wpa_supplicant/wps_supplicant.c

   1 /*
   2  * wpa_supplicant / 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 "includes.h"
  16
  17 #include "common.h"
  18 #include "eloop.h"
  19 #include "uuid.h"
  20 #include "crypto/dh_group5.h"
  21 #include "common/ieee802_11_defs.h"
  22 #include "common/ieee802_11_common.h"
  23 #include "common/wpa_common.h"
  24 #include "common/wpa_ctrl.h"
  25 #include "eap_common/eap_wsc_common.h"
  26 #include "eap_peer/eap.h"
  27 #include "rsn_supp/wpa.h"
  28 #include "config.h"
  29 #include "wpa_supplicant_i.h"
  30 #include "driver_i.h"
  31 #include "notify.h"
  32 #include "blacklist.h"
  33 #include "bss.h"
  34 #include "scan.h"
  35 #include "ap.h"
  36 #include "p2p/p2p.h"
  37 #include "p2p_supplicant.h"
  38 #include "wps_supplicant.h"
  39
  40
  41 #ifndef WPS_PIN_SCAN_IGNORE_SEL_REG
  42 #define WPS_PIN_SCAN_IGNORE_SEL_REG 3
  43 #endif /* WPS_PIN_SCAN_IGNORE_SEL_REG */
  44
  45 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx);
  46 static void wpas_clear_wps(struct wpa_supplicant *wpa_s);
  47
  48
  49 int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s)
  50 {
  51         if (!wpa_s->wps_success &&
  52             wpa_s->current_ssid &&
  53             eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
  54                 const u8 *bssid = wpa_s->bssid;
  55                 if (is_zero_ether_addr(bssid))
  56                         bssid = wpa_s->pending_bssid;
  57
  58                 wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR
  59                            " did not succeed - continue trying to find "
  60                            "suitable AP", MAC2STR(bssid));
  61                 wpa_blacklist_add(wpa_s, bssid);
  62
  63                 wpa_supplicant_deauthenticate(wpa_s,
  64                                               WLAN_REASON_DEAUTH_LEAVING);
  65                 wpa_s->reassociate = 1;
  66                 wpa_supplicant_req_scan(wpa_s,
  67                                         wpa_s->blacklist_cleared ? 5 : 0, 0);
  68                 wpa_s->blacklist_cleared = 0;
  69                 return 1;
  70         }
  71
  72         eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
  73
  74         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid &&
  75             !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
  76                 int disabled = wpa_s->current_ssid->disabled;
  77                 wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - "
  78                            "try to associate with the received credential");
  79                 wpa_supplicant_deauthenticate(wpa_s,
  80                                               WLAN_REASON_DEAUTH_LEAVING);
  81                 if (disabled) {
  82                         wpa_printf(MSG_DEBUG, "WPS: Current network is "
  83                                    "disabled - wait for user to enable");
  84                         return 1;
  85                 }
  86                 wpa_s->after_wps = 5;
  87                 wpa_s->wps_freq = wpa_s->assoc_freq;
  88                 wpa_s->reassociate = 1;
  89                 wpa_supplicant_req_scan(wpa_s, 0, 0);
  90                 return 1;
  91         }
  92
  93         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) {
  94                 wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting "
  95                            "for external credential processing");
  96                 wpas_clear_wps(wpa_s);
  97                 wpa_supplicant_deauthenticate(wpa_s,
  98                                               WLAN_REASON_DEAUTH_LEAVING);
  99                 return 1;
 100         }
 101
 102         return 0;
 103 }
 104
 105
 106 static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s,
 107                                          struct wpa_ssid *ssid,
 108                                          const struct wps_credential *cred)
 109 {
 110         struct wpa_driver_capa capa;
 111         struct wpa_bss *bss;
 112         const u8 *ie;
 113         struct wpa_ie_data adv;
 114         int wpa2 = 0, ccmp = 0;
 115
 116         /*
 117          * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in
 118          * case they are configured for mixed mode operation (WPA+WPA2 and
 119          * TKIP+CCMP). Try to use scan results to figure out whether the AP
 120          * actually supports stronger security and select that if the client
 121          * has support for it, too.
 122          */
 123
 124         if (wpa_drv_get_capa(wpa_s, &capa))
 125                 return; /* Unknown what driver supports */
 126
 127         bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len);
 128         if (bss == NULL) {
 129                 wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS "
 130                            "table - use credential as-is");
 131                 return;
 132         }
 133
 134         wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table");
 135
 136         ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
 137         if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) {
 138                 wpa2 = 1;
 139                 if (adv.pairwise_cipher & WPA_CIPHER_CCMP)
 140                         ccmp = 1;
 141         } else {
 142                 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 143                 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 &&
 144                     adv.pairwise_cipher & WPA_CIPHER_CCMP)
 145                         ccmp = 1;
 146         }
 147
 148         if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) &&
 149             (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) {
 150                 /*
 151                  * TODO: This could be the initial AP configuration and the
 152                  * Beacon contents could change shortly. Should request a new
 153                  * scan and delay addition of the network until the updated
 154                  * scan results are available.
 155                  */
 156                 wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA "
 157                            "support - use credential as-is");
 158                 return;
 159         }
 160
 161         if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
 162             (ssid->pairwise_cipher & WPA_CIPHER_TKIP) &&
 163             (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
 164                 wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential "
 165                            "based on scan results");
 166                 if (wpa_s->conf->ap_scan == 1)
 167                         ssid->pairwise_cipher |= WPA_CIPHER_CCMP;
 168                 else
 169                         ssid->pairwise_cipher = WPA_CIPHER_CCMP;
 170         }
 171
 172         if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) &&
 173             (ssid->proto & WPA_PROTO_WPA) &&
 174             (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) {
 175                 wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential "
 176                            "based on scan results");
 177                 if (wpa_s->conf->ap_scan == 1)
 178                         ssid->proto |= WPA_PROTO_RSN;
 179                 else
 180                         ssid->proto = WPA_PROTO_RSN;
 181         }
 182 }
 183
 184
 185 static int wpa_supplicant_wps_cred(void *ctx,
 186                                    const struct wps_credential *cred)
 187 {
 188         struct wpa_supplicant *wpa_s = ctx;
 189         struct wpa_ssid *ssid = wpa_s->current_ssid;
 190         u8 key_idx = 0;
 191         u16 auth_type;
 192         int registrar = 0;
 193
 194         if ((wpa_s->conf->wps_cred_processing == 1 ||
 195              wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) {
 196                 size_t blen = cred->cred_attr_len * 2 + 1;
 197                 char *buf = os_malloc(blen);
 198                 if (buf) {
 199                         wpa_snprintf_hex(buf, blen,
 200                                          cred->cred_attr, cred->cred_attr_len);
 201                         wpa_msg(wpa_s, MSG_INFO, "%s%s",
 202                                 WPS_EVENT_CRED_RECEIVED, buf);
 203                         os_free(buf);
 204                 }
 205
 206                 wpas_notify_wps_credential(wpa_s, cred);
 207         } else
 208                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED);
 209
 210         wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
 211                         cred->cred_attr, cred->cred_attr_len);
 212
 213         if (wpa_s->conf->wps_cred_processing == 1)
 214                 return 0;
 215
 216         wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
 217         wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
 218                    cred->auth_type);
 219         wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
 220         wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
 221         wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
 222                         cred->key, cred->key_len);
 223         wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
 224                    MAC2STR(cred->mac_addr));
 225
 226         auth_type = cred->auth_type;
 227         if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
 228                 wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode "
 229                            "auth_type into WPA2PSK");
 230                 auth_type = WPS_AUTH_WPA2PSK;
 231         }
 232
 233         if (auth_type != WPS_AUTH_OPEN &&
 234             auth_type != WPS_AUTH_SHARED &&
 235             auth_type != WPS_AUTH_WPAPSK &&
 236             auth_type != WPS_AUTH_WPA2PSK) {
 237                 wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
 238                            "unsupported authentication type 0x%x",
 239                            auth_type);
 240                 return 0;
 241         }
 242
 243         if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
 244                 wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based "
 245                            "on the received credential");
 246                 if (ssid->eap.identity &&
 247                     ssid->eap.identity_len == WSC_ID_REGISTRAR_LEN &&
 248                     os_memcmp(ssid->eap.identity, WSC_ID_REGISTRAR,
 249                               WSC_ID_REGISTRAR_LEN) == 0)
 250                         registrar = 1;
 251                 os_free(ssid->eap.identity);
 252                 ssid->eap.identity = NULL;
 253                 ssid->eap.identity_len = 0;
 254                 os_free(ssid->eap.phase1);
 255                 ssid->eap.phase1 = NULL;
 256                 os_free(ssid->eap.eap_methods);
 257                 ssid->eap.eap_methods = NULL;
 258                 if (!ssid->p2p_group)
 259                         ssid->temporary = 0;
 260         } else {
 261                 wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the "
 262                            "received credential");
 263                 ssid = wpa_config_add_network(wpa_s->conf);
 264                 if (ssid == NULL)
 265                         return -1;
 266                 wpas_notify_network_added(wpa_s, ssid);
 267         }
 268
 269         wpa_config_set_network_defaults(ssid);
 270
 271         os_free(ssid->ssid);
 272         ssid->ssid = os_malloc(cred->ssid_len);
 273         if (ssid->ssid) {
 274                 os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len);
 275                 ssid->ssid_len = cred->ssid_len;
 276         }
 277
 278         switch (cred->encr_type) {
 279         case WPS_ENCR_NONE:
 280                 break;
 281         case WPS_ENCR_WEP:
 282                 if (cred->key_len <= 0)
 283                         break;
 284                 if (cred->key_len != 5 && cred->key_len != 13 &&
 285                     cred->key_len != 10 && cred->key_len != 26) {
 286                         wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key length "
 287                                    "%lu", (unsigned long) cred->key_len);
 288                         return -1;
 289                 }
 290                 if (cred->key_idx > NUM_WEP_KEYS) {
 291                         wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key index %d",
 292                                    cred->key_idx);
 293                         return -1;
 294                 }
 295                 if (cred->key_idx)
 296                         key_idx = cred->key_idx - 1;
 297                 if (cred->key_len == 10 || cred->key_len == 26) {
 298                         if (hexstr2bin((char *) cred->key,
 299                                        ssid->wep_key[key_idx],
 300                                        cred->key_len / 2) < 0) {
 301                                 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key "
 302                                            "%d", key_idx);
 303                                 return -1;
 304                         }
 305                         ssid->wep_key_len[key_idx] = cred->key_len / 2;
 306                 } else {
 307                         os_memcpy(ssid->wep_key[key_idx], cred->key,
 308                                   cred->key_len);
 309                         ssid->wep_key_len[key_idx] = cred->key_len;
 310                 }
 311                 ssid->wep_tx_keyidx = key_idx;
 312                 break;
 313         case WPS_ENCR_TKIP:
 314                 ssid->pairwise_cipher = WPA_CIPHER_TKIP;
 315                 break;
 316         case WPS_ENCR_AES:
 317                 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
 318                 break;
 319         }
 320
 321         switch (auth_type) {
 322         case WPS_AUTH_OPEN:
 323                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 324                 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
 325                 ssid->proto = 0;
 326 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
 327                 if (registrar) {
 328                         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK
 329                                 "id=%d - Credentials for an open "
 330                                 "network disabled by default - use "
 331                                 "'select_network %d' to enable",
 332                                 ssid->id, ssid->id);
 333                         ssid->disabled = 1;
 334                 }
 335 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
 336                 break;
 337         case WPS_AUTH_SHARED:
 338                 ssid->auth_alg = WPA_AUTH_ALG_SHARED;
 339                 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
 340                 ssid->proto = 0;
 341                 break;
 342         case WPS_AUTH_WPAPSK:
 343                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 344                 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
 345                 ssid->proto = WPA_PROTO_WPA;
 346                 break;
 347         case WPS_AUTH_WPA:
 348                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 349                 ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
 350                 ssid->proto = WPA_PROTO_WPA;
 351                 break;
 352         case WPS_AUTH_WPA2:
 353                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 354                 ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
 355                 ssid->proto = WPA_PROTO_RSN;
 356                 break;
 357         case WPS_AUTH_WPA2PSK:
 358                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 359                 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
 360                 ssid->proto = WPA_PROTO_RSN;
 361                 break;
 362         }
 363
 364         if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) {
 365                 if (cred->key_len == 2 * PMK_LEN) {
 366                         if (hexstr2bin((const char *) cred->key, ssid->psk,
 367                                        PMK_LEN)) {
 368                                 wpa_printf(MSG_ERROR, "WPS: Invalid Network "
 369                                            "Key");
 370                                 return -1;
 371                         }
 372                         ssid->psk_set = 1;
 373                 } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) {
 374                         os_free(ssid->passphrase);
 375                         ssid->passphrase = os_malloc(cred->key_len + 1);
 376                         if (ssid->passphrase == NULL)
 377                                 return -1;
 378                         os_memcpy(ssid->passphrase, cred->key, cred->key_len);
 379                         ssid->passphrase[cred->key_len] = '\0';
 380                         wpa_config_update_psk(ssid);
 381                 } else {
 382                         wpa_printf(MSG_ERROR, "WPS: Invalid Network Key "
 383                                    "length %lu",
 384                                    (unsigned long) cred->key_len);
 385                         return -1;
 386                 }
 387         }
 388
 389         wpas_wps_security_workaround(wpa_s, ssid, cred);
 390
 391 #ifndef CONFIG_NO_CONFIG_WRITE
 392         if (wpa_s->conf->update_config &&
 393             wpa_config_write(wpa_s->confname, wpa_s->conf)) {
 394                 wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration");
 395                 return -1;
 396         }
 397 #endif /* CONFIG_NO_CONFIG_WRITE */
 398
 399         return 0;
 400 }
 401
 402
 403 static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s,
 404                                          struct wps_event_m2d *m2d)
 405 {
 406         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D
 407                 "dev_password_id=%d config_error=%d",
 408                 m2d->dev_password_id, m2d->config_error);
 409         wpas_notify_wps_event_m2d(wpa_s, m2d);
 410 }
 411
 412
 413 static const char * wps_event_fail_reason[NUM_WPS_EI_VALUES] = {
 414         "No Error", /* WPS_EI_NO_ERROR */
 415         "TKIP Only Prohibited", /* WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED */
 416         "WEP Prohibited" /* WPS_EI_SECURITY_WEP_PROHIBITED */
 417 };
 418
 419 static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
 420                                           struct wps_event_fail *fail)
 421 {
 422         if (fail->error_indication > 0 &&
 423             fail->error_indication < NUM_WPS_EI_VALUES) {
 424                 wpa_msg(wpa_s, MSG_INFO,
 425                         WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
 426                         fail->msg, fail->config_error, fail->error_indication,
 427                         wps_event_fail_reason[fail->error_indication]);
 428                 if (wpa_s->parent && wpa_s->parent != wpa_s)
 429                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 430                                 "msg=%d config_error=%d reason=%d (%s)",
 431                                 fail->msg, fail->config_error,
 432                                 fail->error_indication,
 433                                 wps_event_fail_reason[fail->error_indication]);
 434         } else {
 435                 wpa_msg(wpa_s, MSG_INFO,
 436                         WPS_EVENT_FAIL "msg=%d config_error=%d",
 437                         fail->msg, fail->config_error);
 438                 if (wpa_s->parent && wpa_s->parent != wpa_s)
 439                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 440                                 "msg=%d config_error=%d",
 441                                 fail->msg, fail->config_error);
 442         }
 443         wpas_clear_wps(wpa_s);
 444         wpas_notify_wps_event_fail(wpa_s, fail);
 445 }
 446
 447
 448 static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s)
 449 {
 450         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS);
 451         wpa_s->wps_success = 1;
 452         wpas_notify_wps_event_success(wpa_s);
 453 #ifdef CONFIG_P2P
 454         wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0);
 455 #endif /* CONFIG_P2P */
 456 }
 457
 458
 459 static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s,
 460                                                struct wps_event_er_ap *ap)
 461 {
 462         char uuid_str[100];
 463         char dev_type[WPS_DEV_TYPE_BUFSIZE];
 464
 465         uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
 466         if (ap->pri_dev_type)
 467                 wps_dev_type_bin2str(ap->pri_dev_type, dev_type,
 468                                      sizeof(dev_type));
 469         else
 470                 dev_type[0] = '\0';
 471
 472         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR
 473                 " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|",
 474                 uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state,
 475                 ap->friendly_name ? ap->friendly_name : "",
 476                 ap->manufacturer ? ap->manufacturer : "",
 477                 ap->model_description ? ap->model_description : "",
 478                 ap->model_name ? ap->model_name : "",
 479                 ap->manufacturer_url ? ap->manufacturer_url : "",
 480                 ap->model_url ? ap->model_url : "");
 481 }
 482
 483
 484 static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s,
 485                                                   struct wps_event_er_ap *ap)
 486 {
 487         char uuid_str[100];
 488         uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
 489         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str);
 490 }
 491
 492
 493 static void wpa_supplicant_wps_event_er_enrollee_add(
 494         struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
 495 {
 496         char uuid_str[100];
 497         char dev_type[WPS_DEV_TYPE_BUFSIZE];
 498
 499         uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
 500         if (enrollee->pri_dev_type)
 501                 wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type,
 502                                      sizeof(dev_type));
 503         else
 504                 dev_type[0] = '\0';
 505
 506         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR
 507                 " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s "
 508                 "|%s|%s|%s|%s|%s|",
 509                 uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received,
 510                 enrollee->config_methods, enrollee->dev_passwd_id, dev_type,
 511                 enrollee->dev_name ? enrollee->dev_name : "",
 512                 enrollee->manufacturer ? enrollee->manufacturer : "",
 513                 enrollee->model_name ? enrollee->model_name : "",
 514                 enrollee->model_number ? enrollee->model_number : "",
 515                 enrollee->serial_number ? enrollee->serial_number : "");
 516 }
 517
 518
 519 static void wpa_supplicant_wps_event_er_enrollee_remove(
 520         struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
 521 {
 522         char uuid_str[100];
 523         uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
 524         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR,
 525                 uuid_str, MAC2STR(enrollee->mac_addr));
 526 }
 527
 528
 529 static void wpa_supplicant_wps_event_er_ap_settings(
 530         struct wpa_supplicant *wpa_s,
 531         struct wps_event_er_ap_settings *ap_settings)
 532 {
 533         char uuid_str[100];
 534         char key_str[65];
 535         const struct wps_credential *cred = ap_settings->cred;
 536
 537         key_str[0] = '\0';
 538         if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
 539                 if (cred->key_len >= 8 && cred->key_len <= 64) {
 540                         os_memcpy(key_str, cred->key, cred->key_len);
 541                         key_str[cred->key_len] = '\0';
 542                 }
 543         }
 544
 545         uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str));
 546         /* Use wpa_msg_ctrl to avoid showing the key in debug log */
 547         wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS
 548                      "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x "
 549                      "key=%s",
 550                      uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len),
 551                      cred->auth_type, cred->encr_type, key_str);
 552 }
 553
 554
 555 static void wpa_supplicant_wps_event_er_set_sel_reg(
 556         struct wpa_supplicant *wpa_s,
 557         struct wps_event_er_set_selected_registrar *ev)
 558 {
 559         char uuid_str[100];
 560
 561         uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str));
 562         switch (ev->state) {
 563         case WPS_ER_SET_SEL_REG_START:
 564                 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
 565                         "uuid=%s state=START sel_reg=%d dev_passwd_id=%u "
 566                         "sel_reg_config_methods=0x%x",
 567                         uuid_str, ev->sel_reg, ev->dev_passwd_id,
 568                         ev->sel_reg_config_methods);
 569                 break;
 570         case WPS_ER_SET_SEL_REG_DONE:
 571                 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
 572                         "uuid=%s state=DONE", uuid_str);
 573                 break;
 574         case WPS_ER_SET_SEL_REG_FAILED:
 575                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG
 576                         "uuid=%s state=FAILED", uuid_str);
 577                 break;
 578         }
 579 }
 580
 581
 582 static void wpa_supplicant_wps_event(void *ctx, enum wps_event event,
 583                                      union wps_event_data *data)
 584 {
 585         struct wpa_supplicant *wpa_s = ctx;
 586         switch (event) {
 587         case WPS_EV_M2D:
 588                 wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d);
 589                 break;
 590         case WPS_EV_FAIL:
 591                 wpa_supplicant_wps_event_fail(wpa_s, &data->fail);
 592                 break;
 593         case WPS_EV_SUCCESS:
 594                 wpa_supplicant_wps_event_success(wpa_s);
 595                 break;
 596         case WPS_EV_PWD_AUTH_FAIL:
 597 #ifdef CONFIG_AP
 598                 if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee)
 599                         wpa_supplicant_ap_pwd_auth_fail(wpa_s);
 600 #endif /* CONFIG_AP */
 601                 break;
 602         case WPS_EV_PBC_OVERLAP:
 603                 break;
 604         case WPS_EV_PBC_TIMEOUT:
 605                 break;
 606         case WPS_EV_ER_AP_ADD:
 607                 wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap);
 608                 break;
 609         case WPS_EV_ER_AP_REMOVE:
 610                 wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap);
 611                 break;
 612         case WPS_EV_ER_ENROLLEE_ADD:
 613                 wpa_supplicant_wps_event_er_enrollee_add(wpa_s,
 614                                                          &data->enrollee);
 615                 break;
 616         case WPS_EV_ER_ENROLLEE_REMOVE:
 617                 wpa_supplicant_wps_event_er_enrollee_remove(wpa_s,
 618                                                             &data->enrollee);
 619                 break;
 620         case WPS_EV_ER_AP_SETTINGS:
 621                 wpa_supplicant_wps_event_er_ap_settings(wpa_s,
 622                                                         &data->ap_settings);
 623                 break;
 624         case WPS_EV_ER_SET_SELECTED_REGISTRAR:
 625                 wpa_supplicant_wps_event_er_set_sel_reg(wpa_s,
 626                                                         &data->set_sel_reg);
 627                 break;
 628         }
 629 }
 630
 631
 632 enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid)
 633 {
 634         if (eap_is_wps_pbc_enrollee(&ssid->eap) ||
 635             eap_is_wps_pin_enrollee(&ssid->eap))
 636                 return WPS_REQ_ENROLLEE;
 637         else
 638                 return WPS_REQ_REGISTRAR;
 639 }
 640
 641
 642 static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
 643 {
 644         int id;
 645         struct wpa_ssid *ssid, *remove_ssid = NULL;
 646
 647         eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
 648
 649         /* Remove any existing WPS network from configuration */
 650         ssid = wpa_s->conf->ssid;
 651         while (ssid) {
 652                 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
 653                         if (ssid == wpa_s->current_ssid) {
 654                                 wpa_s->current_ssid = NULL;
 655                                 if (ssid != NULL)
 656                                         wpas_notify_network_changed(wpa_s);
 657                         }
 658                         id = ssid->id;
 659                         remove_ssid = ssid;
 660                 } else
 661                         id = -1;
 662                 ssid = ssid->next;
 663                 if (id >= 0) {
 664                         wpas_notify_network_removed(wpa_s, remove_ssid);
 665                         wpa_config_remove_network(wpa_s->conf, id);
 666                 }
 667         }
 668 }
 669
 670
 671 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
 672 {
 673         struct wpa_supplicant *wpa_s = eloop_ctx;
 674         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
 675                 "out");
 676         wpas_clear_wps(wpa_s);
 677 }
 678
 679
 680 static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
 681                                               int registrar, const u8 *bssid)
 682 {
 683         struct wpa_ssid *ssid;
 684
 685         ssid = wpa_config_add_network(wpa_s->conf);
 686         if (ssid == NULL)
 687                 return NULL;
 688         wpas_notify_network_added(wpa_s, ssid);
 689         wpa_config_set_network_defaults(ssid);
 690         ssid->temporary = 1;
 691         if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 ||
 692             wpa_config_set(ssid, "eap", "WSC", 0) < 0 ||
 693             wpa_config_set(ssid, "identity", registrar ?
 694                            "\"" WSC_ID_REGISTRAR "\"" :
 695                            "\"" WSC_ID_ENROLLEE "\"", 0) < 0) {
 696                 wpas_notify_network_removed(wpa_s, ssid);
 697                 wpa_config_remove_network(wpa_s->conf, ssid->id);
 698                 return NULL;
 699         }
 700
 701         if (bssid) {
 702 #ifndef CONFIG_P2P
 703                 struct wpa_bss *bss;
 704                 int count = 0;
 705 #endif /* CONFIG_P2P */
 706
 707                 os_memcpy(ssid->bssid, bssid, ETH_ALEN);
 708                 ssid->bssid_set = 1;
 709
 710                 /*
 711                  * Note: With P2P, the SSID may change at the time the WPS
 712                  * provisioning is started, so better not filter the AP based
 713                  * on the current SSID in the scan results.
 714                  */
 715 #ifndef CONFIG_P2P
 716                 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
 717                         if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0)
 718                                 continue;
 719
 720                         os_free(ssid->ssid);
 721                         ssid->ssid = os_malloc(bss->ssid_len);
 722                         if (ssid->ssid == NULL)
 723                                 break;
 724                         os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
 725                         ssid->ssid_len = bss->ssid_len;
 726                         wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from "
 727                                           "scan results",
 728                                           ssid->ssid, ssid->ssid_len);
 729                         count++;
 730                 }
 731
 732                 if (count > 1) {
 733                         wpa_printf(MSG_DEBUG, "WPS: More than one SSID found "
 734                                    "for the AP; use wildcard");
 735                         os_free(ssid->ssid);
 736                         ssid->ssid = NULL;
 737                         ssid->ssid_len = 0;
 738                 }
 739 #endif /* CONFIG_P2P */
 740         }
 741
 742         return ssid;
 743 }
 744
 745
 746 static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
 747                              struct wpa_ssid *selected)
 748 {
 749         struct wpa_ssid *ssid;
 750
 751         /* Mark all other networks disabled and trigger reassociation */
 752         ssid = wpa_s->conf->ssid;
 753         while (ssid) {
 754                 int was_disabled = ssid->disabled;
 755                 ssid->disabled = ssid != selected;
 756                 if (was_disabled != ssid->disabled)
 757                         wpas_notify_network_enabled_changed(wpa_s, ssid);
 758                 ssid = ssid->next;
 759         }
 760         wpa_s->disconnected = 0;
 761         wpa_s->reassociate = 1;
 762         wpa_s->scan_runs = 0;
 763         wpa_s->wps_success = 0;
 764         wpa_s->blacklist_cleared = 0;
 765         wpa_supplicant_req_scan(wpa_s, 0, 0);
 766 }
 767
 768
 769 int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 770                        int p2p_group)
 771 {
 772         struct wpa_ssid *ssid;
 773         wpas_clear_wps(wpa_s);
 774         ssid = wpas_wps_add_network(wpa_s, 0, bssid);
 775         if (ssid == NULL)
 776                 return -1;
 777         ssid->temporary = 1;
 778         ssid->p2p_group = p2p_group;
 779 #ifdef CONFIG_P2P
 780         if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
 781                 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
 782                 if (ssid->ssid) {
 783                         ssid->ssid_len = wpa_s->go_params->ssid_len;
 784                         os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
 785                                   ssid->ssid_len);
 786                         wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
 787                                           "SSID", ssid->ssid, ssid->ssid_len);
 788                 }
 789         }
 790 #endif /* CONFIG_P2P */
 791         wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0);
 792         if (wpa_s->wps_fragment_size)
 793                 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
 794         eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
 795                                wpa_s, NULL);
 796         wpas_wps_reassoc(wpa_s, ssid);
 797         return 0;
 798 }
 799
 800
 801 int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 802                        const char *pin, int p2p_group, u16 dev_pw_id)
 803 {
 804         struct wpa_ssid *ssid;
 805         char val[128];
 806         unsigned int rpin = 0;
 807
 808         wpas_clear_wps(wpa_s);
 809         ssid = wpas_wps_add_network(wpa_s, 0, bssid);
 810         if (ssid == NULL)
 811                 return -1;
 812         ssid->temporary = 1;
 813         ssid->p2p_group = p2p_group;
 814 #ifdef CONFIG_P2P
 815         if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
 816                 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
 817                 if (ssid->ssid) {
 818                         ssid->ssid_len = wpa_s->go_params->ssid_len;
 819                         os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
 820                                   ssid->ssid_len);
 821                         wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
 822                                           "SSID", ssid->ssid, ssid->ssid_len);
 823                 }
 824         }
 825 #endif /* CONFIG_P2P */
 826         if (pin)
 827                 os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u\"",
 828                             pin, dev_pw_id);
 829         else {
 830                 rpin = wps_generate_pin();
 831                 os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u\"",
 832                             rpin, dev_pw_id);
 833         }
 834         wpa_config_set(ssid, "phase1", val, 0);
 835         if (wpa_s->wps_fragment_size)
 836                 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
 837         eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
 838                                wpa_s, NULL);
 839         wpas_wps_reassoc(wpa_s, ssid);
 840         return rpin;
 841 }
 842
 843
 844 /* Cancel the wps pbc/pin requests */
 845 int wpas_wps_cancel(struct wpa_supplicant *wpa_s)
 846 {
 847 #ifdef CONFIG_AP
 848         if (wpa_s->ap_iface) {
 849                 wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode");
 850                 return wpa_supplicant_ap_wps_cancel(wpa_s);
 851         }
 852 #endif /* CONFIG_AP */
 853
 854         if (wpa_s->wpa_state == WPA_SCANNING) {
 855                 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan");
 856                 wpa_supplicant_cancel_scan(wpa_s);
 857                 wpas_clear_wps(wpa_s);
 858         } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
 859                 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - "
 860                            "deauthenticate");
 861                 wpa_supplicant_deauthenticate(wpa_s,
 862                                               WLAN_REASON_DEAUTH_LEAVING);
 863                 wpas_clear_wps(wpa_s);
 864         }
 865
 866         return 0;
 867 }
 868
 869
 870 #ifdef CONFIG_WPS_OOB
 871 int wpas_wps_start_oob(struct wpa_supplicant *wpa_s, char *device_type,
 872                        char *path, char *method, char *name)
 873 {
 874         struct wps_context *wps = wpa_s->wps;
 875         struct oob_device_data *oob_dev;
 876
 877         oob_dev = wps_get_oob_device(device_type);
 878         if (oob_dev == NULL)
 879                 return -1;
 880         oob_dev->device_path = path;
 881         oob_dev->device_name = name;
 882         wps->oob_conf.oob_method = wps_get_oob_method(method);
 883
 884         if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E) {
 885                 /*
 886                  * Use pre-configured DH keys in order to be able to write the
 887                  * key hash into the OOB file.
 888                  */
 889                 wpabuf_free(wps->dh_pubkey);
 890                 wpabuf_free(wps->dh_privkey);
 891                 wps->dh_privkey = NULL;
 892                 wps->dh_pubkey = NULL;
 893                 dh5_free(wps->dh_ctx);
 894                 wps->dh_ctx = dh5_init(&wps->dh_privkey, &wps->dh_pubkey);
 895                 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
 896                 if (wps->dh_ctx == NULL || wps->dh_pubkey == NULL) {
 897                         wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
 898                                    "Diffie-Hellman handshake");
 899                         return -1;
 900                 }
 901         }
 902
 903         if (wps->oob_conf.oob_method == OOB_METHOD_CRED)
 904                 wpas_clear_wps(wpa_s);
 905
 906         if (wps_process_oob(wps, oob_dev, 0) < 0)
 907                 return -1;
 908
 909         if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
 910              wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
 911             wpas_wps_start_pin(wpa_s, NULL,
 912                                wpabuf_head(wps->oob_conf.dev_password), 0,
 913                                DEV_PW_DEFAULT) < 0)
 914                         return -1;
 915
 916         return 0;
 917 }
 918 #endif /* CONFIG_WPS_OOB */
 919
 920
 921 int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
 922                        const char *pin, struct wps_new_ap_settings *settings)
 923 {
 924         struct wpa_ssid *ssid;
 925         char val[200];
 926         char *pos, *end;
 927         int res;
 928
 929         if (!pin)
 930                 return -1;
 931         wpas_clear_wps(wpa_s);
 932         ssid = wpas_wps_add_network(wpa_s, 1, bssid);
 933         if (ssid == NULL)
 934                 return -1;
 935         ssid->temporary = 1;
 936         pos = val;
 937         end = pos + sizeof(val);
 938         res = os_snprintf(pos, end - pos, "\"pin=%s", pin);
 939         if (res < 0 || res >= end - pos)
 940                 return -1;
 941         pos += res;
 942         if (settings) {
 943                 res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s "
 944                                   "new_encr=%s new_key=%s",
 945                                   settings->ssid_hex, settings->auth,
 946                                   settings->encr, settings->key_hex);
 947                 if (res < 0 || res >= end - pos)
 948                         return -1;
 949                 pos += res;
 950         }
 951         res = os_snprintf(pos, end - pos, "\"");
 952         if (res < 0 || res >= end - pos)
 953                 return -1;
 954         wpa_config_set(ssid, "phase1", val, 0);
 955         if (wpa_s->wps_fragment_size)
 956                 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
 957         eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
 958                                wpa_s, NULL);
 959         wpas_wps_reassoc(wpa_s, ssid);
 960         return 0;
 961 }
 962
 963
 964 static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
 965                                size_t psk_len)
 966 {
 967         wpa_printf(MSG_DEBUG, "WPS: Received new WPA/WPA2-PSK from WPS for "
 968                    "STA " MACSTR, MAC2STR(mac_addr));
 969         wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
 970
 971         /* TODO */
 972
 973         return 0;
 974 }
 975
 976
 977 static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
 978                                    const struct wps_device_data *dev)
 979 {
 980         char uuid[40], txt[400];
 981         int len;
 982         char devtype[WPS_DEV_TYPE_BUFSIZE];
 983         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 984                 return;
 985         wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid);
 986         len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR
 987                           " [%s|%s|%s|%s|%s|%s]",
 988                           uuid, MAC2STR(dev->mac_addr), dev->device_name,
 989                           dev->manufacturer, dev->model_name,
 990                           dev->model_number, dev->serial_number,
 991                           wps_dev_type_bin2str(dev->pri_dev_type, devtype,
 992                                                sizeof(devtype)));
 993         if (len > 0 && len < (int) sizeof(txt))
 994                 wpa_printf(MSG_INFO, "%s", txt);
 995 }
 996
 997
 998 static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id,
 999                                     u16 sel_reg_config_methods)
1000 {
1001 #ifdef CONFIG_WPS_ER
1002         struct wpa_supplicant *wpa_s = ctx;
1003
1004         if (wpa_s->wps_er == NULL)
1005                 return;
1006         wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d "
1007                    "dev_password_id=%u sel_reg_config_methods=0x%x",
1008                    sel_reg, dev_passwd_id, sel_reg_config_methods);
1009         wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id,
1010                            sel_reg_config_methods);
1011 #endif /* CONFIG_WPS_ER */
1012 }
1013
1014
1015 static u16 wps_fix_config_methods(u16 config_methods)
1016 {
1017 #ifdef CONFIG_WPS2
1018         if ((config_methods &
1019              (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
1020               WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
1021                 wpa_printf(MSG_INFO, "WPS: Converting display to "
1022                            "virtual_display for WPS 2.0 compliance");
1023                 config_methods |= WPS_CONFIG_VIRT_DISPLAY;
1024         }
1025         if ((config_methods &
1026              (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
1027               WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
1028                 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
1029                            "virtual_push_button for WPS 2.0 compliance");
1030                 config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
1031         }
1032 #endif /* CONFIG_WPS2 */
1033
1034         return config_methods;
1035 }
1036
1037
1038 int wpas_wps_init(struct wpa_supplicant *wpa_s)
1039 {
1040         struct wps_context *wps;
1041         struct wps_registrar_config rcfg;
1042
1043         wps = os_zalloc(sizeof(*wps));
1044         if (wps == NULL)
1045                 return -1;
1046
1047         wps->cred_cb = wpa_supplicant_wps_cred;
1048         wps->event_cb = wpa_supplicant_wps_event;
1049         wps->cb_ctx = wpa_s;
1050
1051         wps->dev.device_name = wpa_s->conf->device_name;
1052         wps->dev.manufacturer = wpa_s->conf->manufacturer;
1053         wps->dev.model_name = wpa_s->conf->model_name;
1054         wps->dev.model_number = wpa_s->conf->model_number;
1055         wps->dev.serial_number = wpa_s->conf->serial_number;
1056         wps->config_methods =
1057                 wps_config_methods_str2bin(wpa_s->conf->config_methods);
1058         if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1059             (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1060                 wpa_printf(MSG_ERROR, "WPS: Both Label and Display config "
1061                            "methods are not allowed at the same time");
1062                 os_free(wps);
1063                 return -1;
1064         }
1065         wps->config_methods = wps_fix_config_methods(wps->config_methods);
1066         if (wpa_s->conf->device_type &&
1067             wps_dev_type_str2bin(wpa_s->conf->device_type,
1068                                  wps->dev.pri_dev_type) < 0) {
1069                 wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
1070                 os_free(wps);
1071                 return -1;
1072         }
1073         wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1074         wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ; /* TODO: config */
1075         os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
1076         if (is_nil_uuid(wpa_s->conf->uuid)) {
1077                 uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
1078                 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC address",
1079                             wps->uuid, WPS_UUID_LEN);
1080         } else
1081                 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
1082
1083         wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
1084         wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
1085
1086         os_memset(&rcfg, 0, sizeof(rcfg));
1087         rcfg.new_psk_cb = wpas_wps_new_psk_cb;
1088         rcfg.pin_needed_cb = wpas_wps_pin_needed_cb;
1089         rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb;
1090         rcfg.cb_ctx = wpa_s;
1091
1092         wps->registrar = wps_registrar_init(wps, &rcfg);
1093         if (wps->registrar == NULL) {
1094                 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar");
1095                 os_free(wps);
1096                 return -1;
1097         }
1098
1099         wpa_s->wps = wps;
1100
1101         return 0;
1102 }
1103
1104
1105 void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
1106 {
1107         eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
1108
1109         if (wpa_s->wps == NULL)
1110                 return;
1111
1112 #ifdef CONFIG_WPS_ER
1113         wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1114         wpa_s->wps_er = NULL;
1115 #endif /* CONFIG_WPS_ER */
1116
1117         wps_registrar_deinit(wpa_s->wps->registrar);
1118         wpabuf_free(wpa_s->wps->dh_pubkey);
1119         wpabuf_free(wpa_s->wps->dh_privkey);
1120         wpabuf_free(wpa_s->wps->oob_conf.pubkey_hash);
1121         wpabuf_free(wpa_s->wps->oob_conf.dev_password);
1122         os_free(wpa_s->wps->network_key);
1123         os_free(wpa_s->wps);
1124         wpa_s->wps = NULL;
1125 }
1126
1127
1128 int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
1129                             struct wpa_ssid *ssid, struct wpa_scan_res *bss)
1130 {
1131         struct wpabuf *wps_ie;
1132
1133         if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
1134                 return -1;
1135
1136         wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1137         if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1138                 if (!wps_ie) {
1139                         wpa_printf(MSG_DEBUG, "   skip - non-WPS AP");
1140                         return 0;
1141                 }
1142
1143                 if (!wps_is_selected_pbc_registrar(wps_ie)) {
1144                         wpa_printf(MSG_DEBUG, "   skip - WPS AP "
1145                                    "without active PBC Registrar");
1146                         wpabuf_free(wps_ie);
1147                         return 0;
1148                 }
1149
1150                 /* TODO: overlap detection */
1151                 wpa_printf(MSG_DEBUG, "   selected based on WPS IE "
1152                            "(Active PBC)");
1153                 wpabuf_free(wps_ie);
1154                 return 1;
1155         }
1156
1157         if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1158                 if (!wps_ie) {
1159                         wpa_printf(MSG_DEBUG, "   skip - non-WPS AP");
1160                         return 0;
1161                 }
1162
1163                 /*
1164                  * Start with WPS APs that advertise our address as an
1165                  * authorized MAC (v2.0) or active PIN Registrar (v1.0) and
1166                  * allow any WPS AP after couple of scans since some APs do not
1167                  * set Selected Registrar attribute properly when using
1168                  * external Registrar.
1169                  */
1170                 if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) {
1171                         if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG) {
1172                                 wpa_printf(MSG_DEBUG, "   skip - WPS AP "
1173                                            "without active PIN Registrar");
1174                                 wpabuf_free(wps_ie);
1175                                 return 0;
1176                         }
1177                         wpa_printf(MSG_DEBUG, "   selected based on WPS IE");
1178                 } else {
1179                         wpa_printf(MSG_DEBUG, "   selected based on WPS IE "
1180                                    "(Authorized MAC or Active PIN)");
1181                 }
1182                 wpabuf_free(wps_ie);
1183                 return 1;
1184         }
1185
1186         if (wps_ie) {
1187                 wpa_printf(MSG_DEBUG, "   selected based on WPS IE");
1188                 wpabuf_free(wps_ie);
1189                 return 1;
1190         }
1191
1192         return -1;
1193 }
1194
1195
1196 int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
1197                               struct wpa_ssid *ssid,
1198                               struct wpa_scan_res *bss)
1199 {
1200         struct wpabuf *wps_ie = NULL;
1201         int ret = 0;
1202
1203         if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1204                 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1205                 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) {
1206                         /* allow wildcard SSID for WPS PBC */
1207                         ret = 1;
1208                 }
1209         } else if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1210                 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1211                 if (wps_ie &&
1212                     (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) ||
1213                      wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) {
1214                         /* allow wildcard SSID for WPS PIN */
1215                         ret = 1;
1216                 }
1217         }
1218
1219         if (!ret && ssid->bssid_set &&
1220             os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) {
1221                 /* allow wildcard SSID due to hardcoded BSSID match */
1222                 ret = 1;
1223         }
1224
1225 #ifdef CONFIG_WPS_STRICT
1226         if (wps_ie) {
1227                 if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len >
1228                                                    0, bss->bssid) < 0)
1229                         ret = 0;
1230                 if (bss->beacon_ie_len) {
1231                         struct wpabuf *bcn_wps;
1232                         bcn_wps = wpa_scan_get_vendor_ie_multi_beacon(
1233                                 bss, WPS_IE_VENDOR_TYPE);
1234                         if (bcn_wps == NULL) {
1235                                 wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE "
1236                                            "missing from AP Beacon");
1237                                 ret = 0;
1238                         } else {
1239                                 if (wps_validate_beacon(wps_ie) < 0)
1240                                         ret = 0;
1241                                 wpabuf_free(bcn_wps);
1242                         }
1243                 }
1244         }
1245 #endif /* CONFIG_WPS_STRICT */
1246
1247         wpabuf_free(wps_ie);
1248
1249         return ret;
1250 }
1251
1252
1253 int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
1254                               struct wpa_bss *selected, struct wpa_ssid *ssid)
1255 {
1256         const u8 *sel_uuid, *uuid;
1257         struct wpabuf *wps_ie;
1258         int ret = 0;
1259         struct wpa_bss *bss;
1260
1261         if (!eap_is_wps_pbc_enrollee(&ssid->eap))
1262                 return 0;
1263
1264         wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is "
1265                    "present in scan results; selected BSSID " MACSTR,
1266                    MAC2STR(selected->bssid));
1267
1268         /* Make sure that only one AP is in active PBC mode */
1269         wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE);
1270         if (wps_ie) {
1271                 sel_uuid = wps_get_uuid_e(wps_ie);
1272                 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS",
1273                             sel_uuid, UUID_LEN);
1274         } else {
1275                 wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include "
1276                            "WPS IE?!");
1277                 sel_uuid = NULL;
1278         }
1279
1280         dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1281                 struct wpabuf *ie;
1282                 if (bss == selected)
1283                         continue;
1284                 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1285                 if (!ie)
1286                         continue;
1287                 if (!wps_is_selected_pbc_registrar(ie)) {
1288                         wpabuf_free(ie);
1289                         continue;
1290                 }
1291                 wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: "
1292                            MACSTR, MAC2STR(bss->bssid));
1293                 uuid = wps_get_uuid_e(ie);
1294                 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS",
1295                             uuid, UUID_LEN);
1296                 if (sel_uuid == NULL || uuid == NULL ||
1297                     os_memcmp(sel_uuid, uuid, UUID_LEN) != 0) {
1298                         ret = 1; /* PBC overlap */
1299                         wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: "
1300                                 MACSTR " and " MACSTR,
1301                                 MAC2STR(selected->bssid),
1302                                 MAC2STR(bss->bssid));
1303                         wpabuf_free(ie);
1304                         break;
1305                 }
1306
1307                 /* TODO: verify that this is reasonable dual-band situation */
1308
1309                 wpabuf_free(ie);
1310         }
1311
1312         wpabuf_free(wps_ie);
1313
1314         return ret;
1315 }
1316
1317
1318 void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
1319 {
1320         struct wpa_bss *bss;
1321         unsigned int pbc = 0, auth = 0, pin = 0, wps = 0;
1322
1323         if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED)
1324                 return;
1325
1326         dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1327                 struct wpabuf *ie;
1328                 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1329                 if (!ie)
1330                         continue;
1331                 if (wps_is_selected_pbc_registrar(ie))
1332                         pbc++;
1333                 else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0))
1334                         auth++;
1335                 else if (wps_is_selected_pin_registrar(ie))
1336                         pin++;
1337                 else
1338                         wps++;
1339                 wpabuf_free(ie);
1340         }
1341
1342         if (pbc)
1343                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC);
1344         else if (auth)
1345                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH);
1346         else if (pin)
1347                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN);
1348         else if (wps)
1349                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE);
1350 }
1351
1352
1353 int wpas_wps_searching(struct wpa_supplicant *wpa_s)
1354 {
1355         struct wpa_ssid *ssid;
1356
1357         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1358                 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled)
1359                         return 1;
1360         }
1361
1362         return 0;
1363 }
1364
1365
1366 int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
1367                               char *end)
1368 {
1369         struct wpabuf *wps_ie;
1370         int ret;
1371
1372         wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA);
1373         if (wps_ie == NULL)
1374                 return 0;
1375
1376         ret = wps_attr_text(wps_ie, buf, end);
1377         wpabuf_free(wps_ie);
1378         return ret;
1379 }
1380
1381
1382 int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter)
1383 {
1384 #ifdef CONFIG_WPS_ER
1385         if (wpa_s->wps_er) {
1386                 wps_er_refresh(wpa_s->wps_er);
1387                 return 0;
1388         }
1389         wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter);
1390         if (wpa_s->wps_er == NULL)
1391                 return -1;
1392         return 0;
1393 #else /* CONFIG_WPS_ER */
1394         return 0;
1395 #endif /* CONFIG_WPS_ER */
1396 }
1397
1398
1399 int wpas_wps_er_stop(struct wpa_supplicant *wpa_s)
1400 {
1401 #ifdef CONFIG_WPS_ER
1402         wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1403         wpa_s->wps_er = NULL;
1404 #endif /* CONFIG_WPS_ER */
1405         return 0;
1406 }
1407
1408
1409 #ifdef CONFIG_WPS_ER
1410 int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr,
1411                         const char *uuid, const char *pin)
1412 {
1413         u8 u[UUID_LEN];
1414         int any = 0;
1415
1416         if (os_strcmp(uuid, "any") == 0)
1417                 any = 1;
1418         else if (uuid_str2bin(uuid, u))
1419                 return -1;
1420         return wps_registrar_add_pin(wpa_s->wps->registrar, addr,
1421                                      any ? NULL : u,
1422                                      (const u8 *) pin, os_strlen(pin), 300);
1423 }
1424
1425
1426 int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid)
1427 {
1428         u8 u[UUID_LEN];
1429
1430         if (uuid_str2bin(uuid, u))
1431                 return -1;
1432         return wps_er_pbc(wpa_s->wps_er, u);
1433 }
1434
1435
1436 int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid,
1437                       const char *pin)
1438 {
1439         u8 u[UUID_LEN];
1440
1441         if (uuid_str2bin(uuid, u))
1442                 return -1;
1443         return wps_er_learn(wpa_s->wps_er, u, (const u8 *) pin,
1444                             os_strlen(pin));
1445 }
1446
1447
1448 int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid,
1449                            int id)
1450 {
1451         u8 u[UUID_LEN];
1452         struct wpa_ssid *ssid;
1453         struct wps_credential cred;
1454
1455         if (uuid_str2bin(uuid, u))
1456                 return -1;
1457         ssid = wpa_config_get_network(wpa_s->conf, id);
1458         if (ssid == NULL || ssid->ssid == NULL)
1459                 return -1;
1460
1461         os_memset(&cred, 0, sizeof(cred));
1462         if (ssid->ssid_len > 32)
1463                 return -1;
1464         os_memcpy(cred.ssid, ssid->ssid, ssid->ssid_len);
1465         cred.ssid_len = ssid->ssid_len;
1466         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
1467                 cred.auth_type = (ssid->proto & WPA_PROTO_RSN) ?
1468                         WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK;
1469                 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
1470                         cred.encr_type = WPS_ENCR_AES;
1471                 else
1472                         cred.encr_type = WPS_ENCR_TKIP;
1473                 if (ssid->passphrase) {
1474                         cred.key_len = os_strlen(ssid->passphrase);
1475                         if (cred.key_len >= 64)
1476                                 return -1;
1477                         os_memcpy(cred.key, ssid->passphrase, cred.key_len);
1478                 } else if (ssid->psk_set) {
1479                         cred.key_len = 32;
1480                         os_memcpy(cred.key, ssid->psk, 32);
1481                 } else
1482                         return -1;
1483         } else {
1484                 cred.auth_type = WPS_AUTH_OPEN;
1485                 cred.encr_type = WPS_ENCR_NONE;
1486         }
1487         return wps_er_set_config(wpa_s->wps_er, u, &cred);
1488 }
1489
1490
1491 int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid,
1492                        const char *pin, struct wps_new_ap_settings *settings)
1493 {
1494         u8 u[UUID_LEN];
1495         struct wps_credential cred;
1496         size_t len;
1497
1498         if (uuid_str2bin(uuid, u))
1499                 return -1;
1500         if (settings->ssid_hex == NULL || settings->auth == NULL ||
1501             settings->encr == NULL || settings->key_hex == NULL)
1502                 return -1;
1503
1504         os_memset(&cred, 0, sizeof(cred));
1505         len = os_strlen(settings->ssid_hex);
1506         if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
1507             hexstr2bin(settings->ssid_hex, cred.ssid, len / 2))
1508                 return -1;
1509         cred.ssid_len = len / 2;
1510
1511         len = os_strlen(settings->key_hex);
1512         if ((len & 1) || len > 2 * sizeof(cred.key) ||
1513             hexstr2bin(settings->key_hex, cred.key, len / 2))
1514                 return -1;
1515         cred.key_len = len / 2;
1516
1517         if (os_strcmp(settings->auth, "OPEN") == 0)
1518                 cred.auth_type = WPS_AUTH_OPEN;
1519         else if (os_strcmp(settings->auth, "WPAPSK") == 0)
1520                 cred.auth_type = WPS_AUTH_WPAPSK;
1521         else if (os_strcmp(settings->auth, "WPA2PSK") == 0)
1522                 cred.auth_type = WPS_AUTH_WPA2PSK;
1523         else
1524                 return -1;
1525
1526         if (os_strcmp(settings->encr, "NONE") == 0)
1527                 cred.encr_type = WPS_ENCR_NONE;
1528         else if (os_strcmp(settings->encr, "WEP") == 0)
1529                 cred.encr_type = WPS_ENCR_WEP;
1530         else if (os_strcmp(settings->encr, "TKIP") == 0)
1531                 cred.encr_type = WPS_ENCR_TKIP;
1532         else if (os_strcmp(settings->encr, "CCMP") == 0)
1533                 cred.encr_type = WPS_ENCR_AES;
1534         else
1535                 return -1;
1536
1537         return wps_er_config(wpa_s->wps_er, u, (const u8 *) pin,
1538                              os_strlen(pin), &cred);
1539 }
1540
1541
1542 static void wpas_wps_terminate_cb(void *ctx)
1543 {
1544         wpa_printf(MSG_DEBUG, "WPS ER: Terminated");
1545         eloop_terminate();
1546 }
1547 #endif /* CONFIG_WPS_ER */
1548
1549
1550 int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s)
1551 {
1552 #ifdef CONFIG_WPS_ER
1553         if (wpa_s->wps_er) {
1554                 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s);
1555                 wpa_s->wps_er = NULL;
1556                 return 1;
1557         }
1558 #endif /* CONFIG_WPS_ER */
1559         return 0;
1560 }
1561
1562
1563 int wpas_wps_in_progress(struct wpa_supplicant *wpa_s)
1564 {
1565         struct wpa_ssid *ssid;
1566
1567         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1568                 if (!ssid->disabled && ssid->key_mgmt == WPA_KEY_MGMT_WPS)
1569                         return 1;
1570         }
1571
1572         return 0;
1573 }
1574
1575
1576 void wpas_wps_update_config(struct wpa_supplicant *wpa_s)
1577 {
1578         struct wps_context *wps = wpa_s->wps;
1579
1580         if (wps == NULL)
1581                 return;
1582
1583         if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) {
1584                 wps->config_methods = wps_config_methods_str2bin(
1585                         wpa_s->conf->config_methods);
1586                 if ((wps->config_methods &
1587                      (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1588                     (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1589                         wpa_printf(MSG_ERROR, "WPS: Both Label and Display "
1590                                    "config methods are not allowed at the "
1591                                    "same time");
1592                         wps->config_methods &= ~WPS_CONFIG_LABEL;
1593                 }
1594         }
1595         wps->config_methods = wps_fix_config_methods(wps->config_methods);
1596
1597         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE) {
1598                 if (wpa_s->conf->device_type &&
1599                     wps_dev_type_str2bin(wpa_s->conf->device_type,
1600                                          wps->dev.pri_dev_type) < 0)
1601                         wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
1602         }
1603
1604         if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION)
1605                 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1606
1607         if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID) {
1608                 if (is_nil_uuid(wpa_s->conf->uuid)) {
1609                         uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
1610                         wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
1611                                     "address", wps->uuid, WPS_UUID_LEN);
1612                 } else
1613                         os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
1614         }
1615
1616         if (wpa_s->conf->changed_parameters &
1617             (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) {
1618                 /* Update pointers to make sure they refer current values */
1619                 wps->dev.device_name = wpa_s->conf->device_name;
1620                 wps->dev.manufacturer = wpa_s->conf->manufacturer;
1621                 wps->dev.model_name = wpa_s->conf->model_name;
1622                 wps->dev.model_number = wpa_s->conf->model_number;
1623                 wps->dev.serial_number = wpa_s->conf->serial_number;
1624         }
1625 }