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 "eapol_supp/eapol_supp_sm.h"
  28 #include "rsn_supp/wpa.h"
  29 #include "config.h"
  30 #include "wpa_supplicant_i.h"
  31 #include "driver_i.h"
  32 #include "notify.h"
  33 #include "blacklist.h"
  34 #include "bss.h"
  35 #include "scan.h"
  36 #include "ap.h"
  37 #include "p2p/p2p.h"
  38 #include "p2p_supplicant.h"
  39 #include "wps_supplicant.h"
  40
  41
  42 #ifndef WPS_PIN_SCAN_IGNORE_SEL_REG
  43 #define WPS_PIN_SCAN_IGNORE_SEL_REG 3
  44 #endif /* WPS_PIN_SCAN_IGNORE_SEL_REG */
  45
  46 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx);
  47 static void wpas_clear_wps(struct wpa_supplicant *wpa_s);
  48
  49
  50 int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s)
  51 {
  52         if (!wpa_s->wps_success &&
  53             wpa_s->current_ssid &&
  54             eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
  55                 const u8 *bssid = wpa_s->bssid;
  56                 if (is_zero_ether_addr(bssid))
  57                         bssid = wpa_s->pending_bssid;
  58
  59                 wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR
  60                            " did not succeed - continue trying to find "
  61                            "suitable AP", MAC2STR(bssid));
  62                 wpa_blacklist_add(wpa_s, bssid);
  63
  64                 wpa_supplicant_deauthenticate(wpa_s,
  65                                               WLAN_REASON_DEAUTH_LEAVING);
  66                 wpa_s->reassociate = 1;
  67                 wpa_supplicant_req_scan(wpa_s,
  68                                         wpa_s->blacklist_cleared ? 5 : 0, 0);
  69                 wpa_s->blacklist_cleared = 0;
  70                 return 1;
  71         }
  72
  73         eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
  74         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && !wpa_s->wps_success)
  75                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL);
  76
  77         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid &&
  78             !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
  79                 int disabled = wpa_s->current_ssid->disabled;
  80                 wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - "
  81                            "try to associate with the received credential");
  82                 wpa_supplicant_deauthenticate(wpa_s,
  83                                               WLAN_REASON_DEAUTH_LEAVING);
  84                 if (disabled) {
  85                         wpa_printf(MSG_DEBUG, "WPS: Current network is "
  86                                    "disabled - wait for user to enable");
  87                         return 1;
  88                 }
  89                 wpa_s->after_wps = 5;
  90                 wpa_s->wps_freq = wpa_s->assoc_freq;
  91                 wpa_s->reassociate = 1;
  92                 wpa_supplicant_req_scan(wpa_s, 0, 0);
  93                 return 1;
  94         }
  95
  96         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) {
  97                 wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting "
  98                            "for external credential processing");
  99                 wpas_clear_wps(wpa_s);
 100                 wpa_supplicant_deauthenticate(wpa_s,
 101                                               WLAN_REASON_DEAUTH_LEAVING);
 102                 return 1;
 103         }
 104
 105         return 0;
 106 }
 107
 108
 109 static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s,
 110                                          struct wpa_ssid *ssid,
 111                                          const struct wps_credential *cred)
 112 {
 113         struct wpa_driver_capa capa;
 114         struct wpa_bss *bss;
 115         const u8 *ie;
 116         struct wpa_ie_data adv;
 117         int wpa2 = 0, ccmp = 0;
 118
 119         /*
 120          * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in
 121          * case they are configured for mixed mode operation (WPA+WPA2 and
 122          * TKIP+CCMP). Try to use scan results to figure out whether the AP
 123          * actually supports stronger security and select that if the client
 124          * has support for it, too.
 125          */
 126
 127         if (wpa_drv_get_capa(wpa_s, &capa))
 128                 return; /* Unknown what driver supports */
 129
 130         bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len);
 131         if (bss == NULL) {
 132                 wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS "
 133                            "table - use credential as-is");
 134                 return;
 135         }
 136
 137         wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table");
 138
 139         ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
 140         if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) {
 141                 wpa2 = 1;
 142                 if (adv.pairwise_cipher & WPA_CIPHER_CCMP)
 143                         ccmp = 1;
 144         } else {
 145                 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 146                 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 &&
 147                     adv.pairwise_cipher & WPA_CIPHER_CCMP)
 148                         ccmp = 1;
 149         }
 150
 151         if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) &&
 152             (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) {
 153                 /*
 154                  * TODO: This could be the initial AP configuration and the
 155                  * Beacon contents could change shortly. Should request a new
 156                  * scan and delay addition of the network until the updated
 157                  * scan results are available.
 158                  */
 159                 wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA "
 160                            "support - use credential as-is");
 161                 return;
 162         }
 163
 164         if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
 165             (ssid->pairwise_cipher & WPA_CIPHER_TKIP) &&
 166             (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
 167                 wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential "
 168                            "based on scan results");
 169                 if (wpa_s->conf->ap_scan == 1)
 170                         ssid->pairwise_cipher |= WPA_CIPHER_CCMP;
 171                 else
 172                         ssid->pairwise_cipher = WPA_CIPHER_CCMP;
 173         }
 174
 175         if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) &&
 176             (ssid->proto & WPA_PROTO_WPA) &&
 177             (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) {
 178                 wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential "
 179                            "based on scan results");
 180                 if (wpa_s->conf->ap_scan == 1)
 181                         ssid->proto |= WPA_PROTO_RSN;
 182                 else
 183                         ssid->proto = WPA_PROTO_RSN;
 184         }
 185 }
 186
 187
 188 static int wpa_supplicant_wps_cred(void *ctx,
 189                                    const struct wps_credential *cred)
 190 {
 191         struct wpa_supplicant *wpa_s = ctx;
 192         struct wpa_ssid *ssid = wpa_s->current_ssid;
 193         u8 key_idx = 0;
 194         u16 auth_type;
 195         int registrar = 0;
 196
 197         if ((wpa_s->conf->wps_cred_processing == 1 ||
 198              wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) {
 199                 size_t blen = cred->cred_attr_len * 2 + 1;
 200                 char *buf = os_malloc(blen);
 201                 if (buf) {
 202                         wpa_snprintf_hex(buf, blen,
 203                                          cred->cred_attr, cred->cred_attr_len);
 204                         wpa_msg(wpa_s, MSG_INFO, "%s%s",
 205                                 WPS_EVENT_CRED_RECEIVED, buf);
 206                         os_free(buf);
 207                 }
 208
 209                 wpas_notify_wps_credential(wpa_s, cred);
 210         } else
 211                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED);
 212
 213         wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
 214                         cred->cred_attr, cred->cred_attr_len);
 215
 216         if (wpa_s->conf->wps_cred_processing == 1)
 217                 return 0;
 218
 219         wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
 220         wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
 221                    cred->auth_type);
 222         wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
 223         wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
 224         wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
 225                         cred->key, cred->key_len);
 226         wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
 227                    MAC2STR(cred->mac_addr));
 228
 229         auth_type = cred->auth_type;
 230         if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
 231                 wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode "
 232                            "auth_type into WPA2PSK");
 233                 auth_type = WPS_AUTH_WPA2PSK;
 234         }
 235
 236         if (auth_type != WPS_AUTH_OPEN &&
 237             auth_type != WPS_AUTH_SHARED &&
 238             auth_type != WPS_AUTH_WPAPSK &&
 239             auth_type != WPS_AUTH_WPA2PSK) {
 240                 wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
 241                            "unsupported authentication type 0x%x",
 242                            auth_type);
 243                 return 0;
 244         }
 245
 246         if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
 247                 wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based "
 248                            "on the received credential");
 249                 if (ssid->eap.identity &&
 250                     ssid->eap.identity_len == WSC_ID_REGISTRAR_LEN &&
 251                     os_memcmp(ssid->eap.identity, WSC_ID_REGISTRAR,
 252                               WSC_ID_REGISTRAR_LEN) == 0)
 253                         registrar = 1;
 254                 os_free(ssid->eap.identity);
 255                 ssid->eap.identity = NULL;
 256                 ssid->eap.identity_len = 0;
 257                 os_free(ssid->eap.phase1);
 258                 ssid->eap.phase1 = NULL;
 259                 os_free(ssid->eap.eap_methods);
 260                 ssid->eap.eap_methods = NULL;
 261                 if (!ssid->p2p_group)
 262                         ssid->temporary = 0;
 263         } else {
 264                 wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the "
 265                            "received credential");
 266                 ssid = wpa_config_add_network(wpa_s->conf);
 267                 if (ssid == NULL)
 268                         return -1;
 269                 wpas_notify_network_added(wpa_s, ssid);
 270         }
 271
 272         wpa_config_set_network_defaults(ssid);
 273
 274         os_free(ssid->ssid);
 275         ssid->ssid = os_malloc(cred->ssid_len);
 276         if (ssid->ssid) {
 277                 os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len);
 278                 ssid->ssid_len = cred->ssid_len;
 279         }
 280
 281         switch (cred->encr_type) {
 282         case WPS_ENCR_NONE:
 283                 break;
 284         case WPS_ENCR_WEP:
 285                 if (cred->key_len <= 0)
 286                         break;
 287                 if (cred->key_len != 5 && cred->key_len != 13 &&
 288                     cred->key_len != 10 && cred->key_len != 26) {
 289                         wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key length "
 290                                    "%lu", (unsigned long) cred->key_len);
 291                         return -1;
 292                 }
 293                 if (cred->key_idx > NUM_WEP_KEYS) {
 294                         wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key index %d",
 295                                    cred->key_idx);
 296                         return -1;
 297                 }
 298                 if (cred->key_idx)
 299                         key_idx = cred->key_idx - 1;
 300                 if (cred->key_len == 10 || cred->key_len == 26) {
 301                         if (hexstr2bin((char *) cred->key,
 302                                        ssid->wep_key[key_idx],
 303                                        cred->key_len / 2) < 0) {
 304                                 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key "
 305                                            "%d", key_idx);
 306                                 return -1;
 307                         }
 308                         ssid->wep_key_len[key_idx] = cred->key_len / 2;
 309                 } else {
 310                         os_memcpy(ssid->wep_key[key_idx], cred->key,
 311                                   cred->key_len);
 312                         ssid->wep_key_len[key_idx] = cred->key_len;
 313                 }
 314                 ssid->wep_tx_keyidx = key_idx;
 315                 break;
 316         case WPS_ENCR_TKIP:
 317                 ssid->pairwise_cipher = WPA_CIPHER_TKIP;
 318                 break;
 319         case WPS_ENCR_AES:
 320                 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
 321                 break;
 322         }
 323
 324         switch (auth_type) {
 325         case WPS_AUTH_OPEN:
 326                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 327                 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
 328                 ssid->proto = 0;
 329 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
 330                 if (registrar) {
 331                         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK
 332                                 "id=%d - Credentials for an open "
 333                                 "network disabled by default - use "
 334                                 "'select_network %d' to enable",
 335                                 ssid->id, ssid->id);
 336                         ssid->disabled = 1;
 337                 }
 338 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
 339                 break;
 340         case WPS_AUTH_SHARED:
 341                 ssid->auth_alg = WPA_AUTH_ALG_SHARED;
 342                 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
 343                 ssid->proto = 0;
 344                 break;
 345         case WPS_AUTH_WPAPSK:
 346                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 347                 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
 348                 ssid->proto = WPA_PROTO_WPA;
 349                 break;
 350         case WPS_AUTH_WPA:
 351                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 352                 ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
 353                 ssid->proto = WPA_PROTO_WPA;
 354                 break;
 355         case WPS_AUTH_WPA2:
 356                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 357                 ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
 358                 ssid->proto = WPA_PROTO_RSN;
 359                 break;
 360         case WPS_AUTH_WPA2PSK:
 361                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 362                 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
 363                 ssid->proto = WPA_PROTO_RSN;
 364                 break;
 365         }
 366
 367         if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) {
 368                 if (cred->key_len == 2 * PMK_LEN) {
 369                         if (hexstr2bin((const char *) cred->key, ssid->psk,
 370                                        PMK_LEN)) {
 371                                 wpa_printf(MSG_ERROR, "WPS: Invalid Network "
 372                                            "Key");
 373                                 return -1;
 374                         }
 375                         ssid->psk_set = 1;
 376                         ssid->export_keys = 1;
 377                 } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) {
 378                         os_free(ssid->passphrase);
 379                         ssid->passphrase = os_malloc(cred->key_len + 1);
 380                         if (ssid->passphrase == NULL)
 381                                 return -1;
 382                         os_memcpy(ssid->passphrase, cred->key, cred->key_len);
 383                         ssid->passphrase[cred->key_len] = '\0';
 384                         wpa_config_update_psk(ssid);
 385                         ssid->export_keys = 1;
 386                 } else {
 387                         wpa_printf(MSG_ERROR, "WPS: Invalid Network Key "
 388                                    "length %lu",
 389                                    (unsigned long) cred->key_len);
 390                         return -1;
 391                 }
 392         }
 393
 394         wpas_wps_security_workaround(wpa_s, ssid, cred);
 395
 396 #ifndef CONFIG_NO_CONFIG_WRITE
 397         if (wpa_s->conf->update_config &&
 398             wpa_config_write(wpa_s->confname, wpa_s->conf)) {
 399                 wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration");
 400                 return -1;
 401         }
 402 #endif /* CONFIG_NO_CONFIG_WRITE */
 403
 404         return 0;
 405 }
 406
 407
 408 #ifdef CONFIG_P2P
 409 static void wpas_wps_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
 410 {
 411         struct wpa_supplicant *wpa_s = eloop_ctx;
 412         wpas_p2p_notif_pbc_overlap(wpa_s);
 413 }
 414 #endif /* CONFIG_P2P */
 415
 416
 417 static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s,
 418                                          struct wps_event_m2d *m2d)
 419 {
 420         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D
 421                 "dev_password_id=%d config_error=%d",
 422                 m2d->dev_password_id, m2d->config_error);
 423         wpas_notify_wps_event_m2d(wpa_s, m2d);
 424 #ifdef CONFIG_P2P
 425         if (wpa_s->parent && wpa_s->parent != wpa_s) {
 426                 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_M2D
 427                         "dev_password_id=%d config_error=%d",
 428                         m2d->dev_password_id, m2d->config_error);
 429         }
 430         if (m2d->config_error == WPS_CFG_MULTIPLE_PBC_DETECTED) {
 431                 /*
 432                  * Notify P2P from eloop timeout to avoid issues with the
 433                  * interface getting removed while processing a message.
 434                  */
 435                 eloop_register_timeout(0, 0, wpas_wps_pbc_overlap_cb, wpa_s,
 436                                        NULL);
 437         }
 438 #endif /* CONFIG_P2P */
 439 }
 440
 441
 442 static const char * wps_event_fail_reason[NUM_WPS_EI_VALUES] = {
 443         "No Error", /* WPS_EI_NO_ERROR */
 444         "TKIP Only Prohibited", /* WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED */
 445         "WEP Prohibited" /* WPS_EI_SECURITY_WEP_PROHIBITED */
 446 };
 447
 448 static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
 449                                           struct wps_event_fail *fail)
 450 {
 451         if (fail->error_indication > 0 &&
 452             fail->error_indication < NUM_WPS_EI_VALUES) {
 453                 wpa_msg(wpa_s, MSG_INFO,
 454                         WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
 455                         fail->msg, fail->config_error, fail->error_indication,
 456                         wps_event_fail_reason[fail->error_indication]);
 457                 if (wpa_s->parent && wpa_s->parent != wpa_s)
 458                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 459                                 "msg=%d config_error=%d reason=%d (%s)",
 460                                 fail->msg, fail->config_error,
 461                                 fail->error_indication,
 462                                 wps_event_fail_reason[fail->error_indication]);
 463         } else {
 464                 wpa_msg(wpa_s, MSG_INFO,
 465                         WPS_EVENT_FAIL "msg=%d config_error=%d",
 466                         fail->msg, fail->config_error);
 467                 if (wpa_s->parent && wpa_s->parent != wpa_s)
 468                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 469                                 "msg=%d config_error=%d",
 470                                 fail->msg, fail->config_error);
 471         }
 472         wpas_clear_wps(wpa_s);
 473         wpas_notify_wps_event_fail(wpa_s, fail);
 474 #ifdef CONFIG_P2P
 475         wpas_p2p_wps_failed(wpa_s, fail);
 476 #endif /* CONFIG_P2P */
 477 }
 478
 479
 480 static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s)
 481 {
 482         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS);
 483         wpa_s->wps_success = 1;
 484         wpas_notify_wps_event_success(wpa_s);
 485 #ifdef CONFIG_P2P
 486         wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0);
 487 #endif /* CONFIG_P2P */
 488 }
 489
 490
 491 static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s,
 492                                                struct wps_event_er_ap *ap)
 493 {
 494         char uuid_str[100];
 495         char dev_type[WPS_DEV_TYPE_BUFSIZE];
 496
 497         uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
 498         if (ap->pri_dev_type)
 499                 wps_dev_type_bin2str(ap->pri_dev_type, dev_type,
 500                                      sizeof(dev_type));
 501         else
 502                 dev_type[0] = '\0';
 503
 504         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR
 505                 " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|",
 506                 uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state,
 507                 ap->friendly_name ? ap->friendly_name : "",
 508                 ap->manufacturer ? ap->manufacturer : "",
 509                 ap->model_description ? ap->model_description : "",
 510                 ap->model_name ? ap->model_name : "",
 511                 ap->manufacturer_url ? ap->manufacturer_url : "",
 512                 ap->model_url ? ap->model_url : "");
 513 }
 514
 515
 516 static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s,
 517                                                   struct wps_event_er_ap *ap)
 518 {
 519         char uuid_str[100];
 520         uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
 521         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str);
 522 }
 523
 524
 525 static void wpa_supplicant_wps_event_er_enrollee_add(
 526         struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
 527 {
 528         char uuid_str[100];
 529         char dev_type[WPS_DEV_TYPE_BUFSIZE];
 530
 531         uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
 532         if (enrollee->pri_dev_type)
 533                 wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type,
 534                                      sizeof(dev_type));
 535         else
 536                 dev_type[0] = '\0';
 537
 538         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR
 539                 " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s "
 540                 "|%s|%s|%s|%s|%s|",
 541                 uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received,
 542                 enrollee->config_methods, enrollee->dev_passwd_id, dev_type,
 543                 enrollee->dev_name ? enrollee->dev_name : "",
 544                 enrollee->manufacturer ? enrollee->manufacturer : "",
 545                 enrollee->model_name ? enrollee->model_name : "",
 546                 enrollee->model_number ? enrollee->model_number : "",
 547                 enrollee->serial_number ? enrollee->serial_number : "");
 548 }
 549
 550
 551 static void wpa_supplicant_wps_event_er_enrollee_remove(
 552         struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
 553 {
 554         char uuid_str[100];
 555         uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
 556         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR,
 557                 uuid_str, MAC2STR(enrollee->mac_addr));
 558 }
 559
 560
 561 static void wpa_supplicant_wps_event_er_ap_settings(
 562         struct wpa_supplicant *wpa_s,
 563         struct wps_event_er_ap_settings *ap_settings)
 564 {
 565         char uuid_str[100];
 566         char key_str[65];
 567         const struct wps_credential *cred = ap_settings->cred;
 568
 569         key_str[0] = '\0';
 570         if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
 571                 if (cred->key_len >= 8 && cred->key_len <= 64) {
 572                         os_memcpy(key_str, cred->key, cred->key_len);
 573                         key_str[cred->key_len] = '\0';
 574                 }
 575         }
 576
 577         uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str));
 578         /* Use wpa_msg_ctrl to avoid showing the key in debug log */
 579         wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS
 580                      "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x "
 581                      "key=%s",
 582                      uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len),
 583                      cred->auth_type, cred->encr_type, key_str);
 584 }
 585
 586
 587 static void wpa_supplicant_wps_event_er_set_sel_reg(
 588         struct wpa_supplicant *wpa_s,
 589         struct wps_event_er_set_selected_registrar *ev)
 590 {
 591         char uuid_str[100];
 592
 593         uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str));
 594         switch (ev->state) {
 595         case WPS_ER_SET_SEL_REG_START:
 596                 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
 597                         "uuid=%s state=START sel_reg=%d dev_passwd_id=%u "
 598                         "sel_reg_config_methods=0x%x",
 599                         uuid_str, ev->sel_reg, ev->dev_passwd_id,
 600                         ev->sel_reg_config_methods);
 601                 break;
 602         case WPS_ER_SET_SEL_REG_DONE:
 603                 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
 604                         "uuid=%s state=DONE", uuid_str);
 605                 break;
 606         case WPS_ER_SET_SEL_REG_FAILED:
 607                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG
 608                         "uuid=%s state=FAILED", uuid_str);
 609                 break;
 610         }
 611 }
 612
 613
 614 static void wpa_supplicant_wps_event(void *ctx, enum wps_event event,
 615                                      union wps_event_data *data)
 616 {
 617         struct wpa_supplicant *wpa_s = ctx;
 618         switch (event) {
 619         case WPS_EV_M2D:
 620                 wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d);
 621                 break;
 622         case WPS_EV_FAIL:
 623                 wpa_supplicant_wps_event_fail(wpa_s, &data->fail);
 624                 break;
 625         case WPS_EV_SUCCESS:
 626                 wpa_supplicant_wps_event_success(wpa_s);
 627                 break;
 628         case WPS_EV_PWD_AUTH_FAIL:
 629 #ifdef CONFIG_AP
 630                 if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee)
 631                         wpa_supplicant_ap_pwd_auth_fail(wpa_s);
 632 #endif /* CONFIG_AP */
 633                 break;
 634         case WPS_EV_PBC_OVERLAP:
 635                 break;
 636         case WPS_EV_PBC_TIMEOUT:
 637                 break;
 638         case WPS_EV_ER_AP_ADD:
 639                 wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap);
 640                 break;
 641         case WPS_EV_ER_AP_REMOVE:
 642                 wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap);
 643                 break;
 644         case WPS_EV_ER_ENROLLEE_ADD:
 645                 wpa_supplicant_wps_event_er_enrollee_add(wpa_s,
 646                                                          &data->enrollee);
 647                 break;
 648         case WPS_EV_ER_ENROLLEE_REMOVE:
 649                 wpa_supplicant_wps_event_er_enrollee_remove(wpa_s,
 650                                                             &data->enrollee);
 651                 break;
 652         case WPS_EV_ER_AP_SETTINGS:
 653                 wpa_supplicant_wps_event_er_ap_settings(wpa_s,
 654                                                         &data->ap_settings);
 655                 break;
 656         case WPS_EV_ER_SET_SELECTED_REGISTRAR:
 657                 wpa_supplicant_wps_event_er_set_sel_reg(wpa_s,
 658                                                         &data->set_sel_reg);
 659                 break;
 660         }
 661 }
 662
 663
 664 enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid)
 665 {
 666         if (eap_is_wps_pbc_enrollee(&ssid->eap) ||
 667             eap_is_wps_pin_enrollee(&ssid->eap))
 668                 return WPS_REQ_ENROLLEE;
 669         else
 670                 return WPS_REQ_REGISTRAR;
 671 }
 672
 673
 674 static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
 675 {
 676         int id;
 677         struct wpa_ssid *ssid, *remove_ssid = NULL, *prev_current;
 678
 679         prev_current = wpa_s->current_ssid;
 680
 681         eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
 682
 683         /* Remove any existing WPS network from configuration */
 684         ssid = wpa_s->conf->ssid;
 685         while (ssid) {
 686                 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
 687                         if (ssid == wpa_s->current_ssid) {
 688                                 wpa_s->current_ssid = NULL;
 689                                 if (ssid != NULL)
 690                                         wpas_notify_network_changed(wpa_s);
 691                         }
 692                         id = ssid->id;
 693                         remove_ssid = ssid;
 694                 } else
 695                         id = -1;
 696                 ssid = ssid->next;
 697                 if (id >= 0) {
 698                         if (prev_current == remove_ssid) {
 699                                 wpa_sm_set_config(wpa_s->wpa, NULL);
 700                                 eapol_sm_notify_config(wpa_s->eapol, NULL,
 701                                                        NULL);
 702                         }
 703                         wpas_notify_network_removed(wpa_s, remove_ssid);
 704                         wpa_config_remove_network(wpa_s->conf, id);
 705                 }
 706         }
 707 }
 708
 709
 710 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
 711 {
 712         struct wpa_supplicant *wpa_s = eloop_ctx;
 713         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
 714                 "out");
 715         wpas_clear_wps(wpa_s);
 716 }
 717
 718
 719 static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
 720                                               int registrar, const u8 *bssid)
 721 {
 722         struct wpa_ssid *ssid;
 723
 724         ssid = wpa_config_add_network(wpa_s->conf);
 725         if (ssid == NULL)
 726                 return NULL;
 727         wpas_notify_network_added(wpa_s, ssid);
 728         wpa_config_set_network_defaults(ssid);
 729         ssid->temporary = 1;
 730         if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 ||
 731             wpa_config_set(ssid, "eap", "WSC", 0) < 0 ||
 732             wpa_config_set(ssid, "identity", registrar ?
 733                            "\"" WSC_ID_REGISTRAR "\"" :
 734                            "\"" WSC_ID_ENROLLEE "\"", 0) < 0) {
 735                 wpas_notify_network_removed(wpa_s, ssid);
 736                 wpa_config_remove_network(wpa_s->conf, ssid->id);
 737                 return NULL;
 738         }
 739
 740         if (bssid) {
 741 #ifndef CONFIG_P2P
 742                 struct wpa_bss *bss;
 743                 int count = 0;
 744 #endif /* CONFIG_P2P */
 745
 746                 os_memcpy(ssid->bssid, bssid, ETH_ALEN);
 747                 ssid->bssid_set = 1;
 748
 749                 /*
 750                  * Note: With P2P, the SSID may change at the time the WPS
 751                  * provisioning is started, so better not filter the AP based
 752                  * on the current SSID in the scan results.
 753                  */
 754 #ifndef CONFIG_P2P
 755                 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
 756                         if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0)
 757                                 continue;
 758
 759                         os_free(ssid->ssid);
 760                         ssid->ssid = os_malloc(bss->ssid_len);
 761                         if (ssid->ssid == NULL)
 762                                 break;
 763                         os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
 764                         ssid->ssid_len = bss->ssid_len;
 765                         wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from "
 766                                           "scan results",
 767                                           ssid->ssid, ssid->ssid_len);
 768                         count++;
 769                 }
 770
 771                 if (count > 1) {
 772                         wpa_printf(MSG_DEBUG, "WPS: More than one SSID found "
 773                                    "for the AP; use wildcard");
 774                         os_free(ssid->ssid);
 775                         ssid->ssid = NULL;
 776                         ssid->ssid_len = 0;
 777                 }
 778 #endif /* CONFIG_P2P */
 779         }
 780
 781         return ssid;
 782 }
 783
 784
 785 static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
 786                              struct wpa_ssid *selected)
 787 {
 788         struct wpa_ssid *ssid;
 789
 790         /* Mark all other networks disabled and trigger reassociation */
 791         ssid = wpa_s->conf->ssid;
 792         while (ssid) {
 793                 int was_disabled = ssid->disabled;
 794                 /*
 795                  * In case the network object corresponds to a persistent group
 796                  * then do not send out network disabled signal. In addition,
 797                  * do not change disabled status of persistent network objects
 798                  * from 2 to 1 should we connect to another network.
 799                  */
 800                 if (was_disabled != 2) {
 801                         ssid->disabled = ssid != selected;
 802                         if (was_disabled != ssid->disabled)
 803                                 wpas_notify_network_enabled_changed(wpa_s,
 804                                                                     ssid);
 805                 }
 806                 ssid = ssid->next;
 807         }
 808         wpa_s->disconnected = 0;
 809         wpa_s->reassociate = 1;
 810         wpa_s->scan_runs = 0;
 811         wpa_s->wps_success = 0;
 812         wpa_s->blacklist_cleared = 0;
 813         wpa_supplicant_req_scan(wpa_s, 0, 0);
 814 }
 815
 816
 817 int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 818                        int p2p_group)
 819 {
 820         struct wpa_ssid *ssid;
 821         wpas_clear_wps(wpa_s);
 822         ssid = wpas_wps_add_network(wpa_s, 0, bssid);
 823         if (ssid == NULL)
 824                 return -1;
 825         ssid->temporary = 1;
 826         ssid->p2p_group = p2p_group;
 827 #ifdef CONFIG_P2P
 828         if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
 829                 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
 830                 if (ssid->ssid) {
 831                         ssid->ssid_len = wpa_s->go_params->ssid_len;
 832                         os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
 833                                   ssid->ssid_len);
 834                         wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
 835                                           "SSID", ssid->ssid, ssid->ssid_len);
 836                 }
 837         }
 838 #endif /* CONFIG_P2P */
 839         wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0);
 840         if (wpa_s->wps_fragment_size)
 841                 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
 842         eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
 843                                wpa_s, NULL);
 844         wpas_wps_reassoc(wpa_s, ssid);
 845         return 0;
 846 }
 847
 848
 849 int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 850                        const char *pin, int p2p_group, u16 dev_pw_id)
 851 {
 852         struct wpa_ssid *ssid;
 853         char val[128];
 854         unsigned int rpin = 0;
 855
 856         wpas_clear_wps(wpa_s);
 857         ssid = wpas_wps_add_network(wpa_s, 0, bssid);
 858         if (ssid == NULL)
 859                 return -1;
 860         ssid->temporary = 1;
 861         ssid->p2p_group = p2p_group;
 862 #ifdef CONFIG_P2P
 863         if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
 864                 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
 865                 if (ssid->ssid) {
 866                         ssid->ssid_len = wpa_s->go_params->ssid_len;
 867                         os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
 868                                   ssid->ssid_len);
 869                         wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
 870                                           "SSID", ssid->ssid, ssid->ssid_len);
 871                 }
 872         }
 873 #endif /* CONFIG_P2P */
 874         if (pin)
 875                 os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u\"",
 876                             pin, dev_pw_id);
 877         else {
 878                 rpin = wps_generate_pin();
 879                 os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u\"",
 880                             rpin, dev_pw_id);
 881         }
 882         wpa_config_set(ssid, "phase1", val, 0);
 883         if (wpa_s->wps_fragment_size)
 884                 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
 885         eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
 886                                wpa_s, NULL);
 887         wpas_wps_reassoc(wpa_s, ssid);
 888         return rpin;
 889 }
 890
 891
 892 /* Cancel the wps pbc/pin requests */
 893 int wpas_wps_cancel(struct wpa_supplicant *wpa_s)
 894 {
 895 #ifdef CONFIG_AP
 896         if (wpa_s->ap_iface) {
 897                 wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode");
 898                 return wpa_supplicant_ap_wps_cancel(wpa_s);
 899         }
 900 #endif /* CONFIG_AP */
 901
 902         if (wpa_s->wpa_state == WPA_SCANNING) {
 903                 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan");
 904                 wpa_supplicant_cancel_scan(wpa_s);
 905                 wpas_clear_wps(wpa_s);
 906         } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
 907                 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - "
 908                            "deauthenticate");
 909                 wpa_supplicant_deauthenticate(wpa_s,
 910                                               WLAN_REASON_DEAUTH_LEAVING);
 911                 wpas_clear_wps(wpa_s);
 912         }
 913
 914         return 0;
 915 }
 916
 917
 918 #ifdef CONFIG_WPS_OOB
 919 int wpas_wps_start_oob(struct wpa_supplicant *wpa_s, char *device_type,
 920                        char *path, char *method, char *name)
 921 {
 922         struct wps_context *wps = wpa_s->wps;
 923         struct oob_device_data *oob_dev;
 924
 925         oob_dev = wps_get_oob_device(device_type);
 926         if (oob_dev == NULL)
 927                 return -1;
 928         oob_dev->device_path = path;
 929         oob_dev->device_name = name;
 930         wps->oob_conf.oob_method = wps_get_oob_method(method);
 931
 932         if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E) {
 933                 /*
 934                  * Use pre-configured DH keys in order to be able to write the
 935                  * key hash into the OOB file.
 936                  */
 937                 wpabuf_free(wps->dh_pubkey);
 938                 wpabuf_free(wps->dh_privkey);
 939                 wps->dh_privkey = NULL;
 940                 wps->dh_pubkey = NULL;
 941                 dh5_free(wps->dh_ctx);
 942                 wps->dh_ctx = dh5_init(&wps->dh_privkey, &wps->dh_pubkey);
 943                 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
 944                 if (wps->dh_ctx == NULL || wps->dh_pubkey == NULL) {
 945                         wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
 946                                    "Diffie-Hellman handshake");
 947                         return -1;
 948                 }
 949         }
 950
 951         if (wps->oob_conf.oob_method == OOB_METHOD_CRED)
 952                 wpas_clear_wps(wpa_s);
 953
 954         if (wps_process_oob(wps, oob_dev, 0) < 0)
 955                 return -1;
 956
 957         if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
 958              wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
 959             wpas_wps_start_pin(wpa_s, NULL,
 960                                wpabuf_head(wps->oob_conf.dev_password), 0,
 961                                DEV_PW_DEFAULT) < 0)
 962                         return -1;
 963
 964         return 0;
 965 }
 966 #endif /* CONFIG_WPS_OOB */
 967
 968
 969 int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
 970                        const char *pin, struct wps_new_ap_settings *settings)
 971 {
 972         struct wpa_ssid *ssid;
 973         char val[200];
 974         char *pos, *end;
 975         int res;
 976
 977         if (!pin)
 978                 return -1;
 979         wpas_clear_wps(wpa_s);
 980         ssid = wpas_wps_add_network(wpa_s, 1, bssid);
 981         if (ssid == NULL)
 982                 return -1;
 983         ssid->temporary = 1;
 984         pos = val;
 985         end = pos + sizeof(val);
 986         res = os_snprintf(pos, end - pos, "\"pin=%s", pin);
 987         if (res < 0 || res >= end - pos)
 988                 return -1;
 989         pos += res;
 990         if (settings) {
 991                 res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s "
 992                                   "new_encr=%s new_key=%s",
 993                                   settings->ssid_hex, settings->auth,
 994                                   settings->encr, settings->key_hex);
 995                 if (res < 0 || res >= end - pos)
 996                         return -1;
 997                 pos += res;
 998         }
 999         res = os_snprintf(pos, end - pos, "\"");
1000         if (res < 0 || res >= end - pos)
1001                 return -1;
1002         wpa_config_set(ssid, "phase1", val, 0);
1003         if (wpa_s->wps_fragment_size)
1004                 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
1005         eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1006                                wpa_s, NULL);
1007         wpas_wps_reassoc(wpa_s, ssid);
1008         return 0;
1009 }
1010
1011
1012 static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
1013                                size_t psk_len)
1014 {
1015         wpa_printf(MSG_DEBUG, "WPS: Received new WPA/WPA2-PSK from WPS for "
1016                    "STA " MACSTR, MAC2STR(mac_addr));
1017         wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
1018
1019         /* TODO */
1020
1021         return 0;
1022 }
1023
1024
1025 static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
1026                                    const struct wps_device_data *dev)
1027 {
1028         char uuid[40], txt[400];
1029         int len;
1030         char devtype[WPS_DEV_TYPE_BUFSIZE];
1031         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
1032                 return;
1033         wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid);
1034         len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR
1035                           " [%s|%s|%s|%s|%s|%s]",
1036                           uuid, MAC2STR(dev->mac_addr), dev->device_name,
1037                           dev->manufacturer, dev->model_name,
1038                           dev->model_number, dev->serial_number,
1039                           wps_dev_type_bin2str(dev->pri_dev_type, devtype,
1040                                                sizeof(devtype)));
1041         if (len > 0 && len < (int) sizeof(txt))
1042                 wpa_printf(MSG_INFO, "%s", txt);
1043 }
1044
1045
1046 static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id,
1047                                     u16 sel_reg_config_methods)
1048 {
1049 #ifdef CONFIG_WPS_ER
1050         struct wpa_supplicant *wpa_s = ctx;
1051
1052         if (wpa_s->wps_er == NULL)
1053                 return;
1054         wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d "
1055                    "dev_password_id=%u sel_reg_config_methods=0x%x",
1056                    sel_reg, dev_passwd_id, sel_reg_config_methods);
1057         wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id,
1058                            sel_reg_config_methods);
1059 #endif /* CONFIG_WPS_ER */
1060 }
1061
1062
1063 static u16 wps_fix_config_methods(u16 config_methods)
1064 {
1065 #ifdef CONFIG_WPS2
1066         if ((config_methods &
1067              (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
1068               WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
1069                 wpa_printf(MSG_INFO, "WPS: Converting display to "
1070                            "virtual_display for WPS 2.0 compliance");
1071                 config_methods |= WPS_CONFIG_VIRT_DISPLAY;
1072         }
1073         if ((config_methods &
1074              (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
1075               WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
1076                 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
1077                            "virtual_push_button for WPS 2.0 compliance");
1078                 config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
1079         }
1080 #endif /* CONFIG_WPS2 */
1081
1082         return config_methods;
1083 }
1084
1085
1086 static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s,
1087                               struct wps_context *wps)
1088 {
1089         wpa_printf(MSG_DEBUG, "WPS: Set UUID for interface %s", wpa_s->ifname);
1090         if (is_nil_uuid(wpa_s->conf->uuid)) {
1091                 struct wpa_supplicant *first;
1092                 first = wpa_s->global->ifaces;
1093                 while (first && first->next)
1094                         first = first->next;
1095                 if (first && first != wpa_s) {
1096                         os_memcpy(wps->uuid, wpa_s->global->ifaces->wps->uuid,
1097                                   WPS_UUID_LEN);
1098                         wpa_hexdump(MSG_DEBUG, "WPS: UUID from the first "
1099                                     "interface", wps->uuid, WPS_UUID_LEN);
1100                 } else {
1101                         uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
1102                         wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
1103                                     "address", wps->uuid, WPS_UUID_LEN);
1104                 }
1105         } else {
1106                 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
1107                 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on configuration",
1108                             wps->uuid, WPS_UUID_LEN);
1109         }
1110 }
1111
1112
1113 int wpas_wps_init(struct wpa_supplicant *wpa_s)
1114 {
1115         struct wps_context *wps;
1116         struct wps_registrar_config rcfg;
1117
1118         wps = os_zalloc(sizeof(*wps));
1119         if (wps == NULL)
1120                 return -1;
1121
1122         wps->cred_cb = wpa_supplicant_wps_cred;
1123         wps->event_cb = wpa_supplicant_wps_event;
1124         wps->cb_ctx = wpa_s;
1125
1126         wps->dev.device_name = wpa_s->conf->device_name;
1127         wps->dev.manufacturer = wpa_s->conf->manufacturer;
1128         wps->dev.model_name = wpa_s->conf->model_name;
1129         wps->dev.model_number = wpa_s->conf->model_number;
1130         wps->dev.serial_number = wpa_s->conf->serial_number;
1131         wps->config_methods =
1132                 wps_config_methods_str2bin(wpa_s->conf->config_methods);
1133         if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1134             (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1135                 wpa_printf(MSG_ERROR, "WPS: Both Label and Display config "
1136                            "methods are not allowed at the same time");
1137                 os_free(wps);
1138                 return -1;
1139         }
1140         wps->config_methods = wps_fix_config_methods(wps->config_methods);
1141         os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1142                   WPS_DEV_TYPE_LEN);
1143
1144         wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1145         os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1146                   WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types);
1147
1148         wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1149         wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ; /* TODO: config */
1150         os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
1151         wpas_wps_set_uuid(wpa_s, wps);
1152
1153         wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
1154         wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
1155
1156         os_memset(&rcfg, 0, sizeof(rcfg));
1157         rcfg.new_psk_cb = wpas_wps_new_psk_cb;
1158         rcfg.pin_needed_cb = wpas_wps_pin_needed_cb;
1159         rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb;
1160         rcfg.cb_ctx = wpa_s;
1161
1162         wps->registrar = wps_registrar_init(wps, &rcfg);
1163         if (wps->registrar == NULL) {
1164                 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar");
1165                 os_free(wps);
1166                 return -1;
1167         }
1168
1169         wpa_s->wps = wps;
1170
1171         return 0;
1172 }
1173
1174
1175 void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
1176 {
1177         eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
1178
1179         if (wpa_s->wps == NULL)
1180                 return;
1181
1182 #ifdef CONFIG_WPS_ER
1183         wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1184         wpa_s->wps_er = NULL;
1185 #endif /* CONFIG_WPS_ER */
1186
1187         wps_registrar_deinit(wpa_s->wps->registrar);
1188         wpabuf_free(wpa_s->wps->dh_pubkey);
1189         wpabuf_free(wpa_s->wps->dh_privkey);
1190         wpabuf_free(wpa_s->wps->oob_conf.pubkey_hash);
1191         wpabuf_free(wpa_s->wps->oob_conf.dev_password);
1192         os_free(wpa_s->wps->network_key);
1193         os_free(wpa_s->wps);
1194         wpa_s->wps = NULL;
1195 }
1196
1197
1198 int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
1199                             struct wpa_ssid *ssid, struct wpa_scan_res *bss)
1200 {
1201         struct wpabuf *wps_ie;
1202
1203         if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
1204                 return -1;
1205
1206         wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1207         if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1208                 if (!wps_ie) {
1209                         wpa_printf(MSG_DEBUG, "   skip - non-WPS AP");
1210                         return 0;
1211                 }
1212
1213                 if (!wps_is_selected_pbc_registrar(wps_ie)) {
1214                         wpa_printf(MSG_DEBUG, "   skip - WPS AP "
1215                                    "without active PBC Registrar");
1216                         wpabuf_free(wps_ie);
1217                         return 0;
1218                 }
1219
1220                 /* TODO: overlap detection */
1221                 wpa_printf(MSG_DEBUG, "   selected based on WPS IE "
1222                            "(Active PBC)");
1223                 wpabuf_free(wps_ie);
1224                 return 1;
1225         }
1226
1227         if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1228                 if (!wps_ie) {
1229                         wpa_printf(MSG_DEBUG, "   skip - non-WPS AP");
1230                         return 0;
1231                 }
1232
1233                 /*
1234                  * Start with WPS APs that advertise our address as an
1235                  * authorized MAC (v2.0) or active PIN Registrar (v1.0) and
1236                  * allow any WPS AP after couple of scans since some APs do not
1237                  * set Selected Registrar attribute properly when using
1238                  * external Registrar.
1239                  */
1240                 if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) {
1241                         if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG) {
1242                                 wpa_printf(MSG_DEBUG, "   skip - WPS AP "
1243                                            "without active PIN Registrar");
1244                                 wpabuf_free(wps_ie);
1245                                 return 0;
1246                         }
1247                         wpa_printf(MSG_DEBUG, "   selected based on WPS IE");
1248                 } else {
1249                         wpa_printf(MSG_DEBUG, "   selected based on WPS IE "
1250                                    "(Authorized MAC or Active PIN)");
1251                 }
1252                 wpabuf_free(wps_ie);
1253                 return 1;
1254         }
1255
1256         if (wps_ie) {
1257                 wpa_printf(MSG_DEBUG, "   selected based on WPS IE");
1258                 wpabuf_free(wps_ie);
1259                 return 1;
1260         }
1261
1262         return -1;
1263 }
1264
1265
1266 int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
1267                               struct wpa_ssid *ssid,
1268                               struct wpa_scan_res *bss)
1269 {
1270         struct wpabuf *wps_ie = NULL;
1271         int ret = 0;
1272
1273         if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1274                 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1275                 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) {
1276                         /* allow wildcard SSID for WPS PBC */
1277                         ret = 1;
1278                 }
1279         } else if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1280                 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1281                 if (wps_ie &&
1282                     (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) ||
1283                      wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) {
1284                         /* allow wildcard SSID for WPS PIN */
1285                         ret = 1;
1286                 }
1287         }
1288
1289         if (!ret && ssid->bssid_set &&
1290             os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) {
1291                 /* allow wildcard SSID due to hardcoded BSSID match */
1292                 ret = 1;
1293         }
1294
1295 #ifdef CONFIG_WPS_STRICT
1296         if (wps_ie) {
1297                 if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len >
1298                                                    0, bss->bssid) < 0)
1299                         ret = 0;
1300                 if (bss->beacon_ie_len) {
1301                         struct wpabuf *bcn_wps;
1302                         bcn_wps = wpa_scan_get_vendor_ie_multi_beacon(
1303                                 bss, WPS_IE_VENDOR_TYPE);
1304                         if (bcn_wps == NULL) {
1305                                 wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE "
1306                                            "missing from AP Beacon");
1307                                 ret = 0;
1308                         } else {
1309                                 if (wps_validate_beacon(wps_ie) < 0)
1310                                         ret = 0;
1311                                 wpabuf_free(bcn_wps);
1312                         }
1313                 }
1314         }
1315 #endif /* CONFIG_WPS_STRICT */
1316
1317         wpabuf_free(wps_ie);
1318
1319         return ret;
1320 }
1321
1322
1323 int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
1324                               struct wpa_bss *selected, struct wpa_ssid *ssid)
1325 {
1326         const u8 *sel_uuid, *uuid;
1327         struct wpabuf *wps_ie;
1328         int ret = 0;
1329         struct wpa_bss *bss;
1330
1331         if (!eap_is_wps_pbc_enrollee(&ssid->eap))
1332                 return 0;
1333
1334         wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is "
1335                    "present in scan results; selected BSSID " MACSTR,
1336                    MAC2STR(selected->bssid));
1337
1338         /* Make sure that only one AP is in active PBC mode */
1339         wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE);
1340         if (wps_ie) {
1341                 sel_uuid = wps_get_uuid_e(wps_ie);
1342                 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS",
1343                             sel_uuid, UUID_LEN);
1344         } else {
1345                 wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include "
1346                            "WPS IE?!");
1347                 sel_uuid = NULL;
1348         }
1349
1350         dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1351                 struct wpabuf *ie;
1352                 if (bss == selected)
1353                         continue;
1354                 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1355                 if (!ie)
1356                         continue;
1357                 if (!wps_is_selected_pbc_registrar(ie)) {
1358                         wpabuf_free(ie);
1359                         continue;
1360                 }
1361                 wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: "
1362                            MACSTR, MAC2STR(bss->bssid));
1363                 uuid = wps_get_uuid_e(ie);
1364                 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS",
1365                             uuid, UUID_LEN);
1366                 if (sel_uuid == NULL || uuid == NULL ||
1367                     os_memcmp(sel_uuid, uuid, UUID_LEN) != 0) {
1368                         ret = 1; /* PBC overlap */
1369                         wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: "
1370                                 MACSTR " and " MACSTR,
1371                                 MAC2STR(selected->bssid),
1372                                 MAC2STR(bss->bssid));
1373                         wpabuf_free(ie);
1374                         break;
1375                 }
1376
1377                 /* TODO: verify that this is reasonable dual-band situation */
1378
1379                 wpabuf_free(ie);
1380         }
1381
1382         wpabuf_free(wps_ie);
1383
1384         return ret;
1385 }
1386
1387
1388 void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
1389 {
1390         struct wpa_bss *bss;
1391         unsigned int pbc = 0, auth = 0, pin = 0, wps = 0;
1392
1393         if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED)
1394                 return;
1395
1396         dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1397                 struct wpabuf *ie;
1398                 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1399                 if (!ie)
1400                         continue;
1401                 if (wps_is_selected_pbc_registrar(ie))
1402                         pbc++;
1403                 else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0))
1404                         auth++;
1405                 else if (wps_is_selected_pin_registrar(ie))
1406                         pin++;
1407                 else
1408                         wps++;
1409                 wpabuf_free(ie);
1410         }
1411
1412         if (pbc)
1413                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC);
1414         else if (auth)
1415                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH);
1416         else if (pin)
1417                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN);
1418         else if (wps)
1419                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE);
1420 }
1421
1422
1423 int wpas_wps_searching(struct wpa_supplicant *wpa_s)
1424 {
1425         struct wpa_ssid *ssid;
1426
1427         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1428                 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled)
1429                         return 1;
1430         }
1431
1432         return 0;
1433 }
1434
1435
1436 int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
1437                               char *end)
1438 {
1439         struct wpabuf *wps_ie;
1440         int ret;
1441
1442         wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA);
1443         if (wps_ie == NULL)
1444                 return 0;
1445
1446         ret = wps_attr_text(wps_ie, buf, end);
1447         wpabuf_free(wps_ie);
1448         return ret;
1449 }
1450
1451
1452 int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter)
1453 {
1454 #ifdef CONFIG_WPS_ER
1455         if (wpa_s->wps_er) {
1456                 wps_er_refresh(wpa_s->wps_er);
1457                 return 0;
1458         }
1459         wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter);
1460         if (wpa_s->wps_er == NULL)
1461                 return -1;
1462         return 0;
1463 #else /* CONFIG_WPS_ER */
1464         return 0;
1465 #endif /* CONFIG_WPS_ER */
1466 }
1467
1468
1469 int wpas_wps_er_stop(struct wpa_supplicant *wpa_s)
1470 {
1471 #ifdef CONFIG_WPS_ER
1472         wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1473         wpa_s->wps_er = NULL;
1474 #endif /* CONFIG_WPS_ER */
1475         return 0;
1476 }
1477
1478
1479 #ifdef CONFIG_WPS_ER
1480 int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr,
1481                         const char *uuid, const char *pin)
1482 {
1483         u8 u[UUID_LEN];
1484         int any = 0;
1485
1486         if (os_strcmp(uuid, "any") == 0)
1487                 any = 1;
1488         else if (uuid_str2bin(uuid, u))
1489                 return -1;
1490         return wps_registrar_add_pin(wpa_s->wps->registrar, addr,
1491                                      any ? NULL : u,
1492                                      (const u8 *) pin, os_strlen(pin), 300);
1493 }
1494
1495
1496 int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid)
1497 {
1498         u8 u[UUID_LEN];
1499
1500         if (uuid_str2bin(uuid, u))
1501                 return -1;
1502         return wps_er_pbc(wpa_s->wps_er, u);
1503 }
1504
1505
1506 int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid,
1507                       const char *pin)
1508 {
1509         u8 u[UUID_LEN];
1510
1511         if (uuid_str2bin(uuid, u))
1512                 return -1;
1513         return wps_er_learn(wpa_s->wps_er, u, (const u8 *) pin,
1514                             os_strlen(pin));
1515 }
1516
1517
1518 int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid,
1519                            int id)
1520 {
1521         u8 u[UUID_LEN];
1522         struct wpa_ssid *ssid;
1523         struct wps_credential cred;
1524
1525         if (uuid_str2bin(uuid, u))
1526                 return -1;
1527         ssid = wpa_config_get_network(wpa_s->conf, id);
1528         if (ssid == NULL || ssid->ssid == NULL)
1529                 return -1;
1530
1531         os_memset(&cred, 0, sizeof(cred));
1532         if (ssid->ssid_len > 32)
1533                 return -1;
1534         os_memcpy(cred.ssid, ssid->ssid, ssid->ssid_len);
1535         cred.ssid_len = ssid->ssid_len;
1536         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
1537                 cred.auth_type = (ssid->proto & WPA_PROTO_RSN) ?
1538                         WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK;
1539                 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
1540                         cred.encr_type = WPS_ENCR_AES;
1541                 else
1542                         cred.encr_type = WPS_ENCR_TKIP;
1543                 if (ssid->passphrase) {
1544                         cred.key_len = os_strlen(ssid->passphrase);
1545                         if (cred.key_len >= 64)
1546                                 return -1;
1547                         os_memcpy(cred.key, ssid->passphrase, cred.key_len);
1548                 } else if (ssid->psk_set) {
1549                         cred.key_len = 32;
1550                         os_memcpy(cred.key, ssid->psk, 32);
1551                 } else
1552                         return -1;
1553         } else {
1554                 cred.auth_type = WPS_AUTH_OPEN;
1555                 cred.encr_type = WPS_ENCR_NONE;
1556         }
1557         return wps_er_set_config(wpa_s->wps_er, u, &cred);
1558 }
1559
1560
1561 int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid,
1562                        const char *pin, struct wps_new_ap_settings *settings)
1563 {
1564         u8 u[UUID_LEN];
1565         struct wps_credential cred;
1566         size_t len;
1567
1568         if (uuid_str2bin(uuid, u))
1569                 return -1;
1570         if (settings->ssid_hex == NULL || settings->auth == NULL ||
1571             settings->encr == NULL || settings->key_hex == NULL)
1572                 return -1;
1573
1574         os_memset(&cred, 0, sizeof(cred));
1575         len = os_strlen(settings->ssid_hex);
1576         if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
1577             hexstr2bin(settings->ssid_hex, cred.ssid, len / 2))
1578                 return -1;
1579         cred.ssid_len = len / 2;
1580
1581         len = os_strlen(settings->key_hex);
1582         if ((len & 1) || len > 2 * sizeof(cred.key) ||
1583             hexstr2bin(settings->key_hex, cred.key, len / 2))
1584                 return -1;
1585         cred.key_len = len / 2;
1586
1587         if (os_strcmp(settings->auth, "OPEN") == 0)
1588                 cred.auth_type = WPS_AUTH_OPEN;
1589         else if (os_strcmp(settings->auth, "WPAPSK") == 0)
1590                 cred.auth_type = WPS_AUTH_WPAPSK;
1591         else if (os_strcmp(settings->auth, "WPA2PSK") == 0)
1592                 cred.auth_type = WPS_AUTH_WPA2PSK;
1593         else
1594                 return -1;
1595
1596         if (os_strcmp(settings->encr, "NONE") == 0)
1597                 cred.encr_type = WPS_ENCR_NONE;
1598         else if (os_strcmp(settings->encr, "WEP") == 0)
1599                 cred.encr_type = WPS_ENCR_WEP;
1600         else if (os_strcmp(settings->encr, "TKIP") == 0)
1601                 cred.encr_type = WPS_ENCR_TKIP;
1602         else if (os_strcmp(settings->encr, "CCMP") == 0)
1603                 cred.encr_type = WPS_ENCR_AES;
1604         else
1605                 return -1;
1606
1607         return wps_er_config(wpa_s->wps_er, u, (const u8 *) pin,
1608                              os_strlen(pin), &cred);
1609 }
1610
1611
1612 static int callbacks_pending = 0;
1613
1614 static void wpas_wps_terminate_cb(void *ctx)
1615 {
1616         wpa_printf(MSG_DEBUG, "WPS ER: Terminated");
1617         if (--callbacks_pending <= 0)
1618                 eloop_terminate();
1619 }
1620 #endif /* CONFIG_WPS_ER */
1621
1622
1623 int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s)
1624 {
1625 #ifdef CONFIG_WPS_ER
1626         if (wpa_s->wps_er) {
1627                 callbacks_pending++;
1628                 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s);
1629                 wpa_s->wps_er = NULL;
1630                 return 1;
1631         }
1632 #endif /* CONFIG_WPS_ER */
1633         return 0;
1634 }
1635
1636
1637 int wpas_wps_in_progress(struct wpa_supplicant *wpa_s)
1638 {
1639         struct wpa_ssid *ssid;
1640
1641         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1642                 if (!ssid->disabled && ssid->key_mgmt == WPA_KEY_MGMT_WPS)
1643                         return 1;
1644         }
1645
1646         return 0;
1647 }
1648
1649
1650 void wpas_wps_update_config(struct wpa_supplicant *wpa_s)
1651 {
1652         struct wps_context *wps = wpa_s->wps;
1653
1654         if (wps == NULL)
1655                 return;
1656
1657         if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) {
1658                 wps->config_methods = wps_config_methods_str2bin(
1659                         wpa_s->conf->config_methods);
1660                 if ((wps->config_methods &
1661                      (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1662                     (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1663                         wpa_printf(MSG_ERROR, "WPS: Both Label and Display "
1664                                    "config methods are not allowed at the "
1665                                    "same time");
1666                         wps->config_methods &= ~WPS_CONFIG_LABEL;
1667                 }
1668         }
1669         wps->config_methods = wps_fix_config_methods(wps->config_methods);
1670
1671         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
1672                 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1673                           WPS_DEV_TYPE_LEN);
1674
1675         if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) {
1676                 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1677                 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1678                           wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN);
1679         }
1680
1681         if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION)
1682                 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1683
1684         if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID)
1685                 wpas_wps_set_uuid(wpa_s, wps);
1686
1687         if (wpa_s->conf->changed_parameters &
1688             (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) {
1689                 /* Update pointers to make sure they refer current values */
1690                 wps->dev.device_name = wpa_s->conf->device_name;
1691                 wps->dev.manufacturer = wpa_s->conf->manufacturer;
1692                 wps->dev.model_name = wpa_s->conf->model_name;
1693                 wps->dev.model_number = wpa_s->conf->model_number;
1694                 wps->dev.serial_number = wpa_s->conf->serial_number;
1695         }
1696 }