wpa_supplicant/wps_supplicant.c

   1 /*
   2  * wpa_supplicant / WPS integration
   3  * Copyright (c) 2008-2010, Jouni Malinen <j@w1.fi>
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "includes.h"
  10
  11 #include "common.h"
  12 #include "eloop.h"
  13 #include "uuid.h"
  14 #include "crypto/dh_group5.h"
  15 #include "common/ieee802_11_defs.h"
  16 #include "common/ieee802_11_common.h"
  17 #include "common/wpa_common.h"
  18 #include "common/wpa_ctrl.h"
  19 #include "eap_common/eap_wsc_common.h"
  20 #include "eap_peer/eap.h"
  21 #include "eapol_supp/eapol_supp_sm.h"
  22 #include "rsn_supp/wpa.h"
  23 #include "config.h"
  24 #include "wpa_supplicant_i.h"
  25 #include "driver_i.h"
  26 #include "notify.h"
  27 #include "blacklist.h"
  28 #include "bss.h"
  29 #include "scan.h"
  30 #include "ap.h"
  31 #include "p2p/p2p.h"
  32 #include "p2p_supplicant.h"
  33 #include "wps_supplicant.h"
  34
  35
  36 #ifndef WPS_PIN_SCAN_IGNORE_SEL_REG
  37 #define WPS_PIN_SCAN_IGNORE_SEL_REG 3
  38 #endif /* WPS_PIN_SCAN_IGNORE_SEL_REG */
  39
  40 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx);
  41 static void wpas_clear_wps(struct wpa_supplicant *wpa_s);
  42
  43
  44 int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s)
  45 {
  46         if (!wpa_s->wps_success &&
  47             wpa_s->current_ssid &&
  48             eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
  49                 const u8 *bssid = wpa_s->bssid;
  50                 if (is_zero_ether_addr(bssid))
  51                         bssid = wpa_s->pending_bssid;
  52
  53                 wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR
  54                            " did not succeed - continue trying to find "
  55                            "suitable AP", MAC2STR(bssid));
  56                 wpa_blacklist_add(wpa_s, bssid);
  57
  58                 wpa_supplicant_deauthenticate(wpa_s,
  59                                               WLAN_REASON_DEAUTH_LEAVING);
  60                 wpa_s->reassociate = 1;
  61                 wpa_supplicant_req_scan(wpa_s,
  62                                         wpa_s->blacklist_cleared ? 5 : 0, 0);
  63                 wpa_s->blacklist_cleared = 0;
  64                 return 1;
  65         }
  66
  67         eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
  68         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && !wpa_s->wps_success)
  69                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL);
  70
  71         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid &&
  72             !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
  73                 int disabled = wpa_s->current_ssid->disabled;
  74                 unsigned int freq = wpa_s->assoc_freq;
  75                 wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - "
  76                            "try to associate with the received credential "
  77                            "(freq=%u)", freq);
  78                 wpa_supplicant_deauthenticate(wpa_s,
  79                                               WLAN_REASON_DEAUTH_LEAVING);
  80                 if (disabled) {
  81                         wpa_printf(MSG_DEBUG, "WPS: Current network is "
  82                                    "disabled - wait for user to enable");
  83                         return 1;
  84                 }
  85                 wpa_s->after_wps = 5;
  86                 wpa_s->wps_freq = freq;
  87                 wpa_s->normal_scans = 0;
  88                 wpa_s->reassociate = 1;
  89                 wpa_supplicant_req_scan(wpa_s, 0, 0);
  90                 return 1;
  91         }
  92
  93         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) {
  94                 wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting "
  95                            "for external credential processing");
  96                 wpas_clear_wps(wpa_s);
  97                 wpa_supplicant_deauthenticate(wpa_s,
  98                                               WLAN_REASON_DEAUTH_LEAVING);
  99                 return 1;
 100         }
 101
 102         return 0;
 103 }
 104
 105
 106 static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s,
 107                                          struct wpa_ssid *ssid,
 108                                          const struct wps_credential *cred)
 109 {
 110         struct wpa_driver_capa capa;
 111         struct wpa_bss *bss;
 112         const u8 *ie;
 113         struct wpa_ie_data adv;
 114         int wpa2 = 0, ccmp = 0;
 115
 116         /*
 117          * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in
 118          * case they are configured for mixed mode operation (WPA+WPA2 and
 119          * TKIP+CCMP). Try to use scan results to figure out whether the AP
 120          * actually supports stronger security and select that if the client
 121          * has support for it, too.
 122          */
 123
 124         if (wpa_drv_get_capa(wpa_s, &capa))
 125                 return; /* Unknown what driver supports */
 126
 127         if (ssid->ssid == NULL)
 128                 return;
 129         bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len);
 130         if (bss == NULL) {
 131                 wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS "
 132                            "table - use credential as-is");
 133                 return;
 134         }
 135
 136         wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table");
 137
 138         ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
 139         if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) {
 140                 wpa2 = 1;
 141                 if (adv.pairwise_cipher & WPA_CIPHER_CCMP)
 142                         ccmp = 1;
 143         } else {
 144                 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 145                 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 &&
 146                     adv.pairwise_cipher & WPA_CIPHER_CCMP)
 147                         ccmp = 1;
 148         }
 149
 150         if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) &&
 151             (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) {
 152                 /*
 153                  * TODO: This could be the initial AP configuration and the
 154                  * Beacon contents could change shortly. Should request a new
 155                  * scan and delay addition of the network until the updated
 156                  * scan results are available.
 157                  */
 158                 wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA "
 159                            "support - use credential as-is");
 160                 return;
 161         }
 162
 163         if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
 164             (ssid->pairwise_cipher & WPA_CIPHER_TKIP) &&
 165             (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
 166                 wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential "
 167                            "based on scan results");
 168                 if (wpa_s->conf->ap_scan == 1)
 169                         ssid->pairwise_cipher |= WPA_CIPHER_CCMP;
 170                 else
 171                         ssid->pairwise_cipher = WPA_CIPHER_CCMP;
 172         }
 173
 174         if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) &&
 175             (ssid->proto & WPA_PROTO_WPA) &&
 176             (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) {
 177                 wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential "
 178                            "based on scan results");
 179                 if (wpa_s->conf->ap_scan == 1)
 180                         ssid->proto |= WPA_PROTO_RSN;
 181                 else
 182                         ssid->proto = WPA_PROTO_RSN;
 183         }
 184 }
 185
 186
 187 static int wpa_supplicant_wps_cred(void *ctx,
 188                                    const struct wps_credential *cred)
 189 {
 190         struct wpa_supplicant *wpa_s = ctx;
 191         struct wpa_ssid *ssid = wpa_s->current_ssid;
 192         u8 key_idx = 0;
 193         u16 auth_type;
 194 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
 195         int registrar = 0;
 196 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
 197
 198         if ((wpa_s->conf->wps_cred_processing == 1 ||
 199              wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) {
 200                 size_t blen = cred->cred_attr_len * 2 + 1;
 201                 char *buf = os_malloc(blen);
 202                 if (buf) {
 203                         wpa_snprintf_hex(buf, blen,
 204                                          cred->cred_attr, cred->cred_attr_len);
 205                         wpa_msg(wpa_s, MSG_INFO, "%s%s",
 206                                 WPS_EVENT_CRED_RECEIVED, buf);
 207                         os_free(buf);
 208                 }
 209
 210                 wpas_notify_wps_credential(wpa_s, cred);
 211         } else
 212                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED);
 213
 214         wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
 215                         cred->cred_attr, cred->cred_attr_len);
 216
 217         if (wpa_s->conf->wps_cred_processing == 1)
 218                 return 0;
 219
 220         wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
 221         wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
 222                    cred->auth_type);
 223         wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
 224         wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
 225         wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
 226                         cred->key, cred->key_len);
 227         wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
 228                    MAC2STR(cred->mac_addr));
 229
 230         auth_type = cred->auth_type;
 231         if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
 232                 wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode "
 233                            "auth_type into WPA2PSK");
 234                 auth_type = WPS_AUTH_WPA2PSK;
 235         }
 236
 237         if (auth_type != WPS_AUTH_OPEN &&
 238             auth_type != WPS_AUTH_SHARED &&
 239             auth_type != WPS_AUTH_WPAPSK &&
 240             auth_type != WPS_AUTH_WPA2PSK) {
 241                 wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
 242                            "unsupported authentication type 0x%x",
 243                            auth_type);
 244                 return 0;
 245         }
 246
 247         if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
 248                 wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based "
 249                            "on the received credential");
 250 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
 251                 if (ssid->eap.identity &&
 252                     ssid->eap.identity_len == WSC_ID_REGISTRAR_LEN &&
 253                     os_memcmp(ssid->eap.identity, WSC_ID_REGISTRAR,
 254                               WSC_ID_REGISTRAR_LEN) == 0)
 255                         registrar = 1;
 256 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
 257                 os_free(ssid->eap.identity);
 258                 ssid->eap.identity = NULL;
 259                 ssid->eap.identity_len = 0;
 260                 os_free(ssid->eap.phase1);
 261                 ssid->eap.phase1 = NULL;
 262                 os_free(ssid->eap.eap_methods);
 263                 ssid->eap.eap_methods = NULL;
 264                 if (!ssid->p2p_group)
 265                         ssid->temporary = 0;
 266         } else {
 267                 wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the "
 268                            "received credential");
 269                 ssid = wpa_config_add_network(wpa_s->conf);
 270                 if (ssid == NULL)
 271                         return -1;
 272                 wpas_notify_network_added(wpa_s, ssid);
 273         }
 274
 275         wpa_config_set_network_defaults(ssid);
 276
 277         os_free(ssid->ssid);
 278         ssid->ssid = os_malloc(cred->ssid_len);
 279         if (ssid->ssid) {
 280                 os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len);
 281                 ssid->ssid_len = cred->ssid_len;
 282         }
 283
 284         switch (cred->encr_type) {
 285         case WPS_ENCR_NONE:
 286                 break;
 287         case WPS_ENCR_WEP:
 288                 if (cred->key_len <= 0)
 289                         break;
 290                 if (cred->key_len != 5 && cred->key_len != 13 &&
 291                     cred->key_len != 10 && cred->key_len != 26) {
 292                         wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key length "
 293                                    "%lu", (unsigned long) cred->key_len);
 294                         return -1;
 295                 }
 296                 if (cred->key_idx > NUM_WEP_KEYS) {
 297                         wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key index %d",
 298                                    cred->key_idx);
 299                         return -1;
 300                 }
 301                 if (cred->key_idx)
 302                         key_idx = cred->key_idx - 1;
 303                 if (cred->key_len == 10 || cred->key_len == 26) {
 304                         if (hexstr2bin((char *) cred->key,
 305                                        ssid->wep_key[key_idx],
 306                                        cred->key_len / 2) < 0) {
 307                                 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key "
 308                                            "%d", key_idx);
 309                                 return -1;
 310                         }
 311                         ssid->wep_key_len[key_idx] = cred->key_len / 2;
 312                 } else {
 313                         os_memcpy(ssid->wep_key[key_idx], cred->key,
 314                                   cred->key_len);
 315                         ssid->wep_key_len[key_idx] = cred->key_len;
 316                 }
 317                 ssid->wep_tx_keyidx = key_idx;
 318                 break;
 319         case WPS_ENCR_TKIP:
 320                 ssid->pairwise_cipher = WPA_CIPHER_TKIP;
 321                 break;
 322         case WPS_ENCR_AES:
 323                 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
 324                 break;
 325         }
 326
 327         switch (auth_type) {
 328         case WPS_AUTH_OPEN:
 329                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 330                 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
 331                 ssid->proto = 0;
 332 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
 333                 if (registrar) {
 334                         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK
 335                                 "id=%d - Credentials for an open "
 336                                 "network disabled by default - use "
 337                                 "'select_network %d' to enable",
 338                                 ssid->id, ssid->id);
 339                         ssid->disabled = 1;
 340                 }
 341 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
 342                 break;
 343         case WPS_AUTH_SHARED:
 344                 ssid->auth_alg = WPA_AUTH_ALG_SHARED;
 345                 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
 346                 ssid->proto = 0;
 347                 break;
 348         case WPS_AUTH_WPAPSK:
 349                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 350                 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
 351                 ssid->proto = WPA_PROTO_WPA;
 352                 break;
 353         case WPS_AUTH_WPA:
 354                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 355                 ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
 356                 ssid->proto = WPA_PROTO_WPA;
 357                 break;
 358         case WPS_AUTH_WPA2:
 359                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 360                 ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
 361                 ssid->proto = WPA_PROTO_RSN;
 362                 break;
 363         case WPS_AUTH_WPA2PSK:
 364                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 365                 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
 366                 ssid->proto = WPA_PROTO_RSN;
 367                 break;
 368         }
 369
 370         if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) {
 371                 if (cred->key_len == 2 * PMK_LEN) {
 372                         if (hexstr2bin((const char *) cred->key, ssid->psk,
 373                                        PMK_LEN)) {
 374                                 wpa_printf(MSG_ERROR, "WPS: Invalid Network "
 375                                            "Key");
 376                                 return -1;
 377                         }
 378                         ssid->psk_set = 1;
 379                         ssid->export_keys = 1;
 380                 } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) {
 381                         os_free(ssid->passphrase);
 382                         ssid->passphrase = os_malloc(cred->key_len + 1);
 383                         if (ssid->passphrase == NULL)
 384                                 return -1;
 385                         os_memcpy(ssid->passphrase, cred->key, cred->key_len);
 386                         ssid->passphrase[cred->key_len] = '\0';
 387                         wpa_config_update_psk(ssid);
 388                         ssid->export_keys = 1;
 389                 } else {
 390                         wpa_printf(MSG_ERROR, "WPS: Invalid Network Key "
 391                                    "length %lu",
 392                                    (unsigned long) cred->key_len);
 393                         return -1;
 394                 }
 395         }
 396
 397         wpas_wps_security_workaround(wpa_s, ssid, cred);
 398
 399 #ifndef CONFIG_NO_CONFIG_WRITE
 400         if (wpa_s->conf->update_config &&
 401             wpa_config_write(wpa_s->confname, wpa_s->conf)) {
 402                 wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration");
 403                 return -1;
 404         }
 405 #endif /* CONFIG_NO_CONFIG_WRITE */
 406
 407         return 0;
 408 }
 409
 410
 411 #ifdef CONFIG_P2P
 412 static void wpas_wps_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
 413 {
 414         struct wpa_supplicant *wpa_s = eloop_ctx;
 415         wpas_p2p_notif_pbc_overlap(wpa_s);
 416 }
 417 #endif /* CONFIG_P2P */
 418
 419
 420 static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s,
 421                                          struct wps_event_m2d *m2d)
 422 {
 423         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D
 424                 "dev_password_id=%d config_error=%d",
 425                 m2d->dev_password_id, m2d->config_error);
 426         wpas_notify_wps_event_m2d(wpa_s, m2d);
 427 #ifdef CONFIG_P2P
 428         if (wpa_s->parent && wpa_s->parent != wpa_s) {
 429                 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_M2D
 430                         "dev_password_id=%d config_error=%d",
 431                         m2d->dev_password_id, m2d->config_error);
 432         }
 433         if (m2d->config_error == WPS_CFG_MULTIPLE_PBC_DETECTED) {
 434                 /*
 435                  * Notify P2P from eloop timeout to avoid issues with the
 436                  * interface getting removed while processing a message.
 437                  */
 438                 eloop_register_timeout(0, 0, wpas_wps_pbc_overlap_cb, wpa_s,
 439                                        NULL);
 440         }
 441 #endif /* CONFIG_P2P */
 442 }
 443
 444
 445 static const char * wps_event_fail_reason[NUM_WPS_EI_VALUES] = {
 446         "No Error", /* WPS_EI_NO_ERROR */
 447         "TKIP Only Prohibited", /* WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED */
 448         "WEP Prohibited" /* WPS_EI_SECURITY_WEP_PROHIBITED */
 449 };
 450
 451 static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
 452                                           struct wps_event_fail *fail)
 453 {
 454         if (fail->error_indication > 0 &&
 455             fail->error_indication < NUM_WPS_EI_VALUES) {
 456                 wpa_msg(wpa_s, MSG_INFO,
 457                         WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
 458                         fail->msg, fail->config_error, fail->error_indication,
 459                         wps_event_fail_reason[fail->error_indication]);
 460                 if (wpa_s->parent && wpa_s->parent != wpa_s)
 461                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 462                                 "msg=%d config_error=%d reason=%d (%s)",
 463                                 fail->msg, fail->config_error,
 464                                 fail->error_indication,
 465                                 wps_event_fail_reason[fail->error_indication]);
 466         } else {
 467                 wpa_msg(wpa_s, MSG_INFO,
 468                         WPS_EVENT_FAIL "msg=%d config_error=%d",
 469                         fail->msg, fail->config_error);
 470                 if (wpa_s->parent && wpa_s->parent != wpa_s)
 471                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 472                                 "msg=%d config_error=%d",
 473                                 fail->msg, fail->config_error);
 474         }
 475         wpas_clear_wps(wpa_s);
 476         wpas_notify_wps_event_fail(wpa_s, fail);
 477 #ifdef CONFIG_P2P
 478         wpas_p2p_wps_failed(wpa_s, fail);
 479 #endif /* CONFIG_P2P */
 480 }
 481
 482
 483 static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s)
 484 {
 485         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS);
 486         wpa_s->wps_success = 1;
 487         wpas_notify_wps_event_success(wpa_s);
 488 #ifdef CONFIG_P2P
 489         wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0);
 490 #endif /* CONFIG_P2P */
 491 }
 492
 493
 494 static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s,
 495                                                struct wps_event_er_ap *ap)
 496 {
 497         char uuid_str[100];
 498         char dev_type[WPS_DEV_TYPE_BUFSIZE];
 499
 500         uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
 501         if (ap->pri_dev_type)
 502                 wps_dev_type_bin2str(ap->pri_dev_type, dev_type,
 503                                      sizeof(dev_type));
 504         else
 505                 dev_type[0] = '\0';
 506
 507         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR
 508                 " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|",
 509                 uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state,
 510                 ap->friendly_name ? ap->friendly_name : "",
 511                 ap->manufacturer ? ap->manufacturer : "",
 512                 ap->model_description ? ap->model_description : "",
 513                 ap->model_name ? ap->model_name : "",
 514                 ap->manufacturer_url ? ap->manufacturer_url : "",
 515                 ap->model_url ? ap->model_url : "");
 516 }
 517
 518
 519 static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s,
 520                                                   struct wps_event_er_ap *ap)
 521 {
 522         char uuid_str[100];
 523         uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
 524         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str);
 525 }
 526
 527
 528 static void wpa_supplicant_wps_event_er_enrollee_add(
 529         struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
 530 {
 531         char uuid_str[100];
 532         char dev_type[WPS_DEV_TYPE_BUFSIZE];
 533
 534         uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
 535         if (enrollee->pri_dev_type)
 536                 wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type,
 537                                      sizeof(dev_type));
 538         else
 539                 dev_type[0] = '\0';
 540
 541         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR
 542                 " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s "
 543                 "|%s|%s|%s|%s|%s|",
 544                 uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received,
 545                 enrollee->config_methods, enrollee->dev_passwd_id, dev_type,
 546                 enrollee->dev_name ? enrollee->dev_name : "",
 547                 enrollee->manufacturer ? enrollee->manufacturer : "",
 548                 enrollee->model_name ? enrollee->model_name : "",
 549                 enrollee->model_number ? enrollee->model_number : "",
 550                 enrollee->serial_number ? enrollee->serial_number : "");
 551 }
 552
 553
 554 static void wpa_supplicant_wps_event_er_enrollee_remove(
 555         struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
 556 {
 557         char uuid_str[100];
 558         uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
 559         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR,
 560                 uuid_str, MAC2STR(enrollee->mac_addr));
 561 }
 562
 563
 564 static void wpa_supplicant_wps_event_er_ap_settings(
 565         struct wpa_supplicant *wpa_s,
 566         struct wps_event_er_ap_settings *ap_settings)
 567 {
 568         char uuid_str[100];
 569         char key_str[65];
 570         const struct wps_credential *cred = ap_settings->cred;
 571
 572         key_str[0] = '\0';
 573         if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
 574                 if (cred->key_len >= 8 && cred->key_len <= 64) {
 575                         os_memcpy(key_str, cred->key, cred->key_len);
 576                         key_str[cred->key_len] = '\0';
 577                 }
 578         }
 579
 580         uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str));
 581         /* Use wpa_msg_ctrl to avoid showing the key in debug log */
 582         wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS
 583                      "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x "
 584                      "key=%s",
 585                      uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len),
 586                      cred->auth_type, cred->encr_type, key_str);
 587 }
 588
 589
 590 static void wpa_supplicant_wps_event_er_set_sel_reg(
 591         struct wpa_supplicant *wpa_s,
 592         struct wps_event_er_set_selected_registrar *ev)
 593 {
 594         char uuid_str[100];
 595
 596         uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str));
 597         switch (ev->state) {
 598         case WPS_ER_SET_SEL_REG_START:
 599                 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
 600                         "uuid=%s state=START sel_reg=%d dev_passwd_id=%u "
 601                         "sel_reg_config_methods=0x%x",
 602                         uuid_str, ev->sel_reg, ev->dev_passwd_id,
 603                         ev->sel_reg_config_methods);
 604                 break;
 605         case WPS_ER_SET_SEL_REG_DONE:
 606                 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
 607                         "uuid=%s state=DONE", uuid_str);
 608                 break;
 609         case WPS_ER_SET_SEL_REG_FAILED:
 610                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG
 611                         "uuid=%s state=FAILED", uuid_str);
 612                 break;
 613         }
 614 }
 615
 616
 617 static void wpa_supplicant_wps_event(void *ctx, enum wps_event event,
 618                                      union wps_event_data *data)
 619 {
 620         struct wpa_supplicant *wpa_s = ctx;
 621         switch (event) {
 622         case WPS_EV_M2D:
 623                 wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d);
 624                 break;
 625         case WPS_EV_FAIL:
 626                 wpa_supplicant_wps_event_fail(wpa_s, &data->fail);
 627                 break;
 628         case WPS_EV_SUCCESS:
 629                 wpa_supplicant_wps_event_success(wpa_s);
 630                 break;
 631         case WPS_EV_PWD_AUTH_FAIL:
 632 #ifdef CONFIG_AP
 633                 if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee)
 634                         wpa_supplicant_ap_pwd_auth_fail(wpa_s);
 635 #endif /* CONFIG_AP */
 636                 break;
 637         case WPS_EV_PBC_OVERLAP:
 638                 break;
 639         case WPS_EV_PBC_TIMEOUT:
 640                 break;
 641         case WPS_EV_ER_AP_ADD:
 642                 wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap);
 643                 break;
 644         case WPS_EV_ER_AP_REMOVE:
 645                 wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap);
 646                 break;
 647         case WPS_EV_ER_ENROLLEE_ADD:
 648                 wpa_supplicant_wps_event_er_enrollee_add(wpa_s,
 649                                                          &data->enrollee);
 650                 break;
 651         case WPS_EV_ER_ENROLLEE_REMOVE:
 652                 wpa_supplicant_wps_event_er_enrollee_remove(wpa_s,
 653                                                             &data->enrollee);
 654                 break;
 655         case WPS_EV_ER_AP_SETTINGS:
 656                 wpa_supplicant_wps_event_er_ap_settings(wpa_s,
 657                                                         &data->ap_settings);
 658                 break;
 659         case WPS_EV_ER_SET_SELECTED_REGISTRAR:
 660                 wpa_supplicant_wps_event_er_set_sel_reg(wpa_s,
 661                                                         &data->set_sel_reg);
 662                 break;
 663         case WPS_EV_AP_PIN_SUCCESS:
 664                 break;
 665         }
 666 }
 667
 668
 669 enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid)
 670 {
 671         if (eap_is_wps_pbc_enrollee(&ssid->eap) ||
 672             eap_is_wps_pin_enrollee(&ssid->eap))
 673                 return WPS_REQ_ENROLLEE;
 674         else
 675                 return WPS_REQ_REGISTRAR;
 676 }
 677
 678
 679 static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
 680 {
 681         int id;
 682         struct wpa_ssid *ssid, *remove_ssid = NULL, *prev_current;
 683
 684         prev_current = wpa_s->current_ssid;
 685
 686         eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
 687
 688         /* Remove any existing WPS network from configuration */
 689         ssid = wpa_s->conf->ssid;
 690         while (ssid) {
 691                 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
 692                         if (ssid == wpa_s->current_ssid) {
 693                                 wpa_s->current_ssid = NULL;
 694                                 if (ssid != NULL)
 695                                         wpas_notify_network_changed(wpa_s);
 696                         }
 697                         id = ssid->id;
 698                         remove_ssid = ssid;
 699                 } else
 700                         id = -1;
 701                 ssid = ssid->next;
 702                 if (id >= 0) {
 703                         if (prev_current == remove_ssid) {
 704                                 wpa_sm_set_config(wpa_s->wpa, NULL);
 705                                 eapol_sm_notify_config(wpa_s->eapol, NULL,
 706                                                        NULL);
 707                         }
 708                         wpas_notify_network_removed(wpa_s, remove_ssid);
 709                         wpa_config_remove_network(wpa_s->conf, id);
 710                 }
 711         }
 712 }
 713
 714
 715 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
 716 {
 717         struct wpa_supplicant *wpa_s = eloop_ctx;
 718         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
 719                 "out");
 720         wpas_clear_wps(wpa_s);
 721 }
 722
 723
 724 static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
 725                                               int registrar, const u8 *bssid)
 726 {
 727         struct wpa_ssid *ssid;
 728
 729         ssid = wpa_config_add_network(wpa_s->conf);
 730         if (ssid == NULL)
 731                 return NULL;
 732         wpas_notify_network_added(wpa_s, ssid);
 733         wpa_config_set_network_defaults(ssid);
 734         ssid->temporary = 1;
 735         if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 ||
 736             wpa_config_set(ssid, "eap", "WSC", 0) < 0 ||
 737             wpa_config_set(ssid, "identity", registrar ?
 738                            "\"" WSC_ID_REGISTRAR "\"" :
 739                            "\"" WSC_ID_ENROLLEE "\"", 0) < 0) {
 740                 wpas_notify_network_removed(wpa_s, ssid);
 741                 wpa_config_remove_network(wpa_s->conf, ssid->id);
 742                 return NULL;
 743         }
 744
 745         if (bssid) {
 746 #ifndef CONFIG_P2P
 747                 struct wpa_bss *bss;
 748                 int count = 0;
 749 #endif /* CONFIG_P2P */
 750
 751                 os_memcpy(ssid->bssid, bssid, ETH_ALEN);
 752                 ssid->bssid_set = 1;
 753
 754                 /*
 755                  * Note: With P2P, the SSID may change at the time the WPS
 756                  * provisioning is started, so better not filter the AP based
 757                  * on the current SSID in the scan results.
 758                  */
 759 #ifndef CONFIG_P2P
 760                 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
 761                         if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0)
 762                                 continue;
 763
 764                         os_free(ssid->ssid);
 765                         ssid->ssid = os_malloc(bss->ssid_len);
 766                         if (ssid->ssid == NULL)
 767                                 break;
 768                         os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
 769                         ssid->ssid_len = bss->ssid_len;
 770                         wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from "
 771                                           "scan results",
 772                                           ssid->ssid, ssid->ssid_len);
 773                         count++;
 774                 }
 775
 776                 if (count > 1) {
 777                         wpa_printf(MSG_DEBUG, "WPS: More than one SSID found "
 778                                    "for the AP; use wildcard");
 779                         os_free(ssid->ssid);
 780                         ssid->ssid = NULL;
 781                         ssid->ssid_len = 0;
 782                 }
 783 #endif /* CONFIG_P2P */
 784         }
 785
 786         return ssid;
 787 }
 788
 789
 790 static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
 791                              struct wpa_ssid *selected, const u8 *bssid)
 792 {
 793         struct wpa_ssid *ssid;
 794         struct wpa_bss *bss;
 795
 796         wpa_s->known_wps_freq = 0;
 797         if (bssid) {
 798                 bss = wpa_bss_get_bssid(wpa_s, bssid);
 799                 if (bss && bss->freq > 0) {
 800                         wpa_s->known_wps_freq = 1;
 801                         wpa_s->wps_freq = bss->freq;
 802                 }
 803         }
 804
 805         if (wpa_s->current_ssid)
 806                 wpa_supplicant_deauthenticate(
 807                         wpa_s, WLAN_REASON_DEAUTH_LEAVING);
 808
 809         /* Mark all other networks disabled and trigger reassociation */
 810         ssid = wpa_s->conf->ssid;
 811         while (ssid) {
 812                 int was_disabled = ssid->disabled;
 813                 /*
 814                  * In case the network object corresponds to a persistent group
 815                  * then do not send out network disabled signal. In addition,
 816                  * do not change disabled status of persistent network objects
 817                  * from 2 to 1 should we connect to another network.
 818                  */
 819                 if (was_disabled != 2) {
 820                         ssid->disabled = ssid != selected;
 821                         if (was_disabled != ssid->disabled)
 822                                 wpas_notify_network_enabled_changed(wpa_s,
 823                                                                     ssid);
 824                 }
 825                 ssid = ssid->next;
 826         }
 827         wpa_s->disconnected = 0;
 828         wpa_s->reassociate = 1;
 829         wpa_s->scan_runs = 0;
 830         wpa_s->normal_scans = 0;
 831         wpa_s->wps_success = 0;
 832         wpa_s->blacklist_cleared = 0;
 833         wpa_supplicant_req_scan(wpa_s, 0, 0);
 834 }
 835
 836
 837 int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 838                        int p2p_group)
 839 {
 840         struct wpa_ssid *ssid;
 841         wpas_clear_wps(wpa_s);
 842         ssid = wpas_wps_add_network(wpa_s, 0, bssid);
 843         if (ssid == NULL)
 844                 return -1;
 845         ssid->temporary = 1;
 846         ssid->p2p_group = p2p_group;
 847 #ifdef CONFIG_P2P
 848         if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
 849                 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
 850                 if (ssid->ssid) {
 851                         ssid->ssid_len = wpa_s->go_params->ssid_len;
 852                         os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
 853                                   ssid->ssid_len);
 854                         wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
 855                                           "SSID", ssid->ssid, ssid->ssid_len);
 856                 }
 857         }
 858 #endif /* CONFIG_P2P */
 859         wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0);
 860         if (wpa_s->wps_fragment_size)
 861                 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
 862         eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
 863                                wpa_s, NULL);
 864         wpas_wps_reassoc(wpa_s, ssid, bssid);
 865         return 0;
 866 }
 867
 868
 869 int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 870                        const char *pin, int p2p_group, u16 dev_pw_id)
 871 {
 872         struct wpa_ssid *ssid;
 873         char val[128];
 874         unsigned int rpin = 0;
 875
 876         wpas_clear_wps(wpa_s);
 877         ssid = wpas_wps_add_network(wpa_s, 0, bssid);
 878         if (ssid == NULL)
 879                 return -1;
 880         ssid->temporary = 1;
 881         ssid->p2p_group = p2p_group;
 882 #ifdef CONFIG_P2P
 883         if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
 884                 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
 885                 if (ssid->ssid) {
 886                         ssid->ssid_len = wpa_s->go_params->ssid_len;
 887                         os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
 888                                   ssid->ssid_len);
 889                         wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
 890                                           "SSID", ssid->ssid, ssid->ssid_len);
 891                 }
 892         }
 893 #endif /* CONFIG_P2P */
 894         if (pin)
 895                 os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u\"",
 896                             pin, dev_pw_id);
 897         else {
 898                 rpin = wps_generate_pin();
 899                 os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u\"",
 900                             rpin, dev_pw_id);
 901         }
 902         wpa_config_set(ssid, "phase1", val, 0);
 903         if (wpa_s->wps_fragment_size)
 904                 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
 905         eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
 906                                wpa_s, NULL);
 907         wpas_wps_reassoc(wpa_s, ssid, bssid);
 908         return rpin;
 909 }
 910
 911
 912 /* Cancel the wps pbc/pin requests */
 913 int wpas_wps_cancel(struct wpa_supplicant *wpa_s)
 914 {
 915 #ifdef CONFIG_AP
 916         if (wpa_s->ap_iface) {
 917                 wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode");
 918                 return wpa_supplicant_ap_wps_cancel(wpa_s);
 919         }
 920 #endif /* CONFIG_AP */
 921
 922         if (wpa_s->wpa_state == WPA_SCANNING) {
 923                 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan");
 924                 wpa_supplicant_cancel_scan(wpa_s);
 925                 wpas_clear_wps(wpa_s);
 926         } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
 927                 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - "
 928                            "deauthenticate");
 929                 wpa_supplicant_deauthenticate(wpa_s,
 930                                               WLAN_REASON_DEAUTH_LEAVING);
 931                 wpas_clear_wps(wpa_s);
 932         }
 933
 934         return 0;
 935 }
 936
 937
 938 #ifdef CONFIG_WPS_OOB
 939 int wpas_wps_start_oob(struct wpa_supplicant *wpa_s, char *device_type,
 940                        char *path, char *method, char *name)
 941 {
 942         struct wps_context *wps = wpa_s->wps;
 943         struct oob_device_data *oob_dev;
 944
 945         oob_dev = wps_get_oob_device(device_type);
 946         if (oob_dev == NULL)
 947                 return -1;
 948         oob_dev->device_path = path;
 949         oob_dev->device_name = name;
 950         wps->oob_conf.oob_method = wps_get_oob_method(method);
 951
 952         if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E) {
 953                 /*
 954                  * Use pre-configured DH keys in order to be able to write the
 955                  * key hash into the OOB file.
 956                  */
 957                 wpabuf_free(wps->dh_pubkey);
 958                 wpabuf_free(wps->dh_privkey);
 959                 wps->dh_privkey = NULL;
 960                 wps->dh_pubkey = NULL;
 961                 dh5_free(wps->dh_ctx);
 962                 wps->dh_ctx = dh5_init(&wps->dh_privkey, &wps->dh_pubkey);
 963                 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
 964                 if (wps->dh_ctx == NULL || wps->dh_pubkey == NULL) {
 965                         wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
 966                                    "Diffie-Hellman handshake");
 967                         return -1;
 968                 }
 969         }
 970
 971         if (wps->oob_conf.oob_method == OOB_METHOD_CRED)
 972                 wpas_clear_wps(wpa_s);
 973
 974         if (wps_process_oob(wps, oob_dev, 0) < 0)
 975                 return -1;
 976
 977         if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
 978              wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
 979             wpas_wps_start_pin(wpa_s, NULL,
 980                                wpabuf_head(wps->oob_conf.dev_password), 0,
 981                                DEV_PW_DEFAULT) < 0)
 982                         return -1;
 983
 984         return 0;
 985 }
 986 #endif /* CONFIG_WPS_OOB */
 987
 988
 989 int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
 990                        const char *pin, struct wps_new_ap_settings *settings)
 991 {
 992         struct wpa_ssid *ssid;
 993         char val[200];
 994         char *pos, *end;
 995         int res;
 996
 997         if (!pin)
 998                 return -1;
 999         wpas_clear_wps(wpa_s);
1000         ssid = wpas_wps_add_network(wpa_s, 1, bssid);
1001         if (ssid == NULL)
1002                 return -1;
1003         ssid->temporary = 1;
1004         pos = val;
1005         end = pos + sizeof(val);
1006         res = os_snprintf(pos, end - pos, "\"pin=%s", pin);
1007         if (res < 0 || res >= end - pos)
1008                 return -1;
1009         pos += res;
1010         if (settings) {
1011                 res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s "
1012                                   "new_encr=%s new_key=%s",
1013                                   settings->ssid_hex, settings->auth,
1014                                   settings->encr, settings->key_hex);
1015                 if (res < 0 || res >= end - pos)
1016                         return -1;
1017                 pos += res;
1018         }
1019         res = os_snprintf(pos, end - pos, "\"");
1020         if (res < 0 || res >= end - pos)
1021                 return -1;
1022         wpa_config_set(ssid, "phase1", val, 0);
1023         if (wpa_s->wps_fragment_size)
1024                 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
1025         eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1026                                wpa_s, NULL);
1027         wpas_wps_reassoc(wpa_s, ssid, bssid);
1028         return 0;
1029 }
1030
1031
1032 static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
1033                                size_t psk_len)
1034 {
1035         wpa_printf(MSG_DEBUG, "WPS: Received new WPA/WPA2-PSK from WPS for "
1036                    "STA " MACSTR, MAC2STR(mac_addr));
1037         wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
1038
1039         /* TODO */
1040
1041         return 0;
1042 }
1043
1044
1045 static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
1046                                    const struct wps_device_data *dev)
1047 {
1048         char uuid[40], txt[400];
1049         int len;
1050         char devtype[WPS_DEV_TYPE_BUFSIZE];
1051         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
1052                 return;
1053         wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid);
1054         len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR
1055                           " [%s|%s|%s|%s|%s|%s]",
1056                           uuid, MAC2STR(dev->mac_addr), dev->device_name,
1057                           dev->manufacturer, dev->model_name,
1058                           dev->model_number, dev->serial_number,
1059                           wps_dev_type_bin2str(dev->pri_dev_type, devtype,
1060                                                sizeof(devtype)));
1061         if (len > 0 && len < (int) sizeof(txt))
1062                 wpa_printf(MSG_INFO, "%s", txt);
1063 }
1064
1065
1066 static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id,
1067                                     u16 sel_reg_config_methods)
1068 {
1069 #ifdef CONFIG_WPS_ER
1070         struct wpa_supplicant *wpa_s = ctx;
1071
1072         if (wpa_s->wps_er == NULL)
1073                 return;
1074         wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d "
1075                    "dev_password_id=%u sel_reg_config_methods=0x%x",
1076                    sel_reg, dev_passwd_id, sel_reg_config_methods);
1077         wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id,
1078                            sel_reg_config_methods);
1079 #endif /* CONFIG_WPS_ER */
1080 }
1081
1082
1083 static u16 wps_fix_config_methods(u16 config_methods)
1084 {
1085 #ifdef CONFIG_WPS2
1086         if ((config_methods &
1087              (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
1088               WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
1089                 wpa_printf(MSG_INFO, "WPS: Converting display to "
1090                            "virtual_display for WPS 2.0 compliance");
1091                 config_methods |= WPS_CONFIG_VIRT_DISPLAY;
1092         }
1093         if ((config_methods &
1094              (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
1095               WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
1096                 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
1097                            "virtual_push_button for WPS 2.0 compliance");
1098                 config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
1099         }
1100 #endif /* CONFIG_WPS2 */
1101
1102         return config_methods;
1103 }
1104
1105
1106 static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s,
1107                               struct wps_context *wps)
1108 {
1109         wpa_printf(MSG_DEBUG, "WPS: Set UUID for interface %s", wpa_s->ifname);
1110         if (is_nil_uuid(wpa_s->conf->uuid)) {
1111                 struct wpa_supplicant *first;
1112                 first = wpa_s->global->ifaces;
1113                 while (first && first->next)
1114                         first = first->next;
1115                 if (first && first != wpa_s) {
1116                         os_memcpy(wps->uuid, wpa_s->global->ifaces->wps->uuid,
1117                                   WPS_UUID_LEN);
1118                         wpa_hexdump(MSG_DEBUG, "WPS: UUID from the first "
1119                                     "interface", wps->uuid, WPS_UUID_LEN);
1120                 } else {
1121                         uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
1122                         wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
1123                                     "address", wps->uuid, WPS_UUID_LEN);
1124                 }
1125         } else {
1126                 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
1127                 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on configuration",
1128                             wps->uuid, WPS_UUID_LEN);
1129         }
1130 }
1131
1132
1133 int wpas_wps_init(struct wpa_supplicant *wpa_s)
1134 {
1135         struct wps_context *wps;
1136         struct wps_registrar_config rcfg;
1137         struct hostapd_hw_modes *modes;
1138         u16 m;
1139
1140         wps = os_zalloc(sizeof(*wps));
1141         if (wps == NULL)
1142                 return -1;
1143
1144         wps->cred_cb = wpa_supplicant_wps_cred;
1145         wps->event_cb = wpa_supplicant_wps_event;
1146         wps->cb_ctx = wpa_s;
1147
1148         wps->dev.device_name = wpa_s->conf->device_name;
1149         wps->dev.manufacturer = wpa_s->conf->manufacturer;
1150         wps->dev.model_name = wpa_s->conf->model_name;
1151         wps->dev.model_number = wpa_s->conf->model_number;
1152         wps->dev.serial_number = wpa_s->conf->serial_number;
1153         wps->config_methods =
1154                 wps_config_methods_str2bin(wpa_s->conf->config_methods);
1155         if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1156             (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1157                 wpa_printf(MSG_ERROR, "WPS: Both Label and Display config "
1158                            "methods are not allowed at the same time");
1159                 os_free(wps);
1160                 return -1;
1161         }
1162         wps->config_methods = wps_fix_config_methods(wps->config_methods);
1163         wps->dev.config_methods = wps->config_methods;
1164         os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1165                   WPS_DEV_TYPE_LEN);
1166
1167         wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1168         os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1169                   WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types);
1170
1171         wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1172         modes = wpa_s->hw.modes;
1173         if (modes) {
1174                 for (m = 0; m < wpa_s->hw.num_modes; m++) {
1175                         if (modes[m].mode == HOSTAPD_MODE_IEEE80211B ||
1176                             modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1177                                 wps->dev.rf_bands |= WPS_RF_24GHZ;
1178                         else if (modes[m].mode == HOSTAPD_MODE_IEEE80211A)
1179                                 wps->dev.rf_bands |= WPS_RF_50GHZ;
1180                 }
1181         }
1182         if (wps->dev.rf_bands == 0) {
1183                 /*
1184                  * Default to claiming support for both bands if the driver
1185                  * does not provide support for fetching supported bands.
1186                  */
1187                 wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ;
1188         }
1189         os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
1190         wpas_wps_set_uuid(wpa_s, wps);
1191
1192         wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
1193         wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
1194
1195         os_memset(&rcfg, 0, sizeof(rcfg));
1196         rcfg.new_psk_cb = wpas_wps_new_psk_cb;
1197         rcfg.pin_needed_cb = wpas_wps_pin_needed_cb;
1198         rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb;
1199         rcfg.cb_ctx = wpa_s;
1200
1201         wps->registrar = wps_registrar_init(wps, &rcfg);
1202         if (wps->registrar == NULL) {
1203                 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar");
1204                 os_free(wps);
1205                 return -1;
1206         }
1207
1208         wpa_s->wps = wps;
1209
1210         return 0;
1211 }
1212
1213
1214 void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
1215 {
1216         eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
1217
1218         if (wpa_s->wps == NULL)
1219                 return;
1220
1221 #ifdef CONFIG_WPS_ER
1222         wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1223         wpa_s->wps_er = NULL;
1224 #endif /* CONFIG_WPS_ER */
1225
1226         wps_registrar_deinit(wpa_s->wps->registrar);
1227         wpabuf_free(wpa_s->wps->dh_pubkey);
1228         wpabuf_free(wpa_s->wps->dh_privkey);
1229         wpabuf_free(wpa_s->wps->oob_conf.pubkey_hash);
1230         wpabuf_free(wpa_s->wps->oob_conf.dev_password);
1231         os_free(wpa_s->wps->network_key);
1232         os_free(wpa_s->wps);
1233         wpa_s->wps = NULL;
1234 }
1235
1236
1237 int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
1238                             struct wpa_ssid *ssid, struct wpa_scan_res *bss)
1239 {
1240         struct wpabuf *wps_ie;
1241
1242         if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
1243                 return -1;
1244
1245         wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1246         if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1247                 if (!wps_ie) {
1248                         wpa_printf(MSG_DEBUG, "   skip - non-WPS AP");
1249                         return 0;
1250                 }
1251
1252                 if (!wps_is_selected_pbc_registrar(wps_ie)) {
1253                         wpa_printf(MSG_DEBUG, "   skip - WPS AP "
1254                                    "without active PBC Registrar");
1255                         wpabuf_free(wps_ie);
1256                         return 0;
1257                 }
1258
1259                 /* TODO: overlap detection */
1260                 wpa_printf(MSG_DEBUG, "   selected based on WPS IE "
1261                            "(Active PBC)");
1262                 wpabuf_free(wps_ie);
1263                 return 1;
1264         }
1265
1266         if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1267                 if (!wps_ie) {
1268                         wpa_printf(MSG_DEBUG, "   skip - non-WPS AP");
1269                         return 0;
1270                 }
1271
1272                 /*
1273                  * Start with WPS APs that advertise our address as an
1274                  * authorized MAC (v2.0) or active PIN Registrar (v1.0) and
1275                  * allow any WPS AP after couple of scans since some APs do not
1276                  * set Selected Registrar attribute properly when using
1277                  * external Registrar.
1278                  */
1279                 if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) {
1280                         if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG) {
1281                                 wpa_printf(MSG_DEBUG, "   skip - WPS AP "
1282                                            "without active PIN Registrar");
1283                                 wpabuf_free(wps_ie);
1284                                 return 0;
1285                         }
1286                         wpa_printf(MSG_DEBUG, "   selected based on WPS IE");
1287                 } else {
1288                         wpa_printf(MSG_DEBUG, "   selected based on WPS IE "
1289                                    "(Authorized MAC or Active PIN)");
1290                 }
1291                 wpabuf_free(wps_ie);
1292                 return 1;
1293         }
1294
1295         if (wps_ie) {
1296                 wpa_printf(MSG_DEBUG, "   selected based on WPS IE");
1297                 wpabuf_free(wps_ie);
1298                 return 1;
1299         }
1300
1301         return -1;
1302 }
1303
1304
1305 int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
1306                               struct wpa_ssid *ssid,
1307                               struct wpa_scan_res *bss)
1308 {
1309         struct wpabuf *wps_ie = NULL;
1310         int ret = 0;
1311
1312         if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1313                 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1314                 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) {
1315                         /* allow wildcard SSID for WPS PBC */
1316                         ret = 1;
1317                 }
1318         } else if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1319                 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1320                 if (wps_ie &&
1321                     (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) ||
1322                      wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) {
1323                         /* allow wildcard SSID for WPS PIN */
1324                         ret = 1;
1325                 }
1326         }
1327
1328         if (!ret && ssid->bssid_set &&
1329             os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) {
1330                 /* allow wildcard SSID due to hardcoded BSSID match */
1331                 ret = 1;
1332         }
1333
1334 #ifdef CONFIG_WPS_STRICT
1335         if (wps_ie) {
1336                 if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len >
1337                                                    0, bss->bssid) < 0)
1338                         ret = 0;
1339                 if (bss->beacon_ie_len) {
1340                         struct wpabuf *bcn_wps;
1341                         bcn_wps = wpa_scan_get_vendor_ie_multi_beacon(
1342                                 bss, WPS_IE_VENDOR_TYPE);
1343                         if (bcn_wps == NULL) {
1344                                 wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE "
1345                                            "missing from AP Beacon");
1346                                 ret = 0;
1347                         } else {
1348                                 if (wps_validate_beacon(wps_ie) < 0)
1349                                         ret = 0;
1350                                 wpabuf_free(bcn_wps);
1351                         }
1352                 }
1353         }
1354 #endif /* CONFIG_WPS_STRICT */
1355
1356         wpabuf_free(wps_ie);
1357
1358         return ret;
1359 }
1360
1361
1362 int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
1363                               struct wpa_bss *selected, struct wpa_ssid *ssid)
1364 {
1365         const u8 *sel_uuid, *uuid;
1366         struct wpabuf *wps_ie;
1367         int ret = 0;
1368         struct wpa_bss *bss;
1369
1370         if (!eap_is_wps_pbc_enrollee(&ssid->eap))
1371                 return 0;
1372
1373         wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is "
1374                    "present in scan results; selected BSSID " MACSTR,
1375                    MAC2STR(selected->bssid));
1376
1377         /* Make sure that only one AP is in active PBC mode */
1378         wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE);
1379         if (wps_ie) {
1380                 sel_uuid = wps_get_uuid_e(wps_ie);
1381                 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS",
1382                             sel_uuid, UUID_LEN);
1383         } else {
1384                 wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include "
1385                            "WPS IE?!");
1386                 sel_uuid = NULL;
1387         }
1388
1389         dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1390                 struct wpabuf *ie;
1391                 if (bss == selected)
1392                         continue;
1393                 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1394                 if (!ie)
1395                         continue;
1396                 if (!wps_is_selected_pbc_registrar(ie)) {
1397                         wpabuf_free(ie);
1398                         continue;
1399                 }
1400                 wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: "
1401                            MACSTR, MAC2STR(bss->bssid));
1402                 uuid = wps_get_uuid_e(ie);
1403                 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS",
1404                             uuid, UUID_LEN);
1405                 if (sel_uuid == NULL || uuid == NULL ||
1406                     os_memcmp(sel_uuid, uuid, UUID_LEN) != 0) {
1407                         ret = 1; /* PBC overlap */
1408                         wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: "
1409                                 MACSTR " and " MACSTR,
1410                                 MAC2STR(selected->bssid),
1411                                 MAC2STR(bss->bssid));
1412                         wpabuf_free(ie);
1413                         break;
1414                 }
1415
1416                 /* TODO: verify that this is reasonable dual-band situation */
1417
1418                 wpabuf_free(ie);
1419         }
1420
1421         wpabuf_free(wps_ie);
1422
1423         return ret;
1424 }
1425
1426
1427 void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
1428 {
1429         struct wpa_bss *bss;
1430         unsigned int pbc = 0, auth = 0, pin = 0, wps = 0;
1431
1432         if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED)
1433                 return;
1434
1435         dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1436                 struct wpabuf *ie;
1437                 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1438                 if (!ie)
1439                         continue;
1440                 if (wps_is_selected_pbc_registrar(ie))
1441                         pbc++;
1442                 else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0))
1443                         auth++;
1444                 else if (wps_is_selected_pin_registrar(ie))
1445                         pin++;
1446                 else
1447                         wps++;
1448                 wpabuf_free(ie);
1449         }
1450
1451         if (pbc)
1452                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC);
1453         else if (auth)
1454                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH);
1455         else if (pin)
1456                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN);
1457         else if (wps)
1458                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE);
1459 }
1460
1461
1462 int wpas_wps_searching(struct wpa_supplicant *wpa_s)
1463 {
1464         struct wpa_ssid *ssid;
1465
1466         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1467                 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled)
1468                         return 1;
1469         }
1470
1471         return 0;
1472 }
1473
1474
1475 int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
1476                               char *end)
1477 {
1478         struct wpabuf *wps_ie;
1479         int ret;
1480
1481         wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA);
1482         if (wps_ie == NULL)
1483                 return 0;
1484
1485         ret = wps_attr_text(wps_ie, buf, end);
1486         wpabuf_free(wps_ie);
1487         return ret;
1488 }
1489
1490
1491 int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter)
1492 {
1493 #ifdef CONFIG_WPS_ER
1494         if (wpa_s->wps_er) {
1495                 wps_er_refresh(wpa_s->wps_er);
1496                 return 0;
1497         }
1498         wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter);
1499         if (wpa_s->wps_er == NULL)
1500                 return -1;
1501         return 0;
1502 #else /* CONFIG_WPS_ER */
1503         return 0;
1504 #endif /* CONFIG_WPS_ER */
1505 }
1506
1507
1508 int wpas_wps_er_stop(struct wpa_supplicant *wpa_s)
1509 {
1510 #ifdef CONFIG_WPS_ER
1511         wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1512         wpa_s->wps_er = NULL;
1513 #endif /* CONFIG_WPS_ER */
1514         return 0;
1515 }
1516
1517
1518 #ifdef CONFIG_WPS_ER
1519 int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr,
1520                         const char *uuid, const char *pin)
1521 {
1522         u8 u[UUID_LEN];
1523         int any = 0;
1524
1525         if (os_strcmp(uuid, "any") == 0)
1526                 any = 1;
1527         else if (uuid_str2bin(uuid, u))
1528                 return -1;
1529         return wps_registrar_add_pin(wpa_s->wps->registrar, addr,
1530                                      any ? NULL : u,
1531                                      (const u8 *) pin, os_strlen(pin), 300);
1532 }
1533
1534
1535 int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid)
1536 {
1537         u8 u[UUID_LEN];
1538
1539         if (uuid_str2bin(uuid, u))
1540                 return -1;
1541         return wps_er_pbc(wpa_s->wps_er, u);
1542 }
1543
1544
1545 int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid,
1546                       const char *pin)
1547 {
1548         u8 u[UUID_LEN];
1549
1550         if (uuid_str2bin(uuid, u))
1551                 return -1;
1552         return wps_er_learn(wpa_s->wps_er, u, (const u8 *) pin,
1553                             os_strlen(pin));
1554 }
1555
1556
1557 int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid,
1558                            int id)
1559 {
1560         u8 u[UUID_LEN];
1561         struct wpa_ssid *ssid;
1562         struct wps_credential cred;
1563
1564         if (uuid_str2bin(uuid, u))
1565                 return -1;
1566         ssid = wpa_config_get_network(wpa_s->conf, id);
1567         if (ssid == NULL || ssid->ssid == NULL)
1568                 return -1;
1569
1570         os_memset(&cred, 0, sizeof(cred));
1571         if (ssid->ssid_len > 32)
1572                 return -1;
1573         os_memcpy(cred.ssid, ssid->ssid, ssid->ssid_len);
1574         cred.ssid_len = ssid->ssid_len;
1575         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
1576                 cred.auth_type = (ssid->proto & WPA_PROTO_RSN) ?
1577                         WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK;
1578                 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
1579                         cred.encr_type = WPS_ENCR_AES;
1580                 else
1581                         cred.encr_type = WPS_ENCR_TKIP;
1582                 if (ssid->passphrase) {
1583                         cred.key_len = os_strlen(ssid->passphrase);
1584                         if (cred.key_len >= 64)
1585                                 return -1;
1586                         os_memcpy(cred.key, ssid->passphrase, cred.key_len);
1587                 } else if (ssid->psk_set) {
1588                         cred.key_len = 32;
1589                         os_memcpy(cred.key, ssid->psk, 32);
1590                 } else
1591                         return -1;
1592         } else {
1593                 cred.auth_type = WPS_AUTH_OPEN;
1594                 cred.encr_type = WPS_ENCR_NONE;
1595         }
1596         return wps_er_set_config(wpa_s->wps_er, u, &cred);
1597 }
1598
1599
1600 int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid,
1601                        const char *pin, struct wps_new_ap_settings *settings)
1602 {
1603         u8 u[UUID_LEN];
1604         struct wps_credential cred;
1605         size_t len;
1606
1607         if (uuid_str2bin(uuid, u))
1608                 return -1;
1609         if (settings->ssid_hex == NULL || settings->auth == NULL ||
1610             settings->encr == NULL || settings->key_hex == NULL)
1611                 return -1;
1612
1613         os_memset(&cred, 0, sizeof(cred));
1614         len = os_strlen(settings->ssid_hex);
1615         if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
1616             hexstr2bin(settings->ssid_hex, cred.ssid, len / 2))
1617                 return -1;
1618         cred.ssid_len = len / 2;
1619
1620         len = os_strlen(settings->key_hex);
1621         if ((len & 1) || len > 2 * sizeof(cred.key) ||
1622             hexstr2bin(settings->key_hex, cred.key, len / 2))
1623                 return -1;
1624         cred.key_len = len / 2;
1625
1626         if (os_strcmp(settings->auth, "OPEN") == 0)
1627                 cred.auth_type = WPS_AUTH_OPEN;
1628         else if (os_strcmp(settings->auth, "WPAPSK") == 0)
1629                 cred.auth_type = WPS_AUTH_WPAPSK;
1630         else if (os_strcmp(settings->auth, "WPA2PSK") == 0)
1631                 cred.auth_type = WPS_AUTH_WPA2PSK;
1632         else
1633                 return -1;
1634
1635         if (os_strcmp(settings->encr, "NONE") == 0)
1636                 cred.encr_type = WPS_ENCR_NONE;
1637         else if (os_strcmp(settings->encr, "WEP") == 0)
1638                 cred.encr_type = WPS_ENCR_WEP;
1639         else if (os_strcmp(settings->encr, "TKIP") == 0)
1640                 cred.encr_type = WPS_ENCR_TKIP;
1641         else if (os_strcmp(settings->encr, "CCMP") == 0)
1642                 cred.encr_type = WPS_ENCR_AES;
1643         else
1644                 return -1;
1645
1646         return wps_er_config(wpa_s->wps_er, u, (const u8 *) pin,
1647                              os_strlen(pin), &cred);
1648 }
1649
1650
1651 static int callbacks_pending = 0;
1652
1653 static void wpas_wps_terminate_cb(void *ctx)
1654 {
1655         wpa_printf(MSG_DEBUG, "WPS ER: Terminated");
1656         if (--callbacks_pending <= 0)
1657                 eloop_terminate();
1658 }
1659 #endif /* CONFIG_WPS_ER */
1660
1661
1662 int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s)
1663 {
1664 #ifdef CONFIG_WPS_ER
1665         if (wpa_s->wps_er) {
1666                 callbacks_pending++;
1667                 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s);
1668                 wpa_s->wps_er = NULL;
1669                 return 1;
1670         }
1671 #endif /* CONFIG_WPS_ER */
1672         return 0;
1673 }
1674
1675
1676 int wpas_wps_in_progress(struct wpa_supplicant *wpa_s)
1677 {
1678         struct wpa_ssid *ssid;
1679
1680         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1681                 if (!ssid->disabled && ssid->key_mgmt == WPA_KEY_MGMT_WPS)
1682                         return 1;
1683         }
1684
1685         return 0;
1686 }
1687
1688
1689 void wpas_wps_update_config(struct wpa_supplicant *wpa_s)
1690 {
1691         struct wps_context *wps = wpa_s->wps;
1692
1693         if (wps == NULL)
1694                 return;
1695
1696         if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) {
1697                 wps->config_methods = wps_config_methods_str2bin(
1698                         wpa_s->conf->config_methods);
1699                 if ((wps->config_methods &
1700                      (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1701                     (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1702                         wpa_printf(MSG_ERROR, "WPS: Both Label and Display "
1703                                    "config methods are not allowed at the "
1704                                    "same time");
1705                         wps->config_methods &= ~WPS_CONFIG_LABEL;
1706                 }
1707         }
1708         wps->config_methods = wps_fix_config_methods(wps->config_methods);
1709
1710         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
1711                 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1712                           WPS_DEV_TYPE_LEN);
1713
1714         if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) {
1715                 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1716                 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1717                           wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN);
1718         }
1719
1720         if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION)
1721                 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1722
1723         if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID)
1724                 wpas_wps_set_uuid(wpa_s, wps);
1725
1726         if (wpa_s->conf->changed_parameters &
1727             (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) {
1728                 /* Update pointers to make sure they refer current values */
1729                 wps->dev.device_name = wpa_s->conf->device_name;
1730                 wps->dev.manufacturer = wpa_s->conf->manufacturer;
1731                 wps->dev.model_name = wpa_s->conf->model_name;
1732                 wps->dev.model_number = wpa_s->conf->model_number;
1733                 wps->dev.serial_number = wpa_s->conf->serial_number;
1734         }
1735 }