wpa_supplicant/wps_supplicant.c

   1 /*
   2  * wpa_supplicant / WPS integration
   3  * Copyright (c) 2008-2013, 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 int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s)
  56 {
  57         if (!wpa_s->wps_success &&
  58             wpa_s->current_ssid &&
  59             eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
  60                 const u8 *bssid = wpa_s->bssid;
  61                 if (is_zero_ether_addr(bssid))
  62                         bssid = wpa_s->pending_bssid;
  63
  64                 wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR
  65                            " did not succeed - continue trying to find "
  66                            "suitable AP", MAC2STR(bssid));
  67                 wpa_blacklist_add(wpa_s, bssid);
  68
  69                 wpa_supplicant_deauthenticate(wpa_s,
  70                                               WLAN_REASON_DEAUTH_LEAVING);
  71                 wpa_s->reassociate = 1;
  72                 wpa_supplicant_req_scan(wpa_s,
  73                                         wpa_s->blacklist_cleared ? 5 : 0, 0);
  74                 wpa_s->blacklist_cleared = 0;
  75                 return 1;
  76         }
  77
  78         wpas_wps_clear_ap_info(wpa_s);
  79         eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
  80         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && !wpa_s->wps_success)
  81                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL);
  82
  83         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid &&
  84             !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
  85                 int disabled = wpa_s->current_ssid->disabled;
  86                 unsigned int freq = wpa_s->assoc_freq;
  87                 struct wpa_bss *bss;
  88                 struct wpa_ssid *ssid = NULL;
  89                 int use_fast_assoc = 0;
  90
  91                 wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - "
  92                            "try to associate with the received credential "
  93                            "(freq=%u)", freq);
  94                 wpa_supplicant_deauthenticate(wpa_s,
  95                                               WLAN_REASON_DEAUTH_LEAVING);
  96                 if (disabled) {
  97                         wpa_printf(MSG_DEBUG, "WPS: Current network is "
  98                                    "disabled - wait for user to enable");
  99                         return 1;
 100                 }
 101                 wpa_s->after_wps = 5;
 102                 wpa_s->wps_freq = freq;
 103                 wpa_s->normal_scans = 0;
 104                 wpa_s->reassociate = 1;
 105
 106                 wpa_printf(MSG_DEBUG, "WPS: Checking whether fast association "
 107                            "without a new scan can be used");
 108                 bss = wpa_supplicant_pick_network(wpa_s, &ssid);
 109                 if (bss) {
 110                         struct wpabuf *wps;
 111                         struct wps_parse_attr attr;
 112
 113                         wps = wpa_bss_get_vendor_ie_multi(bss,
 114                                                           WPS_IE_VENDOR_TYPE);
 115                         if (wps && wps_parse_msg(wps, &attr) == 0 &&
 116                             attr.wps_state &&
 117                             *attr.wps_state == WPS_STATE_CONFIGURED)
 118                                 use_fast_assoc = 1;
 119                         wpabuf_free(wps);
 120                 }
 121
 122                 if (!use_fast_assoc ||
 123                     wpa_supplicant_fast_associate(wpa_s) != 1)
 124                         wpa_supplicant_req_scan(wpa_s, 0, 0);
 125                 return 1;
 126         }
 127
 128         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) {
 129                 wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting "
 130                            "for external credential processing");
 131                 wpas_clear_wps(wpa_s);
 132                 wpa_supplicant_deauthenticate(wpa_s,
 133                                               WLAN_REASON_DEAUTH_LEAVING);
 134                 return 1;
 135         }
 136
 137         return 0;
 138 }
 139
 140
 141 static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s,
 142                                          struct wpa_ssid *ssid,
 143                                          const struct wps_credential *cred)
 144 {
 145         struct wpa_driver_capa capa;
 146         struct wpa_bss *bss;
 147         const u8 *ie;
 148         struct wpa_ie_data adv;
 149         int wpa2 = 0, ccmp = 0;
 150
 151         /*
 152          * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in
 153          * case they are configured for mixed mode operation (WPA+WPA2 and
 154          * TKIP+CCMP). Try to use scan results to figure out whether the AP
 155          * actually supports stronger security and select that if the client
 156          * has support for it, too.
 157          */
 158
 159         if (wpa_drv_get_capa(wpa_s, &capa))
 160                 return; /* Unknown what driver supports */
 161
 162         if (ssid->ssid == NULL)
 163                 return;
 164         bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len);
 165         if (bss == NULL) {
 166                 wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS "
 167                            "table - use credential as-is");
 168                 return;
 169         }
 170
 171         wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table");
 172
 173         ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
 174         if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) {
 175                 wpa2 = 1;
 176                 if (adv.pairwise_cipher & WPA_CIPHER_CCMP)
 177                         ccmp = 1;
 178         } else {
 179                 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 180                 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 &&
 181                     adv.pairwise_cipher & WPA_CIPHER_CCMP)
 182                         ccmp = 1;
 183         }
 184
 185         if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) &&
 186             (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) {
 187                 /*
 188                  * TODO: This could be the initial AP configuration and the
 189                  * Beacon contents could change shortly. Should request a new
 190                  * scan and delay addition of the network until the updated
 191                  * scan results are available.
 192                  */
 193                 wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA "
 194                            "support - use credential as-is");
 195                 return;
 196         }
 197
 198         if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
 199             (ssid->pairwise_cipher & WPA_CIPHER_TKIP) &&
 200             (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
 201                 wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential "
 202                            "based on scan results");
 203                 if (wpa_s->conf->ap_scan == 1)
 204                         ssid->pairwise_cipher |= WPA_CIPHER_CCMP;
 205                 else
 206                         ssid->pairwise_cipher = WPA_CIPHER_CCMP;
 207         }
 208
 209         if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) &&
 210             (ssid->proto & WPA_PROTO_WPA) &&
 211             (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) {
 212                 wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential "
 213                            "based on scan results");
 214                 if (wpa_s->conf->ap_scan == 1)
 215                         ssid->proto |= WPA_PROTO_RSN;
 216                 else
 217                         ssid->proto = WPA_PROTO_RSN;
 218         }
 219 }
 220
 221
 222 static int wpa_supplicant_wps_cred(void *ctx,
 223                                    const struct wps_credential *cred)
 224 {
 225         struct wpa_supplicant *wpa_s = ctx;
 226         struct wpa_ssid *ssid = wpa_s->current_ssid;
 227         u8 key_idx = 0;
 228         u16 auth_type;
 229 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
 230         int registrar = 0;
 231 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
 232
 233         if ((wpa_s->conf->wps_cred_processing == 1 ||
 234              wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) {
 235                 size_t blen = cred->cred_attr_len * 2 + 1;
 236                 char *buf = os_malloc(blen);
 237                 if (buf) {
 238                         wpa_snprintf_hex(buf, blen,
 239                                          cred->cred_attr, cred->cred_attr_len);
 240                         wpa_msg(wpa_s, MSG_INFO, "%s%s",
 241                                 WPS_EVENT_CRED_RECEIVED, buf);
 242                         os_free(buf);
 243                 }
 244
 245                 wpas_notify_wps_credential(wpa_s, cred);
 246         } else
 247                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED);
 248
 249         wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
 250                         cred->cred_attr, cred->cred_attr_len);
 251
 252         if (wpa_s->conf->wps_cred_processing == 1)
 253                 return 0;
 254
 255         wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
 256         wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
 257                    cred->auth_type);
 258         wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
 259         wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
 260         wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
 261                         cred->key, cred->key_len);
 262         wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
 263                    MAC2STR(cred->mac_addr));
 264
 265         auth_type = cred->auth_type;
 266         if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
 267                 wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode "
 268                            "auth_type into WPA2PSK");
 269                 auth_type = WPS_AUTH_WPA2PSK;
 270         }
 271
 272         if (auth_type != WPS_AUTH_OPEN &&
 273             auth_type != WPS_AUTH_SHARED &&
 274             auth_type != WPS_AUTH_WPAPSK &&
 275             auth_type != WPS_AUTH_WPA2PSK) {
 276                 wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
 277                            "unsupported authentication type 0x%x",
 278                            auth_type);
 279                 return 0;
 280         }
 281
 282         if (auth_type == WPS_AUTH_WPAPSK || auth_type == WPS_AUTH_WPA2PSK) {
 283                 if (cred->key_len < 8 || cred->key_len > 2 * PMK_LEN) {
 284                         wpa_printf(MSG_ERROR, "WPS: Reject PSK credential with "
 285                                    "invalid Network Key length %lu",
 286                                    (unsigned long) cred->key_len);
 287                         return -1;
 288                 }
 289         }
 290
 291         if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
 292                 wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based "
 293                            "on the received credential");
 294 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
 295                 if (ssid->eap.identity &&
 296                     ssid->eap.identity_len == WSC_ID_REGISTRAR_LEN &&
 297                     os_memcmp(ssid->eap.identity, WSC_ID_REGISTRAR,
 298                               WSC_ID_REGISTRAR_LEN) == 0)
 299                         registrar = 1;
 300 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
 301                 os_free(ssid->eap.identity);
 302                 ssid->eap.identity = NULL;
 303                 ssid->eap.identity_len = 0;
 304                 os_free(ssid->eap.phase1);
 305                 ssid->eap.phase1 = NULL;
 306                 os_free(ssid->eap.eap_methods);
 307                 ssid->eap.eap_methods = NULL;
 308                 if (!ssid->p2p_group) {
 309                         ssid->temporary = 0;
 310                         ssid->bssid_set = 0;
 311                 }
 312                 ssid->disabled_until.sec = 0;
 313                 ssid->disabled_until.usec = 0;
 314                 ssid->auth_failures = 0;
 315         } else {
 316                 wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the "
 317                            "received credential");
 318                 ssid = wpa_config_add_network(wpa_s->conf);
 319                 if (ssid == NULL)
 320                         return -1;
 321                 wpas_notify_network_added(wpa_s, ssid);
 322         }
 323
 324         wpa_config_set_network_defaults(ssid);
 325
 326         os_free(ssid->ssid);
 327         ssid->ssid = os_malloc(cred->ssid_len);
 328         if (ssid->ssid) {
 329                 os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len);
 330                 ssid->ssid_len = cred->ssid_len;
 331         }
 332
 333         switch (cred->encr_type) {
 334         case WPS_ENCR_NONE:
 335                 break;
 336         case WPS_ENCR_WEP:
 337                 if (cred->key_len <= 0)
 338                         break;
 339                 if (cred->key_len != 5 && cred->key_len != 13 &&
 340                     cred->key_len != 10 && cred->key_len != 26) {
 341                         wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key length "
 342                                    "%lu", (unsigned long) cred->key_len);
 343                         return -1;
 344                 }
 345                 if (cred->key_idx > NUM_WEP_KEYS) {
 346                         wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key index %d",
 347                                    cred->key_idx);
 348                         return -1;
 349                 }
 350                 if (cred->key_idx)
 351                         key_idx = cred->key_idx - 1;
 352                 if (cred->key_len == 10 || cred->key_len == 26) {
 353                         if (hexstr2bin((char *) cred->key,
 354                                        ssid->wep_key[key_idx],
 355                                        cred->key_len / 2) < 0) {
 356                                 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key "
 357                                            "%d", key_idx);
 358                                 return -1;
 359                         }
 360                         ssid->wep_key_len[key_idx] = cred->key_len / 2;
 361                 } else {
 362                         os_memcpy(ssid->wep_key[key_idx], cred->key,
 363                                   cred->key_len);
 364                         ssid->wep_key_len[key_idx] = cred->key_len;
 365                 }
 366                 ssid->wep_tx_keyidx = key_idx;
 367                 break;
 368         case WPS_ENCR_TKIP:
 369                 ssid->pairwise_cipher = WPA_CIPHER_TKIP;
 370                 break;
 371         case WPS_ENCR_AES:
 372                 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
 373                 break;
 374         }
 375
 376         switch (auth_type) {
 377         case WPS_AUTH_OPEN:
 378                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 379                 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
 380                 ssid->proto = 0;
 381 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
 382                 if (registrar) {
 383                         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK
 384                                 "id=%d - Credentials for an open "
 385                                 "network disabled by default - use "
 386                                 "'select_network %d' to enable",
 387                                 ssid->id, ssid->id);
 388                         ssid->disabled = 1;
 389                 }
 390 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
 391                 break;
 392         case WPS_AUTH_SHARED:
 393                 ssid->auth_alg = WPA_AUTH_ALG_SHARED;
 394                 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
 395                 ssid->proto = 0;
 396                 break;
 397         case WPS_AUTH_WPAPSK:
 398                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 399                 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
 400                 ssid->proto = WPA_PROTO_WPA;
 401                 break;
 402         case WPS_AUTH_WPA2PSK:
 403                 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 404                 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
 405                 ssid->proto = WPA_PROTO_RSN;
 406                 break;
 407         }
 408
 409         if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) {
 410                 if (cred->key_len == 2 * PMK_LEN) {
 411                         if (hexstr2bin((const char *) cred->key, ssid->psk,
 412                                        PMK_LEN)) {
 413                                 wpa_printf(MSG_ERROR, "WPS: Invalid Network "
 414                                            "Key");
 415                                 return -1;
 416                         }
 417                         ssid->psk_set = 1;
 418                         ssid->export_keys = 1;
 419                 } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) {
 420                         os_free(ssid->passphrase);
 421                         ssid->passphrase = os_malloc(cred->key_len + 1);
 422                         if (ssid->passphrase == NULL)
 423                                 return -1;
 424                         os_memcpy(ssid->passphrase, cred->key, cred->key_len);
 425                         ssid->passphrase[cred->key_len] = '\0';
 426                         wpa_config_update_psk(ssid);
 427                         ssid->export_keys = 1;
 428                 } else {
 429                         wpa_printf(MSG_ERROR, "WPS: Invalid Network Key "
 430                                    "length %lu",
 431                                    (unsigned long) cred->key_len);
 432                         return -1;
 433                 }
 434         }
 435
 436         wpas_wps_security_workaround(wpa_s, ssid, cred);
 437
 438         if (cred->ap_channel)
 439                 wpa_s->wps_ap_channel = cred->ap_channel;
 440
 441 #ifndef CONFIG_NO_CONFIG_WRITE
 442         if (wpa_s->conf->update_config &&
 443             wpa_config_write(wpa_s->confname, wpa_s->conf)) {
 444                 wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration");
 445                 return -1;
 446         }
 447 #endif /* CONFIG_NO_CONFIG_WRITE */
 448
 449         /*
 450          * Optimize the post-WPS scan based on the channel used during
 451          * the provisioning in case EAP-Failure is not received.
 452          */
 453         wpa_s->after_wps = 5;
 454         wpa_s->wps_freq = wpa_s->assoc_freq;
 455
 456         return 0;
 457 }
 458
 459
 460 #ifdef CONFIG_P2P
 461 static void wpas_wps_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
 462 {
 463         struct wpa_supplicant *wpa_s = eloop_ctx;
 464         wpas_p2p_notif_pbc_overlap(wpa_s);
 465 }
 466 #endif /* CONFIG_P2P */
 467
 468
 469 static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s,
 470                                          struct wps_event_m2d *m2d)
 471 {
 472         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D
 473                 "dev_password_id=%d config_error=%d",
 474                 m2d->dev_password_id, m2d->config_error);
 475         wpas_notify_wps_event_m2d(wpa_s, m2d);
 476 #ifdef CONFIG_P2P
 477         if (wpa_s->parent && wpa_s->parent != wpa_s) {
 478                 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_M2D
 479                         "dev_password_id=%d config_error=%d",
 480                         m2d->dev_password_id, m2d->config_error);
 481         }
 482         if (m2d->config_error == WPS_CFG_MULTIPLE_PBC_DETECTED) {
 483                 /*
 484                  * Notify P2P from eloop timeout to avoid issues with the
 485                  * interface getting removed while processing a message.
 486                  */
 487                 eloop_register_timeout(0, 0, wpas_wps_pbc_overlap_cb, wpa_s,
 488                                        NULL);
 489         }
 490 #endif /* CONFIG_P2P */
 491 }
 492
 493
 494 static const char * wps_event_fail_reason[NUM_WPS_EI_VALUES] = {
 495         "No Error", /* WPS_EI_NO_ERROR */
 496         "TKIP Only Prohibited", /* WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED */
 497         "WEP Prohibited" /* WPS_EI_SECURITY_WEP_PROHIBITED */
 498 };
 499
 500 static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
 501                                           struct wps_event_fail *fail)
 502 {
 503         if (fail->error_indication > 0 &&
 504             fail->error_indication < NUM_WPS_EI_VALUES) {
 505                 wpa_msg(wpa_s, MSG_INFO,
 506                         WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
 507                         fail->msg, fail->config_error, fail->error_indication,
 508                         wps_event_fail_reason[fail->error_indication]);
 509                 if (wpa_s->parent && wpa_s->parent != wpa_s)
 510                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 511                                 "msg=%d config_error=%d reason=%d (%s)",
 512                                 fail->msg, fail->config_error,
 513                                 fail->error_indication,
 514                                 wps_event_fail_reason[fail->error_indication]);
 515         } else {
 516                 wpa_msg(wpa_s, MSG_INFO,
 517                         WPS_EVENT_FAIL "msg=%d config_error=%d",
 518                         fail->msg, fail->config_error);
 519                 if (wpa_s->parent && wpa_s->parent != wpa_s)
 520                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 521                                 "msg=%d config_error=%d",
 522                                 fail->msg, fail->config_error);
 523         }
 524         wpas_clear_wps(wpa_s);
 525         wpas_notify_wps_event_fail(wpa_s, fail);
 526 #ifdef CONFIG_P2P
 527         wpas_p2p_wps_failed(wpa_s, fail);
 528 #endif /* CONFIG_P2P */
 529 }
 530
 531
 532 static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx);
 533
 534 static void wpas_wps_reenable_networks(struct wpa_supplicant *wpa_s)
 535 {
 536         struct wpa_ssid *ssid;
 537         int changed = 0;
 538
 539         eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL);
 540
 541         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
 542                 if (ssid->disabled_for_connect && ssid->disabled) {
 543                         ssid->disabled_for_connect = 0;
 544                         ssid->disabled = 0;
 545                         wpas_notify_network_enabled_changed(wpa_s, ssid);
 546                         changed++;
 547                 }
 548         }
 549
 550         if (changed) {
 551 #ifndef CONFIG_NO_CONFIG_WRITE
 552                 if (wpa_s->conf->update_config &&
 553                     wpa_config_write(wpa_s->confname, wpa_s->conf)) {
 554                         wpa_printf(MSG_DEBUG, "WPS: Failed to update "
 555                                    "configuration");
 556                 }
 557 #endif /* CONFIG_NO_CONFIG_WRITE */
 558         }
 559 }
 560
 561
 562 static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx)
 563 {
 564         struct wpa_supplicant *wpa_s = eloop_ctx;
 565         /* Enable the networks disabled during wpas_wps_reassoc */
 566         wpas_wps_reenable_networks(wpa_s);
 567 }
 568
 569
 570 static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s)
 571 {
 572         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS);
 573         wpa_s->wps_success = 1;
 574         wpas_notify_wps_event_success(wpa_s);
 575
 576         /*
 577          * Enable the networks disabled during wpas_wps_reassoc after 10
 578          * seconds. The 10 seconds timer is to allow the data connection to be
 579          * formed before allowing other networks to be selected.
 580          */
 581         eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s,
 582                                NULL);
 583
 584 #ifdef CONFIG_P2P
 585         wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0);
 586 #endif /* CONFIG_P2P */
 587 }
 588
 589
 590 static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s,
 591                                                struct wps_event_er_ap *ap)
 592 {
 593         char uuid_str[100];
 594         char dev_type[WPS_DEV_TYPE_BUFSIZE];
 595
 596         uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
 597         if (ap->pri_dev_type)
 598                 wps_dev_type_bin2str(ap->pri_dev_type, dev_type,
 599                                      sizeof(dev_type));
 600         else
 601                 dev_type[0] = '\0';
 602
 603         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR
 604                 " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|",
 605                 uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state,
 606                 ap->friendly_name ? ap->friendly_name : "",
 607                 ap->manufacturer ? ap->manufacturer : "",
 608                 ap->model_description ? ap->model_description : "",
 609                 ap->model_name ? ap->model_name : "",
 610                 ap->manufacturer_url ? ap->manufacturer_url : "",
 611                 ap->model_url ? ap->model_url : "");
 612 }
 613
 614
 615 static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s,
 616                                                   struct wps_event_er_ap *ap)
 617 {
 618         char uuid_str[100];
 619         uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
 620         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str);
 621 }
 622
 623
 624 static void wpa_supplicant_wps_event_er_enrollee_add(
 625         struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
 626 {
 627         char uuid_str[100];
 628         char dev_type[WPS_DEV_TYPE_BUFSIZE];
 629
 630         uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
 631         if (enrollee->pri_dev_type)
 632                 wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type,
 633                                      sizeof(dev_type));
 634         else
 635                 dev_type[0] = '\0';
 636
 637         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR
 638                 " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s "
 639                 "|%s|%s|%s|%s|%s|",
 640                 uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received,
 641                 enrollee->config_methods, enrollee->dev_passwd_id, dev_type,
 642                 enrollee->dev_name ? enrollee->dev_name : "",
 643                 enrollee->manufacturer ? enrollee->manufacturer : "",
 644                 enrollee->model_name ? enrollee->model_name : "",
 645                 enrollee->model_number ? enrollee->model_number : "",
 646                 enrollee->serial_number ? enrollee->serial_number : "");
 647 }
 648
 649
 650 static void wpa_supplicant_wps_event_er_enrollee_remove(
 651         struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
 652 {
 653         char uuid_str[100];
 654         uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
 655         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR,
 656                 uuid_str, MAC2STR(enrollee->mac_addr));
 657 }
 658
 659
 660 static void wpa_supplicant_wps_event_er_ap_settings(
 661         struct wpa_supplicant *wpa_s,
 662         struct wps_event_er_ap_settings *ap_settings)
 663 {
 664         char uuid_str[100];
 665         char key_str[65];
 666         const struct wps_credential *cred = ap_settings->cred;
 667
 668         key_str[0] = '\0';
 669         if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
 670                 if (cred->key_len >= 8 && cred->key_len <= 64) {
 671                         os_memcpy(key_str, cred->key, cred->key_len);
 672                         key_str[cred->key_len] = '\0';
 673                 }
 674         }
 675
 676         uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str));
 677         /* Use wpa_msg_ctrl to avoid showing the key in debug log */
 678         wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS
 679                      "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x "
 680                      "key=%s",
 681                      uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len),
 682                      cred->auth_type, cred->encr_type, key_str);
 683 }
 684
 685
 686 static void wpa_supplicant_wps_event_er_set_sel_reg(
 687         struct wpa_supplicant *wpa_s,
 688         struct wps_event_er_set_selected_registrar *ev)
 689 {
 690         char uuid_str[100];
 691
 692         uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str));
 693         switch (ev->state) {
 694         case WPS_ER_SET_SEL_REG_START:
 695                 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
 696                         "uuid=%s state=START sel_reg=%d dev_passwd_id=%u "
 697                         "sel_reg_config_methods=0x%x",
 698                         uuid_str, ev->sel_reg, ev->dev_passwd_id,
 699                         ev->sel_reg_config_methods);
 700                 break;
 701         case WPS_ER_SET_SEL_REG_DONE:
 702                 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
 703                         "uuid=%s state=DONE", uuid_str);
 704                 break;
 705         case WPS_ER_SET_SEL_REG_FAILED:
 706                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG
 707                         "uuid=%s state=FAILED", uuid_str);
 708                 break;
 709         }
 710 }
 711
 712
 713 static void wpa_supplicant_wps_event(void *ctx, enum wps_event event,
 714                                      union wps_event_data *data)
 715 {
 716         struct wpa_supplicant *wpa_s = ctx;
 717         switch (event) {
 718         case WPS_EV_M2D:
 719                 wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d);
 720                 break;
 721         case WPS_EV_FAIL:
 722                 wpa_supplicant_wps_event_fail(wpa_s, &data->fail);
 723                 break;
 724         case WPS_EV_SUCCESS:
 725                 wpa_supplicant_wps_event_success(wpa_s);
 726                 break;
 727         case WPS_EV_PWD_AUTH_FAIL:
 728 #ifdef CONFIG_AP
 729                 if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee)
 730                         wpa_supplicant_ap_pwd_auth_fail(wpa_s);
 731 #endif /* CONFIG_AP */
 732                 break;
 733         case WPS_EV_PBC_OVERLAP:
 734                 break;
 735         case WPS_EV_PBC_TIMEOUT:
 736                 break;
 737         case WPS_EV_ER_AP_ADD:
 738                 wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap);
 739                 break;
 740         case WPS_EV_ER_AP_REMOVE:
 741                 wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap);
 742                 break;
 743         case WPS_EV_ER_ENROLLEE_ADD:
 744                 wpa_supplicant_wps_event_er_enrollee_add(wpa_s,
 745                                                          &data->enrollee);
 746                 break;
 747         case WPS_EV_ER_ENROLLEE_REMOVE:
 748                 wpa_supplicant_wps_event_er_enrollee_remove(wpa_s,
 749                                                             &data->enrollee);
 750                 break;
 751         case WPS_EV_ER_AP_SETTINGS:
 752                 wpa_supplicant_wps_event_er_ap_settings(wpa_s,
 753                                                         &data->ap_settings);
 754                 break;
 755         case WPS_EV_ER_SET_SELECTED_REGISTRAR:
 756                 wpa_supplicant_wps_event_er_set_sel_reg(wpa_s,
 757                                                         &data->set_sel_reg);
 758                 break;
 759         case WPS_EV_AP_PIN_SUCCESS:
 760                 break;
 761         }
 762 }
 763
 764
 765 enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid)
 766 {
 767         if (eap_is_wps_pbc_enrollee(&ssid->eap) ||
 768             eap_is_wps_pin_enrollee(&ssid->eap))
 769                 return WPS_REQ_ENROLLEE;
 770         else
 771                 return WPS_REQ_REGISTRAR;
 772 }
 773
 774
 775 static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
 776 {
 777         int id;
 778         struct wpa_ssid *ssid, *remove_ssid = NULL, *prev_current;
 779
 780         prev_current = wpa_s->current_ssid;
 781
 782         /* Enable the networks disabled during wpas_wps_reassoc */
 783         wpas_wps_reenable_networks(wpa_s);
 784
 785         eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
 786
 787         /* Remove any existing WPS network from configuration */
 788         ssid = wpa_s->conf->ssid;
 789         while (ssid) {
 790                 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
 791                         if (ssid == wpa_s->current_ssid) {
 792                                 wpa_s->current_ssid = NULL;
 793                                 if (ssid != NULL)
 794                                         wpas_notify_network_changed(wpa_s);
 795                         }
 796                         id = ssid->id;
 797                         remove_ssid = ssid;
 798                 } else
 799                         id = -1;
 800                 ssid = ssid->next;
 801                 if (id >= 0) {
 802                         if (prev_current == remove_ssid) {
 803                                 wpa_sm_set_config(wpa_s->wpa, NULL);
 804                                 eapol_sm_notify_config(wpa_s->eapol, NULL,
 805                                                        NULL);
 806                         }
 807                         wpas_notify_network_removed(wpa_s, remove_ssid);
 808                         wpa_config_remove_network(wpa_s->conf, id);
 809                 }
 810         }
 811
 812         wpas_wps_clear_ap_info(wpa_s);
 813 }
 814
 815
 816 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
 817 {
 818         struct wpa_supplicant *wpa_s = eloop_ctx;
 819         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
 820                 "out");
 821         wpas_clear_wps(wpa_s);
 822 }
 823
 824
 825 static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
 826                                               int registrar, const u8 *bssid)
 827 {
 828         struct wpa_ssid *ssid;
 829
 830         ssid = wpa_config_add_network(wpa_s->conf);
 831         if (ssid == NULL)
 832                 return NULL;
 833         wpas_notify_network_added(wpa_s, ssid);
 834         wpa_config_set_network_defaults(ssid);
 835         ssid->temporary = 1;
 836         if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 ||
 837             wpa_config_set(ssid, "eap", "WSC", 0) < 0 ||
 838             wpa_config_set(ssid, "identity", registrar ?
 839                            "\"" WSC_ID_REGISTRAR "\"" :
 840                            "\"" WSC_ID_ENROLLEE "\"", 0) < 0) {
 841                 wpas_notify_network_removed(wpa_s, ssid);
 842                 wpa_config_remove_network(wpa_s->conf, ssid->id);
 843                 return NULL;
 844         }
 845
 846         if (bssid) {
 847 #ifndef CONFIG_P2P
 848                 struct wpa_bss *bss;
 849                 int count = 0;
 850 #endif /* CONFIG_P2P */
 851
 852                 os_memcpy(ssid->bssid, bssid, ETH_ALEN);
 853                 ssid->bssid_set = 1;
 854
 855                 /*
 856                  * Note: With P2P, the SSID may change at the time the WPS
 857                  * provisioning is started, so better not filter the AP based
 858                  * on the current SSID in the scan results.
 859                  */
 860 #ifndef CONFIG_P2P
 861                 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
 862                         if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0)
 863                                 continue;
 864
 865                         os_free(ssid->ssid);
 866                         ssid->ssid = os_malloc(bss->ssid_len);
 867                         if (ssid->ssid == NULL)
 868                                 break;
 869                         os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
 870                         ssid->ssid_len = bss->ssid_len;
 871                         wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from "
 872                                           "scan results",
 873                                           ssid->ssid, ssid->ssid_len);
 874                         count++;
 875                 }
 876
 877                 if (count > 1) {
 878                         wpa_printf(MSG_DEBUG, "WPS: More than one SSID found "
 879                                    "for the AP; use wildcard");
 880                         os_free(ssid->ssid);
 881                         ssid->ssid = NULL;
 882                         ssid->ssid_len = 0;
 883                 }
 884 #endif /* CONFIG_P2P */
 885         }
 886
 887         return ssid;
 888 }
 889
 890
 891 static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
 892                              struct wpa_ssid *selected, const u8 *bssid)
 893 {
 894         struct wpa_ssid *ssid;
 895         struct wpa_bss *bss;
 896
 897         wpa_s->after_wps = 0;
 898         wpa_s->known_wps_freq = 0;
 899         if (bssid) {
 900                 bss = wpa_bss_get_bssid_latest(wpa_s, bssid);
 901                 if (bss && bss->freq > 0) {
 902                         wpa_s->known_wps_freq = 1;
 903                         wpa_s->wps_freq = bss->freq;
 904                 }
 905         }
 906
 907         if (wpa_s->current_ssid)
 908                 wpa_supplicant_deauthenticate(
 909                         wpa_s, WLAN_REASON_DEAUTH_LEAVING);
 910
 911         /* Mark all other networks disabled and trigger reassociation */
 912         ssid = wpa_s->conf->ssid;
 913         while (ssid) {
 914                 int was_disabled = ssid->disabled;
 915                 ssid->disabled_for_connect = 0;
 916                 /*
 917                  * In case the network object corresponds to a persistent group
 918                  * then do not send out network disabled signal. In addition,
 919                  * do not change disabled status of persistent network objects
 920                  * from 2 to 1 should we connect to another network.
 921                  */
 922                 if (was_disabled != 2) {
 923                         ssid->disabled = ssid != selected;
 924                         if (was_disabled != ssid->disabled) {
 925                                 if (ssid->disabled)
 926                                         ssid->disabled_for_connect = 1;
 927                                 wpas_notify_network_enabled_changed(wpa_s,
 928                                                                     ssid);
 929                         }
 930                 }
 931                 ssid = ssid->next;
 932         }
 933         wpa_s->disconnected = 0;
 934         wpa_s->reassociate = 1;
 935         wpa_s->scan_runs = 0;
 936         wpa_s->normal_scans = 0;
 937         wpa_s->wps_success = 0;
 938         wpa_s->blacklist_cleared = 0;
 939         wpa_supplicant_req_scan(wpa_s, 0, 0);
 940 }
 941
 942
 943 int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 944                        int p2p_group)
 945 {
 946         struct wpa_ssid *ssid;
 947         wpas_clear_wps(wpa_s);
 948         ssid = wpas_wps_add_network(wpa_s, 0, bssid);
 949         if (ssid == NULL)
 950                 return -1;
 951         ssid->temporary = 1;
 952         ssid->p2p_group = p2p_group;
 953 #ifdef CONFIG_P2P
 954         if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
 955                 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
 956                 if (ssid->ssid) {
 957                         ssid->ssid_len = wpa_s->go_params->ssid_len;
 958                         os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
 959                                   ssid->ssid_len);
 960                         wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
 961                                           "SSID", ssid->ssid, ssid->ssid_len);
 962                 }
 963         }
 964 #endif /* CONFIG_P2P */
 965         if (wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0) < 0)
 966                 return -1;
 967         if (wpa_s->wps_fragment_size)
 968                 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
 969         eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
 970                                wpa_s, NULL);
 971         wpas_wps_reassoc(wpa_s, ssid, bssid);
 972         return 0;
 973 }
 974
 975
 976 int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 977                        const char *pin, int p2p_group, u16 dev_pw_id)
 978 {
 979         struct wpa_ssid *ssid;
 980         char val[128];
 981         unsigned int rpin = 0;
 982
 983         wpas_clear_wps(wpa_s);
 984         ssid = wpas_wps_add_network(wpa_s, 0, bssid);
 985         if (ssid == NULL)
 986                 return -1;
 987         ssid->temporary = 1;
 988         ssid->p2p_group = p2p_group;
 989 #ifdef CONFIG_P2P
 990         if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
 991                 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
 992                 if (ssid->ssid) {
 993                         ssid->ssid_len = wpa_s->go_params->ssid_len;
 994                         os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
 995                                   ssid->ssid_len);
 996                         wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
 997                                           "SSID", ssid->ssid, ssid->ssid_len);
 998                 }
 999         }
1000 #endif /* CONFIG_P2P */
1001         if (pin)
1002                 os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u\"",
1003                             pin, dev_pw_id);
1004         else {
1005                 rpin = wps_generate_pin();
1006                 os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u\"",
1007                             rpin, dev_pw_id);
1008         }
1009         if (wpa_config_set(ssid, "phase1", val, 0) < 0)
1010                 return -1;
1011         if (wpa_s->wps_fragment_size)
1012                 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
1013         eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1014                                wpa_s, NULL);
1015         wpa_s->wps_ap_iter = 1;
1016         wpas_wps_reassoc(wpa_s, ssid, bssid);
1017         return rpin;
1018 }
1019
1020
1021 /* Cancel the wps pbc/pin requests */
1022 int wpas_wps_cancel(struct wpa_supplicant *wpa_s)
1023 {
1024 #ifdef CONFIG_AP
1025         if (wpa_s->ap_iface) {
1026                 wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode");
1027                 return wpa_supplicant_ap_wps_cancel(wpa_s);
1028         }
1029 #endif /* CONFIG_AP */
1030
1031         if (wpa_s->wpa_state == WPA_SCANNING ||
1032             wpa_s->wpa_state == WPA_DISCONNECTED) {
1033                 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan");
1034                 wpa_supplicant_cancel_scan(wpa_s);
1035                 wpas_clear_wps(wpa_s);
1036         } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
1037                 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - "
1038                            "deauthenticate");
1039                 wpa_supplicant_deauthenticate(wpa_s,
1040                                               WLAN_REASON_DEAUTH_LEAVING);
1041                 wpas_clear_wps(wpa_s);
1042         } else {
1043                 wpas_wps_reenable_networks(wpa_s);
1044                 wpas_wps_clear_ap_info(wpa_s);
1045         }
1046
1047         return 0;
1048 }
1049
1050
1051 int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
1052                        const char *pin, struct wps_new_ap_settings *settings)
1053 {
1054         struct wpa_ssid *ssid;
1055         char val[200];
1056         char *pos, *end;
1057         int res;
1058
1059         if (!pin)
1060                 return -1;
1061         wpas_clear_wps(wpa_s);
1062         ssid = wpas_wps_add_network(wpa_s, 1, bssid);
1063         if (ssid == NULL)
1064                 return -1;
1065         ssid->temporary = 1;
1066         pos = val;
1067         end = pos + sizeof(val);
1068         res = os_snprintf(pos, end - pos, "\"pin=%s", pin);
1069         if (res < 0 || res >= end - pos)
1070                 return -1;
1071         pos += res;
1072         if (settings) {
1073                 res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s "
1074                                   "new_encr=%s new_key=%s",
1075                                   settings->ssid_hex, settings->auth,
1076                                   settings->encr, settings->key_hex);
1077                 if (res < 0 || res >= end - pos)
1078                         return -1;
1079                 pos += res;
1080         }
1081         res = os_snprintf(pos, end - pos, "\"");
1082         if (res < 0 || res >= end - pos)
1083                 return -1;
1084         if (wpa_config_set(ssid, "phase1", val, 0) < 0)
1085                 return -1;
1086         if (wpa_s->wps_fragment_size)
1087                 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
1088         eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1089                                wpa_s, NULL);
1090         wpas_wps_reassoc(wpa_s, ssid, bssid);
1091         return 0;
1092 }
1093
1094
1095 static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
1096                                size_t psk_len)
1097 {
1098         wpa_printf(MSG_DEBUG, "WPS: Received new WPA/WPA2-PSK from WPS for "
1099                    "STA " MACSTR, MAC2STR(mac_addr));
1100         wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
1101
1102         /* TODO */
1103
1104         return 0;
1105 }
1106
1107
1108 static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
1109                                    const struct wps_device_data *dev)
1110 {
1111         char uuid[40], txt[400];
1112         int len;
1113         char devtype[WPS_DEV_TYPE_BUFSIZE];
1114         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
1115                 return;
1116         wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid);
1117         len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR
1118                           " [%s|%s|%s|%s|%s|%s]",
1119                           uuid, MAC2STR(dev->mac_addr), dev->device_name,
1120                           dev->manufacturer, dev->model_name,
1121                           dev->model_number, dev->serial_number,
1122                           wps_dev_type_bin2str(dev->pri_dev_type, devtype,
1123                                                sizeof(devtype)));
1124         if (len > 0 && len < (int) sizeof(txt))
1125                 wpa_printf(MSG_INFO, "%s", txt);
1126 }
1127
1128
1129 static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id,
1130                                     u16 sel_reg_config_methods)
1131 {
1132 #ifdef CONFIG_WPS_ER
1133         struct wpa_supplicant *wpa_s = ctx;
1134
1135         if (wpa_s->wps_er == NULL)
1136                 return;
1137         wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d "
1138                    "dev_password_id=%u sel_reg_config_methods=0x%x",
1139                    sel_reg, dev_passwd_id, sel_reg_config_methods);
1140         wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id,
1141                            sel_reg_config_methods);
1142 #endif /* CONFIG_WPS_ER */
1143 }
1144
1145
1146 static u16 wps_fix_config_methods(u16 config_methods)
1147 {
1148 #ifdef CONFIG_WPS2
1149         if ((config_methods &
1150              (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
1151               WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
1152                 wpa_printf(MSG_INFO, "WPS: Converting display to "
1153                            "virtual_display for WPS 2.0 compliance");
1154                 config_methods |= WPS_CONFIG_VIRT_DISPLAY;
1155         }
1156         if ((config_methods &
1157              (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
1158               WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
1159                 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
1160                            "virtual_push_button for WPS 2.0 compliance");
1161                 config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
1162         }
1163 #endif /* CONFIG_WPS2 */
1164
1165         return config_methods;
1166 }
1167
1168
1169 static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s,
1170                               struct wps_context *wps)
1171 {
1172         wpa_printf(MSG_DEBUG, "WPS: Set UUID for interface %s", wpa_s->ifname);
1173         if (is_nil_uuid(wpa_s->conf->uuid)) {
1174                 struct wpa_supplicant *first;
1175                 first = wpa_s->global->ifaces;
1176                 while (first && first->next)
1177                         first = first->next;
1178                 if (first && first != wpa_s) {
1179                         if (wps != wpa_s->global->ifaces->wps)
1180                                 os_memcpy(wps->uuid,
1181                                           wpa_s->global->ifaces->wps->uuid,
1182                                           WPS_UUID_LEN);
1183                         wpa_hexdump(MSG_DEBUG, "WPS: UUID from the first "
1184                                     "interface", wps->uuid, WPS_UUID_LEN);
1185                 } else {
1186                         uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
1187                         wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
1188                                     "address", wps->uuid, WPS_UUID_LEN);
1189                 }
1190         } else {
1191                 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
1192                 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on configuration",
1193                             wps->uuid, WPS_UUID_LEN);
1194         }
1195 }
1196
1197
1198 static void wpas_wps_set_vendor_ext_m1(struct wpa_supplicant *wpa_s,
1199                                        struct wps_context *wps)
1200 {
1201         wpabuf_free(wps->dev.vendor_ext_m1);
1202         wps->dev.vendor_ext_m1 = NULL;
1203
1204         if (wpa_s->conf->wps_vendor_ext_m1) {
1205                 wps->dev.vendor_ext_m1 =
1206                         wpabuf_dup(wpa_s->conf->wps_vendor_ext_m1);
1207                 if (!wps->dev.vendor_ext_m1) {
1208                         wpa_printf(MSG_ERROR, "WPS: Cannot "
1209                                    "allocate memory for vendor_ext_m1");
1210                 }
1211         }
1212 }
1213
1214
1215 int wpas_wps_init(struct wpa_supplicant *wpa_s)
1216 {
1217         struct wps_context *wps;
1218         struct wps_registrar_config rcfg;
1219         struct hostapd_hw_modes *modes;
1220         u16 m;
1221
1222         wps = os_zalloc(sizeof(*wps));
1223         if (wps == NULL)
1224                 return -1;
1225
1226         wps->cred_cb = wpa_supplicant_wps_cred;
1227         wps->event_cb = wpa_supplicant_wps_event;
1228         wps->cb_ctx = wpa_s;
1229
1230         wps->dev.device_name = wpa_s->conf->device_name;
1231         wps->dev.manufacturer = wpa_s->conf->manufacturer;
1232         wps->dev.model_name = wpa_s->conf->model_name;
1233         wps->dev.model_number = wpa_s->conf->model_number;
1234         wps->dev.serial_number = wpa_s->conf->serial_number;
1235         wps->config_methods =
1236                 wps_config_methods_str2bin(wpa_s->conf->config_methods);
1237         if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1238             (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1239                 wpa_printf(MSG_ERROR, "WPS: Both Label and Display config "
1240                            "methods are not allowed at the same time");
1241                 os_free(wps);
1242                 return -1;
1243         }
1244         wps->config_methods = wps_fix_config_methods(wps->config_methods);
1245         wps->dev.config_methods = wps->config_methods;
1246         os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1247                   WPS_DEV_TYPE_LEN);
1248
1249         wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1250         os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1251                   WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types);
1252
1253         wpas_wps_set_vendor_ext_m1(wpa_s, wps);
1254
1255         wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1256         modes = wpa_s->hw.modes;
1257         if (modes) {
1258                 for (m = 0; m < wpa_s->hw.num_modes; m++) {
1259                         if (modes[m].mode == HOSTAPD_MODE_IEEE80211B ||
1260                             modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1261                                 wps->dev.rf_bands |= WPS_RF_24GHZ;
1262                         else if (modes[m].mode == HOSTAPD_MODE_IEEE80211A)
1263                                 wps->dev.rf_bands |= WPS_RF_50GHZ;
1264                 }
1265         }
1266         if (wps->dev.rf_bands == 0) {
1267                 /*
1268                  * Default to claiming support for both bands if the driver
1269                  * does not provide support for fetching supported bands.
1270                  */
1271                 wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ;
1272         }
1273         os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
1274         wpas_wps_set_uuid(wpa_s, wps);
1275
1276         wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
1277         wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
1278
1279         os_memset(&rcfg, 0, sizeof(rcfg));
1280         rcfg.new_psk_cb = wpas_wps_new_psk_cb;
1281         rcfg.pin_needed_cb = wpas_wps_pin_needed_cb;
1282         rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb;
1283         rcfg.cb_ctx = wpa_s;
1284
1285         wps->registrar = wps_registrar_init(wps, &rcfg);
1286         if (wps->registrar == NULL) {
1287                 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar");
1288                 os_free(wps);
1289                 return -1;
1290         }
1291
1292         wpa_s->wps = wps;
1293
1294         return 0;
1295 }
1296
1297
1298 void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
1299 {
1300         eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
1301         eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL);
1302         wpas_wps_clear_ap_info(wpa_s);
1303
1304         if (wpa_s->wps == NULL)
1305                 return;
1306
1307 #ifdef CONFIG_WPS_ER
1308         wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1309         wpa_s->wps_er = NULL;
1310 #endif /* CONFIG_WPS_ER */
1311
1312         wps_registrar_deinit(wpa_s->wps->registrar);
1313         wpabuf_free(wpa_s->wps->dh_pubkey);
1314         wpabuf_free(wpa_s->wps->dh_privkey);
1315         wpabuf_free(wpa_s->wps->dev.vendor_ext_m1);
1316         os_free(wpa_s->wps->network_key);
1317         os_free(wpa_s->wps);
1318         wpa_s->wps = NULL;
1319 }
1320
1321
1322 int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
1323                             struct wpa_ssid *ssid, struct wpa_bss *bss)
1324 {
1325         struct wpabuf *wps_ie;
1326
1327         if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
1328                 return -1;
1329
1330         wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1331         if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1332                 if (!wps_ie) {
1333                         wpa_printf(MSG_DEBUG, "   skip - non-WPS AP");
1334                         return 0;
1335                 }
1336
1337                 if (!wps_is_selected_pbc_registrar(wps_ie)) {
1338                         wpa_printf(MSG_DEBUG, "   skip - WPS AP "
1339                                    "without active PBC Registrar");
1340                         wpabuf_free(wps_ie);
1341                         return 0;
1342                 }
1343
1344                 /* TODO: overlap detection */
1345                 wpa_printf(MSG_DEBUG, "   selected based on WPS IE "
1346                            "(Active PBC)");
1347                 wpabuf_free(wps_ie);
1348                 return 1;
1349         }
1350
1351         if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1352                 if (!wps_ie) {
1353                         wpa_printf(MSG_DEBUG, "   skip - non-WPS AP");
1354                         return 0;
1355                 }
1356
1357                 /*
1358                  * Start with WPS APs that advertise our address as an
1359                  * authorized MAC (v2.0) or active PIN Registrar (v1.0) and
1360                  * allow any WPS AP after couple of scans since some APs do not
1361                  * set Selected Registrar attribute properly when using
1362                  * external Registrar.
1363                  */
1364                 if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) {
1365                         if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG) {
1366                                 wpa_printf(MSG_DEBUG, "   skip - WPS AP "
1367                                            "without active PIN Registrar");
1368                                 wpabuf_free(wps_ie);
1369                                 return 0;
1370                         }
1371                         wpa_printf(MSG_DEBUG, "   selected based on WPS IE");
1372                 } else {
1373                         wpa_printf(MSG_DEBUG, "   selected based on WPS IE "
1374                                    "(Authorized MAC or Active PIN)");
1375                 }
1376                 wpabuf_free(wps_ie);
1377                 return 1;
1378         }
1379
1380         if (wps_ie) {
1381                 wpa_printf(MSG_DEBUG, "   selected based on WPS IE");
1382                 wpabuf_free(wps_ie);
1383                 return 1;
1384         }
1385
1386         return -1;
1387 }
1388
1389
1390 int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
1391                               struct wpa_ssid *ssid,
1392                               struct wpa_bss *bss)
1393 {
1394         struct wpabuf *wps_ie = NULL;
1395         int ret = 0;
1396
1397         if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1398                 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1399                 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) {
1400                         /* allow wildcard SSID for WPS PBC */
1401                         ret = 1;
1402                 }
1403         } else if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1404                 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1405                 if (wps_ie &&
1406                     (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) ||
1407                      wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) {
1408                         /* allow wildcard SSID for WPS PIN */
1409                         ret = 1;
1410                 }
1411         }
1412
1413         if (!ret && ssid->bssid_set &&
1414             os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) {
1415                 /* allow wildcard SSID due to hardcoded BSSID match */
1416                 ret = 1;
1417         }
1418
1419 #ifdef CONFIG_WPS_STRICT
1420         if (wps_ie) {
1421                 if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len >
1422                                                    0, bss->bssid) < 0)
1423                         ret = 0;
1424                 if (bss->beacon_ie_len) {
1425                         struct wpabuf *bcn_wps;
1426                         bcn_wps = wpa_bss_get_vendor_ie_multi_beacon(
1427                                 bss, WPS_IE_VENDOR_TYPE);
1428                         if (bcn_wps == NULL) {
1429                                 wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE "
1430                                            "missing from AP Beacon");
1431                                 ret = 0;
1432                         } else {
1433                                 if (wps_validate_beacon(wps_ie) < 0)
1434                                         ret = 0;
1435                                 wpabuf_free(bcn_wps);
1436                         }
1437                 }
1438         }
1439 #endif /* CONFIG_WPS_STRICT */
1440
1441         wpabuf_free(wps_ie);
1442
1443         return ret;
1444 }
1445
1446
1447 int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
1448                               struct wpa_bss *selected, struct wpa_ssid *ssid)
1449 {
1450         const u8 *sel_uuid, *uuid;
1451         struct wpabuf *wps_ie;
1452         int ret = 0;
1453         struct wpa_bss *bss;
1454
1455         if (!eap_is_wps_pbc_enrollee(&ssid->eap))
1456                 return 0;
1457
1458         wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is "
1459                    "present in scan results; selected BSSID " MACSTR,
1460                    MAC2STR(selected->bssid));
1461
1462         /* Make sure that only one AP is in active PBC mode */
1463         wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE);
1464         if (wps_ie) {
1465                 sel_uuid = wps_get_uuid_e(wps_ie);
1466                 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS",
1467                             sel_uuid, UUID_LEN);
1468         } else {
1469                 wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include "
1470                            "WPS IE?!");
1471                 sel_uuid = NULL;
1472         }
1473
1474         dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1475                 struct wpabuf *ie;
1476                 if (bss == selected)
1477                         continue;
1478                 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1479                 if (!ie)
1480                         continue;
1481                 if (!wps_is_selected_pbc_registrar(ie)) {
1482                         wpabuf_free(ie);
1483                         continue;
1484                 }
1485                 wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: "
1486                            MACSTR, MAC2STR(bss->bssid));
1487                 uuid = wps_get_uuid_e(ie);
1488                 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS",
1489                             uuid, UUID_LEN);
1490                 if (sel_uuid == NULL || uuid == NULL ||
1491                     os_memcmp(sel_uuid, uuid, UUID_LEN) != 0) {
1492                         ret = 1; /* PBC overlap */
1493                         wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: "
1494                                 MACSTR " and " MACSTR,
1495                                 MAC2STR(selected->bssid),
1496                                 MAC2STR(bss->bssid));
1497                         wpabuf_free(ie);
1498                         break;
1499                 }
1500
1501                 /* TODO: verify that this is reasonable dual-band situation */
1502
1503                 wpabuf_free(ie);
1504         }
1505
1506         wpabuf_free(wps_ie);
1507
1508         return ret;
1509 }
1510
1511
1512 void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
1513 {
1514         struct wpa_bss *bss;
1515         unsigned int pbc = 0, auth = 0, pin = 0, wps = 0;
1516
1517         if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED)
1518                 return;
1519
1520         dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1521                 struct wpabuf *ie;
1522                 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1523                 if (!ie)
1524                         continue;
1525                 if (wps_is_selected_pbc_registrar(ie))
1526                         pbc++;
1527                 else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0))
1528                         auth++;
1529                 else if (wps_is_selected_pin_registrar(ie))
1530                         pin++;
1531                 else
1532                         wps++;
1533                 wpabuf_free(ie);
1534         }
1535
1536         if (pbc)
1537                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC);
1538         else if (auth)
1539                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH);
1540         else if (pin)
1541                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN);
1542         else if (wps)
1543                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE);
1544 }
1545
1546
1547 int wpas_wps_searching(struct wpa_supplicant *wpa_s)
1548 {
1549         struct wpa_ssid *ssid;
1550
1551         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1552                 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled)
1553                         return 1;
1554         }
1555
1556         return 0;
1557 }
1558
1559
1560 int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
1561                               char *end)
1562 {
1563         struct wpabuf *wps_ie;
1564         int ret;
1565
1566         wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA);
1567         if (wps_ie == NULL)
1568                 return 0;
1569
1570         ret = wps_attr_text(wps_ie, buf, end);
1571         wpabuf_free(wps_ie);
1572         return ret;
1573 }
1574
1575
1576 int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter)
1577 {
1578 #ifdef CONFIG_WPS_ER
1579         if (wpa_s->wps_er) {
1580                 wps_er_refresh(wpa_s->wps_er);
1581                 return 0;
1582         }
1583         wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter);
1584         if (wpa_s->wps_er == NULL)
1585                 return -1;
1586         return 0;
1587 #else /* CONFIG_WPS_ER */
1588         return 0;
1589 #endif /* CONFIG_WPS_ER */
1590 }
1591
1592
1593 int wpas_wps_er_stop(struct wpa_supplicant *wpa_s)
1594 {
1595 #ifdef CONFIG_WPS_ER
1596         wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1597         wpa_s->wps_er = NULL;
1598 #endif /* CONFIG_WPS_ER */
1599         return 0;
1600 }
1601
1602
1603 #ifdef CONFIG_WPS_ER
1604 int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr,
1605                         const char *uuid, const char *pin)
1606 {
1607         u8 u[UUID_LEN];
1608         const u8 *use_uuid = NULL;
1609         u8 addr_buf[ETH_ALEN];
1610
1611         if (os_strcmp(uuid, "any") == 0) {
1612         } else if (uuid_str2bin(uuid, u) == 0) {
1613                 use_uuid = u;
1614         } else if (hwaddr_aton(uuid, addr_buf) == 0) {
1615                 use_uuid = wps_er_get_sta_uuid(wpa_s->wps_er, addr_buf);
1616                 if (use_uuid == NULL)
1617                         return -1;
1618         } else
1619                 return -1;
1620         return wps_registrar_add_pin(wpa_s->wps->registrar, addr,
1621                                      use_uuid,
1622                                      (const u8 *) pin, os_strlen(pin), 300);
1623 }
1624
1625
1626 int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid)
1627 {
1628         u8 u[UUID_LEN], *use_uuid = NULL;
1629         u8 addr[ETH_ALEN], *use_addr = NULL;
1630
1631         if (uuid_str2bin(uuid, u) == 0)
1632                 use_uuid = u;
1633         else if (hwaddr_aton(uuid, addr) == 0)
1634                 use_addr = addr;
1635         else
1636                 return -1;
1637         return wps_er_pbc(wpa_s->wps_er, use_uuid, use_addr);
1638 }
1639
1640
1641 int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid,
1642                       const char *pin)
1643 {
1644         u8 u[UUID_LEN], *use_uuid = NULL;
1645         u8 addr[ETH_ALEN], *use_addr = NULL;
1646
1647         if (uuid_str2bin(uuid, u) == 0)
1648                 use_uuid = u;
1649         else if (hwaddr_aton(uuid, addr) == 0)
1650                 use_addr = addr;
1651         else
1652                 return -1;
1653
1654         return wps_er_learn(wpa_s->wps_er, use_uuid, use_addr, (const u8 *) pin,
1655                             os_strlen(pin));
1656 }
1657
1658
1659 static int wpas_wps_network_to_cred(struct wpa_ssid *ssid,
1660                                     struct wps_credential *cred)
1661 {
1662         os_memset(cred, 0, sizeof(*cred));
1663         if (ssid->ssid_len > 32)
1664                 return -1;
1665         os_memcpy(cred->ssid, ssid->ssid, ssid->ssid_len);
1666         cred->ssid_len = ssid->ssid_len;
1667         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
1668                 cred->auth_type = (ssid->proto & WPA_PROTO_RSN) ?
1669                         WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK;
1670                 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
1671                         cred->encr_type = WPS_ENCR_AES;
1672                 else
1673                         cred->encr_type = WPS_ENCR_TKIP;
1674                 if (ssid->passphrase) {
1675                         cred->key_len = os_strlen(ssid->passphrase);
1676                         if (cred->key_len >= 64)
1677                                 return -1;
1678                         os_memcpy(cred->key, ssid->passphrase, cred->key_len);
1679                 } else if (ssid->psk_set) {
1680                         cred->key_len = 32;
1681                         os_memcpy(cred->key, ssid->psk, 32);
1682                 } else
1683                         return -1;
1684         } else {
1685                 cred->auth_type = WPS_AUTH_OPEN;
1686                 cred->encr_type = WPS_ENCR_NONE;
1687         }
1688
1689         return 0;
1690 }
1691
1692
1693 int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid,
1694                            int id)
1695 {
1696         u8 u[UUID_LEN], *use_uuid = NULL;
1697         u8 addr[ETH_ALEN], *use_addr = NULL;
1698         struct wpa_ssid *ssid;
1699         struct wps_credential cred;
1700
1701         if (uuid_str2bin(uuid, u) == 0)
1702                 use_uuid = u;
1703         else if (hwaddr_aton(uuid, addr) == 0)
1704                 use_addr = addr;
1705         else
1706                 return -1;
1707         ssid = wpa_config_get_network(wpa_s->conf, id);
1708         if (ssid == NULL || ssid->ssid == NULL)
1709                 return -1;
1710
1711         if (wpas_wps_network_to_cred(ssid, &cred) < 0)
1712                 return -1;
1713         return wps_er_set_config(wpa_s->wps_er, use_uuid, use_addr, &cred);
1714 }
1715
1716
1717 int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid,
1718                        const char *pin, struct wps_new_ap_settings *settings)
1719 {
1720         u8 u[UUID_LEN], *use_uuid = NULL;
1721         u8 addr[ETH_ALEN], *use_addr = NULL;
1722         struct wps_credential cred;
1723         size_t len;
1724
1725         if (uuid_str2bin(uuid, u) == 0)
1726                 use_uuid = u;
1727         else if (hwaddr_aton(uuid, addr) == 0)
1728                 use_addr = addr;
1729         else
1730                 return -1;
1731         if (settings->ssid_hex == NULL || settings->auth == NULL ||
1732             settings->encr == NULL || settings->key_hex == NULL)
1733                 return -1;
1734
1735         os_memset(&cred, 0, sizeof(cred));
1736         len = os_strlen(settings->ssid_hex);
1737         if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
1738             hexstr2bin(settings->ssid_hex, cred.ssid, len / 2))
1739                 return -1;
1740         cred.ssid_len = len / 2;
1741
1742         len = os_strlen(settings->key_hex);
1743         if ((len & 1) || len > 2 * sizeof(cred.key) ||
1744             hexstr2bin(settings->key_hex, cred.key, len / 2))
1745                 return -1;
1746         cred.key_len = len / 2;
1747
1748         if (os_strcmp(settings->auth, "OPEN") == 0)
1749                 cred.auth_type = WPS_AUTH_OPEN;
1750         else if (os_strcmp(settings->auth, "WPAPSK") == 0)
1751                 cred.auth_type = WPS_AUTH_WPAPSK;
1752         else if (os_strcmp(settings->auth, "WPA2PSK") == 0)
1753                 cred.auth_type = WPS_AUTH_WPA2PSK;
1754         else
1755                 return -1;
1756
1757         if (os_strcmp(settings->encr, "NONE") == 0)
1758                 cred.encr_type = WPS_ENCR_NONE;
1759         else if (os_strcmp(settings->encr, "WEP") == 0)
1760                 cred.encr_type = WPS_ENCR_WEP;
1761         else if (os_strcmp(settings->encr, "TKIP") == 0)
1762                 cred.encr_type = WPS_ENCR_TKIP;
1763         else if (os_strcmp(settings->encr, "CCMP") == 0)
1764                 cred.encr_type = WPS_ENCR_AES;
1765         else
1766                 return -1;
1767
1768         return wps_er_config(wpa_s->wps_er, use_uuid, use_addr,
1769                              (const u8 *) pin, os_strlen(pin), &cred);
1770 }
1771
1772
1773 #ifdef CONFIG_WPS_NFC
1774 struct wpabuf * wpas_wps_er_nfc_config_token(struct wpa_supplicant *wpa_s,
1775                                              int ndef, const char *uuid)
1776 {
1777         struct wpabuf *ret;
1778         u8 u[UUID_LEN], *use_uuid = NULL;
1779         u8 addr[ETH_ALEN], *use_addr = NULL;
1780
1781         if (!wpa_s->wps_er)
1782                 return NULL;
1783
1784         if (uuid_str2bin(uuid, u) == 0)
1785                 use_uuid = u;
1786         else if (hwaddr_aton(uuid, addr) == 0)
1787                 use_addr = addr;
1788         else
1789                 return NULL;
1790
1791         ret = wps_er_nfc_config_token(wpa_s->wps_er, use_uuid, use_addr);
1792         if (ndef && ret) {
1793                 struct wpabuf *tmp;
1794                 tmp = ndef_build_wifi(ret);
1795                 wpabuf_free(ret);
1796                 if (tmp == NULL)
1797                         return NULL;
1798                 ret = tmp;
1799         }
1800
1801         return ret;
1802 }
1803 #endif /* CONFIG_WPS_NFC */
1804
1805
1806 static int callbacks_pending = 0;
1807
1808 static void wpas_wps_terminate_cb(void *ctx)
1809 {
1810         wpa_printf(MSG_DEBUG, "WPS ER: Terminated");
1811         if (--callbacks_pending <= 0)
1812                 eloop_terminate();
1813 }
1814 #endif /* CONFIG_WPS_ER */
1815
1816
1817 int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s)
1818 {
1819 #ifdef CONFIG_WPS_ER
1820         if (wpa_s->wps_er) {
1821                 callbacks_pending++;
1822                 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s);
1823                 wpa_s->wps_er = NULL;
1824                 return 1;
1825         }
1826 #endif /* CONFIG_WPS_ER */
1827         return 0;
1828 }
1829
1830
1831 int wpas_wps_in_progress(struct wpa_supplicant *wpa_s)
1832 {
1833         struct wpa_ssid *ssid;
1834
1835         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1836                 if (!ssid->disabled && ssid->key_mgmt == WPA_KEY_MGMT_WPS)
1837                         return 1;
1838         }
1839
1840         return 0;
1841 }
1842
1843
1844 void wpas_wps_update_config(struct wpa_supplicant *wpa_s)
1845 {
1846         struct wps_context *wps = wpa_s->wps;
1847
1848         if (wps == NULL)
1849                 return;
1850
1851         if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) {
1852                 wps->config_methods = wps_config_methods_str2bin(
1853                         wpa_s->conf->config_methods);
1854                 if ((wps->config_methods &
1855                      (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1856                     (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1857                         wpa_printf(MSG_ERROR, "WPS: Both Label and Display "
1858                                    "config methods are not allowed at the "
1859                                    "same time");
1860                         wps->config_methods &= ~WPS_CONFIG_LABEL;
1861                 }
1862         }
1863         wps->config_methods = wps_fix_config_methods(wps->config_methods);
1864         wps->dev.config_methods = wps->config_methods;
1865
1866         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
1867                 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1868                           WPS_DEV_TYPE_LEN);
1869
1870         if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) {
1871                 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1872                 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1873                           wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN);
1874         }
1875
1876         if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION)
1877                 wpas_wps_set_vendor_ext_m1(wpa_s, wps);
1878
1879         if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION)
1880                 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1881
1882         if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID)
1883                 wpas_wps_set_uuid(wpa_s, wps);
1884
1885         if (wpa_s->conf->changed_parameters &
1886             (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) {
1887                 /* Update pointers to make sure they refer current values */
1888                 wps->dev.device_name = wpa_s->conf->device_name;
1889                 wps->dev.manufacturer = wpa_s->conf->manufacturer;
1890                 wps->dev.model_name = wpa_s->conf->model_name;
1891                 wps->dev.model_number = wpa_s->conf->model_number;
1892                 wps->dev.serial_number = wpa_s->conf->serial_number;
1893         }
1894 }
1895
1896
1897 #ifdef CONFIG_WPS_NFC
1898
1899 #ifdef CONFIG_WPS_ER
1900 static struct wpabuf *
1901 wpas_wps_network_config_token(struct wpa_supplicant *wpa_s, int ndef,
1902                               struct wpa_ssid *ssid)
1903 {
1904         struct wpabuf *ret;
1905         struct wps_credential cred;
1906
1907         if (wpas_wps_network_to_cred(ssid, &cred) < 0)
1908                 return NULL;
1909
1910         ret = wps_er_config_token_from_cred(wpa_s->wps, &cred);
1911
1912         if (ndef && ret) {
1913                 struct wpabuf *tmp;
1914                 tmp = ndef_build_wifi(ret);
1915                 wpabuf_free(ret);
1916                 if (tmp == NULL)
1917                         return NULL;
1918                 ret = tmp;
1919         }
1920
1921         return ret;
1922 }
1923 #endif /* CONFIG_WPS_ER */
1924
1925
1926 struct wpabuf * wpas_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
1927                                           int ndef, const char *id_str)
1928 {
1929 #ifdef CONFIG_WPS_ER
1930         if (id_str) {
1931                 int id;
1932                 char *end = NULL;
1933                 struct wpa_ssid *ssid;
1934
1935                 id = strtol(id_str, &end, 10);
1936                 if (end && *end)
1937                         return NULL;
1938
1939                 ssid = wpa_config_get_network(wpa_s->conf, id);
1940                 if (ssid == NULL)
1941                         return NULL;
1942                 return wpas_wps_network_config_token(wpa_s, ndef, ssid);
1943         }
1944 #endif /* CONFIG_WPS_ER */
1945 #ifdef CONFIG_AP
1946         if (wpa_s->ap_iface)
1947                 return wpas_ap_wps_nfc_config_token(wpa_s, ndef);
1948 #endif /* CONFIG_AP */
1949         return NULL;
1950 }
1951
1952
1953 struct wpabuf * wpas_wps_nfc_token(struct wpa_supplicant *wpa_s, int ndef)
1954 {
1955         if (wpa_s->conf->wps_nfc_pw_from_config) {
1956                 return wps_nfc_token_build(ndef,
1957                                            wpa_s->conf->wps_nfc_dev_pw_id,
1958                                            wpa_s->conf->wps_nfc_dh_pubkey,
1959                                            wpa_s->conf->wps_nfc_dev_pw);
1960         }
1961
1962         return wps_nfc_token_gen(ndef, &wpa_s->conf->wps_nfc_dev_pw_id,
1963                                  &wpa_s->conf->wps_nfc_dh_pubkey,
1964                                  &wpa_s->conf->wps_nfc_dh_privkey,
1965                                  &wpa_s->conf->wps_nfc_dev_pw);
1966 }
1967
1968
1969 int wpas_wps_start_nfc(struct wpa_supplicant *wpa_s, const u8 *bssid)
1970 {
1971         struct wps_context *wps = wpa_s->wps;
1972         char pw[32 * 2 + 1];
1973
1974         if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
1975             wpa_s->conf->wps_nfc_dh_privkey == NULL ||
1976             wpa_s->conf->wps_nfc_dev_pw == NULL)
1977                 return -1;
1978
1979         dh5_free(wps->dh_ctx);
1980         wpabuf_free(wps->dh_pubkey);
1981         wpabuf_free(wps->dh_privkey);
1982         wps->dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
1983         wps->dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
1984         if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) {
1985                 wps->dh_ctx = NULL;
1986                 wpabuf_free(wps->dh_pubkey);
1987                 wps->dh_pubkey = NULL;
1988                 wpabuf_free(wps->dh_privkey);
1989                 wps->dh_privkey = NULL;
1990                 return -1;
1991         }
1992         wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey);
1993         if (wps->dh_ctx == NULL) {
1994                 wpabuf_free(wps->dh_pubkey);
1995                 wps->dh_pubkey = NULL;
1996                 wpabuf_free(wps->dh_privkey);
1997                 wps->dh_privkey = NULL;
1998                 return -1;
1999         }
2000
2001         wpa_snprintf_hex_uppercase(pw, sizeof(pw),
2002                                    wpabuf_head(wpa_s->conf->wps_nfc_dev_pw),
2003                                    wpabuf_len(wpa_s->conf->wps_nfc_dev_pw));
2004         return wpas_wps_start_pin(wpa_s, bssid, pw, 0,
2005                                   wpa_s->conf->wps_nfc_dev_pw_id);
2006 }
2007
2008
2009 static int wpas_wps_use_cred(struct wpa_supplicant *wpa_s,
2010                              struct wps_parse_attr *attr)
2011 {
2012         wpa_s->wps_ap_channel = 0;
2013
2014         if (wps_oob_use_cred(wpa_s->wps, attr) < 0)
2015                 return -1;
2016
2017         if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
2018                 return 0;
2019
2020         wpa_printf(MSG_DEBUG, "WPS: Request reconnection with new network "
2021                    "based on the received credential added");
2022         wpa_s->normal_scans = 0;
2023         wpa_supplicant_reinit_autoscan(wpa_s);
2024         if (wpa_s->wps_ap_channel) {
2025                 u16 chan = wpa_s->wps_ap_channel;
2026                 int freq = 0;
2027
2028                 if (chan >= 1 && chan <= 13)
2029                         freq = 2407 + 5 * chan;
2030                 else if (chan == 14)
2031                         freq = 2484;
2032                 else if (chan >= 30)
2033                         freq = 5000 + 5 * chan;
2034
2035                 if (freq) {
2036                         wpa_printf(MSG_DEBUG, "WPS: Credential indicated "
2037                                    "AP channel %u -> %u MHz", chan, freq);
2038                         wpa_s->after_wps = 5;
2039                         wpa_s->wps_freq = freq;
2040                 }
2041         }
2042         wpa_s->disconnected = 0;
2043         wpa_s->reassociate = 1;
2044         wpa_supplicant_req_scan(wpa_s, 0, 0);
2045
2046         return 0;
2047 }
2048
2049
2050 #ifdef CONFIG_WPS_ER
2051 static int wpas_wps_add_nfc_password_token(struct wpa_supplicant *wpa_s,
2052                                            struct wps_parse_attr *attr)
2053 {
2054         return wps_registrar_add_nfc_password_token(
2055                 wpa_s->wps->registrar, attr->oob_dev_password,
2056                 attr->oob_dev_password_len);
2057 }
2058 #endif /* CONFIG_WPS_ER */
2059
2060
2061 static int wpas_wps_nfc_tag_process(struct wpa_supplicant *wpa_s,
2062                                     const struct wpabuf *wps)
2063 {
2064         struct wps_parse_attr attr;
2065
2066         wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps);
2067
2068         if (wps_parse_msg(wps, &attr)) {
2069                 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag");
2070                 return -1;
2071         }
2072
2073         if (attr.num_cred)
2074                 return wpas_wps_use_cred(wpa_s, &attr);
2075
2076 #ifdef CONFIG_WPS_ER
2077         if (attr.oob_dev_password)
2078                 return wpas_wps_add_nfc_password_token(wpa_s, &attr);
2079 #endif /* CONFIG_WPS_ER */
2080
2081         wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag");
2082         return -1;
2083 }
2084
2085
2086 int wpas_wps_nfc_tag_read(struct wpa_supplicant *wpa_s,
2087                           const struct wpabuf *data)
2088 {
2089         const struct wpabuf *wps = data;
2090         struct wpabuf *tmp = NULL;
2091         int ret;
2092
2093         if (wpabuf_len(data) < 4)
2094                 return -1;
2095
2096         if (*wpabuf_head_u8(data) != 0x10) {
2097                 /* Assume this contains full NDEF record */
2098                 tmp = ndef_parse_wifi(data);
2099                 if (tmp == NULL) {
2100                         wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF");
2101                         return -1;
2102                 }
2103                 wps = tmp;
2104         }
2105
2106         ret = wpas_wps_nfc_tag_process(wpa_s, wps);
2107         wpabuf_free(tmp);
2108         return ret;
2109 }
2110
2111
2112 struct wpabuf * wpas_wps_nfc_handover_req(struct wpa_supplicant *wpa_s, int cr)
2113 {
2114         if (cr)
2115                 return ndef_build_wifi_hc(1);
2116         return ndef_build_wifi_hr();
2117 }
2118
2119
2120 #ifdef CONFIG_WPS_NFC
2121 struct wpabuf * wpas_wps_er_nfc_handover_sel(struct wpa_supplicant *wpa_s,
2122                                              int ndef, const char *uuid)
2123 {
2124 #ifdef CONFIG_WPS_ER
2125         struct wpabuf *ret;
2126         u8 u[UUID_LEN], *use_uuid = NULL;
2127         u8 addr[ETH_ALEN], *use_addr = NULL;
2128
2129         if (!wpa_s->wps_er)
2130                 return NULL;
2131
2132         if (uuid == NULL)
2133                 return NULL;
2134         if (uuid_str2bin(uuid, u) == 0)
2135                 use_uuid = u;
2136         else if (hwaddr_aton(uuid, addr) == 0)
2137                 use_addr = addr;
2138         else
2139                 return NULL;
2140
2141         /*
2142          * Handover Select carrier record for WPS uses the same format as
2143          * configuration token.
2144          */
2145         ret = wps_er_nfc_config_token(wpa_s->wps_er, use_uuid, use_addr);
2146         if (ndef && ret) {
2147                 struct wpabuf *tmp;
2148                 tmp = ndef_build_wifi(ret);
2149                 wpabuf_free(ret);
2150                 if (tmp == NULL)
2151                         return NULL;
2152                 ret = tmp;
2153         }
2154
2155         return ret;
2156 #else /* CONFIG_WPS_ER */
2157         return NULL;
2158 #endif /* CONFIG_WPS_ER */
2159 }
2160 #endif /* CONFIG_WPS_NFC */
2161
2162
2163 struct wpabuf * wpas_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
2164                                           int ndef, int cr, const char *uuid)
2165 {
2166         struct wpabuf *ret;
2167         if (!cr)
2168                 return NULL;
2169         ret = wpas_ap_wps_nfc_handover_sel(wpa_s, ndef);
2170         if (ret)
2171                 return ret;
2172         return wpas_wps_er_nfc_handover_sel(wpa_s, ndef, uuid);
2173 }
2174
2175
2176 int wpas_wps_nfc_rx_handover_req(struct wpa_supplicant *wpa_s,
2177                                  const struct wpabuf *data)
2178 {
2179         /* TODO */
2180         return -1;
2181 }
2182
2183
2184 int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s,
2185                                  const struct wpabuf *data)
2186 {
2187         struct wpabuf *wps;
2188         int ret;
2189
2190         wps = ndef_parse_wifi(data);
2191         if (wps == NULL)
2192                 return -1;
2193         wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc "
2194                    "payload from NFC connection handover");
2195         wpa_hexdump_buf_key(MSG_DEBUG, "WPS: NFC payload", wps);
2196         ret = wpas_wps_nfc_tag_process(wpa_s, wps);
2197         wpabuf_free(wps);
2198
2199         return ret;
2200 }
2201
2202
2203 int wpas_wps_nfc_report_handover(struct wpa_supplicant *wpa_s,
2204                                  const struct wpabuf *req,
2205                                  const struct wpabuf *sel)
2206 {
2207         wpa_printf(MSG_DEBUG, "NFC: WPS connection handover reported");
2208         wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in request", req);
2209         wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in select", sel);
2210         return wpas_wps_nfc_rx_handover_sel(wpa_s, sel);
2211 }
2212
2213 #endif /* CONFIG_WPS_NFC */
2214
2215
2216 extern int wpa_debug_level;
2217
2218 static void wpas_wps_dump_ap_info(struct wpa_supplicant *wpa_s)
2219 {
2220         size_t i;
2221         struct os_time now;
2222
2223         if (wpa_debug_level > MSG_DEBUG)
2224                 return;
2225
2226         if (wpa_s->wps_ap == NULL)
2227                 return;
2228
2229         os_get_time(&now);
2230
2231         for (i = 0; i < wpa_s->num_wps_ap; i++) {
2232                 struct wps_ap_info *ap = &wpa_s->wps_ap[i];
2233                 struct wpa_blacklist *e = wpa_blacklist_get(wpa_s, ap->bssid);
2234
2235                 wpa_printf(MSG_DEBUG, "WPS: AP[%d] " MACSTR " type=%d "
2236                            "tries=%d last_attempt=%d sec ago blacklist=%d",
2237                            (int) i, MAC2STR(ap->bssid), ap->type, ap->tries,
2238                            ap->last_attempt.sec > 0 ?
2239                            (int) now.sec - (int) ap->last_attempt.sec : -1,
2240                            e ? e->count : 0);
2241         }
2242 }
2243
2244
2245 static struct wps_ap_info * wpas_wps_get_ap_info(struct wpa_supplicant *wpa_s,
2246                                                  const u8 *bssid)
2247 {
2248         size_t i;
2249
2250         if (wpa_s->wps_ap == NULL)
2251                 return NULL;
2252
2253         for (i = 0; i < wpa_s->num_wps_ap; i++) {
2254                 struct wps_ap_info *ap = &wpa_s->wps_ap[i];
2255                 if (os_memcmp(ap->bssid, bssid, ETH_ALEN) == 0)
2256                         return ap;
2257         }
2258
2259         return NULL;
2260 }
2261
2262
2263 static void wpas_wps_update_ap_info_bss(struct wpa_supplicant *wpa_s,
2264                                         struct wpa_scan_res *res)
2265 {
2266         struct wpabuf *wps;
2267         enum wps_ap_info_type type;
2268         struct wps_ap_info *ap;
2269         int r;
2270
2271         if (wpa_scan_get_vendor_ie(res, WPS_IE_VENDOR_TYPE) == NULL)
2272                 return;
2273
2274         wps = wpa_scan_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE);
2275         if (wps == NULL)
2276                 return;
2277
2278         r = wps_is_addr_authorized(wps, wpa_s->own_addr, 1);
2279         if (r == 2)
2280                 type = WPS_AP_SEL_REG_OUR;
2281         else if (r == 1)
2282                 type = WPS_AP_SEL_REG;
2283         else
2284                 type = WPS_AP_NOT_SEL_REG;
2285
2286         wpabuf_free(wps);
2287
2288         ap = wpas_wps_get_ap_info(wpa_s, res->bssid);
2289         if (ap) {
2290                 if (ap->type != type) {
2291                         wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR
2292                                    " changed type %d -> %d",
2293                                    MAC2STR(res->bssid), ap->type, type);
2294                         ap->type = type;
2295                         if (type != WPS_AP_NOT_SEL_REG)
2296                                 wpa_blacklist_del(wpa_s, ap->bssid);
2297                 }
2298                 return;
2299         }
2300
2301         ap = os_realloc_array(wpa_s->wps_ap, wpa_s->num_wps_ap + 1,
2302                               sizeof(struct wps_ap_info));
2303         if (ap == NULL)
2304                 return;
2305
2306         wpa_s->wps_ap = ap;
2307         ap = &wpa_s->wps_ap[wpa_s->num_wps_ap];
2308         wpa_s->num_wps_ap++;
2309
2310         os_memset(ap, 0, sizeof(*ap));
2311         os_memcpy(ap->bssid, res->bssid, ETH_ALEN);
2312         ap->type = type;
2313         wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR " type %d added",
2314                    MAC2STR(ap->bssid), ap->type);
2315 }
2316
2317
2318 void wpas_wps_update_ap_info(struct wpa_supplicant *wpa_s,
2319                              struct wpa_scan_results *scan_res)
2320 {
2321         size_t i;
2322
2323         for (i = 0; i < scan_res->num; i++)
2324                 wpas_wps_update_ap_info_bss(wpa_s, scan_res->res[i]);
2325
2326         wpas_wps_dump_ap_info(wpa_s);
2327 }
2328
2329
2330 void wpas_wps_notify_assoc(struct wpa_supplicant *wpa_s, const u8 *bssid)
2331 {
2332         struct wps_ap_info *ap;
2333         if (!wpa_s->wps_ap_iter)
2334                 return;
2335         ap = wpas_wps_get_ap_info(wpa_s, bssid);
2336         if (ap == NULL)
2337                 return;
2338         ap->tries++;
2339         os_get_time(&ap->last_attempt);
2340 }