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->normal_scans = 0;
  92                 wpa_s->reassociate = 1;
  93                 wpa_supplicant_req_scan(wpa_s, 0, 0);
  94                 return 1;
  95         }
  96
  97         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) {
  98                 wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting "
  99                            "for external credential processing");
 100                 wpas_clear_wps(wpa_s);
 101                 wpa_supplicant_deauthenticate(wpa_s,
 102                                               WLAN_REASON_DEAUTH_LEAVING);
 103                 return 1;
 104         }
 105
 106         return 0;
 107 }
 108
 109
 110 static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s,
 111                                          struct wpa_ssid *ssid,
 112                                          const struct wps_credential *cred)
 113 {
 114         struct wpa_driver_capa capa;
 115         struct wpa_bss *bss;
 116         const u8 *ie;
 117         struct wpa_ie_data adv;
 118         int wpa2 = 0, ccmp = 0;
 119
 120         /*
 121          * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in
 122          * case they are configured for mixed mode operation (WPA+WPA2 and
 123          * TKIP+CCMP). Try to use scan results to figure out whether the AP
 124          * actually supports stronger security and select that if the client
 125          * has support for it, too.
 126          */
 127
 128         if (wpa_drv_get_capa(wpa_s, &capa))
 129                 return; /* Unknown what driver supports */
 130
 131         if (ssid->ssid == NULL)
 132                 return;
 133         bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len);
 134         if (bss == NULL) {
 135                 wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS "
 136                            "table - use credential as-is");
 137                 return;
 138         }
 139
 140         wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table");
 141
 142         ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
 143         if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) {
 144                 wpa2 = 1;
 145                 if (adv.pairwise_cipher & WPA_CIPHER_CCMP)
 146                         ccmp = 1;
 147         } else {
 148                 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 149                 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 &&
 150                     adv.pairwise_cipher & WPA_CIPHER_CCMP)
 151                         ccmp = 1;
 152         }
 153
 154         if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) &&
 155             (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) {
 156                 /*
 157                  * TODO: This could be the initial AP configuration and the
 158                  * Beacon contents could change shortly. Should request a new
 159                  * scan and delay addition of the network until the updated
 160                  * scan results are available.
 161                  */
 162                 wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA "
 163                            "support - use credential as-is");
 164                 return;
 165         }
 166
 167         if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
 168             (ssid->pairwise_cipher & WPA_CIPHER_TKIP) &&
 169             (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
 170                 wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential "
 171                            "based on scan results");
 172                 if (wpa_s->conf->ap_scan == 1)
 173                         ssid->pairwise_cipher |= WPA_CIPHER_CCMP;
 174                 else
 175                         ssid->pairwise_cipher = WPA_CIPHER_CCMP;
 176         }
 177
 178         if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) &&
 179             (ssid->proto & WPA_PROTO_WPA) &&
 180             (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) {
 181                 wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential "
 182                            "based on scan results");
 183                 if (wpa_s->conf->ap_scan == 1)
 184                         ssid->proto |= WPA_PROTO_RSN;
 185                 else
 186                         ssid->proto = WPA_PROTO_RSN;
 187         }
 188 }
 189
 190
 191 static int wpa_supplicant_wps_cred(void *ctx,
 192                                    const struct wps_credential *cred)
 193 {
 194         struct wpa_supplicant *wpa_s = ctx;
 195         struct wpa_ssid *ssid = wpa_s->current_ssid;
 196         u8 key_idx = 0;
 197         u16 auth_type;
 198 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
 199         int registrar = 0;
 200 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
 201
 202         if ((wpa_s->conf->wps_cred_processing == 1 ||
 203              wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) {
 204                 size_t blen = cred->cred_attr_len * 2 + 1;
 205                 char *buf = os_malloc(blen);
 206                 if (buf) {
 207                         wpa_snprintf_hex(buf, blen,
 208                                          cred->cred_attr, cred->cred_attr_len);
 209                         wpa_msg(wpa_s, MSG_INFO, "%s%s",
 210                                 WPS_EVENT_CRED_RECEIVED, buf);
 211                         os_free(buf);
 212                 }
 213
 214                 wpas_notify_wps_credential(wpa_s, cred);
 215         } else
 216                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED);
 217
 218         wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
 219                         cred->cred_attr, cred->cred_attr_len);
 220
 221         if (wpa_s->conf->wps_cred_processing == 1)
 222                 return 0;
 223
 224         wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
 225         wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
 226                    cred->auth_type);
 227         wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
 228         wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
 229         wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
 230                         cred->key, cred->key_len);
 231         wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
 232                    MAC2STR(cred->mac_addr));
 233
 234         auth_type = cred->auth_type;
 235         if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
 236                 wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode "
 237                            "auth_type into WPA2PSK");
 238                 auth_type = WPS_AUTH_WPA2PSK;
 239         }
 240
 241         if (auth_type != WPS_AUTH_OPEN &&
 242             auth_type != WPS_AUTH_SHARED &&
 243             auth_type != WPS_AUTH_WPAPSK &&
 244             auth_type != WPS_AUTH_WPA2PSK) {
 245                 wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
 246                            "unsupported authentication type 0x%x",
 247                            auth_type);
 248                 return 0;
 249         }
 250
 251         if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
 252                 wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based "
 253                            "on the received credential");
 254 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
 255                 if (ssid->eap.identity &&
 256                     ssid->eap.identity_len == WSC_ID_REGISTRAR_LEN &&
 257                     os_memcmp(ssid->eap.identity, WSC_ID_REGISTRAR,
 258                               WSC_ID_REGISTRAR_LEN) == 0)
 259                         registrar = 1;
 260 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
 261                 os_free(ssid->eap.identity);
 262                 ssid->eap.identity = NULL;
 263                 ssid->eap.identity_len = 0;
 264                 os_free(ssid->eap.phase1);
 265                 ssid->eap.phase1 = NULL;
 266                 os_free(ssid->eap.eap_methods);
 267                 ssid->eap.eap_methods = NULL;
 268                 if (!ssid->p2p_group)
 269                         ssid->temporary = 0;
 270         } else {
 271                 wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the "
 272                            "received credential");
 273                 ssid = wpa_config_add_network(wpa_s->conf);
 274                 if (ssid == NULL)
 275                         return -1;
 276                 wpas_notify_network_added(wpa_s, ssid);
 277         }
 278
 279         wpa_config_set_network_defaults(ssid);
 280
 281         os_free(ssid->ssid);
 282         ssid->ssid = os_malloc(cred->ssid_len);
 283         if (ssid->ssid) {
 284                 os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len);
 285                 ssid->ssid_len = cred->ssid_len;
 286         }
 287
 288         switch (cred->encr_type) {
 289         case WPS_ENCR_NONE:
 290                 break;
 291         case WPS_ENCR_WEP:
 292                 if (cred->key_len <= 0)
 293                         break;
 294                 if (cred->key_len != 5 && cred->key_len != 13 &&
 295                     cred->key_len != 10 && cred->key_len != 26) {
 296                         wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key length "
 297                                    "%lu", (unsigned long) cred->key_len);
 298                         return -1;
 299                 }
 300                 if (cred->key_idx > NUM_WEP_KEYS) {
 301                         wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key index %d",
 302                                    cred->key_idx);
 303                         return -1;
 304                 }
 305                 if (cred->key_idx)
 306                         key_idx = cred->key_idx - 1;
 307                 if (cred->key_len == 10 || cred->key_len == 26) {
 308                         if (hexstr2bin((char *) cred->key,
 309                                        ssid->wep_key[key_idx],
 310                                        cred->key_len / 2) < 0) {
 311                                 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key "
 312                                            "%d", key_idx);
 313                                 return -1;
 314                         }
 315                         ssid->wep_key_len[key_idx] = cred->key_len / 2;
 316                 } else {
 317                         os_memcpy(ssid->wep_key[key_idx], cred->key,
 318                                   cred->key_len);
 319                         ssid->wep_key_len[key_idx] = cred->key_len;
 320                 }
 321                 ssid->wep_tx_keyidx = key_idx;
 322                 break;
 323         case WPS_ENCR_TKIP:
 324                 ssid->pairwise_cipher = WPA_CIPHER_TKIP;
 325                 break;
 326         case WPS_ENCR_AES:
 327                 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
 328                 break;
 329         }
 330
 331         switch (auth_type) {
 332         case WPS_AUTH_OPEN:
 333                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 334                 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
 335                 ssid->proto = 0;
 336 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
 337                 if (registrar) {
 338                         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK
 339                                 "id=%d - Credentials for an open "
 340                                 "network disabled by default - use "
 341                                 "'select_network %d' to enable",
 342                                 ssid->id, ssid->id);
 343                         ssid->disabled = 1;
 344                 }
 345 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
 346                 break;
 347         case WPS_AUTH_SHARED:
 348                 ssid->auth_alg = WPA_AUTH_ALG_SHARED;
 349                 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
 350                 ssid->proto = 0;
 351                 break;
 352         case WPS_AUTH_WPAPSK:
 353                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 354                 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
 355                 ssid->proto = WPA_PROTO_WPA;
 356                 break;
 357         case WPS_AUTH_WPA:
 358                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 359                 ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
 360                 ssid->proto = WPA_PROTO_WPA;
 361                 break;
 362         case WPS_AUTH_WPA2:
 363                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 364                 ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
 365                 ssid->proto = WPA_PROTO_RSN;
 366                 break;
 367         case WPS_AUTH_WPA2PSK:
 368                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 369                 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
 370                 ssid->proto = WPA_PROTO_RSN;
 371                 break;
 372         }
 373
 374         if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) {
 375                 if (cred->key_len == 2 * PMK_LEN) {
 376                         if (hexstr2bin((const char *) cred->key, ssid->psk,
 377                                        PMK_LEN)) {
 378                                 wpa_printf(MSG_ERROR, "WPS: Invalid Network "
 379                                            "Key");
 380                                 return -1;
 381                         }
 382                         ssid->psk_set = 1;
 383                         ssid->export_keys = 1;
 384                 } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) {
 385                         os_free(ssid->passphrase);
 386                         ssid->passphrase = os_malloc(cred->key_len + 1);
 387                         if (ssid->passphrase == NULL)
 388                                 return -1;
 389                         os_memcpy(ssid->passphrase, cred->key, cred->key_len);
 390                         ssid->passphrase[cred->key_len] = '\0';
 391                         wpa_config_update_psk(ssid);
 392                         ssid->export_keys = 1;
 393                 } else {
 394                         wpa_printf(MSG_ERROR, "WPS: Invalid Network Key "
 395                                    "length %lu",
 396                                    (unsigned long) cred->key_len);
 397                         return -1;
 398                 }
 399         }
 400
 401         wpas_wps_security_workaround(wpa_s, ssid, cred);
 402
 403 #ifndef CONFIG_NO_CONFIG_WRITE
 404         if (wpa_s->conf->update_config &&
 405             wpa_config_write(wpa_s->confname, wpa_s->conf)) {
 406                 wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration");
 407                 return -1;
 408         }
 409 #endif /* CONFIG_NO_CONFIG_WRITE */
 410
 411         return 0;
 412 }
 413
 414
 415 #ifdef CONFIG_P2P
 416 static void wpas_wps_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
 417 {
 418         struct wpa_supplicant *wpa_s = eloop_ctx;
 419         wpas_p2p_notif_pbc_overlap(wpa_s);
 420 }
 421 #endif /* CONFIG_P2P */
 422
 423
 424 static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s,
 425                                          struct wps_event_m2d *m2d)
 426 {
 427         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D
 428                 "dev_password_id=%d config_error=%d",
 429                 m2d->dev_password_id, m2d->config_error);
 430         wpas_notify_wps_event_m2d(wpa_s, m2d);
 431 #ifdef CONFIG_P2P
 432         if (wpa_s->parent && wpa_s->parent != wpa_s) {
 433                 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_M2D
 434                         "dev_password_id=%d config_error=%d",
 435                         m2d->dev_password_id, m2d->config_error);
 436         }
 437         if (m2d->config_error == WPS_CFG_MULTIPLE_PBC_DETECTED) {
 438                 /*
 439                  * Notify P2P from eloop timeout to avoid issues with the
 440                  * interface getting removed while processing a message.
 441                  */
 442                 eloop_register_timeout(0, 0, wpas_wps_pbc_overlap_cb, wpa_s,
 443                                        NULL);
 444         }
 445 #endif /* CONFIG_P2P */
 446 }
 447
 448
 449 static const char * wps_event_fail_reason[NUM_WPS_EI_VALUES] = {
 450         "No Error", /* WPS_EI_NO_ERROR */
 451         "TKIP Only Prohibited", /* WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED */
 452         "WEP Prohibited" /* WPS_EI_SECURITY_WEP_PROHIBITED */
 453 };
 454
 455 static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
 456                                           struct wps_event_fail *fail)
 457 {
 458         if (fail->error_indication > 0 &&
 459             fail->error_indication < NUM_WPS_EI_VALUES) {
 460                 wpa_msg(wpa_s, MSG_INFO,
 461                         WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
 462                         fail->msg, fail->config_error, fail->error_indication,
 463                         wps_event_fail_reason[fail->error_indication]);
 464                 if (wpa_s->parent && wpa_s->parent != wpa_s)
 465                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 466                                 "msg=%d config_error=%d reason=%d (%s)",
 467                                 fail->msg, fail->config_error,
 468                                 fail->error_indication,
 469                                 wps_event_fail_reason[fail->error_indication]);
 470         } else {
 471                 wpa_msg(wpa_s, MSG_INFO,
 472                         WPS_EVENT_FAIL "msg=%d config_error=%d",
 473                         fail->msg, fail->config_error);
 474                 if (wpa_s->parent && wpa_s->parent != wpa_s)
 475                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 476                                 "msg=%d config_error=%d",
 477                                 fail->msg, fail->config_error);
 478         }
 479         wpas_clear_wps(wpa_s);
 480         wpas_notify_wps_event_fail(wpa_s, fail);
 481 #ifdef CONFIG_P2P
 482         wpas_p2p_wps_failed(wpa_s, fail);
 483 #endif /* CONFIG_P2P */
 484 }
 485
 486
 487 static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s)
 488 {
 489         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS);
 490         wpa_s->wps_success = 1;
 491         wpas_notify_wps_event_success(wpa_s);
 492 #ifdef CONFIG_P2P
 493         wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0);
 494 #endif /* CONFIG_P2P */
 495 }
 496
 497
 498 static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s,
 499                                                struct wps_event_er_ap *ap)
 500 {
 501         char uuid_str[100];
 502         char dev_type[WPS_DEV_TYPE_BUFSIZE];
 503
 504         uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
 505         if (ap->pri_dev_type)
 506                 wps_dev_type_bin2str(ap->pri_dev_type, dev_type,
 507                                      sizeof(dev_type));
 508         else
 509                 dev_type[0] = '\0';
 510
 511         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR
 512                 " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|",
 513                 uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state,
 514                 ap->friendly_name ? ap->friendly_name : "",
 515                 ap->manufacturer ? ap->manufacturer : "",
 516                 ap->model_description ? ap->model_description : "",
 517                 ap->model_name ? ap->model_name : "",
 518                 ap->manufacturer_url ? ap->manufacturer_url : "",
 519                 ap->model_url ? ap->model_url : "");
 520 }
 521
 522
 523 static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s,
 524                                                   struct wps_event_er_ap *ap)
 525 {
 526         char uuid_str[100];
 527         uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
 528         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str);
 529 }
 530
 531
 532 static void wpa_supplicant_wps_event_er_enrollee_add(
 533         struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
 534 {
 535         char uuid_str[100];
 536         char dev_type[WPS_DEV_TYPE_BUFSIZE];
 537
 538         uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
 539         if (enrollee->pri_dev_type)
 540                 wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type,
 541                                      sizeof(dev_type));
 542         else
 543                 dev_type[0] = '\0';
 544
 545         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR
 546                 " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s "
 547                 "|%s|%s|%s|%s|%s|",
 548                 uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received,
 549                 enrollee->config_methods, enrollee->dev_passwd_id, dev_type,
 550                 enrollee->dev_name ? enrollee->dev_name : "",
 551                 enrollee->manufacturer ? enrollee->manufacturer : "",
 552                 enrollee->model_name ? enrollee->model_name : "",
 553                 enrollee->model_number ? enrollee->model_number : "",
 554                 enrollee->serial_number ? enrollee->serial_number : "");
 555 }
 556
 557
 558 static void wpa_supplicant_wps_event_er_enrollee_remove(
 559         struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
 560 {
 561         char uuid_str[100];
 562         uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
 563         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR,
 564                 uuid_str, MAC2STR(enrollee->mac_addr));
 565 }
 566
 567
 568 static void wpa_supplicant_wps_event_er_ap_settings(
 569         struct wpa_supplicant *wpa_s,
 570         struct wps_event_er_ap_settings *ap_settings)
 571 {
 572         char uuid_str[100];
 573         char key_str[65];
 574         const struct wps_credential *cred = ap_settings->cred;
 575
 576         key_str[0] = '\0';
 577         if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
 578                 if (cred->key_len >= 8 && cred->key_len <= 64) {
 579                         os_memcpy(key_str, cred->key, cred->key_len);
 580                         key_str[cred->key_len] = '\0';
 581                 }
 582         }
 583
 584         uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str));
 585         /* Use wpa_msg_ctrl to avoid showing the key in debug log */
 586         wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS
 587                      "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x "
 588                      "key=%s",
 589                      uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len),
 590                      cred->auth_type, cred->encr_type, key_str);
 591 }
 592
 593
 594 static void wpa_supplicant_wps_event_er_set_sel_reg(
 595         struct wpa_supplicant *wpa_s,
 596         struct wps_event_er_set_selected_registrar *ev)
 597 {
 598         char uuid_str[100];
 599
 600         uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str));
 601         switch (ev->state) {
 602         case WPS_ER_SET_SEL_REG_START:
 603                 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
 604                         "uuid=%s state=START sel_reg=%d dev_passwd_id=%u "
 605                         "sel_reg_config_methods=0x%x",
 606                         uuid_str, ev->sel_reg, ev->dev_passwd_id,
 607                         ev->sel_reg_config_methods);
 608                 break;
 609         case WPS_ER_SET_SEL_REG_DONE:
 610                 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
 611                         "uuid=%s state=DONE", uuid_str);
 612                 break;
 613         case WPS_ER_SET_SEL_REG_FAILED:
 614                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG
 615                         "uuid=%s state=FAILED", uuid_str);
 616                 break;
 617         }
 618 }
 619
 620
 621 static void wpa_supplicant_wps_event(void *ctx, enum wps_event event,
 622                                      union wps_event_data *data)
 623 {
 624         struct wpa_supplicant *wpa_s = ctx;
 625         switch (event) {
 626         case WPS_EV_M2D:
 627                 wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d);
 628                 break;
 629         case WPS_EV_FAIL:
 630                 wpa_supplicant_wps_event_fail(wpa_s, &data->fail);
 631                 break;
 632         case WPS_EV_SUCCESS:
 633                 wpa_supplicant_wps_event_success(wpa_s);
 634                 break;
 635         case WPS_EV_PWD_AUTH_FAIL:
 636 #ifdef CONFIG_AP
 637                 if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee)
 638                         wpa_supplicant_ap_pwd_auth_fail(wpa_s);
 639 #endif /* CONFIG_AP */
 640                 break;
 641         case WPS_EV_PBC_OVERLAP:
 642                 break;
 643         case WPS_EV_PBC_TIMEOUT:
 644                 break;
 645         case WPS_EV_ER_AP_ADD:
 646                 wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap);
 647                 break;
 648         case WPS_EV_ER_AP_REMOVE:
 649                 wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap);
 650                 break;
 651         case WPS_EV_ER_ENROLLEE_ADD:
 652                 wpa_supplicant_wps_event_er_enrollee_add(wpa_s,
 653                                                          &data->enrollee);
 654                 break;
 655         case WPS_EV_ER_ENROLLEE_REMOVE:
 656                 wpa_supplicant_wps_event_er_enrollee_remove(wpa_s,
 657                                                             &data->enrollee);
 658                 break;
 659         case WPS_EV_ER_AP_SETTINGS:
 660                 wpa_supplicant_wps_event_er_ap_settings(wpa_s,
 661                                                         &data->ap_settings);
 662                 break;
 663         case WPS_EV_ER_SET_SELECTED_REGISTRAR:
 664                 wpa_supplicant_wps_event_er_set_sel_reg(wpa_s,
 665                                                         &data->set_sel_reg);
 666                 break;
 667         }
 668 }
 669
 670
 671 enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid)
 672 {
 673         if (eap_is_wps_pbc_enrollee(&ssid->eap) ||
 674             eap_is_wps_pin_enrollee(&ssid->eap))
 675                 return WPS_REQ_ENROLLEE;
 676         else
 677                 return WPS_REQ_REGISTRAR;
 678 }
 679
 680
 681 static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
 682 {
 683         int id;
 684         struct wpa_ssid *ssid, *remove_ssid = NULL, *prev_current;
 685
 686         prev_current = wpa_s->current_ssid;
 687
 688         eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
 689
 690         /* Remove any existing WPS network from configuration */
 691         ssid = wpa_s->conf->ssid;
 692         while (ssid) {
 693                 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
 694                         if (ssid == wpa_s->current_ssid) {
 695                                 wpa_s->current_ssid = NULL;
 696                                 if (ssid != NULL)
 697                                         wpas_notify_network_changed(wpa_s);
 698                         }
 699                         id = ssid->id;
 700                         remove_ssid = ssid;
 701                 } else
 702                         id = -1;
 703                 ssid = ssid->next;
 704                 if (id >= 0) {
 705                         if (prev_current == remove_ssid) {
 706                                 wpa_sm_set_config(wpa_s->wpa, NULL);
 707                                 eapol_sm_notify_config(wpa_s->eapol, NULL,
 708                                                        NULL);
 709                         }
 710                         wpas_notify_network_removed(wpa_s, remove_ssid);
 711                         wpa_config_remove_network(wpa_s->conf, id);
 712                 }
 713         }
 714 }
 715
 716
 717 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
 718 {
 719         struct wpa_supplicant *wpa_s = eloop_ctx;
 720         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
 721                 "out");
 722         wpas_clear_wps(wpa_s);
 723 }
 724
 725
 726 static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
 727                                               int registrar, const u8 *bssid)
 728 {
 729         struct wpa_ssid *ssid;
 730
 731         ssid = wpa_config_add_network(wpa_s->conf);
 732         if (ssid == NULL)
 733                 return NULL;
 734         wpas_notify_network_added(wpa_s, ssid);
 735         wpa_config_set_network_defaults(ssid);
 736         ssid->temporary = 1;
 737         if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 ||
 738             wpa_config_set(ssid, "eap", "WSC", 0) < 0 ||
 739             wpa_config_set(ssid, "identity", registrar ?
 740                            "\"" WSC_ID_REGISTRAR "\"" :
 741                            "\"" WSC_ID_ENROLLEE "\"", 0) < 0) {
 742                 wpas_notify_network_removed(wpa_s, ssid);
 743                 wpa_config_remove_network(wpa_s->conf, ssid->id);
 744                 return NULL;
 745         }
 746
 747         if (bssid) {
 748 #ifndef CONFIG_P2P
 749                 struct wpa_bss *bss;
 750                 int count = 0;
 751 #endif /* CONFIG_P2P */
 752
 753                 os_memcpy(ssid->bssid, bssid, ETH_ALEN);
 754                 ssid->bssid_set = 1;
 755
 756                 /*
 757                  * Note: With P2P, the SSID may change at the time the WPS
 758                  * provisioning is started, so better not filter the AP based
 759                  * on the current SSID in the scan results.
 760                  */
 761 #ifndef CONFIG_P2P
 762                 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
 763                         if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0)
 764                                 continue;
 765
 766                         os_free(ssid->ssid);
 767                         ssid->ssid = os_malloc(bss->ssid_len);
 768                         if (ssid->ssid == NULL)
 769                                 break;
 770                         os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
 771                         ssid->ssid_len = bss->ssid_len;
 772                         wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from "
 773                                           "scan results",
 774                                           ssid->ssid, ssid->ssid_len);
 775                         count++;
 776                 }
 777
 778                 if (count > 1) {
 779                         wpa_printf(MSG_DEBUG, "WPS: More than one SSID found "
 780                                    "for the AP; use wildcard");
 781                         os_free(ssid->ssid);
 782                         ssid->ssid = NULL;
 783                         ssid->ssid_len = 0;
 784                 }
 785 #endif /* CONFIG_P2P */
 786         }
 787
 788         return ssid;
 789 }
 790
 791
 792 static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
 793                              struct wpa_ssid *selected)
 794 {
 795         struct wpa_ssid *ssid;
 796
 797         /* Mark all other networks disabled and trigger reassociation */
 798         ssid = wpa_s->conf->ssid;
 799         while (ssid) {
 800                 int was_disabled = ssid->disabled;
 801                 /*
 802                  * In case the network object corresponds to a persistent group
 803                  * then do not send out network disabled signal. In addition,
 804                  * do not change disabled status of persistent network objects
 805                  * from 2 to 1 should we connect to another network.
 806                  */
 807                 if (was_disabled != 2) {
 808                         ssid->disabled = ssid != selected;
 809                         if (was_disabled != ssid->disabled)
 810                                 wpas_notify_network_enabled_changed(wpa_s,
 811                                                                     ssid);
 812                 }
 813                 ssid = ssid->next;
 814         }
 815         wpa_s->disconnected = 0;
 816         wpa_s->reassociate = 1;
 817         wpa_s->scan_runs = 0;
 818         wpa_s->normal_scans = 0;
 819         wpa_s->wps_success = 0;
 820         wpa_s->blacklist_cleared = 0;
 821         wpa_supplicant_req_scan(wpa_s, 0, 0);
 822 }
 823
 824
 825 int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 826                        int p2p_group)
 827 {
 828         struct wpa_ssid *ssid;
 829         wpas_clear_wps(wpa_s);
 830         ssid = wpas_wps_add_network(wpa_s, 0, bssid);
 831         if (ssid == NULL)
 832                 return -1;
 833         ssid->temporary = 1;
 834         ssid->p2p_group = p2p_group;
 835 #ifdef CONFIG_P2P
 836         if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
 837                 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
 838                 if (ssid->ssid) {
 839                         ssid->ssid_len = wpa_s->go_params->ssid_len;
 840                         os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
 841                                   ssid->ssid_len);
 842                         wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
 843                                           "SSID", ssid->ssid, ssid->ssid_len);
 844                 }
 845         }
 846 #endif /* CONFIG_P2P */
 847         wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0);
 848         if (wpa_s->wps_fragment_size)
 849                 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
 850         eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
 851                                wpa_s, NULL);
 852         wpas_wps_reassoc(wpa_s, ssid);
 853         return 0;
 854 }
 855
 856
 857 int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 858                        const char *pin, int p2p_group, u16 dev_pw_id)
 859 {
 860         struct wpa_ssid *ssid;
 861         char val[128];
 862         unsigned int rpin = 0;
 863
 864         wpas_clear_wps(wpa_s);
 865         ssid = wpas_wps_add_network(wpa_s, 0, bssid);
 866         if (ssid == NULL)
 867                 return -1;
 868         ssid->temporary = 1;
 869         ssid->p2p_group = p2p_group;
 870 #ifdef CONFIG_P2P
 871         if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
 872                 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
 873                 if (ssid->ssid) {
 874                         ssid->ssid_len = wpa_s->go_params->ssid_len;
 875                         os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
 876                                   ssid->ssid_len);
 877                         wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
 878                                           "SSID", ssid->ssid, ssid->ssid_len);
 879                 }
 880         }
 881 #endif /* CONFIG_P2P */
 882         if (pin)
 883                 os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u\"",
 884                             pin, dev_pw_id);
 885         else {
 886                 rpin = wps_generate_pin();
 887                 os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u\"",
 888                             rpin, dev_pw_id);
 889         }
 890         wpa_config_set(ssid, "phase1", val, 0);
 891         if (wpa_s->wps_fragment_size)
 892                 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
 893         eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
 894                                wpa_s, NULL);
 895         wpas_wps_reassoc(wpa_s, ssid);
 896         return rpin;
 897 }
 898
 899
 900 /* Cancel the wps pbc/pin requests */
 901 int wpas_wps_cancel(struct wpa_supplicant *wpa_s)
 902 {
 903 #ifdef CONFIG_AP
 904         if (wpa_s->ap_iface) {
 905                 wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode");
 906                 return wpa_supplicant_ap_wps_cancel(wpa_s);
 907         }
 908 #endif /* CONFIG_AP */
 909
 910         if (wpa_s->wpa_state == WPA_SCANNING) {
 911                 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan");
 912                 wpa_supplicant_cancel_scan(wpa_s);
 913                 wpas_clear_wps(wpa_s);
 914         } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
 915                 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - "
 916                            "deauthenticate");
 917                 wpa_supplicant_deauthenticate(wpa_s,
 918                                               WLAN_REASON_DEAUTH_LEAVING);
 919                 wpas_clear_wps(wpa_s);
 920         }
 921
 922         return 0;
 923 }
 924
 925
 926 #ifdef CONFIG_WPS_OOB
 927 int wpas_wps_start_oob(struct wpa_supplicant *wpa_s, char *device_type,
 928                        char *path, char *method, char *name)
 929 {
 930         struct wps_context *wps = wpa_s->wps;
 931         struct oob_device_data *oob_dev;
 932
 933         oob_dev = wps_get_oob_device(device_type);
 934         if (oob_dev == NULL)
 935                 return -1;
 936         oob_dev->device_path = path;
 937         oob_dev->device_name = name;
 938         wps->oob_conf.oob_method = wps_get_oob_method(method);
 939
 940         if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E) {
 941                 /*
 942                  * Use pre-configured DH keys in order to be able to write the
 943                  * key hash into the OOB file.
 944                  */
 945                 wpabuf_free(wps->dh_pubkey);
 946                 wpabuf_free(wps->dh_privkey);
 947                 wps->dh_privkey = NULL;
 948                 wps->dh_pubkey = NULL;
 949                 dh5_free(wps->dh_ctx);
 950                 wps->dh_ctx = dh5_init(&wps->dh_privkey, &wps->dh_pubkey);
 951                 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
 952                 if (wps->dh_ctx == NULL || wps->dh_pubkey == NULL) {
 953                         wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
 954                                    "Diffie-Hellman handshake");
 955                         return -1;
 956                 }
 957         }
 958
 959         if (wps->oob_conf.oob_method == OOB_METHOD_CRED)
 960                 wpas_clear_wps(wpa_s);
 961
 962         if (wps_process_oob(wps, oob_dev, 0) < 0)
 963                 return -1;
 964
 965         if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
 966              wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
 967             wpas_wps_start_pin(wpa_s, NULL,
 968                                wpabuf_head(wps->oob_conf.dev_password), 0,
 969                                DEV_PW_DEFAULT) < 0)
 970                         return -1;
 971
 972         return 0;
 973 }
 974 #endif /* CONFIG_WPS_OOB */
 975
 976
 977 int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
 978                        const char *pin, struct wps_new_ap_settings *settings)
 979 {
 980         struct wpa_ssid *ssid;
 981         char val[200];
 982         char *pos, *end;
 983         int res;
 984
 985         if (!pin)
 986                 return -1;
 987         wpas_clear_wps(wpa_s);
 988         ssid = wpas_wps_add_network(wpa_s, 1, bssid);
 989         if (ssid == NULL)
 990                 return -1;
 991         ssid->temporary = 1;
 992         pos = val;
 993         end = pos + sizeof(val);
 994         res = os_snprintf(pos, end - pos, "\"pin=%s", pin);
 995         if (res < 0 || res >= end - pos)
 996                 return -1;
 997         pos += res;
 998         if (settings) {
 999                 res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s "
1000                                   "new_encr=%s new_key=%s",
1001                                   settings->ssid_hex, settings->auth,
1002                                   settings->encr, settings->key_hex);
1003                 if (res < 0 || res >= end - pos)
1004                         return -1;
1005                 pos += res;
1006         }
1007         res = os_snprintf(pos, end - pos, "\"");
1008         if (res < 0 || res >= end - pos)
1009                 return -1;
1010         wpa_config_set(ssid, "phase1", val, 0);
1011         if (wpa_s->wps_fragment_size)
1012                 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
1013         eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1014                                wpa_s, NULL);
1015         wpas_wps_reassoc(wpa_s, ssid);
1016         return 0;
1017 }
1018
1019
1020 static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
1021                                size_t psk_len)
1022 {
1023         wpa_printf(MSG_DEBUG, "WPS: Received new WPA/WPA2-PSK from WPS for "
1024                    "STA " MACSTR, MAC2STR(mac_addr));
1025         wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
1026
1027         /* TODO */
1028
1029         return 0;
1030 }
1031
1032
1033 static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
1034                                    const struct wps_device_data *dev)
1035 {
1036         char uuid[40], txt[400];
1037         int len;
1038         char devtype[WPS_DEV_TYPE_BUFSIZE];
1039         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
1040                 return;
1041         wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid);
1042         len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR
1043                           " [%s|%s|%s|%s|%s|%s]",
1044                           uuid, MAC2STR(dev->mac_addr), dev->device_name,
1045                           dev->manufacturer, dev->model_name,
1046                           dev->model_number, dev->serial_number,
1047                           wps_dev_type_bin2str(dev->pri_dev_type, devtype,
1048                                                sizeof(devtype)));
1049         if (len > 0 && len < (int) sizeof(txt))
1050                 wpa_printf(MSG_INFO, "%s", txt);
1051 }
1052
1053
1054 static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id,
1055                                     u16 sel_reg_config_methods)
1056 {
1057 #ifdef CONFIG_WPS_ER
1058         struct wpa_supplicant *wpa_s = ctx;
1059
1060         if (wpa_s->wps_er == NULL)
1061                 return;
1062         wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d "
1063                    "dev_password_id=%u sel_reg_config_methods=0x%x",
1064                    sel_reg, dev_passwd_id, sel_reg_config_methods);
1065         wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id,
1066                            sel_reg_config_methods);
1067 #endif /* CONFIG_WPS_ER */
1068 }
1069
1070
1071 static u16 wps_fix_config_methods(u16 config_methods)
1072 {
1073 #ifdef CONFIG_WPS2
1074         if ((config_methods &
1075              (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
1076               WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
1077                 wpa_printf(MSG_INFO, "WPS: Converting display to "
1078                            "virtual_display for WPS 2.0 compliance");
1079                 config_methods |= WPS_CONFIG_VIRT_DISPLAY;
1080         }
1081         if ((config_methods &
1082              (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
1083               WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
1084                 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
1085                            "virtual_push_button for WPS 2.0 compliance");
1086                 config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
1087         }
1088 #endif /* CONFIG_WPS2 */
1089
1090         return config_methods;
1091 }
1092
1093
1094 static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s,
1095                               struct wps_context *wps)
1096 {
1097         wpa_printf(MSG_DEBUG, "WPS: Set UUID for interface %s", wpa_s->ifname);
1098         if (is_nil_uuid(wpa_s->conf->uuid)) {
1099                 struct wpa_supplicant *first;
1100                 first = wpa_s->global->ifaces;
1101                 while (first && first->next)
1102                         first = first->next;
1103                 if (first && first != wpa_s) {
1104                         os_memcpy(wps->uuid, wpa_s->global->ifaces->wps->uuid,
1105                                   WPS_UUID_LEN);
1106                         wpa_hexdump(MSG_DEBUG, "WPS: UUID from the first "
1107                                     "interface", wps->uuid, WPS_UUID_LEN);
1108                 } else {
1109                         uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
1110                         wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
1111                                     "address", wps->uuid, WPS_UUID_LEN);
1112                 }
1113         } else {
1114                 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
1115                 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on configuration",
1116                             wps->uuid, WPS_UUID_LEN);
1117         }
1118 }
1119
1120
1121 int wpas_wps_init(struct wpa_supplicant *wpa_s)
1122 {
1123         struct wps_context *wps;
1124         struct wps_registrar_config rcfg;
1125         struct hostapd_hw_modes *modes;
1126         u16 m;
1127
1128         wps = os_zalloc(sizeof(*wps));
1129         if (wps == NULL)
1130                 return -1;
1131
1132         wps->cred_cb = wpa_supplicant_wps_cred;
1133         wps->event_cb = wpa_supplicant_wps_event;
1134         wps->cb_ctx = wpa_s;
1135
1136         wps->dev.device_name = wpa_s->conf->device_name;
1137         wps->dev.manufacturer = wpa_s->conf->manufacturer;
1138         wps->dev.model_name = wpa_s->conf->model_name;
1139         wps->dev.model_number = wpa_s->conf->model_number;
1140         wps->dev.serial_number = wpa_s->conf->serial_number;
1141         wps->config_methods =
1142                 wps_config_methods_str2bin(wpa_s->conf->config_methods);
1143         if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1144             (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1145                 wpa_printf(MSG_ERROR, "WPS: Both Label and Display config "
1146                            "methods are not allowed at the same time");
1147                 os_free(wps);
1148                 return -1;
1149         }
1150         wps->config_methods = wps_fix_config_methods(wps->config_methods);
1151         wps->dev.config_methods = wps->config_methods;
1152         os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1153                   WPS_DEV_TYPE_LEN);
1154
1155         wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1156         os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1157                   WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types);
1158
1159         wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1160         modes = wpa_s->hw.modes;
1161         if (modes) {
1162                 for (m = 0; m < wpa_s->hw.num_modes; m++) {
1163                         if (modes[m].mode == HOSTAPD_MODE_IEEE80211B ||
1164                             modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1165                                 wps->dev.rf_bands |= WPS_RF_24GHZ;
1166                         else if (modes[m].mode == HOSTAPD_MODE_IEEE80211A)
1167                                 wps->dev.rf_bands |= WPS_RF_50GHZ;
1168                 }
1169         }
1170         if (wps->dev.rf_bands == 0) {
1171                 /*
1172                  * Default to claiming support for both bands if the driver
1173                  * does not provide support for fetching supported bands.
1174                  */
1175                 wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ;
1176         }
1177         os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
1178         wpas_wps_set_uuid(wpa_s, wps);
1179
1180         wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
1181         wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
1182
1183         os_memset(&rcfg, 0, sizeof(rcfg));
1184         rcfg.new_psk_cb = wpas_wps_new_psk_cb;
1185         rcfg.pin_needed_cb = wpas_wps_pin_needed_cb;
1186         rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb;
1187         rcfg.cb_ctx = wpa_s;
1188
1189         wps->registrar = wps_registrar_init(wps, &rcfg);
1190         if (wps->registrar == NULL) {
1191                 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar");
1192                 os_free(wps);
1193                 return -1;
1194         }
1195
1196         wpa_s->wps = wps;
1197
1198         return 0;
1199 }
1200
1201
1202 void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
1203 {
1204         eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
1205
1206         if (wpa_s->wps == NULL)
1207                 return;
1208
1209 #ifdef CONFIG_WPS_ER
1210         wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1211         wpa_s->wps_er = NULL;
1212 #endif /* CONFIG_WPS_ER */
1213
1214         wps_registrar_deinit(wpa_s->wps->registrar);
1215         wpabuf_free(wpa_s->wps->dh_pubkey);
1216         wpabuf_free(wpa_s->wps->dh_privkey);
1217         wpabuf_free(wpa_s->wps->oob_conf.pubkey_hash);
1218         wpabuf_free(wpa_s->wps->oob_conf.dev_password);
1219         os_free(wpa_s->wps->network_key);
1220         os_free(wpa_s->wps);
1221         wpa_s->wps = NULL;
1222 }
1223
1224
1225 int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
1226                             struct wpa_ssid *ssid, struct wpa_scan_res *bss)
1227 {
1228         struct wpabuf *wps_ie;
1229
1230         if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
1231                 return -1;
1232
1233         wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1234         if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1235                 if (!wps_ie) {
1236                         wpa_printf(MSG_DEBUG, "   skip - non-WPS AP");
1237                         return 0;
1238                 }
1239
1240                 if (!wps_is_selected_pbc_registrar(wps_ie)) {
1241                         wpa_printf(MSG_DEBUG, "   skip - WPS AP "
1242                                    "without active PBC Registrar");
1243                         wpabuf_free(wps_ie);
1244                         return 0;
1245                 }
1246
1247                 /* TODO: overlap detection */
1248                 wpa_printf(MSG_DEBUG, "   selected based on WPS IE "
1249                            "(Active PBC)");
1250                 wpabuf_free(wps_ie);
1251                 return 1;
1252         }
1253
1254         if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1255                 if (!wps_ie) {
1256                         wpa_printf(MSG_DEBUG, "   skip - non-WPS AP");
1257                         return 0;
1258                 }
1259
1260                 /*
1261                  * Start with WPS APs that advertise our address as an
1262                  * authorized MAC (v2.0) or active PIN Registrar (v1.0) and
1263                  * allow any WPS AP after couple of scans since some APs do not
1264                  * set Selected Registrar attribute properly when using
1265                  * external Registrar.
1266                  */
1267                 if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) {
1268                         if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG) {
1269                                 wpa_printf(MSG_DEBUG, "   skip - WPS AP "
1270                                            "without active PIN Registrar");
1271                                 wpabuf_free(wps_ie);
1272                                 return 0;
1273                         }
1274                         wpa_printf(MSG_DEBUG, "   selected based on WPS IE");
1275                 } else {
1276                         wpa_printf(MSG_DEBUG, "   selected based on WPS IE "
1277                                    "(Authorized MAC or Active PIN)");
1278                 }
1279                 wpabuf_free(wps_ie);
1280                 return 1;
1281         }
1282
1283         if (wps_ie) {
1284                 wpa_printf(MSG_DEBUG, "   selected based on WPS IE");
1285                 wpabuf_free(wps_ie);
1286                 return 1;
1287         }
1288
1289         return -1;
1290 }
1291
1292
1293 int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
1294                               struct wpa_ssid *ssid,
1295                               struct wpa_scan_res *bss)
1296 {
1297         struct wpabuf *wps_ie = NULL;
1298         int ret = 0;
1299
1300         if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1301                 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1302                 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) {
1303                         /* allow wildcard SSID for WPS PBC */
1304                         ret = 1;
1305                 }
1306         } else if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1307                 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1308                 if (wps_ie &&
1309                     (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) ||
1310                      wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) {
1311                         /* allow wildcard SSID for WPS PIN */
1312                         ret = 1;
1313                 }
1314         }
1315
1316         if (!ret && ssid->bssid_set &&
1317             os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) {
1318                 /* allow wildcard SSID due to hardcoded BSSID match */
1319                 ret = 1;
1320         }
1321
1322 #ifdef CONFIG_WPS_STRICT
1323         if (wps_ie) {
1324                 if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len >
1325                                                    0, bss->bssid) < 0)
1326                         ret = 0;
1327                 if (bss->beacon_ie_len) {
1328                         struct wpabuf *bcn_wps;
1329                         bcn_wps = wpa_scan_get_vendor_ie_multi_beacon(
1330                                 bss, WPS_IE_VENDOR_TYPE);
1331                         if (bcn_wps == NULL) {
1332                                 wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE "
1333                                            "missing from AP Beacon");
1334                                 ret = 0;
1335                         } else {
1336                                 if (wps_validate_beacon(wps_ie) < 0)
1337                                         ret = 0;
1338                                 wpabuf_free(bcn_wps);
1339                         }
1340                 }
1341         }
1342 #endif /* CONFIG_WPS_STRICT */
1343
1344         wpabuf_free(wps_ie);
1345
1346         return ret;
1347 }
1348
1349
1350 int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
1351                               struct wpa_bss *selected, struct wpa_ssid *ssid)
1352 {
1353         const u8 *sel_uuid, *uuid;
1354         struct wpabuf *wps_ie;
1355         int ret = 0;
1356         struct wpa_bss *bss;
1357
1358         if (!eap_is_wps_pbc_enrollee(&ssid->eap))
1359                 return 0;
1360
1361         wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is "
1362                    "present in scan results; selected BSSID " MACSTR,
1363                    MAC2STR(selected->bssid));
1364
1365         /* Make sure that only one AP is in active PBC mode */
1366         wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE);
1367         if (wps_ie) {
1368                 sel_uuid = wps_get_uuid_e(wps_ie);
1369                 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS",
1370                             sel_uuid, UUID_LEN);
1371         } else {
1372                 wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include "
1373                            "WPS IE?!");
1374                 sel_uuid = NULL;
1375         }
1376
1377         dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1378                 struct wpabuf *ie;
1379                 if (bss == selected)
1380                         continue;
1381                 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1382                 if (!ie)
1383                         continue;
1384                 if (!wps_is_selected_pbc_registrar(ie)) {
1385                         wpabuf_free(ie);
1386                         continue;
1387                 }
1388                 wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: "
1389                            MACSTR, MAC2STR(bss->bssid));
1390                 uuid = wps_get_uuid_e(ie);
1391                 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS",
1392                             uuid, UUID_LEN);
1393                 if (sel_uuid == NULL || uuid == NULL ||
1394                     os_memcmp(sel_uuid, uuid, UUID_LEN) != 0) {
1395                         ret = 1; /* PBC overlap */
1396                         wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: "
1397                                 MACSTR " and " MACSTR,
1398                                 MAC2STR(selected->bssid),
1399                                 MAC2STR(bss->bssid));
1400                         wpabuf_free(ie);
1401                         break;
1402                 }
1403
1404                 /* TODO: verify that this is reasonable dual-band situation */
1405
1406                 wpabuf_free(ie);
1407         }
1408
1409         wpabuf_free(wps_ie);
1410
1411         return ret;
1412 }
1413
1414
1415 void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
1416 {
1417         struct wpa_bss *bss;
1418         unsigned int pbc = 0, auth = 0, pin = 0, wps = 0;
1419
1420         if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED)
1421                 return;
1422
1423         dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1424                 struct wpabuf *ie;
1425                 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1426                 if (!ie)
1427                         continue;
1428                 if (wps_is_selected_pbc_registrar(ie))
1429                         pbc++;
1430                 else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0))
1431                         auth++;
1432                 else if (wps_is_selected_pin_registrar(ie))
1433                         pin++;
1434                 else
1435                         wps++;
1436                 wpabuf_free(ie);
1437         }
1438
1439         if (pbc)
1440                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC);
1441         else if (auth)
1442                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH);
1443         else if (pin)
1444                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN);
1445         else if (wps)
1446                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE);
1447 }
1448
1449
1450 int wpas_wps_searching(struct wpa_supplicant *wpa_s)
1451 {
1452         struct wpa_ssid *ssid;
1453
1454         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1455                 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled)
1456                         return 1;
1457         }
1458
1459         return 0;
1460 }
1461
1462
1463 int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
1464                               char *end)
1465 {
1466         struct wpabuf *wps_ie;
1467         int ret;
1468
1469         wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA);
1470         if (wps_ie == NULL)
1471                 return 0;
1472
1473         ret = wps_attr_text(wps_ie, buf, end);
1474         wpabuf_free(wps_ie);
1475         return ret;
1476 }
1477
1478
1479 int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter)
1480 {
1481 #ifdef CONFIG_WPS_ER
1482         if (wpa_s->wps_er) {
1483                 wps_er_refresh(wpa_s->wps_er);
1484                 return 0;
1485         }
1486         wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter);
1487         if (wpa_s->wps_er == NULL)
1488                 return -1;
1489         return 0;
1490 #else /* CONFIG_WPS_ER */
1491         return 0;
1492 #endif /* CONFIG_WPS_ER */
1493 }
1494
1495
1496 int wpas_wps_er_stop(struct wpa_supplicant *wpa_s)
1497 {
1498 #ifdef CONFIG_WPS_ER
1499         wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1500         wpa_s->wps_er = NULL;
1501 #endif /* CONFIG_WPS_ER */
1502         return 0;
1503 }
1504
1505
1506 #ifdef CONFIG_WPS_ER
1507 int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr,
1508                         const char *uuid, const char *pin)
1509 {
1510         u8 u[UUID_LEN];
1511         int any = 0;
1512
1513         if (os_strcmp(uuid, "any") == 0)
1514                 any = 1;
1515         else if (uuid_str2bin(uuid, u))
1516                 return -1;
1517         return wps_registrar_add_pin(wpa_s->wps->registrar, addr,
1518                                      any ? NULL : u,
1519                                      (const u8 *) pin, os_strlen(pin), 300);
1520 }
1521
1522
1523 int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid)
1524 {
1525         u8 u[UUID_LEN];
1526
1527         if (uuid_str2bin(uuid, u))
1528                 return -1;
1529         return wps_er_pbc(wpa_s->wps_er, u);
1530 }
1531
1532
1533 int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid,
1534                       const char *pin)
1535 {
1536         u8 u[UUID_LEN];
1537
1538         if (uuid_str2bin(uuid, u))
1539                 return -1;
1540         return wps_er_learn(wpa_s->wps_er, u, (const u8 *) pin,
1541                             os_strlen(pin));
1542 }
1543
1544
1545 int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid,
1546                            int id)
1547 {
1548         u8 u[UUID_LEN];
1549         struct wpa_ssid *ssid;
1550         struct wps_credential cred;
1551
1552         if (uuid_str2bin(uuid, u))
1553                 return -1;
1554         ssid = wpa_config_get_network(wpa_s->conf, id);
1555         if (ssid == NULL || ssid->ssid == NULL)
1556                 return -1;
1557
1558         os_memset(&cred, 0, sizeof(cred));
1559         if (ssid->ssid_len > 32)
1560                 return -1;
1561         os_memcpy(cred.ssid, ssid->ssid, ssid->ssid_len);
1562         cred.ssid_len = ssid->ssid_len;
1563         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
1564                 cred.auth_type = (ssid->proto & WPA_PROTO_RSN) ?
1565                         WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK;
1566                 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
1567                         cred.encr_type = WPS_ENCR_AES;
1568                 else
1569                         cred.encr_type = WPS_ENCR_TKIP;
1570                 if (ssid->passphrase) {
1571                         cred.key_len = os_strlen(ssid->passphrase);
1572                         if (cred.key_len >= 64)
1573                                 return -1;
1574                         os_memcpy(cred.key, ssid->passphrase, cred.key_len);
1575                 } else if (ssid->psk_set) {
1576                         cred.key_len = 32;
1577                         os_memcpy(cred.key, ssid->psk, 32);
1578                 } else
1579                         return -1;
1580         } else {
1581                 cred.auth_type = WPS_AUTH_OPEN;
1582                 cred.encr_type = WPS_ENCR_NONE;
1583         }
1584         return wps_er_set_config(wpa_s->wps_er, u, &cred);
1585 }
1586
1587
1588 int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid,
1589                        const char *pin, struct wps_new_ap_settings *settings)
1590 {
1591         u8 u[UUID_LEN];
1592         struct wps_credential cred;
1593         size_t len;
1594
1595         if (uuid_str2bin(uuid, u))
1596                 return -1;
1597         if (settings->ssid_hex == NULL || settings->auth == NULL ||
1598             settings->encr == NULL || settings->key_hex == NULL)
1599                 return -1;
1600
1601         os_memset(&cred, 0, sizeof(cred));
1602         len = os_strlen(settings->ssid_hex);
1603         if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
1604             hexstr2bin(settings->ssid_hex, cred.ssid, len / 2))
1605                 return -1;
1606         cred.ssid_len = len / 2;
1607
1608         len = os_strlen(settings->key_hex);
1609         if ((len & 1) || len > 2 * sizeof(cred.key) ||
1610             hexstr2bin(settings->key_hex, cred.key, len / 2))
1611                 return -1;
1612         cred.key_len = len / 2;
1613
1614         if (os_strcmp(settings->auth, "OPEN") == 0)
1615                 cred.auth_type = WPS_AUTH_OPEN;
1616         else if (os_strcmp(settings->auth, "WPAPSK") == 0)
1617                 cred.auth_type = WPS_AUTH_WPAPSK;
1618         else if (os_strcmp(settings->auth, "WPA2PSK") == 0)
1619                 cred.auth_type = WPS_AUTH_WPA2PSK;
1620         else
1621                 return -1;
1622
1623         if (os_strcmp(settings->encr, "NONE") == 0)
1624                 cred.encr_type = WPS_ENCR_NONE;
1625         else if (os_strcmp(settings->encr, "WEP") == 0)
1626                 cred.encr_type = WPS_ENCR_WEP;
1627         else if (os_strcmp(settings->encr, "TKIP") == 0)
1628                 cred.encr_type = WPS_ENCR_TKIP;
1629         else if (os_strcmp(settings->encr, "CCMP") == 0)
1630                 cred.encr_type = WPS_ENCR_AES;
1631         else
1632                 return -1;
1633
1634         return wps_er_config(wpa_s->wps_er, u, (const u8 *) pin,
1635                              os_strlen(pin), &cred);
1636 }
1637
1638
1639 static int callbacks_pending = 0;
1640
1641 static void wpas_wps_terminate_cb(void *ctx)
1642 {
1643         wpa_printf(MSG_DEBUG, "WPS ER: Terminated");
1644         if (--callbacks_pending <= 0)
1645                 eloop_terminate();
1646 }
1647 #endif /* CONFIG_WPS_ER */
1648
1649
1650 int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s)
1651 {
1652 #ifdef CONFIG_WPS_ER
1653         if (wpa_s->wps_er) {
1654                 callbacks_pending++;
1655                 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s);
1656                 wpa_s->wps_er = NULL;
1657                 return 1;
1658         }
1659 #endif /* CONFIG_WPS_ER */
1660         return 0;
1661 }
1662
1663
1664 int wpas_wps_in_progress(struct wpa_supplicant *wpa_s)
1665 {
1666         struct wpa_ssid *ssid;
1667
1668         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1669                 if (!ssid->disabled && ssid->key_mgmt == WPA_KEY_MGMT_WPS)
1670                         return 1;
1671         }
1672
1673         return 0;
1674 }
1675
1676
1677 void wpas_wps_update_config(struct wpa_supplicant *wpa_s)
1678 {
1679         struct wps_context *wps = wpa_s->wps;
1680
1681         if (wps == NULL)
1682                 return;
1683
1684         if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) {
1685                 wps->config_methods = wps_config_methods_str2bin(
1686                         wpa_s->conf->config_methods);
1687                 if ((wps->config_methods &
1688                      (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1689                     (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1690                         wpa_printf(MSG_ERROR, "WPS: Both Label and Display "
1691                                    "config methods are not allowed at the "
1692                                    "same time");
1693                         wps->config_methods &= ~WPS_CONFIG_LABEL;
1694                 }
1695         }
1696         wps->config_methods = wps_fix_config_methods(wps->config_methods);
1697
1698         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
1699                 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1700                           WPS_DEV_TYPE_LEN);
1701
1702         if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) {
1703                 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1704                 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1705                           wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN);
1706         }
1707
1708         if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION)
1709                 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1710
1711         if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID)
1712                 wpas_wps_set_uuid(wpa_s, wps);
1713
1714         if (wpa_s->conf->changed_parameters &
1715             (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) {
1716                 /* Update pointers to make sure they refer current values */
1717                 wps->dev.device_name = wpa_s->conf->device_name;
1718                 wps->dev.manufacturer = wpa_s->conf->manufacturer;
1719                 wps->dev.model_name = wpa_s->conf->model_name;
1720                 wps->dev.model_number = wpa_s->conf->model_number;
1721                 wps->dev.serial_number = wpa_s->conf->serial_number;
1722         }
1723 }