112                 char hex[PMK_LEN * 2 + 1];
 113                 /* Add the new PSK to PSK list file */
 114                 f = fopen(ssid->wpa_psk_file, "a");
 115                 if (f == NULL) {
 116                         wpa_printf(MSG_DEBUG, "Failed to add the PSK to "
 117                                    "'%s'", ssid->wpa_psk_file);
 118                         return -1;
 119                 }
 120
 121                 wpa_snprintf_hex(hex, sizeof(hex), psk, psk_len);
 122                 fprintf(f, MACSTR " %s\n", MAC2STR(mac_addr), hex);
 123                 fclose(f);
 124         }
 125
 126         return 0;
 127 }
 128
 129
 130 static int hostapd_wps_set_ie_cb(void *ctx, struct wpabuf *beacon_ie,
 131                                  struct wpabuf *probe_resp_ie)
 132 {
 133         struct hostapd_data *hapd = ctx;
 134         wpabuf_free(hapd->wps_beacon_ie);
 135         hapd->wps_beacon_ie = beacon_ie;
 136         wpabuf_free(hapd->wps_probe_resp_ie);
 137         hapd->wps_probe_resp_ie = probe_resp_ie;
 138         if (hapd->beacon_set_done)
 139                 ieee802_11_set_beacon(hapd);
 140         return hostapd_set_ap_wps_ie(hapd);
 141 }
 142
 143
 144 static void hostapd_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
 145                                       const struct wps_device_data *dev)
 146 {
 147         struct hostapd_data *hapd = ctx;
 148         char uuid[40], txt[400];
 149         int len;
 150         char devtype[WPS_DEV_TYPE_BUFSIZE];
 151         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 152                 return;
 153         wpa_printf(MSG_DEBUG, "WPS: PIN needed for E-UUID %s", uuid);
 154         len = os_snprintf(txt, sizeof(txt), WPS_EVENT_PIN_NEEDED
 155                           "%s " MACSTR " [%s|%s|%s|%s|%s|%s]",
 156                           uuid, MAC2STR(dev->mac_addr), dev->device_name,
 157                           dev->manufacturer, dev->model_name,
 158                           dev->model_number, dev->serial_number,
 159                           wps_dev_type_bin2str(dev->pri_dev_type, devtype,
 160                                                sizeof(devtype)));
 161         if (len > 0 && len < (int) sizeof(txt))
 162                 wpa_msg(hapd->msg_ctx, MSG_INFO, "%s", txt);
 163
 164         if (hapd->conf->wps_pin_requests) {
 165                 FILE *f;
 166                 struct os_time t;
 167                 f = fopen(hapd->conf->wps_pin_requests, "a");
 168                 if (f == NULL)
 169                         return;
 170                 os_get_time(&t);
 171                 fprintf(f, "%ld\t%s\t" MACSTR "\t%s\t%s\t%s\t%s\t%s"
 172                         "\t%s\n",
 173                         t.sec, uuid, MAC2STR(dev->mac_addr), dev->device_name,
 174                         dev->manufacturer, dev->model_name, dev->model_number,
 175                         dev->serial_number,
 176                         wps_dev_type_bin2str(dev->pri_dev_type, devtype,
 177                                              sizeof(devtype)));
 178                 fclose(f);
 179         }
 180 }
 181
 182
 183 struct wps_stop_reg_data {
 184         struct hostapd_data *current_hapd;
 185         const u8 *uuid_e;
 186         const u8 *dev_pw;
 187         size_t dev_pw_len;
 188 };
 189
 190 static int wps_stop_registrar(struct hostapd_data *hapd, void *ctx)
 191 {
 192         struct wps_stop_reg_data *data = ctx;
 193         if (hapd != data->current_hapd && hapd->wps != NULL)
 194                 wps_registrar_complete(hapd->wps->registrar, data->uuid_e,
 195                                        data->dev_pw, data->dev_pw_len);
 196         return 0;
 197 }
 198
 199
 200 static void hostapd_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 201                                        const u8 *uuid_e, const u8 *dev_pw,
 202                                        size_t dev_pw_len)
 203 {
 204         struct hostapd_data *hapd = ctx;
 205         char uuid[40];
 206         struct wps_stop_reg_data data;
 207         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 208                 return;
 209         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s",
 210                 MAC2STR(mac_addr), uuid);
 211         if (hapd->wps_reg_success_cb)
 212                 hapd->wps_reg_success_cb(hapd->wps_reg_success_cb_ctx,
 213                                          mac_addr, uuid_e);
 214         data.current_hapd = hapd;
 215         data.uuid_e = uuid_e;
 216         data.dev_pw = dev_pw;
 217         data.dev_pw_len = dev_pw_len;
 218         hostapd_wps_for_each(hapd, wps_stop_registrar, &data);
 219 }
 220
 221
 222 static void hostapd_wps_enrollee_seen_cb(void *ctx, const u8 *addr,
 223                                          const u8 *uuid_e,
 224                                          const u8 *pri_dev_type,
 225                                          u16 config_methods,
 226                                          u16 dev_password_id, u8 request_type,
 227                                          const char *dev_name)
 228 {
 229         struct hostapd_data *hapd = ctx;
 230         char uuid[40];
 231         char devtype[WPS_DEV_TYPE_BUFSIZE];
 232         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 233                 return;
 234         if (dev_name == NULL)
 235                 dev_name = "";
 236         wpa_msg_ctrl(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ENROLLEE_SEEN MACSTR
 237                      " %s %s 0x%x %u %u [%s]",
 238                      MAC2STR(addr), uuid,
 239                      wps_dev_type_bin2str(pri_dev_type, devtype,
 240                                           sizeof(devtype)),
 241                      config_methods, dev_password_id, request_type, dev_name);
 242 }
 243
 244
 245 static int str_starts(const char *str, const char *start)
 246 {
 247         return os_strncmp(str, start, os_strlen(start)) == 0;
 248 }
 249
 250
 251 static void wps_reload_config(void *eloop_data, void *user_ctx)
 252 {
 253         struct hostapd_iface *iface = eloop_data;
 254
 255         wpa_printf(MSG_DEBUG, "WPS: Reload configuration data");
 256         if (iface->reload_config(iface) < 0) {
 257                 wpa_printf(MSG_WARNING, "WPS: Failed to reload the updated "
 258                            "configuration");
 259         }
 260 }
 261
 262
 263 static void hapd_new_ap_event(struct hostapd_data *hapd, const u8 *attr,
 264                               size_t attr_len)
 265 {
 266         size_t blen = attr_len * 2 + 1;
 267         char *buf = os_malloc(blen);
 268         if (buf) {
 269                 wpa_snprintf_hex(buf, blen, attr, attr_len);
 270                 wpa_msg(hapd->msg_ctx, MSG_INFO,
 271                         WPS_EVENT_NEW_AP_SETTINGS "%s", buf);
 272                 os_free(buf);
 273         }
 274 }
 275
 276
 277 static int hapd_wps_cred_cb(struct hostapd_data *hapd, void *ctx)
 278 {
 279         const struct wps_credential *cred = ctx;
 280         FILE *oconf, *nconf;
 281         size_t len, i;
 282         char *tmp_fname;
 283         char buf[1024];
 284         int multi_bss;
 285         int wpa;
 286
 287         if (hapd->wps == NULL)
 288                 return 0;
 289
 290         wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
 291                         cred->cred_attr, cred->cred_attr_len);
 292
 293         wpa_printf(MSG_DEBUG, "WPS: Received new AP Settings");
 294         wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
 295         wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
 296                    cred->auth_type);
 297         wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
 298         wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
 299         wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
 300                         cred->key, cred->key_len);
 301         wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
 302                    MAC2STR(cred->mac_addr));
 303
 304         if ((hapd->conf->wps_cred_processing == 1 ||
 305              hapd->conf->wps_cred_processing == 2) && cred->cred_attr) {
 306                 hapd_new_ap_event(hapd, cred->cred_attr, cred->cred_attr_len);
 307         } else if (hapd->conf->wps_cred_processing == 1 ||
 308                    hapd->conf->wps_cred_processing == 2) {
 309                 struct wpabuf *attr;
 310                 attr = wpabuf_alloc(200);
 311                 if (attr && wps_build_credential_wrap(attr, cred) == 0)
 312                         hapd_new_ap_event(hapd, wpabuf_head_u8(attr),
 313                                           wpabuf_len(attr));
 314                 wpabuf_free(attr);
 315         } else
 316                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS);
 317
 318         if (hapd->conf->wps_cred_processing == 1)
 319                 return 0;
 320
 321         os_memcpy(hapd->wps->ssid, cred->ssid, cred->ssid_len);
 322         hapd->wps->ssid_len = cred->ssid_len;
 323         hapd->wps->encr_types = cred->encr_type;
 324         hapd->wps->auth_types = cred->auth_type;
 325         if (cred->key_len == 0) {
 326                 os_free(hapd->wps->network_key);
 327                 hapd->wps->network_key = NULL;
 328                 hapd->wps->network_key_len = 0;
 329         } else {
 330                 if (hapd->wps->network_key == NULL ||
 331                     hapd->wps->network_key_len < cred->key_len) {
 332                         hapd->wps->network_key_len = 0;
 333                         os_free(hapd->wps->network_key);
 334                         hapd->wps->network_key = os_malloc(cred->key_len);
 335                         if (hapd->wps->network_key == NULL)
 336                                 return -1;
 337                 }
 338                 hapd->wps->network_key_len = cred->key_len;
 339                 os_memcpy(hapd->wps->network_key, cred->key, cred->key_len);
 340         }
 341         hapd->wps->wps_state = WPS_STATE_CONFIGURED;
 342
 343         len = os_strlen(hapd->iface->config_fname) + 5;
 344         tmp_fname = os_malloc(len);
 345         if (tmp_fname == NULL)
 346                 return -1;
 347         os_snprintf(tmp_fname, len, "%s-new", hapd->iface->config_fname);
 348
 349         oconf = fopen(hapd->iface->config_fname, "r");
 350         if (oconf == NULL) {
 351                 wpa_printf(MSG_WARNING, "WPS: Could not open current "
 352                            "configuration file");
 353                 os_free(tmp_fname);
 354                 return -1;
 355         }
 356
 357         nconf = fopen(tmp_fname, "w");
 358         if (nconf == NULL) {
 359                 wpa_printf(MSG_WARNING, "WPS: Could not write updated "
 360                            "configuration file");
 361                 os_free(tmp_fname);
 362                 fclose(oconf);
 363                 return -1;
 364         }
 365
 366         fprintf(nconf, "# WPS configuration - START\n");
 367
 368         fprintf(nconf, "wps_state=2\n");
 369
 370         fprintf(nconf, "ssid=");
 371         for (i = 0; i < cred->ssid_len; i++)
 372                 fputc(cred->ssid[i], nconf);
 373         fprintf(nconf, "\n");
 374
 375         if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
 376             (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
 377                 wpa = 3;
 378         else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
 379                 wpa = 2;
 380         else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
 381                 wpa = 1;
 382         else
 383                 wpa = 0;
 384
 385         if (wpa) {
 386                 char *prefix;
 387                 fprintf(nconf, "wpa=%d\n", wpa);
 388
 389                 fprintf(nconf, "wpa_key_mgmt=");
 390                 prefix = "";
 391                 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA)) {
 392                         fprintf(nconf, "WPA-EAP");
 393                         prefix = " ";
 394                 }
 395                 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK))
 396                         fprintf(nconf, "%sWPA-PSK", prefix);
 397                 fprintf(nconf, "\n");
 398
 399                 fprintf(nconf, "wpa_pairwise=");
 400                 prefix = "";
 401                 if (cred->encr_type & WPS_ENCR_AES) {
 402                         fprintf(nconf, "CCMP");
 403                         prefix = " ";
 404                 }
 405                 if (cred->encr_type & WPS_ENCR_TKIP) {
 406                         fprintf(nconf, "%sTKIP", prefix);
 407                 }
 408                 fprintf(nconf, "\n");
 409
 410                 if (cred->key_len >= 8 && cred->key_len < 64) {
 411                         fprintf(nconf, "wpa_passphrase=");
 412                         for (i = 0; i < cred->key_len; i++)
 413                                 fputc(cred->key[i], nconf);
 414                         fprintf(nconf, "\n");
 415                 } else if (cred->key_len == 64) {
 416                         fprintf(nconf, "wpa_psk=");
 417                         for (i = 0; i < cred->key_len; i++)
 418                                 fputc(cred->key[i], nconf);
 419                         fprintf(nconf, "\n");
 420                 } else {
 421                         wpa_printf(MSG_WARNING, "WPS: Invalid key length %lu "
 422                                    "for WPA/WPA2",
 423                                    (unsigned long) cred->key_len);
 424                 }
 425
 426                 fprintf(nconf, "auth_algs=1\n");
 427         } else {
 428                 if ((cred->auth_type & WPS_AUTH_OPEN) &&
 429                     (cred->auth_type & WPS_AUTH_SHARED))
 430                         fprintf(nconf, "auth_algs=3\n");
 431                 else if (cred->auth_type & WPS_AUTH_SHARED)
 432                         fprintf(nconf, "auth_algs=2\n");
 433                 else
 434                         fprintf(nconf, "auth_algs=1\n");
 435
 436                 if (cred->encr_type & WPS_ENCR_WEP && cred->key_idx <= 4) {
 437                         int key_idx = cred->key_idx;
 438                         if (key_idx)
 439                                 key_idx--;
 440                         fprintf(nconf, "wep_default_key=%d\n", key_idx);
 441                         fprintf(nconf, "wep_key%d=", key_idx);
 442                         if (cred->key_len == 10 || cred->key_len == 26) {
 443                                 /* WEP key as a hex string */
 444                                 for (i = 0; i < cred->key_len; i++)
 445                                         fputc(cred->key[i], nconf);
 446                         } else {
 447                                 /* Raw WEP key; convert to hex */
 448                                 for (i = 0; i < cred->key_len; i++)
 449                                         fprintf(nconf, "%02x", cred->key[i]);
 450                         }
 451                         fprintf(nconf, "\n");
 452                 }
 453         }
 454
 455         fprintf(nconf, "# WPS configuration - END\n");
 456
 457         multi_bss = 0;
 458         while (fgets(buf, sizeof(buf), oconf)) {
 459                 if (os_strncmp(buf, "bss=", 4) == 0)
 460                         multi_bss = 1;
 461                 if (!multi_bss &&
 462                     (str_starts(buf, "ssid=") ||
 463                      str_starts(buf, "auth_algs=") ||
 464                      str_starts(buf, "wep_default_key=") ||
 465                      str_starts(buf, "wep_key") ||
 466                      str_starts(buf, "wps_state=") ||
 467                      str_starts(buf, "wpa=") ||
 468                      str_starts(buf, "wpa_psk=") ||
 469                      str_starts(buf, "wpa_pairwise=") ||
 470                      str_starts(buf, "rsn_pairwise=") ||
 471                      str_starts(buf, "wpa_key_mgmt=") ||
 472                      str_starts(buf, "wpa_passphrase="))) {
 473                         fprintf(nconf, "#WPS# %s", buf);
 474                 } else
 475                         fprintf(nconf, "%s", buf);
 476         }
 477
 478         fclose(nconf);
 479         fclose(oconf);
 480
 481         if (rename(tmp_fname, hapd->iface->config_fname) < 0) {
 482                 wpa_printf(MSG_WARNING, "WPS: Failed to rename the updated "
 483                            "configuration file: %s", strerror(errno));
 484                 os_free(tmp_fname);
 485                 return -1;
 486         }
 487
 488         os_free(tmp_fname);
 489
 490         /* Schedule configuration reload after short period of time to allow
 491          * EAP-WSC to be finished.
 492          */
 493         eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
 494                                NULL);
 495
 496         wpa_printf(MSG_DEBUG, "WPS: AP configuration updated");
 497
 498         return 0;
 499 }
 500
 501
 502 static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred)
 503 {
 504         struct hostapd_data *hapd = ctx;
 505         return hostapd_wps_for_each(hapd, hapd_wps_cred_cb, (void *) cred);
 506 }
 507
 508
 509 static void hostapd_wps_reenable_ap_pin(void *eloop_data, void *user_ctx)
 510 {
 511         struct hostapd_data *hapd = eloop_data;
 512
 513         if (hapd->conf->ap_setup_locked)
 514                 return;
 515         if (hapd->ap_pin_failures_consecutive >= 10)
 516                 return;
 517
 518         wpa_printf(MSG_DEBUG, "WPS: Re-enable AP PIN");
 519         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
 520         hapd->wps->ap_setup_locked = 0;
 521         wps_registrar_update_ie(hapd->wps->registrar);
 522 }
 523
 524
 525 static int wps_pwd_auth_fail(struct hostapd_data *hapd, void *ctx)
 526 {
 527         struct wps_event_pwd_auth_fail *data = ctx;
 528
 529         if (!data->enrollee || hapd->conf->ap_pin == NULL || hapd->wps == NULL)
 530                 return 0;
 531
 532         /*
 533          * Registrar failed to prove its knowledge of the AP PIN. Lock AP setup
 534          * for some time if this happens multiple times to slow down brute
 535          * force attacks.
 536          */
 537         hapd->ap_pin_failures++;
 538         hapd->ap_pin_failures_consecutive++;
 539         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u "
 540                    "(%u consecutive)",
 541                    hapd->ap_pin_failures, hapd->ap_pin_failures_consecutive);
 542         if (hapd->ap_pin_failures < 3)
 543                 return 0;
 544
 545         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_LOCKED);
 546         hapd->wps->ap_setup_locked = 1;
 547
 548         wps_registrar_update_ie(hapd->wps->registrar);
 549
 550         if (!hapd->conf->ap_setup_locked &&
 551             hapd->ap_pin_failures_consecutive >= 10) {
 552                 /*
 553                  * In indefinite lockdown - disable automatic AP PIN
 554                  * reenablement.
 555                  */
 556                 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
 557                 wpa_printf(MSG_DEBUG, "WPS: AP PIN disabled indefinitely");
 558         } else if (!hapd->conf->ap_setup_locked) {
 559                 if (hapd->ap_pin_lockout_time == 0)
 560                         hapd->ap_pin_lockout_time = 60;
 561                 else if (hapd->ap_pin_lockout_time < 365 * 24 * 60 * 60 &&
 562                          (hapd->ap_pin_failures % 3) == 0)
 563                         hapd->ap_pin_lockout_time *= 2;
 564
 565                 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN for %u seconds",
 566                            hapd->ap_pin_lockout_time);
 567                 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
 568                 eloop_register_timeout(hapd->ap_pin_lockout_time, 0,
 569                                        hostapd_wps_reenable_ap_pin, hapd,
 570                                        NULL);
 571         }
 572
 573         return 0;
 574 }
 575
 576
 577 static void hostapd_pwd_auth_fail(struct hostapd_data *hapd,
 578                                   struct wps_event_pwd_auth_fail *data)
 579 {
 580         hostapd_wps_for_each(hapd, wps_pwd_auth_fail, data);
 581 }
 582
 583
 584 static int wps_ap_pin_success(struct hostapd_data *hapd, void *ctx)
 585 {
 586         if (hapd->conf->ap_pin == NULL || hapd->wps == NULL)
 587                 return 0;
 588
 589         if (hapd->ap_pin_failures_consecutive == 0)
 590                 return 0;
 591
 592         wpa_printf(MSG_DEBUG, "WPS: Clear consecutive AP PIN failure counter "
 593                    "- total validation failures %u (%u consecutive)",
 594                    hapd->ap_pin_failures, hapd->ap_pin_failures_consecutive);
 595         hapd->ap_pin_failures_consecutive = 0;
 596
 597         return 0;
 598 }
 599
 600
 601 static void hostapd_wps_ap_pin_success(struct hostapd_data *hapd)
 602 {
 603         hostapd_wps_for_each(hapd, wps_ap_pin_success, NULL);
 604 }
 605
 606
 607 static const char * wps_event_fail_reason[NUM_WPS_EI_VALUES] = {
 608         "No Error", /* WPS_EI_NO_ERROR */
 609         "TKIP Only Prohibited", /* WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED */
 610         "WEP Prohibited" /* WPS_EI_SECURITY_WEP_PROHIBITED */
 611 };
 612
 613 static void hostapd_wps_event_fail(struct hostapd_data *hapd,
 614                                    struct wps_event_fail *fail)
 615 {
 616         if (fail->error_indication > 0 &&
 617             fail->error_indication < NUM_WPS_EI_VALUES) {
 618                 wpa_msg(hapd->msg_ctx, MSG_INFO,
 619                         WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
 620                         fail->msg, fail->config_error, fail->error_indication,
 621                         wps_event_fail_reason[fail->error_indication]);
 622         } else {
 623                 wpa_msg(hapd->msg_ctx, MSG_INFO,
 624                         WPS_EVENT_FAIL "msg=%d config_error=%d",
 625                         fail->msg, fail->config_error);
 626         }
 627 }
 628
 629
 630 static void hostapd_wps_event_cb(void *ctx, enum wps_event event,
 631                                  union wps_event_data *data)
 632 {
 633         struct hostapd_data *hapd = ctx;
 634
 635         switch (event) {
 636         case WPS_EV_M2D:
 637                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_M2D);
 638                 break;
 639         case WPS_EV_FAIL:
 640                 hostapd_wps_event_fail(hapd, &data->fail);
 641                 break;
 642         case WPS_EV_SUCCESS:
 643                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_SUCCESS);
 644                 break;
 645         case WPS_EV_PWD_AUTH_FAIL:
 646                 hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail);
 647                 break;
 648         case WPS_EV_PBC_OVERLAP:
 649                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_OVERLAP);
 650                 break;
 651         case WPS_EV_PBC_TIMEOUT:
 652                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_TIMEOUT);
 653                 break;
 654         case WPS_EV_ER_AP_ADD:
 655                 break;
 656         case WPS_EV_ER_AP_REMOVE:
 657                 break;
 658         case WPS_EV_ER_ENROLLEE_ADD:
 659                 break;
 660         case WPS_EV_ER_ENROLLEE_REMOVE:
 661                 break;
 662         case WPS_EV_ER_AP_SETTINGS:
 663                 break;
 664         case WPS_EV_ER_SET_SELECTED_REGISTRAR:
 665                 break;
 666         case WPS_EV_AP_PIN_SUCCESS:
 667                 hostapd_wps_ap_pin_success(hapd);
 668                 break;
 669         }
 670         if (hapd->wps_event_cb)
 671                 hapd->wps_event_cb(hapd->wps_event_cb_ctx, event, data);
 672 }
 673
 674
 675 static void hostapd_wps_clear_ies(struct hostapd_data *hapd)
 676 {
 677         wpabuf_free(hapd->wps_beacon_ie);
 678         hapd->wps_beacon_ie = NULL;
 679
 680         wpabuf_free(hapd->wps_probe_resp_ie);
 681         hapd->wps_probe_resp_ie = NULL;
 682
 683         hostapd_set_ap_wps_ie(hapd);
 684 }
 685
 686
 687 static int get_uuid_cb(struct hostapd_iface *iface, void *ctx)
 688 {
 689         const u8 **uuid = ctx;
 690         size_t j;
 691
 692         if (iface == NULL)
 693                 return 0;
 694         for (j = 0; j < iface->num_bss; j++) {
 695                 struct hostapd_data *hapd = iface->bss[j];
 696                 if (hapd->wps && !is_nil_uuid(hapd->wps->uuid)) {
 697                         *uuid = hapd->wps->uuid;
 698                         return 1;
 699                 }
 700         }
 701
 702         return 0;
 703 }
 704
 705
 706 static const u8 * get_own_uuid(struct hostapd_iface *iface)
 707 {
 708         const u8 *uuid;
 709         if (iface->for_each_interface == NULL)
 710                 return NULL;
 711         uuid = NULL;
 712         iface->for_each_interface(iface->interfaces, get_uuid_cb, &uuid);
 713         return uuid;
 714 }
 715
 716
 717 static int count_interface_cb(struct hostapd_iface *iface, void *ctx)
 718 {
 719         int *count= ctx;
 720         (*count)++;
 721         return 0;
 722 }
 723
 724
 725 static int interface_count(struct hostapd_iface *iface)
 726 {
 727         int count = 0;
 728         if (iface->for_each_interface == NULL)
 729                 return 0;
 730         iface->for_each_interface(iface->interfaces, count_interface_cb,
 731                                   &count);
 732         return count;
 733 }
 734
 735
 736 static int hostapd_wps_set_vendor_ext(struct hostapd_data *hapd,
 737                                       struct wps_context *wps)
 738 {
 739         int i;
 740
 741         for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++) {
 742                 wpabuf_free(wps->dev.vendor_ext[i]);
 743                 wps->dev.vendor_ext[i] = NULL;
 744
 745                 if (hapd->conf->wps_vendor_ext[i] == NULL)
 746                         continue;
 747
 748                 wps->dev.vendor_ext[i] =
 749                         wpabuf_dup(hapd->conf->wps_vendor_ext[i]);
 750                 if (wps->dev.vendor_ext[i] == NULL) {
 751                         while (--i >= 0)
 752                                 wpabuf_free(wps->dev.vendor_ext[i]);
 753                         return -1;
 754                 }
 755         }
 756
 757         return 0;
 758 }
 759
 760
 761 int hostapd_init_wps(struct hostapd_data *hapd,
 762                      struct hostapd_bss_config *conf)
 763 {
 764         struct wps_context *wps;
 765         struct wps_registrar_config cfg;
 766
 767         if (conf->wps_state == 0) {
 768                 hostapd_wps_clear_ies(hapd);
 769                 return 0;
 770         }
 771
 772         wps = os_zalloc(sizeof(*wps));
 773         if (wps == NULL)
 774                 return -1;
 775
 776         wps->cred_cb = hostapd_wps_cred_cb;
 777         wps->event_cb = hostapd_wps_event_cb;
 778         wps->cb_ctx = hapd;
 779
 780         os_memset(&cfg, 0, sizeof(cfg));
 781         wps->wps_state = hapd->conf->wps_state;
 782         wps->ap_setup_locked = hapd->conf->ap_setup_locked;
 783         if (is_nil_uuid(hapd->conf->uuid)) {
 784                 const u8 *uuid;
 785                 uuid = get_own_uuid(hapd->iface);
 786                 if (uuid) {
 787                         os_memcpy(wps->uuid, uuid, UUID_LEN);
 788                         wpa_hexdump(MSG_DEBUG, "WPS: Clone UUID from another "
 789                                     "interface", wps->uuid, UUID_LEN);
 790                 } else {
 791                         uuid_gen_mac_addr(hapd->own_addr, wps->uuid);
 792                         wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
 793                                     "address", wps->uuid, UUID_LEN);
 794                 }
 795         } else {
 796                 os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN);
 797                 wpa_hexdump(MSG_DEBUG, "WPS: Use configured UUID",
 798                             wps->uuid, UUID_LEN);
 799         }
 800         wps->ssid_len = hapd->conf->ssid.ssid_len;
 801         os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len);
 802         wps->ap = 1;
 803         os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN);
 804         wps->dev.device_name = hapd->conf->device_name ?
 805                 os_strdup(hapd->conf->device_name) : NULL;
 806         wps->dev.manufacturer = hapd->conf->manufacturer ?
 807                 os_strdup(hapd->conf->manufacturer) : NULL;
 808         wps->dev.model_name = hapd->conf->model_name ?
 809                 os_strdup(hapd->conf->model_name) : NULL;
 810         wps->dev.model_number = hapd->conf->model_number ?
 811                 os_strdup(hapd->conf->model_number) : NULL;
 812         wps->dev.serial_number = hapd->conf->serial_number ?
 813                 os_strdup(hapd->conf->serial_number) : NULL;
 814         wps->config_methods =
 815                 wps_config_methods_str2bin(hapd->conf->config_methods);
 816 #ifdef CONFIG_WPS2
 817         if ((wps->config_methods &
 818              (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
 819               WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
 820                 wpa_printf(MSG_INFO, "WPS: Converting display to "
 821                            "virtual_display for WPS 2.0 compliance");
 822                 wps->config_methods |= WPS_CONFIG_VIRT_DISPLAY;
 823         }
 824         if ((wps->config_methods &
 825              (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
 826               WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
 827                 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
 828                            "virtual_push_button for WPS 2.0 compliance");
 829                 wps->config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
 830         }
 831 #endif /* CONFIG_WPS2 */
 832         os_memcpy(wps->dev.pri_dev_type, hapd->conf->device_type,
 833                   WPS_DEV_TYPE_LEN);
 834
 835         if (hostapd_wps_set_vendor_ext(hapd, wps) < 0) {
 836                 os_free(wps);
 837                 return -1;
 838         }
 839
 840         wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version);
 841
 842         if (conf->wps_rf_bands) {
 843                 wps->dev.rf_bands = conf->wps_rf_bands;
 844         } else {
 845                 wps->dev.rf_bands =
 846                         hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
 847                         WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
 848         }
 849
 850         if (conf->wpa & WPA_PROTO_RSN) {
 851                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
 852                         wps->auth_types |= WPS_AUTH_WPA2PSK;
 853                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 854                         wps->auth_types |= WPS_AUTH_WPA2;
 855
 856                 if (conf->rsn_pairwise & WPA_CIPHER_CCMP)
 857                         wps->encr_types |= WPS_ENCR_AES;
 858                 if (conf->rsn_pairwise & WPA_CIPHER_TKIP)
 859                         wps->encr_types |= WPS_ENCR_TKIP;
 860         }
 861
 862         if (conf->wpa & WPA_PROTO_WPA) {
 863                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
 864                         wps->auth_types |= WPS_AUTH_WPAPSK;
 865                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 866                         wps->auth_types |= WPS_AUTH_WPA;
 867
 868                 if (conf->wpa_pairwise & WPA_CIPHER_CCMP)
 869                         wps->encr_types |= WPS_ENCR_AES;
 870                 if (conf->wpa_pairwise & WPA_CIPHER_TKIP)
 871                         wps->encr_types |= WPS_ENCR_TKIP;
 872         }
 873
 874         if (conf->ssid.security_policy == SECURITY_PLAINTEXT) {
 875                 wps->encr_types |= WPS_ENCR_NONE;
 876                 wps->auth_types |= WPS_AUTH_OPEN;
 877         } else if (conf->ssid.security_policy == SECURITY_STATIC_WEP) {
 878                 wps->encr_types |= WPS_ENCR_WEP;
 879                 if (conf->auth_algs & WPA_AUTH_ALG_OPEN)
 880                         wps->auth_types |= WPS_AUTH_OPEN;
 881                 if (conf->auth_algs & WPA_AUTH_ALG_SHARED)
 882                         wps->auth_types |= WPS_AUTH_SHARED;
 883         } else if (conf->ssid.security_policy == SECURITY_IEEE_802_1X) {
 884                 wps->auth_types |= WPS_AUTH_OPEN;
 885                 if (conf->default_wep_key_len)
 886                         wps->encr_types |= WPS_ENCR_WEP;
 887                 else
 888                         wps->encr_types |= WPS_ENCR_NONE;
 889         }
 890
 891         if (conf->ssid.wpa_psk_file) {
 892                 /* Use per-device PSKs */
 893         } else if (conf->ssid.wpa_passphrase) {
 894                 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase);
 895                 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase);
 896         } else if (conf->ssid.wpa_psk) {
 897                 wps->network_key = os_malloc(2 * PMK_LEN + 1);
 898                 if (wps->network_key == NULL) {
 899                         os_free(wps);
 900                         return -1;
 901                 }
 902                 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1,
 903                                  conf->ssid.wpa_psk->psk, PMK_LEN);
 904                 wps->network_key_len = 2 * PMK_LEN;
 905         } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) {
 906                 wps->network_key = os_malloc(conf->ssid.wep.len[0]);
 907                 if (wps->network_key == NULL) {
 908                         os_free(wps);
 909                         return -1;
 910                 }
 911                 os_memcpy(wps->network_key, conf->ssid.wep.key[0],
 912                           conf->ssid.wep.len[0]);
 913                 wps->network_key_len = conf->ssid.wep.len[0];
 914         }
 915
 916         if (conf->ssid.wpa_psk) {
 917                 os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN);
 918                 wps->psk_set = 1;
 919         }
 920
 921         if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) {
 922                 /* Override parameters to enable security by default */
 923                 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
 924                 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
 925         }
 926
 927         wps->ap_settings = conf->ap_settings;
 928         wps->ap_settings_len = conf->ap_settings_len;
 929
 930         cfg.new_psk_cb = hostapd_wps_new_psk_cb;
 931         cfg.set_ie_cb = hostapd_wps_set_ie_cb;
 932         cfg.pin_needed_cb = hostapd_wps_pin_needed_cb;
 933         cfg.reg_success_cb = hostapd_wps_reg_success_cb;
 934         cfg.enrollee_seen_cb = hostapd_wps_enrollee_seen_cb;
 935         cfg.cb_ctx = hapd;
 936         cfg.skip_cred_build = conf->skip_cred_build;
 937         cfg.extra_cred = conf->extra_cred;
 938         cfg.extra_cred_len = conf->extra_cred_len;
 939         cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) &&
 940                 conf->skip_cred_build;
 941         if (conf->ssid.security_policy == SECURITY_STATIC_WEP)
 942                 cfg.static_wep_only = 1;
 943         cfg.dualband = interface_count(hapd->iface) > 1;
 944         if (cfg.dualband)
 945                 wpa_printf(MSG_DEBUG, "WPS: Dualband AP");
 946
 947         wps->registrar = wps_registrar_init(wps, &cfg);
 948         if (wps->registrar == NULL) {
 949                 wpa_printf(MSG_ERROR, "Failed to initialize WPS Registrar");
 950                 os_free(wps->network_key);
 951                 os_free(wps);
 952                 return -1;
 953         }
 954
 955 #ifdef CONFIG_WPS_UPNP
 956         wps->friendly_name = hapd->conf->friendly_name;
 957         wps->manufacturer_url = hapd->conf->manufacturer_url;
 958         wps->model_description = hapd->conf->model_description;
 959         wps->model_url = hapd->conf->model_url;
 960         wps->upc = hapd->conf->upc;
 961 #endif /* CONFIG_WPS_UPNP */
 962
 963         hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd);
 964
 965         hapd->wps = wps;
 966
 967         return 0;
 968 }
 969
 970
 971 int hostapd_init_wps_complete(struct hostapd_data *hapd)
 972 {
 973         struct wps_context *wps = hapd->wps;
 974
 975         if (wps == NULL)
 976                 return 0;
 977
 978 #ifdef CONFIG_WPS_UPNP
 979         if (hostapd_wps_upnp_init(hapd, wps) < 0) {
 980                 wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP");
 981                 wps_registrar_deinit(wps->registrar);
 982                 os_free(wps->network_key);
 983                 os_free(wps);
 984                 hapd->wps = NULL;
 985                 return -1;
 986         }
 987 #endif /* CONFIG_WPS_UPNP */
 988
 989         return 0;
 990 }
 991
 992
 993 void hostapd_deinit_wps(struct hostapd_data *hapd)
 994 {
 995         eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
 996         eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
 997         if (hapd->wps == NULL)
 998                 return;
 999 #ifdef CONFIG_WPS_UPNP
1000         hostapd_wps_upnp_deinit(hapd);
1001 #endif /* CONFIG_WPS_UPNP */
1002         wps_registrar_deinit(hapd->wps->registrar);
1003         os_free(hapd->wps->network_key);
1004         wps_device_data_free(&hapd->wps->dev);
1005         wpabuf_free(hapd->wps->dh_pubkey);
1006         wpabuf_free(hapd->wps->dh_privkey);
1007         wpabuf_free(hapd->wps->oob_conf.pubkey_hash);
1008         wpabuf_free(hapd->wps->oob_conf.dev_password);
1009         wps_free_pending_msgs(hapd->wps->upnp_msgs);
1010         os_free(hapd->wps);
1011         hapd->wps = NULL;
1012         hostapd_wps_clear_ies(hapd);
1013 }
1014
1015
1016 void hostapd_update_wps(struct hostapd_data *hapd)
1017 {
1018         if (hapd->wps == NULL)
1019                 return;
1020
1021 #ifdef CONFIG_WPS_UPNP
1022         hapd->wps->friendly_name = hapd->conf->friendly_name;
1023         hapd->wps->manufacturer_url = hapd->conf->manufacturer_url;
1024         hapd->wps->model_description = hapd->conf->model_description;
1025         hapd->wps->model_url = hapd->conf->model_url;
1026         hapd->wps->upc = hapd->conf->upc;
1027 #endif /* CONFIG_WPS_UPNP */
1028
1029         hostapd_wps_set_vendor_ext(hapd, hapd->wps);
1030
1031         if (hapd->conf->wps_state)
1032                 wps_registrar_update_ie(hapd->wps->registrar);
1033         else
1034                 hostapd_deinit_wps(hapd);
1035 }
1036
1037
1038 struct wps_add_pin_data {
1039         const u8 *addr;
1040         const u8 *uuid;
1041         const u8 *pin;
1042         size_t pin_len;
1043         int timeout;
1044         int added;
1045 };
1046
1047
1048 static int wps_add_pin(struct hostapd_data *hapd, void *ctx)
1049 {
1050         struct wps_add_pin_data *data = ctx;
1051         int ret;
1052
1053         if (hapd->wps == NULL)
1054                 return 0;
1055         ret = wps_registrar_add_pin(hapd->wps->registrar, data->addr,
1056                                     data->uuid, data->pin, data->pin_len,
1057                                     data->timeout);
1058         if (ret == 0)
1059                 data->added++;
1060         return ret;
1061 }
1062
1063
1064 int hostapd_wps_add_pin(struct hostapd_data *hapd, const u8 *addr,
1065                         const char *uuid, const char *pin, int timeout)
1066 {
1067         u8 u[UUID_LEN];
1068         struct wps_add_pin_data data;
1069
1070         data.addr = addr;
1071         data.uuid = u;
1072         data.pin = (const u8 *) pin;
1073         data.pin_len = os_strlen(pin);
1074         data.timeout = timeout;
1075         data.added = 0;
1076
1077         if (os_strcmp(uuid, "any") == 0)
1078                 data.uuid = NULL;
1079         else {
1080                 if (uuid_str2bin(uuid, u))
1081                         return -1;
1082                 data.uuid = u;
1083         }
1084         if (hostapd_wps_for_each(hapd, wps_add_pin, &data) < 0)
1085                 return -1;
1086         return data.added ? 0 : -1;
1087 }
1088
1089
1090 static int wps_button_pushed(struct hostapd_data *hapd, void *ctx)
1091 {
1092         const u8 *p2p_dev_addr = ctx;
1093         if (hapd->wps == NULL)
1094                 return 0;
1095         return wps_registrar_button_pushed(hapd->wps->registrar, p2p_dev_addr);
1096 }
1097
1098
1099 int hostapd_wps_button_pushed(struct hostapd_data *hapd,
1100                               const u8 *p2p_dev_addr)
1101 {
1102         return hostapd_wps_for_each(hapd, wps_button_pushed,
1103                                     (void *) p2p_dev_addr);
1104 }
1105
1106
1107 static int wps_cancel(struct hostapd_data *hapd, void *ctx)
1108 {
1109         if (hapd->wps == NULL)
1110                 return 0;
1111
1112         wps_registrar_wps_cancel(hapd->wps->registrar);
1113         ap_for_each_sta(hapd, ap_sta_wps_cancel, NULL);
1114
1115         return 0;
1116 }
1117
1118
1119 int hostapd_wps_cancel(struct hostapd_data *hapd)
1120 {
1121         return hostapd_wps_for_each(hapd, wps_cancel, NULL);
1122 }
1123
1124
1125 #ifdef CONFIG_WPS_OOB
1126 int hostapd_wps_start_oob(struct hostapd_data *hapd, char *device_type,
1127                           char *path, char *method, char *name)
1128 {
1129         struct wps_context *wps = hapd->wps;
1130         struct oob_device_data *oob_dev;
1131
1132         oob_dev = wps_get_oob_device(device_type);
1133         if (oob_dev == NULL)
1134                 return -1;
1135         oob_dev->device_path = path;
1136         oob_dev->device_name = name;
1137         wps->oob_conf.oob_method = wps_get_oob_method(method);
1138
1139         if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) {
1140                 /*
1141                  * Use pre-configured DH keys in order to be able to write the
1142                  * key hash into the OOB file.
1143                  */
1144                 wpabuf_free(wps->dh_pubkey);
1145                 wpabuf_free(wps->dh_privkey);
1146                 wps->dh_privkey = NULL;
1147                 wps->dh_pubkey = dh_init(dh_groups_get(WPS_DH_GROUP),
1148                                          &wps->dh_privkey);
1149                 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
1150                 if (wps->dh_pubkey == NULL) {
1151                         wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
1152                                    "Diffie-Hellman handshake");
1153                         return -1;
1154                 }
1155         }
1156
1157         if (wps_process_oob(wps, oob_dev, 1) < 0)
1158                 goto error;
1159
1160         if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
1161              wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
1162             hostapd_wps_add_pin(hapd, NULL, "any",
1163                                 wpabuf_head(wps->oob_conf.dev_password), 0) <
1164             0)
1165                 goto error;
1166
1167         return 0;
1168
1169 error:
1170         wpabuf_free(wps->dh_pubkey);
1171         wps->dh_pubkey = NULL;
1172         wpabuf_free(wps->dh_privkey);
1173         wps->dh_privkey = NULL;
1174         return -1;
1175 }
1176 #endif /* CONFIG_WPS_OOB */
1177
1178
1179 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da,
1180                                     const u8 *bssid,
1181                                     const u8 *ie, size_t ie_len)
1182 {
1183         struct hostapd_data *hapd = ctx;
1184         struct wpabuf *wps_ie;
1185         struct ieee802_11_elems elems;
1186
1187         if (hapd->wps == NULL)
1188                 return 0;
1189
1190         if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) {
1191                 wpa_printf(MSG_DEBUG, "WPS: Could not parse ProbeReq from "
1192                            MACSTR, MAC2STR(addr));
1193                 return 0;
1194         }
1195
1196         if (elems.ssid && elems.ssid_len > 0 &&
1197             (elems.ssid_len != hapd->conf->ssid.ssid_len ||
1198              os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) !=
1199              0))
1200                 return 0; /* Not for us */
1201
1202         wps_ie = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
1203         if (wps_ie == NULL)
1204                 return 0;
1205         if (wps_validate_probe_req(wps_ie, addr) < 0) {
1206                 wpabuf_free(wps_ie);
1207                 return 0;
1208         }
1209
1210         if (wpabuf_len(wps_ie) > 0) {
1211                 int p2p_wildcard = 0;
1212 #ifdef CONFIG_P2P
1213                 if (elems.ssid && elems.ssid_len == P2P_WILDCARD_SSID_LEN &&
1214                     os_memcmp(elems.ssid, P2P_WILDCARD_SSID,
1215                               P2P_WILDCARD_SSID_LEN) == 0)
1216                         p2p_wildcard = 1;
1217 #endif /* CONFIG_P2P */
1218                 wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie,
1219                                            p2p_wildcard);
1220 #ifdef CONFIG_WPS_UPNP
1221                 /* FIX: what exactly should be included in the WLANEvent?
1222                  * WPS attributes? Full ProbeReq frame? */
1223                 if (!p2p_wildcard)
1224                         upnp_wps_device_send_wlan_event(
1225                                 hapd->wps_upnp, addr,
1226                                 UPNP_WPS_WLANEVENT_TYPE_PROBE, wps_ie);
1227 #endif /* CONFIG_WPS_UPNP */
1228         }
1229
1230         wpabuf_free(wps_ie);
1231
1232         return 0;
1233 }
1234
1235
1236 #ifdef CONFIG_WPS_UPNP
1237
1238 static int hostapd_rx_req_put_wlan_response(
1239         void *priv, enum upnp_wps_wlanevent_type ev_type,
1240         const u8 *mac_addr, const struct wpabuf *msg,
1241         enum wps_msg_type msg_type)
1242 {
1243         struct hostapd_data *hapd = priv;
1244         struct sta_info *sta;
1245         struct upnp_pending_message *p;
1246
1247         wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr="
1248                    MACSTR, ev_type, MAC2STR(mac_addr));
1249         wpa_hexdump(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage",
1250                     wpabuf_head(msg), wpabuf_len(msg));
1251         if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) {
1252                 wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected "
1253                            "PutWLANResponse WLANEventType %d", ev_type);
1254                 return -1;
1255         }
1256
1257         /*
1258          * EAP response to ongoing to WPS Registration. Send it to EAP-WSC
1259          * server implementation for delivery to the peer.
1260          */
1261
1262         sta = ap_get_sta(hapd, mac_addr);
1263 #ifndef CONFIG_WPS_STRICT
1264         if (!sta) {
1265                 /*
1266                  * Workaround - Intel wsccmd uses bogus NewWLANEventMAC:
1267                  * Pick STA that is in an ongoing WPS registration without
1268                  * checking the MAC address.
1269                  */
1270                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based "
1271                            "on NewWLANEventMAC; try wildcard match");
1272                 for (sta = hapd->sta_list; sta; sta = sta->next) {
1273                         if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS))
1274                                 break;
1275                 }
1276         }
1277 #endif /* CONFIG_WPS_STRICT */
1278
1279         if (!sta || !(sta->flags & WLAN_STA_WPS)) {
1280                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found");
1281                 return 0;
1282         }
1283
1284         p = os_zalloc(sizeof(*p));
1285         if (p == NULL)
1286                 return -1;
1287         os_memcpy(p->addr, sta->addr, ETH_ALEN);
1288         p->msg = wpabuf_dup(msg);
1289         p->type = msg_type;
1290         p->next = hapd->wps->upnp_msgs;
1291         hapd->wps->upnp_msgs = p;
1292
1293         return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap);
1294 }
1295
1296
1297 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
1298                                  struct wps_context *wps)
1299 {
1300         struct upnp_wps_device_ctx *ctx;
1301
1302         if (!hapd->conf->upnp_iface)
1303                 return 0;
1304         ctx = os_zalloc(sizeof(*ctx));
1305         if (ctx == NULL)
1306                 return -1;
1307
1308         ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response;
1309         if (hapd->conf->ap_pin)
1310                 ctx->ap_pin = os_strdup(hapd->conf->ap_pin);
1311
1312         hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd,
1313                                               hapd->conf->upnp_iface);
1314         if (hapd->wps_upnp == NULL)
1315                 return -1;
1316         wps->wps_upnp = hapd->wps_upnp;
1317
1318         return 0;
1319 }
1320
1321
1322 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd)
1323 {
1324         upnp_wps_device_deinit(hapd->wps_upnp, hapd);
1325 }
1326
1327 #endif /* CONFIG_WPS_UPNP */
1328
1329
1330 int hostapd_wps_get_mib_sta(struct hostapd_data *hapd, const u8 *addr,
1331                             char *buf, size_t buflen)
1332 {
1333         if (hapd->wps == NULL)
1334                 return 0;
1335         return wps_registrar_get_info(hapd->wps->registrar, addr, buf, buflen);
1336 }
1337
1338
1339 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
1340 {
1341         struct hostapd_data *hapd = eloop_data;
1342         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
1343         hostapd_wps_ap_pin_disable(hapd);
1344         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_PIN_DISABLED);
1345 }
1346
1347
1348 static void hostapd_wps_ap_pin_enable(struct hostapd_data *hapd, int timeout)
1349 {
1350         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
1351         hapd->ap_pin_failures = 0;
1352         hapd->ap_pin_failures_consecutive = 0;
1353         hapd->conf->ap_setup_locked = 0;
1354         if (hapd->wps->ap_setup_locked) {
1355                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
1356                 hapd->wps->ap_setup_locked = 0;
1357                 wps_registrar_update_ie(hapd->wps->registrar);
1358         }
1359         eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1360         if (timeout > 0)
1361                 eloop_register_timeout(timeout, 0,
1362                                        hostapd_wps_ap_pin_timeout, hapd, NULL);
1363 }
1364
1365
1366 static int wps_ap_pin_disable(struct hostapd_data *hapd, void *ctx)
1367 {
1368         os_free(hapd->conf->ap_pin);
1369         hapd->conf->ap_pin = NULL;
1370 #ifdef CONFIG_WPS_UPNP
1371         upnp_wps_set_ap_pin(hapd->wps_upnp, NULL);
1372 #endif /* CONFIG_WPS_UPNP */
1373         eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1374         return 0;
1375 }
1376
1377
1378 void hostapd_wps_ap_pin_disable(struct hostapd_data *hapd)
1379 {
1380         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
1381         hostapd_wps_for_each(hapd, wps_ap_pin_disable, NULL);
1382 }
1383
1384
1385 struct wps_ap_pin_data {
1386         char pin_txt[9];
1387         int timeout;
1388 };
1389
1390
1391 static int wps_ap_pin_set(struct hostapd_data *hapd, void *ctx)
1392 {
1393         struct wps_ap_pin_data *data = ctx;
1394         os_free(hapd->conf->ap_pin);
1395         hapd->conf->ap_pin = os_strdup(data->pin_txt);
1396 #ifdef CONFIG_WPS_UPNP
1397         upnp_wps_set_ap_pin(hapd->wps_upnp, data->pin_txt);
1398 #endif /* CONFIG_WPS_UPNP */
1399         hostapd_wps_ap_pin_enable(hapd, data->timeout);
1400         return 0;
1401 }
1402
1403
1404 const char * hostapd_wps_ap_pin_random(struct hostapd_data *hapd, int timeout)
1405 {
1406         unsigned int pin;
1407         struct wps_ap_pin_data data;
1408
1409         pin = wps_generate_pin();
1410         os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%08u", pin);
1411         data.timeout = timeout;
1412         hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1413         return hapd->conf->ap_pin;
1414 }
1415
1416
1417 const char * hostapd_wps_ap_pin_get(struct hostapd_data *hapd)
1418 {
1419         return hapd->conf->ap_pin;
1420 }
1421
1422
1423 int hostapd_wps_ap_pin_set(struct hostapd_data *hapd, const char *pin,
1424                            int timeout)
1425 {
1426         struct wps_ap_pin_data data;
1427         int ret;
1428
1429         ret = os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%s", pin);
1430         if (ret < 0 || ret >= (int) sizeof(data.pin_txt))
1431                 return -1;
1432         data.timeout = timeout;
1433         return hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1434 }
1435
1436
1437 static int wps_update_ie(struct hostapd_data *hapd, void *ctx)
1438 {
1439         if (hapd->wps)
1440                 wps_registrar_update_ie(hapd->wps->registrar);
1441         return 0;
1442 }
1443
1444
1445 void hostapd_wps_update_ie(struct hostapd_data *hapd)
1446 {
1447         hostapd_wps_for_each(hapd, wps_update_ie, NULL);
1448 }
1449
1450
1451 int hostapd_wps_config_ap(struct hostapd_data *hapd, const char *ssid,
1452                           const char *auth, const char *encr, const char *key)
1453 {
1454         struct wps_credential cred;
1455         size_t len;
1456
1457         os_memset(&cred, 0, sizeof(cred));
1458
1459         len = os_strlen(ssid);
1460         if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
1461             hexstr2bin(ssid, cred.ssid, len / 2))
1462                 return -1;
1463         cred.ssid_len = len / 2;
1464
1465         if (os_strncmp(auth, "OPEN", 4) == 0)
1466                 cred.auth_type = WPS_AUTH_OPEN;
1467         else if (os_strncmp(auth, "WPAPSK", 6) == 0)
1468                 cred.auth_type = WPS_AUTH_WPAPSK;
1469         else if (os_strncmp(auth, "WPA2PSK", 7) == 0)
1470                 cred.auth_type = WPS_AUTH_WPA2PSK;
1471         else
1472                 return -1;
1473
1474         if (encr) {
1475                 if (os_strncmp(encr, "NONE", 4) == 0)
1476                         cred.encr_type = WPS_ENCR_NONE;
1477                 else if (os_strncmp(encr, "WEP", 3) == 0)
1478                         cred.encr_type = WPS_ENCR_WEP;
1479                 else if (os_strncmp(encr, "TKIP", 4) == 0)
1480                         cred.encr_type = WPS_ENCR_TKIP;
1481                 else if (os_strncmp(encr, "CCMP", 4) == 0)
1482                         cred.encr_type = WPS_ENCR_AES;
1483                 else
1484                         return -1;
1485         } else
1486                 cred.encr_type = WPS_ENCR_NONE;
1487
1488         if (key) {
1489                 len = os_strlen(key);
1490                 if ((len & 1) || len > 2 * sizeof(cred.key) ||
1491                     hexstr2bin(key, cred.key, len / 2))
1492                         return -1;
1493                 cred.key_len = len / 2;
1494         }
1495
1496         return wps_registrar_config_ap(hapd->wps->registrar, &cred);
1497 }