wpa_supplicant/wps_supplicant.c

   1 /*
   2  * wpa_supplicant / WPS integration
   3  * Copyright (c) 2008-2014, 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/random.h"
  15 #include "crypto/dh_group5.h"
  16 #include "common/ieee802_11_defs.h"
  17 #include "common/ieee802_11_common.h"
  18 #include "common/wpa_common.h"
  19 #include "common/wpa_ctrl.h"
  20 #include "eap_common/eap_wsc_common.h"
  21 #include "eap_peer/eap.h"
  22 #include "eapol_supp/eapol_supp_sm.h"
  23 #include "rsn_supp/wpa.h"
  24 #include "wps/wps_attr_parse.h"
  25 #include "config.h"
  26 #include "wpa_supplicant_i.h"
  27 #include "driver_i.h"
  28 #include "notify.h"
  29 #include "blacklist.h"
  30 #include "bss.h"
  31 #include "scan.h"
  32 #include "ap.h"
  33 #include "p2p/p2p.h"
  34 #include "p2p_supplicant.h"
  35 #include "wps_supplicant.h"
  36
  37
  38 #ifndef WPS_PIN_SCAN_IGNORE_SEL_REG
  39 #define WPS_PIN_SCAN_IGNORE_SEL_REG 3
  40 #endif /* WPS_PIN_SCAN_IGNORE_SEL_REG */
  41
  42 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx);
  43 static void wpas_clear_wps(struct wpa_supplicant *wpa_s);
  44
  45
  46 static void wpas_wps_clear_ap_info(struct wpa_supplicant *wpa_s)
  47 {
  48         os_free(wpa_s->wps_ap);
  49         wpa_s->wps_ap = NULL;
  50         wpa_s->num_wps_ap = 0;
  51         wpa_s->wps_ap_iter = 0;
  52 }
  53
  54
  55 static void wpas_wps_assoc_with_cred(void *eloop_ctx, void *timeout_ctx)
  56 {
  57         struct wpa_supplicant *wpa_s = eloop_ctx;
  58         int use_fast_assoc = timeout_ctx != NULL;
  59
  60         wpa_printf(MSG_DEBUG, "WPS: Continuing association after eapol_cb");
  61         if (!use_fast_assoc ||
  62             wpa_supplicant_fast_associate(wpa_s) != 1)
  63                 wpa_supplicant_req_scan(wpa_s, 0, 0);
  64 }
  65
  66
  67 static void wpas_wps_assoc_with_cred_cancel(struct wpa_supplicant *wpa_s)
  68 {
  69         eloop_cancel_timeout(wpas_wps_assoc_with_cred, wpa_s, (void *) 0);
  70         eloop_cancel_timeout(wpas_wps_assoc_with_cred, wpa_s, (void *) 1);
  71 }
  72
  73
  74 int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s)
  75 {
  76         if (wpas_p2p_wps_eapol_cb(wpa_s) > 0)
  77                 return 1;
  78
  79         if (!wpa_s->wps_success &&
  80             wpa_s->current_ssid &&
  81             eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
  82                 const u8 *bssid = wpa_s->bssid;
  83                 if (is_zero_ether_addr(bssid))
  84                         bssid = wpa_s->pending_bssid;
  85
  86                 wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR
  87                            " did not succeed - continue trying to find "
  88                            "suitable AP", MAC2STR(bssid));
  89                 wpa_blacklist_add(wpa_s, bssid);
  90
  91                 wpa_supplicant_deauthenticate(wpa_s,
  92                                               WLAN_REASON_DEAUTH_LEAVING);
  93                 wpa_s->reassociate = 1;
  94                 wpa_supplicant_req_scan(wpa_s,
  95                                         wpa_s->blacklist_cleared ? 5 : 0, 0);
  96                 wpa_s->blacklist_cleared = 0;
  97                 return 1;
  98         }
  99
 100         wpas_wps_clear_ap_info(wpa_s);
 101         eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
 102         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && !wpa_s->wps_success)
 103                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL);
 104
 105         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid &&
 106             !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
 107                 int disabled = wpa_s->current_ssid->disabled;
 108                 unsigned int freq = wpa_s->assoc_freq;
 109                 struct wpa_bss *bss;
 110                 struct wpa_ssid *ssid = NULL;
 111                 int use_fast_assoc = 0;
 112
 113                 wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - "
 114                            "try to associate with the received credential "
 115                            "(freq=%u)", freq);
 116                 wpa_supplicant_deauthenticate(wpa_s,
 117                                               WLAN_REASON_DEAUTH_LEAVING);
 118                 if (disabled) {
 119                         wpa_printf(MSG_DEBUG, "WPS: Current network is "
 120                                    "disabled - wait for user to enable");
 121                         return 1;
 122                 }
 123                 wpa_s->after_wps = 5;
 124                 wpa_s->wps_freq = freq;
 125                 wpa_s->normal_scans = 0;
 126                 wpa_s->reassociate = 1;
 127
 128                 wpa_printf(MSG_DEBUG, "WPS: Checking whether fast association "
 129                            "without a new scan can be used");
 130                 bss = wpa_supplicant_pick_network(wpa_s, &ssid);
 131                 if (bss) {
 132                         struct wpabuf *wps;
 133                         struct wps_parse_attr attr;
 134
 135                         wps = wpa_bss_get_vendor_ie_multi(bss,
 136                                                           WPS_IE_VENDOR_TYPE);
 137                         if (wps && wps_parse_msg(wps, &attr) == 0 &&
 138                             attr.wps_state &&
 139                             *attr.wps_state == WPS_STATE_CONFIGURED)
 140                                 use_fast_assoc = 1;
 141                         wpabuf_free(wps);
 142                 }
 143
 144                 /*
 145                  * Complete the next step from an eloop timeout to allow pending
 146                  * driver events related to the disconnection to be processed
 147                  * first. This makes it less likely for disconnection event to
 148                  * cause problems with the following connection.
 149                  */
 150                 wpa_printf(MSG_DEBUG, "WPS: Continue association from timeout");
 151                 wpas_wps_assoc_with_cred_cancel(wpa_s);
 152                 eloop_register_timeout(0, 10000,
 153                                        wpas_wps_assoc_with_cred, wpa_s,
 154                                        use_fast_assoc ? (void *) 1 :
 155                                        (void *) 0);
 156                 return 1;
 157         }
 158
 159         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) {
 160                 wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting "
 161                            "for external credential processing");
 162                 wpas_clear_wps(wpa_s);
 163                 wpa_supplicant_deauthenticate(wpa_s,
 164                                               WLAN_REASON_DEAUTH_LEAVING);
 165                 return 1;
 166         }
 167
 168         return 0;
 169 }
 170
 171
 172 static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s,
 173                                          struct wpa_ssid *ssid,
 174                                          const struct wps_credential *cred)
 175 {
 176         struct wpa_driver_capa capa;
 177         struct wpa_bss *bss;
 178         const u8 *ie;
 179         struct wpa_ie_data adv;
 180         int wpa2 = 0, ccmp = 0;
 181
 182         /*
 183          * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in
 184          * case they are configured for mixed mode operation (WPA+WPA2 and
 185          * TKIP+CCMP). Try to use scan results to figure out whether the AP
 186          * actually supports stronger security and select that if the client
 187          * has support for it, too.
 188          */
 189
 190         if (wpa_drv_get_capa(wpa_s, &capa))
 191                 return; /* Unknown what driver supports */
 192
 193         if (ssid->ssid == NULL)
 194                 return;
 195         bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len);
 196         if (bss == NULL) {
 197                 wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS "
 198                            "table - use credential as-is");
 199                 return;
 200         }
 201
 202         wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table");
 203
 204         ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
 205         if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) {
 206                 wpa2 = 1;
 207                 if (adv.pairwise_cipher & WPA_CIPHER_CCMP)
 208                         ccmp = 1;
 209         } else {
 210                 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 211                 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 &&
 212                     adv.pairwise_cipher & WPA_CIPHER_CCMP)
 213                         ccmp = 1;
 214         }
 215
 216         if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) &&
 217             (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) {
 218                 /*
 219                  * TODO: This could be the initial AP configuration and the
 220                  * Beacon contents could change shortly. Should request a new
 221                  * scan and delay addition of the network until the updated
 222                  * scan results are available.
 223                  */
 224                 wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA "
 225                            "support - use credential as-is");
 226                 return;
 227         }
 228
 229         if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
 230             (ssid->pairwise_cipher & WPA_CIPHER_TKIP) &&
 231             (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
 232                 wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential "
 233                            "based on scan results");
 234                 if (wpa_s->conf->ap_scan == 1)
 235                         ssid->pairwise_cipher |= WPA_CIPHER_CCMP;
 236                 else
 237                         ssid->pairwise_cipher = WPA_CIPHER_CCMP;
 238         }
 239
 240         if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) &&
 241             (ssid->proto & WPA_PROTO_WPA) &&
 242             (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) {
 243                 wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential "
 244                            "based on scan results");
 245                 if (wpa_s->conf->ap_scan == 1)
 246                         ssid->proto |= WPA_PROTO_RSN;
 247                 else
 248                         ssid->proto = WPA_PROTO_RSN;
 249         }
 250 }
 251
 252
 253 static void wpas_wps_remove_dup_network(struct wpa_supplicant *wpa_s,
 254                                         struct wpa_ssid *new_ssid)
 255 {
 256         struct wpa_ssid *ssid, *next;
 257
 258         for (ssid = wpa_s->conf->ssid, next = ssid ? ssid->next : NULL; ssid;
 259              ssid = next, next = ssid ? ssid->next : NULL) {
 260                 /*
 261                  * new_ssid has already been added to the list in
 262                  * wpas_wps_add_network(), so skip it.
 263                  */
 264                 if (ssid == new_ssid)
 265                         continue;
 266
 267                 if (ssid->bssid_set || new_ssid->bssid_set) {
 268                         if (ssid->bssid_set != new_ssid->bssid_set)
 269                                 continue;
 270                         if (os_memcmp(ssid->bssid, new_ssid->bssid, ETH_ALEN) !=
 271                             0)
 272                                 continue;
 273                 }
 274
 275                 /* compare SSID */
 276                 if (ssid->ssid_len == 0 || ssid->ssid_len != new_ssid->ssid_len)
 277                         continue;
 278
 279                 if (ssid->ssid && new_ssid->ssid) {
 280                         if (os_memcmp(ssid->ssid, new_ssid->ssid,
 281                                       ssid->ssid_len) != 0)
 282                                 continue;
 283                 } else if (ssid->ssid || new_ssid->ssid)
 284                         continue;
 285
 286                 /* compare security parameters */
 287                 if (ssid->auth_alg != new_ssid->auth_alg ||
 288                     ssid->key_mgmt != new_ssid->key_mgmt ||
 289                     (ssid->group_cipher != new_ssid->group_cipher &&
 290                      !(ssid->group_cipher & new_ssid->group_cipher &
 291                        WPA_CIPHER_CCMP)))
 292                         continue;
 293
 294                 /*
 295                  * Some existing WPS APs will send two creds in case they are
 296                  * configured for mixed mode operation (WPA+WPA2 and TKIP+CCMP).
 297                  * Try to merge these two creds if they are received in the same
 298                  * M8 message.
 299                  */
 300                 if (ssid->wps_run && ssid->wps_run == new_ssid->wps_run &&
 301                     wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) {
 302                         if (new_ssid->passphrase && ssid->passphrase &&
 303                             os_strcmp(new_ssid->passphrase, ssid->passphrase) !=
 304                             0) {
 305                                 wpa_printf(MSG_DEBUG,
 306                                            "WPS: M8 Creds with different passphrase - do not merge");
 307                                 continue;
 308                         }
 309
 310                         if (new_ssid->psk_set &&
 311                             (!ssid->psk_set ||
 312                              os_memcmp(new_ssid->psk, ssid->psk, 32) != 0)) {
 313                                 wpa_printf(MSG_DEBUG,
 314                                            "WPS: M8 Creds with different PSK - do not merge");
 315                                 continue;
 316                         }
 317
 318                         if ((new_ssid->passphrase && !ssid->passphrase) ||
 319                             (!new_ssid->passphrase && ssid->passphrase)) {
 320                                 wpa_printf(MSG_DEBUG,
 321                                            "WPS: M8 Creds with different passphrase/PSK type - do not merge");
 322                                 continue;
 323                         }
 324
 325                         wpa_printf(MSG_DEBUG,
 326                                    "WPS: Workaround - merge likely WPA/WPA2-mixed mode creds in same M8 message");
 327                         new_ssid->proto |= ssid->proto;
 328                         new_ssid->pairwise_cipher |= ssid->pairwise_cipher;
 329                 } else {
 330                         /*
 331                          * proto and pairwise_cipher difference matter for
 332                          * non-mixed-mode creds.
 333                          */
 334                         if (ssid->proto != new_ssid->proto ||
 335                             ssid->pairwise_cipher != new_ssid->pairwise_cipher)
 336                                 continue;
 337                 }
 338
 339                 /* Remove the duplicated older network entry. */
 340                 wpa_printf(MSG_DEBUG, "Remove duplicate network %d", ssid->id);
 341                 wpas_notify_network_removed(wpa_s, ssid);
 342                 if (wpa_s->current_ssid == ssid)
 343                         wpa_s->current_ssid = NULL;
 344                 wpa_config_remove_network(wpa_s->conf, ssid->id);
 345         }
 346 }
 347
 348
 349 static int wpa_supplicant_wps_cred(void *ctx,
 350                                    const struct wps_credential *cred)
 351 {
 352         struct wpa_supplicant *wpa_s = ctx;
 353         struct wpa_ssid *ssid = wpa_s->current_ssid;
 354         u16 auth_type;
 355 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
 356         int registrar = 0;
 357 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
 358
 359         if ((wpa_s->conf->wps_cred_processing == 1 ||
 360              wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) {
 361                 size_t blen = cred->cred_attr_len * 2 + 1;
 362                 char *buf = os_malloc(blen);
 363                 if (buf) {
 364                         wpa_snprintf_hex(buf, blen,
 365                                          cred->cred_attr, cred->cred_attr_len);
 366                         wpa_msg(wpa_s, MSG_INFO, "%s%s",
 367                                 WPS_EVENT_CRED_RECEIVED, buf);
 368                         os_free(buf);
 369                 }
 370
 371                 wpas_notify_wps_credential(wpa_s, cred);
 372         } else
 373                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED);
 374
 375         wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
 376                         cred->cred_attr, cred->cred_attr_len);
 377
 378         if (wpa_s->conf->wps_cred_processing == 1)
 379                 return 0;
 380
 381         wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
 382         wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
 383                    cred->auth_type);
 384         wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
 385         wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
 386         wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
 387                         cred->key, cred->key_len);
 388         wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
 389                    MAC2STR(cred->mac_addr));
 390
 391         auth_type = cred->auth_type;
 392         if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
 393                 wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode "
 394                            "auth_type into WPA2PSK");
 395                 auth_type = WPS_AUTH_WPA2PSK;
 396         }
 397
 398         if (auth_type != WPS_AUTH_OPEN &&
 399             auth_type != WPS_AUTH_WPAPSK &&
 400             auth_type != WPS_AUTH_WPA2PSK) {
 401                 wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
 402                            "unsupported authentication type 0x%x",
 403                            auth_type);
 404                 return 0;
 405         }
 406
 407         if (auth_type == WPS_AUTH_WPAPSK || auth_type == WPS_AUTH_WPA2PSK) {
 408                 if (cred->key_len < 8 || cred->key_len > 2 * PMK_LEN) {
 409                         wpa_printf(MSG_ERROR, "WPS: Reject PSK credential with "
 410                                    "invalid Network Key length %lu",
 411                                    (unsigned long) cred->key_len);
 412                         return -1;
 413                 }
 414         }
 415
 416         if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
 417                 wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based "
 418                            "on the received credential");
 419 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
 420                 if (ssid->eap.identity &&
 421                     ssid->eap.identity_len == WSC_ID_REGISTRAR_LEN &&
 422                     os_memcmp(ssid->eap.identity, WSC_ID_REGISTRAR,
 423                               WSC_ID_REGISTRAR_LEN) == 0)
 424                         registrar = 1;
 425 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
 426                 os_free(ssid->eap.identity);
 427                 ssid->eap.identity = NULL;
 428                 ssid->eap.identity_len = 0;
 429                 os_free(ssid->eap.phase1);
 430                 ssid->eap.phase1 = NULL;
 431                 os_free(ssid->eap.eap_methods);
 432                 ssid->eap.eap_methods = NULL;
 433                 if (!ssid->p2p_group) {
 434                         ssid->temporary = 0;
 435                         ssid->bssid_set = 0;
 436                 }
 437                 ssid->disabled_until.sec = 0;
 438                 ssid->disabled_until.usec = 0;
 439                 ssid->auth_failures = 0;
 440         } else {
 441                 wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the "
 442                            "received credential");
 443                 ssid = wpa_config_add_network(wpa_s->conf);
 444                 if (ssid == NULL)
 445                         return -1;
 446                 if (wpa_s->current_ssid) {
 447                         /*
 448                          * Should the GO issue multiple credentials for some
 449                          * reason, each credential should be marked as a
 450                          * temporary P2P group similarly to the one that gets
 451                          * marked as such based on the pre-configured values
 452                          * used for the WPS network block.
 453                          */
 454                         ssid->p2p_group = wpa_s->current_ssid->p2p_group;
 455                         ssid->temporary = wpa_s->current_ssid->temporary;
 456                 }
 457                 wpas_notify_network_added(wpa_s, ssid);
 458         }
 459
 460         wpa_config_set_network_defaults(ssid);
 461         ssid->wps_run = wpa_s->wps_run;
 462
 463         os_free(ssid->ssid);
 464         ssid->ssid = os_malloc(cred->ssid_len);
 465         if (ssid->ssid) {
 466                 os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len);
 467                 ssid->ssid_len = cred->ssid_len;
 468         }
 469
 470         switch (cred->encr_type) {
 471         case WPS_ENCR_NONE:
 472                 break;
 473         case WPS_ENCR_TKIP:
 474                 ssid->pairwise_cipher = WPA_CIPHER_TKIP;
 475                 break;
 476         case WPS_ENCR_AES:
 477                 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
 478                 if (wpa_s->drv_capa_known &&
 479                     (wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_GCMP)) {
 480                         ssid->pairwise_cipher |= WPA_CIPHER_GCMP;
 481                         ssid->group_cipher |= WPA_CIPHER_GCMP;
 482                 }
 483                 break;
 484         }
 485
 486         switch (auth_type) {
 487         case WPS_AUTH_OPEN:
 488                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 489                 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
 490                 ssid->proto = 0;
 491 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
 492                 if (registrar) {
 493                         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK
 494                                 "id=%d - Credentials for an open "
 495                                 "network disabled by default - use "
 496                                 "'select_network %d' to enable",
 497                                 ssid->id, ssid->id);
 498                         ssid->disabled = 1;
 499                 }
 500 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
 501                 break;
 502         case WPS_AUTH_WPAPSK:
 503                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 504                 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
 505                 ssid->proto = WPA_PROTO_WPA;
 506                 break;
 507         case WPS_AUTH_WPA2PSK:
 508                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 509                 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
 510                 ssid->proto = WPA_PROTO_RSN;
 511                 break;
 512         }
 513
 514         if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) {
 515                 if (cred->key_len == 2 * PMK_LEN) {
 516                         if (hexstr2bin((const char *) cred->key, ssid->psk,
 517                                        PMK_LEN)) {
 518                                 wpa_printf(MSG_ERROR, "WPS: Invalid Network "
 519                                            "Key");
 520                                 return -1;
 521                         }
 522                         ssid->psk_set = 1;
 523                         ssid->export_keys = 1;
 524                 } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) {
 525                         os_free(ssid->passphrase);
 526                         ssid->passphrase = os_malloc(cred->key_len + 1);
 527                         if (ssid->passphrase == NULL)
 528                                 return -1;
 529                         os_memcpy(ssid->passphrase, cred->key, cred->key_len);
 530                         ssid->passphrase[cred->key_len] = '\0';
 531                         wpa_config_update_psk(ssid);
 532                         ssid->export_keys = 1;
 533                 } else {
 534                         wpa_printf(MSG_ERROR, "WPS: Invalid Network Key "
 535                                    "length %lu",
 536                                    (unsigned long) cred->key_len);
 537                         return -1;
 538                 }
 539         }
 540
 541         wpas_wps_security_workaround(wpa_s, ssid, cred);
 542
 543         wpas_wps_remove_dup_network(wpa_s, ssid);
 544
 545 #ifndef CONFIG_NO_CONFIG_WRITE
 546         if (wpa_s->conf->update_config &&
 547             wpa_config_write(wpa_s->confname, wpa_s->conf)) {
 548                 wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration");
 549                 return -1;
 550         }
 551 #endif /* CONFIG_NO_CONFIG_WRITE */
 552
 553         /*
 554          * Optimize the post-WPS scan based on the channel used during
 555          * the provisioning in case EAP-Failure is not received.
 556          */
 557         wpa_s->after_wps = 5;
 558         wpa_s->wps_freq = wpa_s->assoc_freq;
 559
 560         return 0;
 561 }
 562
 563
 564 static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s,
 565                                          struct wps_event_m2d *m2d)
 566 {
 567         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D
 568                 "dev_password_id=%d config_error=%d",
 569                 m2d->dev_password_id, m2d->config_error);
 570         wpas_notify_wps_event_m2d(wpa_s, m2d);
 571 #ifdef CONFIG_P2P
 572         if (wpa_s->parent && wpa_s->parent != wpa_s) {
 573                 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_M2D
 574                         "dev_password_id=%d config_error=%d",
 575                         m2d->dev_password_id, m2d->config_error);
 576         }
 577         if (m2d->config_error == WPS_CFG_MULTIPLE_PBC_DETECTED) {
 578                 /*
 579                  * Notify P2P from eloop timeout to avoid issues with the
 580                  * interface getting removed while processing a message.
 581                  */
 582                 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb, wpa_s,
 583                                        NULL);
 584         }
 585 #endif /* CONFIG_P2P */
 586 }
 587
 588
 589 static void wpas_wps_clear_timeout(void *eloop_ctx, void *timeout_ctx)
 590 {
 591         struct wpa_supplicant *wpa_s = eloop_ctx;
 592         wpa_printf(MSG_DEBUG, "WPS: Clear WPS network from timeout");
 593         wpas_clear_wps(wpa_s);
 594 }
 595
 596
 597 static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
 598                                           struct wps_event_fail *fail)
 599 {
 600         if (fail->error_indication > 0 &&
 601             fail->error_indication < NUM_WPS_EI_VALUES) {
 602                 wpa_msg(wpa_s, MSG_INFO,
 603                         WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
 604                         fail->msg, fail->config_error, fail->error_indication,
 605                         wps_ei_str(fail->error_indication));
 606                 if (wpa_s->parent && wpa_s->parent != wpa_s)
 607                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 608                                 "msg=%d config_error=%d reason=%d (%s)",
 609                                 fail->msg, fail->config_error,
 610                                 fail->error_indication,
 611                                 wps_ei_str(fail->error_indication));
 612         } else {
 613                 wpa_msg(wpa_s, MSG_INFO,
 614                         WPS_EVENT_FAIL "msg=%d config_error=%d",
 615                         fail->msg, fail->config_error);
 616                 if (wpa_s->parent && wpa_s->parent != wpa_s)
 617                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 618                                 "msg=%d config_error=%d",
 619                                 fail->msg, fail->config_error);
 620         }
 621
 622         /*
 623          * Need to allow WPS processing to complete, e.g., by sending WSC_NACK.
 624          */
 625         wpa_printf(MSG_DEBUG, "WPS: Register timeout to clear WPS network");
 626         eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL);
 627         eloop_register_timeout(0, 100000, wpas_wps_clear_timeout, wpa_s, NULL);
 628
 629         wpas_notify_wps_event_fail(wpa_s, fail);
 630         wpas_p2p_wps_failed(wpa_s, fail);
 631 }
 632
 633
 634 static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx);
 635
 636 static void wpas_wps_reenable_networks(struct wpa_supplicant *wpa_s)
 637 {
 638         struct wpa_ssid *ssid;
 639         int changed = 0;
 640
 641         eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL);
 642
 643         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
 644                 if (ssid->disabled_for_connect && ssid->disabled) {
 645                         ssid->disabled_for_connect = 0;
 646                         ssid->disabled = 0;
 647                         wpas_notify_network_enabled_changed(wpa_s, ssid);
 648                         changed++;
 649                 }
 650         }
 651
 652         if (changed) {
 653 #ifndef CONFIG_NO_CONFIG_WRITE
 654                 if (wpa_s->conf->update_config &&
 655                     wpa_config_write(wpa_s->confname, wpa_s->conf)) {
 656                         wpa_printf(MSG_DEBUG, "WPS: Failed to update "
 657                                    "configuration");
 658                 }
 659 #endif /* CONFIG_NO_CONFIG_WRITE */
 660         }
 661 }
 662
 663
 664 static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx)
 665 {
 666         struct wpa_supplicant *wpa_s = eloop_ctx;
 667         /* Enable the networks disabled during wpas_wps_reassoc */
 668         wpas_wps_reenable_networks(wpa_s);
 669 }
 670
 671
 672 static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s)
 673 {
 674         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS);
 675         wpa_s->wps_success = 1;
 676         wpas_notify_wps_event_success(wpa_s);
 677         if (wpa_s->current_ssid)
 678                 wpas_clear_temp_disabled(wpa_s, wpa_s->current_ssid, 1);
 679         wpa_s->extra_blacklist_count = 0;
 680
 681         /*
 682          * Enable the networks disabled during wpas_wps_reassoc after 10
 683          * seconds. The 10 seconds timer is to allow the data connection to be
 684          * formed before allowing other networks to be selected.
 685          */
 686         eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s,
 687                                NULL);
 688
 689         wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0);
 690 }
 691
 692
 693 static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s,
 694                                                struct wps_event_er_ap *ap)
 695 {
 696         char uuid_str[100];
 697         char dev_type[WPS_DEV_TYPE_BUFSIZE];
 698
 699         uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
 700         if (ap->pri_dev_type)
 701                 wps_dev_type_bin2str(ap->pri_dev_type, dev_type,
 702                                      sizeof(dev_type));
 703         else
 704                 dev_type[0] = '\0';
 705
 706         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR
 707                 " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|",
 708                 uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state,
 709                 ap->friendly_name ? ap->friendly_name : "",
 710                 ap->manufacturer ? ap->manufacturer : "",
 711                 ap->model_description ? ap->model_description : "",
 712                 ap->model_name ? ap->model_name : "",
 713                 ap->manufacturer_url ? ap->manufacturer_url : "",
 714                 ap->model_url ? ap->model_url : "");
 715 }
 716
 717
 718 static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s,
 719                                                   struct wps_event_er_ap *ap)
 720 {
 721         char uuid_str[100];
 722         uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
 723         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str);
 724 }
 725
 726
 727 static void wpa_supplicant_wps_event_er_enrollee_add(
 728         struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
 729 {
 730         char uuid_str[100];
 731         char dev_type[WPS_DEV_TYPE_BUFSIZE];
 732
 733         uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
 734         if (enrollee->pri_dev_type)
 735                 wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type,
 736                                      sizeof(dev_type));
 737         else
 738                 dev_type[0] = '\0';
 739
 740         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR
 741                 " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s "
 742                 "|%s|%s|%s|%s|%s|",
 743                 uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received,
 744                 enrollee->config_methods, enrollee->dev_passwd_id, dev_type,
 745                 enrollee->dev_name ? enrollee->dev_name : "",
 746                 enrollee->manufacturer ? enrollee->manufacturer : "",
 747                 enrollee->model_name ? enrollee->model_name : "",
 748                 enrollee->model_number ? enrollee->model_number : "",
 749                 enrollee->serial_number ? enrollee->serial_number : "");
 750 }
 751
 752
 753 static void wpa_supplicant_wps_event_er_enrollee_remove(
 754         struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
 755 {
 756         char uuid_str[100];
 757         uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
 758         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR,
 759                 uuid_str, MAC2STR(enrollee->mac_addr));
 760 }
 761
 762
 763 static void wpa_supplicant_wps_event_er_ap_settings(
 764         struct wpa_supplicant *wpa_s,
 765         struct wps_event_er_ap_settings *ap_settings)
 766 {
 767         char uuid_str[100];
 768         char key_str[65];
 769         const struct wps_credential *cred = ap_settings->cred;
 770
 771         key_str[0] = '\0';
 772         if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
 773                 if (cred->key_len >= 8 && cred->key_len <= 64) {
 774                         os_memcpy(key_str, cred->key, cred->key_len);
 775                         key_str[cred->key_len] = '\0';
 776                 }
 777         }
 778
 779         uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str));
 780         /* Use wpa_msg_ctrl to avoid showing the key in debug log */
 781         wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS
 782                      "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x "
 783                      "key=%s",
 784                      uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len),
 785                      cred->auth_type, cred->encr_type, key_str);
 786 }
 787
 788
 789 static void wpa_supplicant_wps_event_er_set_sel_reg(
 790         struct wpa_supplicant *wpa_s,
 791         struct wps_event_er_set_selected_registrar *ev)
 792 {
 793         char uuid_str[100];
 794
 795         uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str));
 796         switch (ev->state) {
 797         case WPS_ER_SET_SEL_REG_START:
 798                 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
 799                         "uuid=%s state=START sel_reg=%d dev_passwd_id=%u "
 800                         "sel_reg_config_methods=0x%x",
 801                         uuid_str, ev->sel_reg, ev->dev_passwd_id,
 802                         ev->sel_reg_config_methods);
 803                 break;
 804         case WPS_ER_SET_SEL_REG_DONE:
 805                 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
 806                         "uuid=%s state=DONE", uuid_str);
 807                 break;
 808         case WPS_ER_SET_SEL_REG_FAILED:
 809                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG
 810                         "uuid=%s state=FAILED", uuid_str);
 811                 break;
 812         }
 813 }
 814
 815
 816 static void wpa_supplicant_wps_event(void *ctx, enum wps_event event,
 817                                      union wps_event_data *data)
 818 {
 819         struct wpa_supplicant *wpa_s = ctx;
 820         switch (event) {
 821         case WPS_EV_M2D:
 822                 wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d);
 823                 break;
 824         case WPS_EV_FAIL:
 825                 wpa_supplicant_wps_event_fail(wpa_s, &data->fail);
 826                 break;
 827         case WPS_EV_SUCCESS:
 828                 wpa_supplicant_wps_event_success(wpa_s);
 829                 break;
 830         case WPS_EV_PWD_AUTH_FAIL:
 831 #ifdef CONFIG_AP
 832                 if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee)
 833                         wpa_supplicant_ap_pwd_auth_fail(wpa_s);
 834 #endif /* CONFIG_AP */
 835                 break;
 836         case WPS_EV_PBC_OVERLAP:
 837                 break;
 838         case WPS_EV_PBC_TIMEOUT:
 839                 break;
 840         case WPS_EV_PBC_ACTIVE:
 841                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ACTIVE);
 842                 break;
 843         case WPS_EV_PBC_DISABLE:
 844                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_DISABLE);
 845                 break;
 846         case WPS_EV_ER_AP_ADD:
 847                 wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap);
 848                 break;
 849         case WPS_EV_ER_AP_REMOVE:
 850                 wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap);
 851                 break;
 852         case WPS_EV_ER_ENROLLEE_ADD:
 853                 wpa_supplicant_wps_event_er_enrollee_add(wpa_s,
 854                                                          &data->enrollee);
 855                 break;
 856         case WPS_EV_ER_ENROLLEE_REMOVE:
 857                 wpa_supplicant_wps_event_er_enrollee_remove(wpa_s,
 858                                                             &data->enrollee);
 859                 break;
 860         case WPS_EV_ER_AP_SETTINGS:
 861                 wpa_supplicant_wps_event_er_ap_settings(wpa_s,
 862                                                         &data->ap_settings);
 863                 break;
 864         case WPS_EV_ER_SET_SELECTED_REGISTRAR:
 865                 wpa_supplicant_wps_event_er_set_sel_reg(wpa_s,
 866                                                         &data->set_sel_reg);
 867                 break;
 868         case WPS_EV_AP_PIN_SUCCESS:
 869                 break;
 870         }
 871 }
 872
 873
 874 static int wpa_supplicant_wps_rf_band(void *ctx)
 875 {
 876         struct wpa_supplicant *wpa_s = ctx;
 877
 878         if (!wpa_s->current_ssid || !wpa_s->assoc_freq)
 879                 return 0;
 880
 881         return (wpa_s->assoc_freq > 2484) ? WPS_RF_50GHZ : WPS_RF_24GHZ;
 882 }
 883
 884
 885 enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid)
 886 {
 887         if (eap_is_wps_pbc_enrollee(&ssid->eap) ||
 888             eap_is_wps_pin_enrollee(&ssid->eap))
 889                 return WPS_REQ_ENROLLEE;
 890         else
 891                 return WPS_REQ_REGISTRAR;
 892 }
 893
 894
 895 static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
 896 {
 897         int id;
 898         struct wpa_ssid *ssid, *remove_ssid = NULL, *prev_current;
 899
 900         wpa_s->after_wps = 0;
 901         wpa_s->known_wps_freq = 0;
 902
 903         prev_current = wpa_s->current_ssid;
 904
 905         /* Enable the networks disabled during wpas_wps_reassoc */
 906         wpas_wps_reenable_networks(wpa_s);
 907
 908         eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
 909         eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL);
 910
 911         /* Remove any existing WPS network from configuration */
 912         ssid = wpa_s->conf->ssid;
 913         while (ssid) {
 914                 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
 915                         if (ssid == wpa_s->current_ssid) {
 916                                 wpa_supplicant_deauthenticate(
 917                                         wpa_s, WLAN_REASON_DEAUTH_LEAVING);
 918                         }
 919                         id = ssid->id;
 920                         remove_ssid = ssid;
 921                 } else
 922                         id = -1;
 923                 ssid = ssid->next;
 924                 if (id >= 0) {
 925                         if (prev_current == remove_ssid) {
 926                                 wpa_sm_set_config(wpa_s->wpa, NULL);
 927                                 eapol_sm_notify_config(wpa_s->eapol, NULL,
 928                                                        NULL);
 929                         }
 930                         wpas_notify_network_removed(wpa_s, remove_ssid);
 931                         wpa_config_remove_network(wpa_s->conf, id);
 932                 }
 933         }
 934
 935         wpas_wps_clear_ap_info(wpa_s);
 936 }
 937
 938
 939 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
 940 {
 941         struct wpa_supplicant *wpa_s = eloop_ctx;
 942         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
 943                 "out");
 944         wpas_clear_wps(wpa_s);
 945 }
 946
 947
 948 static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
 949                                               int registrar, const u8 *dev_addr,
 950                                               const u8 *bssid)
 951 {
 952         struct wpa_ssid *ssid;
 953
 954         ssid = wpa_config_add_network(wpa_s->conf);
 955         if (ssid == NULL)
 956                 return NULL;
 957         wpas_notify_network_added(wpa_s, ssid);
 958         wpa_config_set_network_defaults(ssid);
 959         ssid->temporary = 1;
 960         if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 ||
 961             wpa_config_set(ssid, "eap", "WSC", 0) < 0 ||
 962             wpa_config_set(ssid, "identity", registrar ?
 963                            "\"" WSC_ID_REGISTRAR "\"" :
 964                            "\"" WSC_ID_ENROLLEE "\"", 0) < 0) {
 965                 wpas_notify_network_removed(wpa_s, ssid);
 966                 wpa_config_remove_network(wpa_s->conf, ssid->id);
 967                 return NULL;
 968         }
 969
 970 #ifdef CONFIG_P2P
 971         if (dev_addr)
 972                 os_memcpy(ssid->go_p2p_dev_addr, dev_addr, ETH_ALEN);
 973 #endif /* CONFIG_P2P */
 974
 975         if (bssid) {
 976 #ifndef CONFIG_P2P
 977                 struct wpa_bss *bss;
 978                 int count = 0;
 979 #endif /* CONFIG_P2P */
 980
 981                 os_memcpy(ssid->bssid, bssid, ETH_ALEN);
 982                 ssid->bssid_set = 1;
 983
 984                 /*
 985                  * Note: With P2P, the SSID may change at the time the WPS
 986                  * provisioning is started, so better not filter the AP based
 987                  * on the current SSID in the scan results.
 988                  */
 989 #ifndef CONFIG_P2P
 990                 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
 991                         if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0)
 992                                 continue;
 993
 994                         os_free(ssid->ssid);
 995                         ssid->ssid = os_malloc(bss->ssid_len);
 996                         if (ssid->ssid == NULL)
 997                                 break;
 998                         os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
 999                         ssid->ssid_len = bss->ssid_len;
1000                         wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from "
1001                                           "scan results",
1002                                           ssid->ssid, ssid->ssid_len);
1003                         count++;
1004                 }
1005
1006                 if (count > 1) {
1007                         wpa_printf(MSG_DEBUG, "WPS: More than one SSID found "
1008                                    "for the AP; use wildcard");
1009                         os_free(ssid->ssid);
1010                         ssid->ssid = NULL;
1011                         ssid->ssid_len = 0;
1012                 }
1013 #endif /* CONFIG_P2P */
1014         }
1015
1016         return ssid;
1017 }
1018
1019
1020 static void wpas_wps_temp_disable(struct wpa_supplicant *wpa_s,
1021                                   struct wpa_ssid *selected)
1022 {
1023         struct wpa_ssid *ssid;
1024
1025         if (wpa_s->current_ssid)
1026                 wpa_supplicant_deauthenticate(
1027                         wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1028
1029         /* Mark all other networks disabled and trigger reassociation */
1030         ssid = wpa_s->conf->ssid;
1031         while (ssid) {
1032                 int was_disabled = ssid->disabled;
1033                 ssid->disabled_for_connect = 0;
1034                 /*
1035                  * In case the network object corresponds to a persistent group
1036                  * then do not send out network disabled signal. In addition,
1037                  * do not change disabled status of persistent network objects
1038                  * from 2 to 1 should we connect to another network.
1039                  */
1040                 if (was_disabled != 2) {
1041                         ssid->disabled = ssid != selected;
1042                         if (was_disabled != ssid->disabled) {
1043                                 if (ssid->disabled)
1044                                         ssid->disabled_for_connect = 1;
1045                                 wpas_notify_network_enabled_changed(wpa_s,
1046                                                                     ssid);
1047                         }
1048                 }
1049                 ssid = ssid->next;
1050         }
1051 }
1052
1053
1054 static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
1055                              struct wpa_ssid *selected, const u8 *bssid,
1056                              int freq)
1057 {
1058         struct wpa_bss *bss;
1059
1060         wpa_s->wps_run++;
1061         if (wpa_s->wps_run == 0)
1062                 wpa_s->wps_run++;
1063         wpa_s->after_wps = 0;
1064         wpa_s->known_wps_freq = 0;
1065         if (freq) {
1066                 wpa_s->after_wps = 5;
1067                 wpa_s->wps_freq = freq;
1068         } else if (bssid) {
1069                 bss = wpa_bss_get_bssid_latest(wpa_s, bssid);
1070                 if (bss && bss->freq > 0) {
1071                         wpa_s->known_wps_freq = 1;
1072                         wpa_s->wps_freq = bss->freq;
1073                 }
1074         }
1075
1076         wpas_wps_temp_disable(wpa_s, selected);
1077
1078         wpa_s->disconnected = 0;
1079         wpa_s->reassociate = 1;
1080         wpa_s->scan_runs = 0;
1081         wpa_s->normal_scans = 0;
1082         wpa_s->wps_success = 0;
1083         wpa_s->blacklist_cleared = 0;
1084
1085         wpa_supplicant_cancel_sched_scan(wpa_s);
1086         wpa_supplicant_req_scan(wpa_s, 0, 0);
1087 }
1088
1089
1090 int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
1091                        int p2p_group)
1092 {
1093         struct wpa_ssid *ssid;
1094         wpas_clear_wps(wpa_s);
1095         ssid = wpas_wps_add_network(wpa_s, 0, NULL, bssid);
1096         if (ssid == NULL)
1097                 return -1;
1098         ssid->temporary = 1;
1099         ssid->p2p_group = p2p_group;
1100 #ifdef CONFIG_P2P
1101         if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
1102                 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
1103                 if (ssid->ssid) {
1104                         ssid->ssid_len = wpa_s->go_params->ssid_len;
1105                         os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
1106                                   ssid->ssid_len);
1107                         wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
1108                                           "SSID", ssid->ssid, ssid->ssid_len);
1109                 }
1110         }
1111 #endif /* CONFIG_P2P */
1112         if (wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0) < 0)
1113                 return -1;
1114         if (wpa_s->wps_fragment_size)
1115                 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
1116         eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1117                                wpa_s, NULL);
1118         wpas_wps_reassoc(wpa_s, ssid, bssid, 0);
1119         return 0;
1120 }
1121
1122
1123 static int wpas_wps_start_dev_pw(struct wpa_supplicant *wpa_s,
1124                                  const u8 *dev_addr, const u8 *bssid,
1125                                  const char *pin, int p2p_group, u16 dev_pw_id,
1126                                  const u8 *peer_pubkey_hash,
1127                                  const u8 *ssid_val, size_t ssid_len, int freq)
1128 {
1129         struct wpa_ssid *ssid;
1130         char val[128 + 2 * WPS_OOB_PUBKEY_HASH_LEN];
1131         unsigned int rpin = 0;
1132         char hash[2 * WPS_OOB_PUBKEY_HASH_LEN + 10];
1133
1134         wpas_clear_wps(wpa_s);
1135         if (bssid && is_zero_ether_addr(bssid))
1136                 bssid = NULL;
1137         ssid = wpas_wps_add_network(wpa_s, 0, dev_addr, bssid);
1138         if (ssid == NULL) {
1139                 wpa_printf(MSG_DEBUG, "WPS: Could not add network");
1140                 return -1;
1141         }
1142         ssid->temporary = 1;
1143         ssid->p2p_group = p2p_group;
1144         if (ssid_val) {
1145                 ssid->ssid = os_malloc(ssid_len);
1146                 if (ssid->ssid) {
1147                         os_memcpy(ssid->ssid, ssid_val, ssid_len);
1148                         ssid->ssid_len = ssid_len;
1149                 }
1150         }
1151         if (peer_pubkey_hash) {
1152                 os_memcpy(hash, " pkhash=", 8);
1153                 wpa_snprintf_hex_uppercase(hash + 8, sizeof(hash) - 8,
1154                                            peer_pubkey_hash,
1155                                            WPS_OOB_PUBKEY_HASH_LEN);
1156         } else {
1157                 hash[0] = '\0';
1158         }
1159 #ifdef CONFIG_P2P
1160         if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
1161                 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
1162                 if (ssid->ssid) {
1163                         ssid->ssid_len = wpa_s->go_params->ssid_len;
1164                         os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
1165                                   ssid->ssid_len);
1166                         wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
1167                                           "SSID", ssid->ssid, ssid->ssid_len);
1168                 }
1169         }
1170 #endif /* CONFIG_P2P */
1171         if (pin)
1172                 os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u%s\"",
1173                             pin, dev_pw_id, hash);
1174         else if (pin == NULL && dev_pw_id == DEV_PW_NFC_CONNECTION_HANDOVER) {
1175                 os_snprintf(val, sizeof(val), "\"dev_pw_id=%u%s\"",
1176                             dev_pw_id, hash);
1177         } else {
1178                 rpin = wps_generate_pin();
1179                 os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u%s\"",
1180                             rpin, dev_pw_id, hash);
1181         }
1182         if (wpa_config_set(ssid, "phase1", val, 0) < 0) {
1183                 wpa_printf(MSG_DEBUG, "WPS: Failed to set phase1 '%s'", val);
1184                 return -1;
1185         }
1186         if (wpa_s->wps_fragment_size)
1187                 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
1188         eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1189                                wpa_s, NULL);
1190         wpa_s->wps_ap_iter = 1;
1191         wpas_wps_reassoc(wpa_s, ssid, bssid, freq);
1192         return rpin;
1193 }
1194
1195
1196 int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
1197                        const char *pin, int p2p_group, u16 dev_pw_id)
1198 {
1199         return wpas_wps_start_dev_pw(wpa_s, NULL, bssid, pin, p2p_group,
1200                                      dev_pw_id, NULL, NULL, 0, 0);
1201 }
1202
1203
1204 /* Cancel the wps pbc/pin requests */
1205 int wpas_wps_cancel(struct wpa_supplicant *wpa_s)
1206 {
1207 #ifdef CONFIG_AP
1208         if (wpa_s->ap_iface) {
1209                 wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode");
1210                 return wpa_supplicant_ap_wps_cancel(wpa_s);
1211         }
1212 #endif /* CONFIG_AP */
1213
1214         if (wpa_s->wpa_state == WPA_SCANNING ||
1215             wpa_s->wpa_state == WPA_DISCONNECTED) {
1216                 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan");
1217                 wpa_supplicant_cancel_scan(wpa_s);
1218                 wpas_clear_wps(wpa_s);
1219         } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
1220                 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - "
1221                            "deauthenticate");
1222                 wpa_supplicant_deauthenticate(wpa_s,
1223                                               WLAN_REASON_DEAUTH_LEAVING);
1224                 wpas_clear_wps(wpa_s);
1225         } else {
1226                 wpas_wps_reenable_networks(wpa_s);
1227                 wpas_wps_clear_ap_info(wpa_s);
1228                 if (eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL) >
1229                     0)
1230                         wpas_clear_wps(wpa_s);
1231         }
1232
1233         wpa_s->after_wps = 0;
1234
1235         return 0;
1236 }
1237
1238
1239 int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
1240                        const char *pin, struct wps_new_ap_settings *settings)
1241 {
1242         struct wpa_ssid *ssid;
1243         char val[200];
1244         char *pos, *end;
1245         int res;
1246
1247         if (!pin)
1248                 return -1;
1249         wpas_clear_wps(wpa_s);
1250         ssid = wpas_wps_add_network(wpa_s, 1, NULL, bssid);
1251         if (ssid == NULL)
1252                 return -1;
1253         ssid->temporary = 1;
1254         pos = val;
1255         end = pos + sizeof(val);
1256         res = os_snprintf(pos, end - pos, "\"pin=%s", pin);
1257         if (res < 0 || res >= end - pos)
1258                 return -1;
1259         pos += res;
1260         if (settings) {
1261                 res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s "
1262                                   "new_encr=%s new_key=%s",
1263                                   settings->ssid_hex, settings->auth,
1264                                   settings->encr, settings->key_hex);
1265                 if (res < 0 || res >= end - pos)
1266                         return -1;
1267                 pos += res;
1268         }
1269         res = os_snprintf(pos, end - pos, "\"");
1270         if (res < 0 || res >= end - pos)
1271                 return -1;
1272         if (wpa_config_set(ssid, "phase1", val, 0) < 0)
1273                 return -1;
1274         if (wpa_s->wps_fragment_size)
1275                 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
1276         eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1277                                wpa_s, NULL);
1278         wpas_wps_reassoc(wpa_s, ssid, bssid, 0);
1279         return 0;
1280 }
1281
1282
1283 static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr,
1284                                const u8 *p2p_dev_addr, const u8 *psk,
1285                                size_t psk_len)
1286 {
1287         if (is_zero_ether_addr(p2p_dev_addr)) {
1288                 wpa_printf(MSG_DEBUG,
1289                            "Received new WPA/WPA2-PSK from WPS for STA " MACSTR,
1290                            MAC2STR(mac_addr));
1291         } else {
1292                 wpa_printf(MSG_DEBUG,
1293                            "Received new WPA/WPA2-PSK from WPS for STA " MACSTR
1294                            " P2P Device Addr " MACSTR,
1295                            MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
1296         }
1297         wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
1298
1299         /* TODO */
1300
1301         return 0;
1302 }
1303
1304
1305 static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
1306                                    const struct wps_device_data *dev)
1307 {
1308         char uuid[40], txt[400];
1309         int len;
1310         char devtype[WPS_DEV_TYPE_BUFSIZE];
1311         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
1312                 return;
1313         wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid);
1314         len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR
1315                           " [%s|%s|%s|%s|%s|%s]",
1316                           uuid, MAC2STR(dev->mac_addr), dev->device_name,
1317                           dev->manufacturer, dev->model_name,
1318                           dev->model_number, dev->serial_number,
1319                           wps_dev_type_bin2str(dev->pri_dev_type, devtype,
1320                                                sizeof(devtype)));
1321         if (len > 0 && len < (int) sizeof(txt))
1322                 wpa_printf(MSG_INFO, "%s", txt);
1323 }
1324
1325
1326 static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id,
1327                                     u16 sel_reg_config_methods)
1328 {
1329 #ifdef CONFIG_WPS_ER
1330         struct wpa_supplicant *wpa_s = ctx;
1331
1332         if (wpa_s->wps_er == NULL)
1333                 return;
1334         wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d "
1335                    "dev_password_id=%u sel_reg_config_methods=0x%x",
1336                    sel_reg, dev_passwd_id, sel_reg_config_methods);
1337         wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id,
1338                            sel_reg_config_methods);
1339 #endif /* CONFIG_WPS_ER */
1340 }
1341
1342
1343 static u16 wps_fix_config_methods(u16 config_methods)
1344 {
1345         if ((config_methods &
1346              (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
1347               WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
1348                 wpa_printf(MSG_INFO, "WPS: Converting display to "
1349                            "virtual_display for WPS 2.0 compliance");
1350                 config_methods |= WPS_CONFIG_VIRT_DISPLAY;
1351         }
1352         if ((config_methods &
1353              (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
1354               WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
1355                 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
1356                            "virtual_push_button for WPS 2.0 compliance");
1357                 config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
1358         }
1359
1360         return config_methods;
1361 }
1362
1363
1364 static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s,
1365                               struct wps_context *wps)
1366 {
1367         char buf[50];
1368         const char *src;
1369
1370         if (is_nil_uuid(wpa_s->conf->uuid)) {
1371                 struct wpa_supplicant *first;
1372                 first = wpa_s->global->ifaces;
1373                 while (first && first->next)
1374                         first = first->next;
1375                 if (first && first != wpa_s) {
1376                         if (wps != wpa_s->global->ifaces->wps)
1377                                 os_memcpy(wps->uuid,
1378                                           wpa_s->global->ifaces->wps->uuid,
1379                                           WPS_UUID_LEN);
1380                         src = "from the first interface";
1381                 } else {
1382                         uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
1383                         src = "based on MAC address";
1384                 }
1385         } else {
1386                 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
1387                 src = "based on configuration";
1388         }
1389
1390         uuid_bin2str(wps->uuid, buf, sizeof(buf));
1391         wpa_dbg(wpa_s, MSG_DEBUG, "WPS: UUID %s: %s", src, buf);
1392 }
1393
1394
1395 static void wpas_wps_set_vendor_ext_m1(struct wpa_supplicant *wpa_s,
1396                                        struct wps_context *wps)
1397 {
1398         wpabuf_free(wps->dev.vendor_ext_m1);
1399         wps->dev.vendor_ext_m1 = NULL;
1400
1401         if (wpa_s->conf->wps_vendor_ext_m1) {
1402                 wps->dev.vendor_ext_m1 =
1403                         wpabuf_dup(wpa_s->conf->wps_vendor_ext_m1);
1404                 if (!wps->dev.vendor_ext_m1) {
1405                         wpa_printf(MSG_ERROR, "WPS: Cannot "
1406                                    "allocate memory for vendor_ext_m1");
1407                 }
1408         }
1409 }
1410
1411
1412 int wpas_wps_init(struct wpa_supplicant *wpa_s)
1413 {
1414         struct wps_context *wps;
1415         struct wps_registrar_config rcfg;
1416         struct hostapd_hw_modes *modes;
1417         u16 m;
1418
1419         wps = os_zalloc(sizeof(*wps));
1420         if (wps == NULL)
1421                 return -1;
1422
1423         wps->cred_cb = wpa_supplicant_wps_cred;
1424         wps->event_cb = wpa_supplicant_wps_event;
1425         wps->rf_band_cb = wpa_supplicant_wps_rf_band;
1426         wps->cb_ctx = wpa_s;
1427
1428         wps->dev.device_name = wpa_s->conf->device_name;
1429         wps->dev.manufacturer = wpa_s->conf->manufacturer;
1430         wps->dev.model_name = wpa_s->conf->model_name;
1431         wps->dev.model_number = wpa_s->conf->model_number;
1432         wps->dev.serial_number = wpa_s->conf->serial_number;
1433         wps->config_methods =
1434                 wps_config_methods_str2bin(wpa_s->conf->config_methods);
1435         if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1436             (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1437                 wpa_printf(MSG_ERROR, "WPS: Both Label and Display config "
1438                            "methods are not allowed at the same time");
1439                 os_free(wps);
1440                 return -1;
1441         }
1442         wps->config_methods = wps_fix_config_methods(wps->config_methods);
1443         wps->dev.config_methods = wps->config_methods;
1444         os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1445                   WPS_DEV_TYPE_LEN);
1446
1447         wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1448         os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1449                   WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types);
1450
1451         wpas_wps_set_vendor_ext_m1(wpa_s, wps);
1452
1453         wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1454         modes = wpa_s->hw.modes;
1455         if (modes) {
1456                 for (m = 0; m < wpa_s->hw.num_modes; m++) {
1457                         if (modes[m].mode == HOSTAPD_MODE_IEEE80211B ||
1458                             modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1459                                 wps->dev.rf_bands |= WPS_RF_24GHZ;
1460                         else if (modes[m].mode == HOSTAPD_MODE_IEEE80211A)
1461                                 wps->dev.rf_bands |= WPS_RF_50GHZ;
1462                 }
1463         }
1464         if (wps->dev.rf_bands == 0) {
1465                 /*
1466                  * Default to claiming support for both bands if the driver
1467                  * does not provide support for fetching supported bands.
1468                  */
1469                 wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ;
1470         }
1471         os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
1472         wpas_wps_set_uuid(wpa_s, wps);
1473
1474         wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
1475         wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
1476
1477         os_memset(&rcfg, 0, sizeof(rcfg));
1478         rcfg.new_psk_cb = wpas_wps_new_psk_cb;
1479         rcfg.pin_needed_cb = wpas_wps_pin_needed_cb;
1480         rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb;
1481         rcfg.cb_ctx = wpa_s;
1482
1483         wps->registrar = wps_registrar_init(wps, &rcfg);
1484         if (wps->registrar == NULL) {
1485                 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar");
1486                 os_free(wps);
1487                 return -1;
1488         }
1489
1490         wpa_s->wps = wps;
1491
1492         return 0;
1493 }
1494
1495
1496 #ifdef CONFIG_WPS_ER
1497 static void wpas_wps_nfc_clear(struct wps_context *wps)
1498 {
1499         wps->ap_nfc_dev_pw_id = 0;
1500         wpabuf_free(wps->ap_nfc_dh_pubkey);
1501         wps->ap_nfc_dh_pubkey = NULL;
1502         wpabuf_free(wps->ap_nfc_dh_privkey);
1503         wps->ap_nfc_dh_privkey = NULL;
1504         wpabuf_free(wps->ap_nfc_dev_pw);
1505         wps->ap_nfc_dev_pw = NULL;
1506 }
1507 #endif /* CONFIG_WPS_ER */
1508
1509
1510 void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
1511 {
1512         wpas_wps_assoc_with_cred_cancel(wpa_s);
1513         eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
1514         eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL);
1515         eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL);
1516         wpas_wps_clear_ap_info(wpa_s);
1517
1518 #ifdef CONFIG_P2P
1519         eloop_cancel_timeout(wpas_p2p_pbc_overlap_cb, wpa_s, NULL);
1520 #endif /* CONFIG_P2P */
1521
1522         if (wpa_s->wps == NULL)
1523                 return;
1524
1525 #ifdef CONFIG_WPS_ER
1526         wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1527         wpa_s->wps_er = NULL;
1528         wpas_wps_nfc_clear(wpa_s->wps);
1529 #endif /* CONFIG_WPS_ER */
1530
1531         wps_registrar_deinit(wpa_s->wps->registrar);
1532         wpabuf_free(wpa_s->wps->dh_pubkey);
1533         wpabuf_free(wpa_s->wps->dh_privkey);
1534         wpabuf_free(wpa_s->wps->dev.vendor_ext_m1);
1535         os_free(wpa_s->wps->network_key);
1536         os_free(wpa_s->wps);
1537         wpa_s->wps = NULL;
1538 }
1539
1540
1541 int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
1542                             struct wpa_ssid *ssid, struct wpa_bss *bss)
1543 {
1544         struct wpabuf *wps_ie;
1545
1546         if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
1547                 return -1;
1548
1549         wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1550         if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1551                 if (!wps_ie) {
1552                         wpa_printf(MSG_DEBUG, "   skip - non-WPS AP");
1553                         return 0;
1554                 }
1555
1556                 if (!wps_is_selected_pbc_registrar(wps_ie)) {
1557                         wpa_printf(MSG_DEBUG, "   skip - WPS AP "
1558                                    "without active PBC Registrar");
1559                         wpabuf_free(wps_ie);
1560                         return 0;
1561                 }
1562
1563                 /* TODO: overlap detection */
1564                 wpa_printf(MSG_DEBUG, "   selected based on WPS IE "
1565                            "(Active PBC)");
1566                 wpabuf_free(wps_ie);
1567                 return 1;
1568         }
1569
1570         if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1571                 if (!wps_ie) {
1572                         wpa_printf(MSG_DEBUG, "   skip - non-WPS AP");
1573                         return 0;
1574                 }
1575
1576                 /*
1577                  * Start with WPS APs that advertise our address as an
1578                  * authorized MAC (v2.0) or active PIN Registrar (v1.0) and
1579                  * allow any WPS AP after couple of scans since some APs do not
1580                  * set Selected Registrar attribute properly when using
1581                  * external Registrar.
1582                  */
1583                 if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) {
1584                         if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG) {
1585                                 wpa_printf(MSG_DEBUG, "   skip - WPS AP "
1586                                            "without active PIN Registrar");
1587                                 wpabuf_free(wps_ie);
1588                                 return 0;
1589                         }
1590                         wpa_printf(MSG_DEBUG, "   selected based on WPS IE");
1591                 } else {
1592                         wpa_printf(MSG_DEBUG, "   selected based on WPS IE "
1593                                    "(Authorized MAC or Active PIN)");
1594                 }
1595                 wpabuf_free(wps_ie);
1596                 return 1;
1597         }
1598
1599         if (wps_ie) {
1600                 wpa_printf(MSG_DEBUG, "   selected based on WPS IE");
1601                 wpabuf_free(wps_ie);
1602                 return 1;
1603         }
1604
1605         return -1;
1606 }
1607
1608
1609 int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
1610                               struct wpa_ssid *ssid,
1611                               struct wpa_bss *bss)
1612 {
1613         struct wpabuf *wps_ie = NULL;
1614         int ret = 0;
1615
1616         if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1617                 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1618                 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) {
1619                         /* allow wildcard SSID for WPS PBC */
1620                         ret = 1;
1621                 }
1622         } else if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1623                 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1624                 if (wps_ie &&
1625                     (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) ||
1626                      wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) {
1627                         /* allow wildcard SSID for WPS PIN */
1628                         ret = 1;
1629                 }
1630         }
1631
1632         if (!ret && ssid->bssid_set &&
1633             os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) {
1634                 /* allow wildcard SSID due to hardcoded BSSID match */
1635                 ret = 1;
1636         }
1637
1638 #ifdef CONFIG_WPS_STRICT
1639         if (wps_ie) {
1640                 if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len >
1641                                                    0, bss->bssid) < 0)
1642                         ret = 0;
1643                 if (bss->beacon_ie_len) {
1644                         struct wpabuf *bcn_wps;
1645                         bcn_wps = wpa_bss_get_vendor_ie_multi_beacon(
1646                                 bss, WPS_IE_VENDOR_TYPE);
1647                         if (bcn_wps == NULL) {
1648                                 wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE "
1649                                            "missing from AP Beacon");
1650                                 ret = 0;
1651                         } else {
1652                                 if (wps_validate_beacon(wps_ie) < 0)
1653                                         ret = 0;
1654                                 wpabuf_free(bcn_wps);
1655                         }
1656                 }
1657         }
1658 #endif /* CONFIG_WPS_STRICT */
1659
1660         wpabuf_free(wps_ie);
1661
1662         return ret;
1663 }
1664
1665
1666 int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
1667                               struct wpa_bss *selected, struct wpa_ssid *ssid)
1668 {
1669         const u8 *sel_uuid, *uuid;
1670         struct wpabuf *wps_ie;
1671         int ret = 0;
1672         struct wpa_bss *bss;
1673
1674         if (!eap_is_wps_pbc_enrollee(&ssid->eap))
1675                 return 0;
1676
1677         wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is "
1678                    "present in scan results; selected BSSID " MACSTR,
1679                    MAC2STR(selected->bssid));
1680
1681         /* Make sure that only one AP is in active PBC mode */
1682         wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE);
1683         if (wps_ie) {
1684                 sel_uuid = wps_get_uuid_e(wps_ie);
1685                 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS",
1686                             sel_uuid, UUID_LEN);
1687         } else {
1688                 wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include "
1689                            "WPS IE?!");
1690                 sel_uuid = NULL;
1691         }
1692
1693         dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1694                 struct wpabuf *ie;
1695                 if (bss == selected)
1696                         continue;
1697                 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1698                 if (!ie)
1699                         continue;
1700                 if (!wps_is_selected_pbc_registrar(ie)) {
1701                         wpabuf_free(ie);
1702                         continue;
1703                 }
1704                 wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: "
1705                            MACSTR, MAC2STR(bss->bssid));
1706                 uuid = wps_get_uuid_e(ie);
1707                 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS",
1708                             uuid, UUID_LEN);
1709                 if (sel_uuid == NULL || uuid == NULL ||
1710                     os_memcmp(sel_uuid, uuid, UUID_LEN) != 0) {
1711                         ret = 1; /* PBC overlap */
1712                         wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: "
1713                                 MACSTR " and " MACSTR,
1714                                 MAC2STR(selected->bssid),
1715                                 MAC2STR(bss->bssid));
1716                         wpabuf_free(ie);
1717                         break;
1718                 }
1719
1720                 /* TODO: verify that this is reasonable dual-band situation */
1721
1722                 wpabuf_free(ie);
1723         }
1724
1725         wpabuf_free(wps_ie);
1726
1727         return ret;
1728 }
1729
1730
1731 void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
1732 {
1733         struct wpa_bss *bss;
1734         unsigned int pbc = 0, auth = 0, pin = 0, wps = 0;
1735
1736         if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED)
1737                 return;
1738
1739         dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1740                 struct wpabuf *ie;
1741                 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1742                 if (!ie)
1743                         continue;
1744                 if (wps_is_selected_pbc_registrar(ie))
1745                         pbc++;
1746                 else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0))
1747                         auth++;
1748                 else if (wps_is_selected_pin_registrar(ie))
1749                         pin++;
1750                 else
1751                         wps++;
1752                 wpabuf_free(ie);
1753         }
1754
1755         if (pbc)
1756                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC);
1757         else if (auth)
1758                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH);
1759         else if (pin)
1760                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN);
1761         else if (wps)
1762                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE);
1763 }
1764
1765
1766 int wpas_wps_searching(struct wpa_supplicant *wpa_s)
1767 {
1768         struct wpa_ssid *ssid;
1769
1770         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1771                 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled)
1772                         return 1;
1773         }
1774
1775         return 0;
1776 }
1777
1778
1779 int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
1780                               char *end)
1781 {
1782         struct wpabuf *wps_ie;
1783         int ret;
1784
1785         wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA);
1786         if (wps_ie == NULL)
1787                 return 0;
1788
1789         ret = wps_attr_text(wps_ie, buf, end);
1790         wpabuf_free(wps_ie);
1791         return ret;
1792 }
1793
1794
1795 int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter)
1796 {
1797 #ifdef CONFIG_WPS_ER
1798         if (wpa_s->wps_er) {
1799                 wps_er_refresh(wpa_s->wps_er);
1800                 return 0;
1801         }
1802         wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter);
1803         if (wpa_s->wps_er == NULL)
1804                 return -1;
1805         return 0;
1806 #else /* CONFIG_WPS_ER */
1807         return 0;
1808 #endif /* CONFIG_WPS_ER */
1809 }
1810
1811
1812 int wpas_wps_er_stop(struct wpa_supplicant *wpa_s)
1813 {
1814 #ifdef CONFIG_WPS_ER
1815         wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1816         wpa_s->wps_er = NULL;
1817 #endif /* CONFIG_WPS_ER */
1818         return 0;
1819 }
1820
1821
1822 #ifdef CONFIG_WPS_ER
1823 int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr,
1824                         const char *uuid, const char *pin)
1825 {
1826         u8 u[UUID_LEN];
1827         const u8 *use_uuid = NULL;
1828         u8 addr_buf[ETH_ALEN];
1829
1830         if (os_strcmp(uuid, "any") == 0) {
1831         } else if (uuid_str2bin(uuid, u) == 0) {
1832                 use_uuid = u;
1833         } else if (hwaddr_aton(uuid, addr_buf) == 0) {
1834                 use_uuid = wps_er_get_sta_uuid(wpa_s->wps_er, addr_buf);
1835                 if (use_uuid == NULL)
1836                         return -1;
1837         } else
1838                 return -1;
1839         return wps_registrar_add_pin(wpa_s->wps->registrar, addr,
1840                                      use_uuid,
1841                                      (const u8 *) pin, os_strlen(pin), 300);
1842 }
1843
1844
1845 int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid)
1846 {
1847         u8 u[UUID_LEN], *use_uuid = NULL;
1848         u8 addr[ETH_ALEN], *use_addr = NULL;
1849
1850         if (uuid_str2bin(uuid, u) == 0)
1851                 use_uuid = u;
1852         else if (hwaddr_aton(uuid, addr) == 0)
1853                 use_addr = addr;
1854         else
1855                 return -1;
1856         return wps_er_pbc(wpa_s->wps_er, use_uuid, use_addr);
1857 }
1858
1859
1860 int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid,
1861                       const char *pin)
1862 {
1863         u8 u[UUID_LEN], *use_uuid = NULL;
1864         u8 addr[ETH_ALEN], *use_addr = NULL;
1865
1866         if (uuid_str2bin(uuid, u) == 0)
1867                 use_uuid = u;
1868         else if (hwaddr_aton(uuid, addr) == 0)
1869                 use_addr = addr;
1870         else
1871                 return -1;
1872
1873         return wps_er_learn(wpa_s->wps_er, use_uuid, use_addr, (const u8 *) pin,
1874                             os_strlen(pin));
1875 }
1876
1877
1878 static int wpas_wps_network_to_cred(struct wpa_ssid *ssid,
1879                                     struct wps_credential *cred)
1880 {
1881         os_memset(cred, 0, sizeof(*cred));
1882         if (ssid->ssid_len > 32)
1883                 return -1;
1884         os_memcpy(cred->ssid, ssid->ssid, ssid->ssid_len);
1885         cred->ssid_len = ssid->ssid_len;
1886         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
1887                 cred->auth_type = (ssid->proto & WPA_PROTO_RSN) ?
1888                         WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK;
1889                 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
1890                         cred->encr_type = WPS_ENCR_AES;
1891                 else
1892                         cred->encr_type = WPS_ENCR_TKIP;
1893                 if (ssid->passphrase) {
1894                         cred->key_len = os_strlen(ssid->passphrase);
1895                         if (cred->key_len >= 64)
1896                                 return -1;
1897                         os_memcpy(cred->key, ssid->passphrase, cred->key_len);
1898                 } else if (ssid->psk_set) {
1899                         cred->key_len = 32;
1900                         os_memcpy(cred->key, ssid->psk, 32);
1901                 } else
1902                         return -1;
1903         } else {
1904                 cred->auth_type = WPS_AUTH_OPEN;
1905                 cred->encr_type = WPS_ENCR_NONE;
1906         }
1907
1908         return 0;
1909 }
1910
1911
1912 int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid,
1913                            int id)
1914 {
1915         u8 u[UUID_LEN], *use_uuid = NULL;
1916         u8 addr[ETH_ALEN], *use_addr = NULL;
1917         struct wpa_ssid *ssid;
1918         struct wps_credential cred;
1919
1920         if (uuid_str2bin(uuid, u) == 0)
1921                 use_uuid = u;
1922         else if (hwaddr_aton(uuid, addr) == 0)
1923                 use_addr = addr;
1924         else
1925                 return -1;
1926         ssid = wpa_config_get_network(wpa_s->conf, id);
1927         if (ssid == NULL || ssid->ssid == NULL)
1928                 return -1;
1929
1930         if (wpas_wps_network_to_cred(ssid, &cred) < 0)
1931                 return -1;
1932         return wps_er_set_config(wpa_s->wps_er, use_uuid, use_addr, &cred);
1933 }
1934
1935
1936 int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid,
1937                        const char *pin, struct wps_new_ap_settings *settings)
1938 {
1939         u8 u[UUID_LEN], *use_uuid = NULL;
1940         u8 addr[ETH_ALEN], *use_addr = NULL;
1941         struct wps_credential cred;
1942         size_t len;
1943
1944         if (uuid_str2bin(uuid, u) == 0)
1945                 use_uuid = u;
1946         else if (hwaddr_aton(uuid, addr) == 0)
1947                 use_addr = addr;
1948         else
1949                 return -1;
1950         if (settings->ssid_hex == NULL || settings->auth == NULL ||
1951             settings->encr == NULL || settings->key_hex == NULL)
1952                 return -1;
1953
1954         os_memset(&cred, 0, sizeof(cred));
1955         len = os_strlen(settings->ssid_hex);
1956         if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
1957             hexstr2bin(settings->ssid_hex, cred.ssid, len / 2))
1958                 return -1;
1959         cred.ssid_len = len / 2;
1960
1961         len = os_strlen(settings->key_hex);
1962         if ((len & 1) || len > 2 * sizeof(cred.key) ||
1963             hexstr2bin(settings->key_hex, cred.key, len / 2))
1964                 return -1;
1965         cred.key_len = len / 2;
1966
1967         if (os_strcmp(settings->auth, "OPEN") == 0)
1968                 cred.auth_type = WPS_AUTH_OPEN;
1969         else if (os_strcmp(settings->auth, "WPAPSK") == 0)
1970                 cred.auth_type = WPS_AUTH_WPAPSK;
1971         else if (os_strcmp(settings->auth, "WPA2PSK") == 0)
1972                 cred.auth_type = WPS_AUTH_WPA2PSK;
1973         else
1974                 return -1;
1975
1976         if (os_strcmp(settings->encr, "NONE") == 0)
1977                 cred.encr_type = WPS_ENCR_NONE;
1978 #ifdef CONFIG_TESTING_OPTIONS
1979         else if (os_strcmp(settings->encr, "WEP") == 0)
1980                 cred.encr_type = WPS_ENCR_WEP;
1981 #endif /* CONFIG_TESTING_OPTIONS */
1982         else if (os_strcmp(settings->encr, "TKIP") == 0)
1983                 cred.encr_type = WPS_ENCR_TKIP;
1984         else if (os_strcmp(settings->encr, "CCMP") == 0)
1985                 cred.encr_type = WPS_ENCR_AES;
1986         else
1987                 return -1;
1988
1989         return wps_er_config(wpa_s->wps_er, use_uuid, use_addr,
1990                              (const u8 *) pin, os_strlen(pin), &cred);
1991 }
1992
1993
1994 #ifdef CONFIG_WPS_NFC
1995 struct wpabuf * wpas_wps_er_nfc_config_token(struct wpa_supplicant *wpa_s,
1996                                              int ndef, const char *uuid)
1997 {
1998         struct wpabuf *ret;
1999         u8 u[UUID_LEN], *use_uuid = NULL;
2000         u8 addr[ETH_ALEN], *use_addr = NULL;
2001
2002         if (!wpa_s->wps_er)
2003                 return NULL;
2004
2005         if (uuid_str2bin(uuid, u) == 0)
2006                 use_uuid = u;
2007         else if (hwaddr_aton(uuid, addr) == 0)
2008                 use_addr = addr;
2009         else
2010                 return NULL;
2011
2012         ret = wps_er_nfc_config_token(wpa_s->wps_er, use_uuid, use_addr);
2013         if (ndef && ret) {
2014                 struct wpabuf *tmp;
2015                 tmp = ndef_build_wifi(ret);
2016                 wpabuf_free(ret);
2017                 if (tmp == NULL)
2018                         return NULL;
2019                 ret = tmp;
2020         }
2021
2022         return ret;
2023 }
2024 #endif /* CONFIG_WPS_NFC */
2025
2026
2027 static int callbacks_pending = 0;
2028
2029 static void wpas_wps_terminate_cb(void *ctx)
2030 {
2031         wpa_printf(MSG_DEBUG, "WPS ER: Terminated");
2032         if (--callbacks_pending <= 0)
2033                 eloop_terminate();
2034 }
2035 #endif /* CONFIG_WPS_ER */
2036
2037
2038 int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s)
2039 {
2040 #ifdef CONFIG_WPS_ER
2041         if (wpa_s->wps_er) {
2042                 callbacks_pending++;
2043                 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s);
2044                 wpa_s->wps_er = NULL;
2045                 return 1;
2046         }
2047 #endif /* CONFIG_WPS_ER */
2048         return 0;
2049 }
2050
2051
2052 void wpas_wps_update_config(struct wpa_supplicant *wpa_s)
2053 {
2054         struct wps_context *wps = wpa_s->wps;
2055
2056         if (wps == NULL)
2057                 return;
2058
2059         if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) {
2060                 wps->config_methods = wps_config_methods_str2bin(
2061                         wpa_s->conf->config_methods);
2062                 if ((wps->config_methods &
2063                      (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
2064                     (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
2065                         wpa_printf(MSG_ERROR, "WPS: Both Label and Display "
2066                                    "config methods are not allowed at the "
2067                                    "same time");
2068                         wps->config_methods &= ~WPS_CONFIG_LABEL;
2069                 }
2070         }
2071         wps->config_methods = wps_fix_config_methods(wps->config_methods);
2072         wps->dev.config_methods = wps->config_methods;
2073
2074         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
2075                 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
2076                           WPS_DEV_TYPE_LEN);
2077
2078         if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) {
2079                 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2080                 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
2081                           wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2082         }
2083
2084         if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION)
2085                 wpas_wps_set_vendor_ext_m1(wpa_s, wps);
2086
2087         if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION)
2088                 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
2089
2090         if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID)
2091                 wpas_wps_set_uuid(wpa_s, wps);
2092
2093         if (wpa_s->conf->changed_parameters &
2094             (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) {
2095                 /* Update pointers to make sure they refer current values */
2096                 wps->dev.device_name = wpa_s->conf->device_name;
2097                 wps->dev.manufacturer = wpa_s->conf->manufacturer;
2098                 wps->dev.model_name = wpa_s->conf->model_name;
2099                 wps->dev.model_number = wpa_s->conf->model_number;
2100                 wps->dev.serial_number = wpa_s->conf->serial_number;
2101         }
2102 }
2103
2104
2105 #ifdef CONFIG_WPS_NFC
2106
2107 #ifdef CONFIG_WPS_ER
2108 static struct wpabuf *
2109 wpas_wps_network_config_token(struct wpa_supplicant *wpa_s, int ndef,
2110                               struct wpa_ssid *ssid)
2111 {
2112         struct wpabuf *ret;
2113         struct wps_credential cred;
2114
2115         if (wpas_wps_network_to_cred(ssid, &cred) < 0)
2116                 return NULL;
2117
2118         ret = wps_er_config_token_from_cred(wpa_s->wps, &cred);
2119
2120         if (ndef && ret) {
2121                 struct wpabuf *tmp;
2122                 tmp = ndef_build_wifi(ret);
2123                 wpabuf_free(ret);
2124                 if (tmp == NULL)
2125                         return NULL;
2126                 ret = tmp;
2127         }
2128
2129         return ret;
2130 }
2131 #endif /* CONFIG_WPS_ER */
2132
2133
2134 struct wpabuf * wpas_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
2135                                           int ndef, const char *id_str)
2136 {
2137 #ifdef CONFIG_WPS_ER
2138         if (id_str) {
2139                 int id;
2140                 char *end = NULL;
2141                 struct wpa_ssid *ssid;
2142
2143                 id = strtol(id_str, &end, 10);
2144                 if (end && *end)
2145                         return NULL;
2146
2147                 ssid = wpa_config_get_network(wpa_s->conf, id);
2148                 if (ssid == NULL)
2149                         return NULL;
2150                 return wpas_wps_network_config_token(wpa_s, ndef, ssid);
2151         }
2152 #endif /* CONFIG_WPS_ER */
2153 #ifdef CONFIG_AP
2154         if (wpa_s->ap_iface)
2155                 return wpas_ap_wps_nfc_config_token(wpa_s, ndef);
2156 #endif /* CONFIG_AP */
2157         return NULL;
2158 }
2159
2160
2161 struct wpabuf * wpas_wps_nfc_token(struct wpa_supplicant *wpa_s, int ndef)
2162 {
2163         if (wpa_s->conf->wps_nfc_pw_from_config) {
2164                 return wps_nfc_token_build(ndef,
2165                                            wpa_s->conf->wps_nfc_dev_pw_id,
2166                                            wpa_s->conf->wps_nfc_dh_pubkey,
2167                                            wpa_s->conf->wps_nfc_dev_pw);
2168         }
2169
2170         return wps_nfc_token_gen(ndef, &wpa_s->conf->wps_nfc_dev_pw_id,
2171                                  &wpa_s->conf->wps_nfc_dh_pubkey,
2172                                  &wpa_s->conf->wps_nfc_dh_privkey,
2173                                  &wpa_s->conf->wps_nfc_dev_pw);
2174 }
2175
2176
2177 int wpas_wps_start_nfc(struct wpa_supplicant *wpa_s, const u8 *go_dev_addr,
2178                        const u8 *bssid,
2179                        const struct wpabuf *dev_pw, u16 dev_pw_id,
2180                        int p2p_group, const u8 *peer_pubkey_hash,
2181                        const u8 *ssid, size_t ssid_len, int freq)
2182 {
2183         struct wps_context *wps = wpa_s->wps;
2184         char pw[32 * 2 + 1];
2185
2186         if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER && dev_pw == NULL) {
2187                 dev_pw = wpa_s->conf->wps_nfc_dev_pw;
2188                 dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
2189         }
2190
2191         if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
2192             wpa_s->conf->wps_nfc_dh_privkey == NULL) {
2193                 wpa_printf(MSG_DEBUG, "WPS: Missing DH params - "
2194                            "cannot start NFC-triggered connection");
2195                 return -1;
2196         }
2197
2198         if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER && dev_pw == NULL) {
2199                 wpa_printf(MSG_DEBUG, "WPS: Missing Device Password (id=%u) - "
2200                            "cannot start NFC-triggered connection", dev_pw_id);
2201                 return -1;
2202         }
2203
2204         dh5_free(wps->dh_ctx);
2205         wpabuf_free(wps->dh_pubkey);
2206         wpabuf_free(wps->dh_privkey);
2207         wps->dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
2208         wps->dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
2209         if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) {
2210                 wps->dh_ctx = NULL;
2211                 wpabuf_free(wps->dh_pubkey);
2212                 wps->dh_pubkey = NULL;
2213                 wpabuf_free(wps->dh_privkey);
2214                 wps->dh_privkey = NULL;
2215                 wpa_printf(MSG_DEBUG, "WPS: Failed to get DH priv/pub key");
2216                 return -1;
2217         }
2218         wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey);
2219         if (wps->dh_ctx == NULL) {
2220                 wpabuf_free(wps->dh_pubkey);
2221                 wps->dh_pubkey = NULL;
2222                 wpabuf_free(wps->dh_privkey);
2223                 wps->dh_privkey = NULL;
2224                 wpa_printf(MSG_DEBUG, "WPS: Failed to initialize DH context");
2225                 return -1;
2226         }
2227
2228         if (dev_pw) {
2229                 wpa_snprintf_hex_uppercase(pw, sizeof(pw),
2230                                            wpabuf_head(dev_pw),
2231                                            wpabuf_len(dev_pw));
2232         }
2233         return wpas_wps_start_dev_pw(wpa_s, go_dev_addr, bssid,
2234                                      dev_pw ? pw : NULL,
2235                                      p2p_group, dev_pw_id, peer_pubkey_hash,
2236                                      ssid, ssid_len, freq);
2237 }
2238
2239
2240 static int wpas_wps_use_cred(struct wpa_supplicant *wpa_s,
2241                              struct wps_parse_attr *attr)
2242 {
2243         /*
2244          * Disable existing networks temporarily to allow the newly learned
2245          * credential to be preferred. Enable the temporarily disabled networks
2246          * after 10 seconds.
2247          */
2248         wpas_wps_temp_disable(wpa_s, NULL);
2249         eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s,
2250                                NULL);
2251
2252         if (wps_oob_use_cred(wpa_s->wps, attr) < 0)
2253                 return -1;
2254
2255         if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
2256                 return 0;
2257
2258         if (attr->ap_channel) {
2259                 u16 chan = WPA_GET_BE16(attr->ap_channel);
2260                 int freq = 0;
2261
2262                 if (chan >= 1 && chan <= 13)
2263                         freq = 2407 + 5 * chan;
2264                 else if (chan == 14)
2265                         freq = 2484;
2266                 else if (chan >= 30)
2267                         freq = 5000 + 5 * chan;
2268
2269                 if (freq) {
2270                         wpa_printf(MSG_DEBUG, "WPS: Credential container indicated AP channel %u -> %u MHz",
2271                                    chan, freq);
2272                         wpa_s->after_wps = 5;
2273                         wpa_s->wps_freq = freq;
2274                 }
2275         }
2276
2277         wpa_printf(MSG_DEBUG, "WPS: Request reconnection with new network "
2278                    "based on the received credential added");
2279         wpa_s->normal_scans = 0;
2280         wpa_supplicant_reinit_autoscan(wpa_s);
2281         wpa_s->disconnected = 0;
2282         wpa_s->reassociate = 1;
2283
2284         wpa_supplicant_cancel_sched_scan(wpa_s);
2285         wpa_supplicant_req_scan(wpa_s, 0, 0);
2286
2287         return 0;
2288 }
2289
2290
2291 #ifdef CONFIG_WPS_ER
2292 static int wpas_wps_add_nfc_password_token(struct wpa_supplicant *wpa_s,
2293                                            struct wps_parse_attr *attr)
2294 {
2295         return wps_registrar_add_nfc_password_token(
2296                 wpa_s->wps->registrar, attr->oob_dev_password,
2297                 attr->oob_dev_password_len);
2298 }
2299 #endif /* CONFIG_WPS_ER */
2300
2301
2302 static int wpas_wps_nfc_tag_process(struct wpa_supplicant *wpa_s,
2303                                     const struct wpabuf *wps)
2304 {
2305         struct wps_parse_attr attr;
2306
2307         wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps);
2308
2309         if (wps_parse_msg(wps, &attr)) {
2310                 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag");
2311                 return -1;
2312         }
2313
2314         if (attr.num_cred)
2315                 return wpas_wps_use_cred(wpa_s, &attr);
2316
2317 #ifdef CONFIG_WPS_ER
2318         if (attr.oob_dev_password)
2319                 return wpas_wps_add_nfc_password_token(wpa_s, &attr);
2320 #endif /* CONFIG_WPS_ER */
2321
2322         wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag");
2323         return -1;
2324 }
2325
2326
2327 int wpas_wps_nfc_tag_read(struct wpa_supplicant *wpa_s,
2328                           const struct wpabuf *data, int forced_freq)
2329 {
2330         const struct wpabuf *wps = data;
2331         struct wpabuf *tmp = NULL;
2332         int ret;
2333
2334         if (wpabuf_len(data) < 4)
2335                 return -1;
2336
2337         if (*wpabuf_head_u8(data) != 0x10) {
2338                 /* Assume this contains full NDEF record */
2339                 tmp = ndef_parse_wifi(data);
2340                 if (tmp == NULL) {
2341 #ifdef CONFIG_P2P
2342                         tmp = ndef_parse_p2p(data);
2343                         if (tmp) {
2344                                 ret = wpas_p2p_nfc_tag_process(wpa_s, tmp,
2345                                                                forced_freq);
2346                                 wpabuf_free(tmp);
2347                                 return ret;
2348                         }
2349 #endif /* CONFIG_P2P */
2350                         wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF");
2351                         return -1;
2352                 }
2353                 wps = tmp;
2354         }
2355
2356         ret = wpas_wps_nfc_tag_process(wpa_s, wps);
2357         wpabuf_free(tmp);
2358         return ret;
2359 }
2360
2361
2362 struct wpabuf * wpas_wps_nfc_handover_req(struct wpa_supplicant *wpa_s,
2363                                           int ndef)
2364 {
2365         struct wpabuf *ret;
2366
2367         if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
2368             wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
2369                            &wpa_s->conf->wps_nfc_dh_privkey) < 0)
2370                 return NULL;
2371
2372         ret = wps_build_nfc_handover_req(wpa_s->wps,
2373                                          wpa_s->conf->wps_nfc_dh_pubkey);
2374
2375         if (ndef && ret) {
2376                 struct wpabuf *tmp;
2377                 tmp = ndef_build_wifi(ret);
2378                 wpabuf_free(ret);
2379                 if (tmp == NULL)
2380                         return NULL;
2381                 ret = tmp;
2382         }
2383
2384         return ret;
2385 }
2386
2387
2388 #ifdef CONFIG_WPS_NFC
2389
2390 static struct wpabuf *
2391 wpas_wps_er_nfc_handover_sel(struct wpa_supplicant *wpa_s, int ndef,
2392                              const char *uuid)
2393 {
2394 #ifdef CONFIG_WPS_ER
2395         struct wpabuf *ret;
2396         u8 u[UUID_LEN], *use_uuid = NULL;
2397         u8 addr[ETH_ALEN], *use_addr = NULL;
2398         struct wps_context *wps = wpa_s->wps;
2399
2400         if (wps == NULL)
2401                 return NULL;
2402
2403         if (uuid == NULL)
2404                 return NULL;
2405         if (uuid_str2bin(uuid, u) == 0)
2406                 use_uuid = u;
2407         else if (hwaddr_aton(uuid, addr) == 0)
2408                 use_addr = addr;
2409         else
2410                 return NULL;
2411
2412         if (wpa_s->conf->wps_nfc_dh_pubkey == NULL) {
2413                 if (wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
2414                                    &wpa_s->conf->wps_nfc_dh_privkey) < 0)
2415                         return NULL;
2416         }
2417
2418         wpas_wps_nfc_clear(wps);
2419         wps->ap_nfc_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
2420         wps->ap_nfc_dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
2421         wps->ap_nfc_dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
2422         if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey) {
2423                 wpas_wps_nfc_clear(wps);
2424                 return NULL;
2425         }
2426
2427         ret = wps_er_nfc_handover_sel(wpa_s->wps_er, wpa_s->wps, use_uuid,
2428                                       use_addr, wpa_s->conf->wps_nfc_dh_pubkey);
2429         if (ndef && ret) {
2430                 struct wpabuf *tmp;
2431                 tmp = ndef_build_wifi(ret);
2432                 wpabuf_free(ret);
2433                 if (tmp == NULL)
2434                         return NULL;
2435                 ret = tmp;
2436         }
2437
2438         return ret;
2439 #else /* CONFIG_WPS_ER */
2440         return NULL;
2441 #endif /* CONFIG_WPS_ER */
2442 }
2443 #endif /* CONFIG_WPS_NFC */
2444
2445
2446 struct wpabuf * wpas_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
2447                                           int ndef, int cr, const char *uuid)
2448 {
2449         struct wpabuf *ret;
2450         if (!cr)
2451                 return NULL;
2452         ret = wpas_ap_wps_nfc_handover_sel(wpa_s, ndef);
2453         if (ret)
2454                 return ret;
2455         return wpas_wps_er_nfc_handover_sel(wpa_s, ndef, uuid);
2456 }
2457
2458
2459 static int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s,
2460                                         const struct wpabuf *data)
2461 {
2462         struct wpabuf *wps;
2463         int ret = -1;
2464         u16 wsc_len;
2465         const u8 *pos;
2466         struct wpabuf msg;
2467         struct wps_parse_attr attr;
2468         u16 dev_pw_id;
2469         const u8 *bssid = NULL;
2470         int freq = 0;
2471
2472         wps = ndef_parse_wifi(data);
2473         if (wps == NULL)
2474                 return -1;
2475         wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc "
2476                    "payload from NFC connection handover");
2477         wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps);
2478         if (wpabuf_len(wps) < 2) {
2479                 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Select "
2480                            "Message");
2481                 goto out;
2482         }
2483         pos = wpabuf_head(wps);
2484         wsc_len = WPA_GET_BE16(pos);
2485         if (wsc_len > wpabuf_len(wps) - 2) {
2486                 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) "
2487                            "in Wi-Fi Handover Select Message", wsc_len);
2488                 goto out;
2489         }
2490         pos += 2;
2491
2492         wpa_hexdump(MSG_DEBUG,
2493                     "WPS: WSC attributes in Wi-Fi Handover Select Message",
2494                     pos, wsc_len);
2495         if (wsc_len < wpabuf_len(wps) - 2) {
2496                 wpa_hexdump(MSG_DEBUG,
2497                             "WPS: Ignore extra data after WSC attributes",
2498                             pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len);
2499         }
2500
2501         wpabuf_set(&msg, pos, wsc_len);
2502         ret = wps_parse_msg(&msg, &attr);
2503         if (ret < 0) {
2504                 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in "
2505                            "Wi-Fi Handover Select Message");
2506                 goto out;
2507         }
2508
2509         if (attr.oob_dev_password == NULL ||
2510             attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
2511                 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password "
2512                            "included in Wi-Fi Handover Select Message");
2513                 ret = -1;
2514                 goto out;
2515         }
2516
2517         if (attr.ssid == NULL) {
2518                 wpa_printf(MSG_DEBUG, "WPS: No SSID included in Wi-Fi Handover "
2519                            "Select Message");
2520                 ret = -1;
2521                 goto out;
2522         }
2523
2524         wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", attr.ssid, attr.ssid_len);
2525
2526         if (attr.mac_addr) {
2527                 bssid = attr.mac_addr;
2528                 wpa_printf(MSG_DEBUG, "WPS: MAC Address (BSSID): " MACSTR,
2529                            MAC2STR(bssid));
2530         }
2531
2532         if (attr.rf_bands)
2533                 wpa_printf(MSG_DEBUG, "WPS: RF Bands: %d", *attr.rf_bands);
2534
2535         if (attr.ap_channel) {
2536                 u16 chan = WPA_GET_BE16(attr.ap_channel);
2537
2538                 wpa_printf(MSG_DEBUG, "WPS: AP Channel: %d", chan);
2539
2540                 if (chan >= 1 && chan <= 13 &&
2541                     (attr.rf_bands == NULL || *attr.rf_bands & WPS_RF_24GHZ))
2542                         freq = 2407 + 5 * chan;
2543                 else if (chan == 14 &&
2544                          (attr.rf_bands == NULL ||
2545                           *attr.rf_bands & WPS_RF_24GHZ))
2546                         freq = 2484;
2547                 else if (chan >= 30 &&
2548                          (attr.rf_bands == NULL ||
2549                           *attr.rf_bands & WPS_RF_50GHZ))
2550                         freq = 5000 + 5 * chan;
2551
2552                 if (freq) {
2553                         wpa_printf(MSG_DEBUG,
2554                                    "WPS: AP indicated channel %u -> %u MHz",
2555                                    chan, freq);
2556                 }
2557         }
2558
2559         wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password",
2560                     attr.oob_dev_password, attr.oob_dev_password_len);
2561         dev_pw_id = WPA_GET_BE16(attr.oob_dev_password +
2562                                  WPS_OOB_PUBKEY_HASH_LEN);
2563         if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) {
2564                 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID "
2565                            "%u in Wi-Fi Handover Select Message", dev_pw_id);
2566                 ret = -1;
2567                 goto out;
2568         }
2569         wpa_hexdump(MSG_DEBUG, "WPS: AP Public Key hash",
2570                     attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN);
2571
2572         ret = wpas_wps_start_nfc(wpa_s, NULL, bssid, NULL, dev_pw_id, 0,
2573                                  attr.oob_dev_password,
2574                                  attr.ssid, attr.ssid_len, freq);
2575
2576 out:
2577         wpabuf_free(wps);
2578         return ret;
2579 }
2580
2581
2582 int wpas_wps_nfc_report_handover(struct wpa_supplicant *wpa_s,
2583                                  const struct wpabuf *req,
2584                                  const struct wpabuf *sel)
2585 {
2586         wpa_printf(MSG_DEBUG, "NFC: WPS connection handover reported");
2587         wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in request", req);
2588         wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in select", sel);
2589         return wpas_wps_nfc_rx_handover_sel(wpa_s, sel);
2590 }
2591
2592
2593 int wpas_er_wps_nfc_report_handover(struct wpa_supplicant *wpa_s,
2594                                     const struct wpabuf *req,
2595                                     const struct wpabuf *sel)
2596 {
2597         struct wpabuf *wps;
2598         int ret = -1;
2599         u16 wsc_len;
2600         const u8 *pos;
2601         struct wpabuf msg;
2602         struct wps_parse_attr attr;
2603         u16 dev_pw_id;
2604
2605         /*
2606          * Enrollee/station is always initiator of the NFC connection handover,
2607          * so use the request message here to find Enrollee public key hash.
2608          */
2609         wps = ndef_parse_wifi(req);
2610         if (wps == NULL)
2611                 return -1;
2612         wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc "
2613                    "payload from NFC connection handover");
2614         wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps);
2615         if (wpabuf_len(wps) < 2) {
2616                 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Request "
2617                            "Message");
2618                 goto out;
2619         }
2620         pos = wpabuf_head(wps);
2621         wsc_len = WPA_GET_BE16(pos);
2622         if (wsc_len > wpabuf_len(wps) - 2) {
2623                 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) "
2624                            "in rt Wi-Fi Handover Request Message", wsc_len);
2625                 goto out;
2626         }
2627         pos += 2;
2628
2629         wpa_hexdump(MSG_DEBUG,
2630                     "WPS: WSC attributes in Wi-Fi Handover Request Message",
2631                     pos, wsc_len);
2632         if (wsc_len < wpabuf_len(wps) - 2) {
2633                 wpa_hexdump(MSG_DEBUG,
2634                             "WPS: Ignore extra data after WSC attributes",
2635                             pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len);
2636         }
2637
2638         wpabuf_set(&msg, pos, wsc_len);
2639         ret = wps_parse_msg(&msg, &attr);
2640         if (ret < 0) {
2641                 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in "
2642                            "Wi-Fi Handover Request Message");
2643                 goto out;
2644         }
2645
2646         if (attr.oob_dev_password == NULL ||
2647             attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
2648                 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password "
2649                            "included in Wi-Fi Handover Request Message");
2650                 ret = -1;
2651                 goto out;
2652         }
2653
2654         if (attr.uuid_e == NULL) {
2655                 wpa_printf(MSG_DEBUG, "WPS: No UUID-E included in Wi-Fi "
2656                            "Handover Request Message");
2657                 ret = -1;
2658                 goto out;
2659         }
2660
2661         wpa_hexdump(MSG_DEBUG, "WPS: UUID-E", attr.uuid_e, WPS_UUID_LEN);
2662
2663         wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password",
2664                     attr.oob_dev_password, attr.oob_dev_password_len);
2665         dev_pw_id = WPA_GET_BE16(attr.oob_dev_password +
2666                                  WPS_OOB_PUBKEY_HASH_LEN);
2667         if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) {
2668                 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID "
2669                            "%u in Wi-Fi Handover Request Message", dev_pw_id);
2670                 ret = -1;
2671                 goto out;
2672         }
2673         wpa_hexdump(MSG_DEBUG, "WPS: Enrollee Public Key hash",
2674                     attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN);
2675
2676         ret = wps_registrar_add_nfc_pw_token(wpa_s->wps->registrar,
2677                                              attr.oob_dev_password,
2678                                              DEV_PW_NFC_CONNECTION_HANDOVER,
2679                                              NULL, 0, 1);
2680
2681 out:
2682         wpabuf_free(wps);
2683         return ret;
2684 }
2685
2686 #endif /* CONFIG_WPS_NFC */
2687
2688
2689 static void wpas_wps_dump_ap_info(struct wpa_supplicant *wpa_s)
2690 {
2691         size_t i;
2692         struct os_reltime now;
2693
2694         if (wpa_debug_level > MSG_DEBUG)
2695                 return;
2696
2697         if (wpa_s->wps_ap == NULL)
2698                 return;
2699
2700         os_get_reltime(&now);
2701
2702         for (i = 0; i < wpa_s->num_wps_ap; i++) {
2703                 struct wps_ap_info *ap = &wpa_s->wps_ap[i];
2704                 struct wpa_blacklist *e = wpa_blacklist_get(wpa_s, ap->bssid);
2705
2706                 wpa_printf(MSG_DEBUG, "WPS: AP[%d] " MACSTR " type=%d "
2707                            "tries=%d last_attempt=%d sec ago blacklist=%d",
2708                            (int) i, MAC2STR(ap->bssid), ap->type, ap->tries,
2709                            ap->last_attempt.sec > 0 ?
2710                            (int) now.sec - (int) ap->last_attempt.sec : -1,
2711                            e ? e->count : 0);
2712         }
2713 }
2714
2715
2716 static struct wps_ap_info * wpas_wps_get_ap_info(struct wpa_supplicant *wpa_s,
2717                                                  const u8 *bssid)
2718 {
2719         size_t i;
2720
2721         if (wpa_s->wps_ap == NULL)
2722                 return NULL;
2723
2724         for (i = 0; i < wpa_s->num_wps_ap; i++) {
2725                 struct wps_ap_info *ap = &wpa_s->wps_ap[i];
2726                 if (os_memcmp(ap->bssid, bssid, ETH_ALEN) == 0)
2727                         return ap;
2728         }
2729
2730         return NULL;
2731 }
2732
2733
2734 static void wpas_wps_update_ap_info_bss(struct wpa_supplicant *wpa_s,
2735                                         struct wpa_scan_res *res)
2736 {
2737         struct wpabuf *wps;
2738         enum wps_ap_info_type type;
2739         struct wps_ap_info *ap;
2740         int r;
2741
2742         if (wpa_scan_get_vendor_ie(res, WPS_IE_VENDOR_TYPE) == NULL)
2743                 return;
2744
2745         wps = wpa_scan_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE);
2746         if (wps == NULL)
2747                 return;
2748
2749         r = wps_is_addr_authorized(wps, wpa_s->own_addr, 1);
2750         if (r == 2)
2751                 type = WPS_AP_SEL_REG_OUR;
2752         else if (r == 1)
2753                 type = WPS_AP_SEL_REG;
2754         else
2755                 type = WPS_AP_NOT_SEL_REG;
2756
2757         wpabuf_free(wps);
2758
2759         ap = wpas_wps_get_ap_info(wpa_s, res->bssid);
2760         if (ap) {
2761                 if (ap->type != type) {
2762                         wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR
2763                                    " changed type %d -> %d",
2764                                    MAC2STR(res->bssid), ap->type, type);
2765                         ap->type = type;
2766                         if (type != WPS_AP_NOT_SEL_REG)
2767                                 wpa_blacklist_del(wpa_s, ap->bssid);
2768                 }
2769                 return;
2770         }
2771
2772         ap = os_realloc_array(wpa_s->wps_ap, wpa_s->num_wps_ap + 1,
2773                               sizeof(struct wps_ap_info));
2774         if (ap == NULL)
2775                 return;
2776
2777         wpa_s->wps_ap = ap;
2778         ap = &wpa_s->wps_ap[wpa_s->num_wps_ap];
2779         wpa_s->num_wps_ap++;
2780
2781         os_memset(ap, 0, sizeof(*ap));
2782         os_memcpy(ap->bssid, res->bssid, ETH_ALEN);
2783         ap->type = type;
2784         wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR " type %d added",
2785                    MAC2STR(ap->bssid), ap->type);
2786 }
2787
2788
2789 void wpas_wps_update_ap_info(struct wpa_supplicant *wpa_s,
2790                              struct wpa_scan_results *scan_res)
2791 {
2792         size_t i;
2793
2794         for (i = 0; i < scan_res->num; i++)
2795                 wpas_wps_update_ap_info_bss(wpa_s, scan_res->res[i]);
2796
2797         wpas_wps_dump_ap_info(wpa_s);
2798 }
2799
2800
2801 void wpas_wps_notify_assoc(struct wpa_supplicant *wpa_s, const u8 *bssid)
2802 {
2803         struct wps_ap_info *ap;
2804
2805         wpa_s->after_wps = 0;
2806
2807         if (!wpa_s->wps_ap_iter)
2808                 return;
2809         ap = wpas_wps_get_ap_info(wpa_s, bssid);
2810         if (ap == NULL)
2811                 return;
2812         ap->tries++;
2813         os_get_reltime(&ap->last_attempt);
2814 }