Fix build with CONFIG_WPS_OOB
[libeap.git] / wpa_supplicant / wps_supplicant.c
index b3f4882..0033665 100644 (file)
@@ -1,6 +1,6 @@
 /*
  * wpa_supplicant / WPS integration
- * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2008-2010, Jouni Malinen <j@w1.fi>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
 #include "includes.h"
 
 #include "common.h"
-#include "ieee802_11_defs.h"
-#include "wpa_common.h"
-#include "config.h"
-#include "eap_peer/eap.h"
-#include "wpa_supplicant_i.h"
 #include "eloop.h"
-#include "wpa_ctrl.h"
+#include "uuid.h"
+#include "crypto/dh_group5.h"
+#include "common/ieee802_11_defs.h"
+#include "common/ieee802_11_common.h"
+#include "common/wpa_common.h"
+#include "common/wpa_ctrl.h"
 #include "eap_common/eap_wsc_common.h"
-#include "wps/wps.h"
-#include "wps/wps_defs.h"
+#include "eap_peer/eap.h"
+#include "rsn_supp/wpa.h"
+#include "config.h"
+#include "wpa_supplicant_i.h"
+#include "driver_i.h"
+#include "notify.h"
+#include "blacklist.h"
+#include "bss.h"
+#include "scan.h"
+#include "ap.h"
+#include "p2p/p2p.h"
+#include "p2p_supplicant.h"
 #include "wps_supplicant.h"
 
 
+#ifndef WPS_PIN_SCAN_IGNORE_SEL_REG
+#define WPS_PIN_SCAN_IGNORE_SEL_REG 3
+#endif /* WPS_PIN_SCAN_IGNORE_SEL_REG */
+
 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx);
+static void wpas_clear_wps(struct wpa_supplicant *wpa_s);
 
 
 int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s)
 {
+       if (!wpa_s->wps_success &&
+           wpa_s->current_ssid &&
+           eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
+               const u8 *bssid = wpa_s->bssid;
+               if (is_zero_ether_addr(bssid))
+                       bssid = wpa_s->pending_bssid;
+
+               wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR
+                          " did not succeed - continue trying to find "
+                          "suitable AP", MAC2STR(bssid));
+               wpa_blacklist_add(wpa_s, bssid);
+
+               wpa_supplicant_deauthenticate(wpa_s,
+                                             WLAN_REASON_DEAUTH_LEAVING);
+               wpa_s->reassociate = 1;
+               wpa_supplicant_req_scan(wpa_s,
+                                       wpa_s->blacklist_cleared ? 5 : 0, 0);
+               wpa_s->blacklist_cleared = 0;
+               return 1;
+       }
+
        eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
 
        if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid &&
@@ -41,22 +77,161 @@ int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s)
                           "try to associate with the received credential");
                wpa_supplicant_deauthenticate(wpa_s,
                                              WLAN_REASON_DEAUTH_LEAVING);
+               wpa_s->after_wps = 5;
+               wpa_s->wps_freq = wpa_s->assoc_freq;
                wpa_s->reassociate = 1;
                wpa_supplicant_req_scan(wpa_s, 0, 0);
                return 1;
        }
 
+       if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) {
+               wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting "
+                          "for external credential processing");
+               wpas_clear_wps(wpa_s);
+               wpa_supplicant_deauthenticate(wpa_s,
+                                             WLAN_REASON_DEAUTH_LEAVING);
+               return 1;
+       }
+
        return 0;
 }
 
 
+static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s,
+                                        struct wpa_ssid *ssid,
+                                        const struct wps_credential *cred)
+{
+       struct wpa_driver_capa capa;
+       struct wpa_bss *bss;
+       const u8 *ie;
+       struct wpa_ie_data adv;
+       int wpa2 = 0, ccmp = 0;
+
+       /*
+        * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in
+        * case they are configured for mixed mode operation (WPA+WPA2 and
+        * TKIP+CCMP). Try to use scan results to figure out whether the AP
+        * actually supports stronger security and select that if the client
+        * has support for it, too.
+        */
+
+       if (wpa_drv_get_capa(wpa_s, &capa))
+               return; /* Unknown what driver supports */
+
+       bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len);
+       if (bss == NULL) {
+               wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS "
+                          "table - use credential as-is");
+               return;
+       }
+
+       wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table");
+
+       ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
+       if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) {
+               wpa2 = 1;
+               if (adv.pairwise_cipher & WPA_CIPHER_CCMP)
+                       ccmp = 1;
+       } else {
+               ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
+               if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 &&
+                   adv.pairwise_cipher & WPA_CIPHER_CCMP)
+                       ccmp = 1;
+       }
+
+       if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) &&
+           (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) {
+               /*
+                * TODO: This could be the initial AP configuration and the
+                * Beacon contents could change shortly. Should request a new
+                * scan and delay addition of the network until the updated
+                * scan results are available.
+                */
+               wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA "
+                          "support - use credential as-is");
+               return;
+       }
+
+       if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
+           (ssid->pairwise_cipher & WPA_CIPHER_TKIP) &&
+           (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
+               wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential "
+                          "based on scan results");
+               if (wpa_s->conf->ap_scan == 1)
+                       ssid->pairwise_cipher |= WPA_CIPHER_CCMP;
+               else
+                       ssid->pairwise_cipher = WPA_CIPHER_CCMP;
+       }
+
+       if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) &&
+           (ssid->proto & WPA_PROTO_WPA) &&
+           (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) {
+               wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential "
+                          "based on scan results");
+               if (wpa_s->conf->ap_scan == 1)
+                       ssid->proto |= WPA_PROTO_RSN;
+               else
+                       ssid->proto = WPA_PROTO_RSN;
+       }
+}
+
+
 static int wpa_supplicant_wps_cred(void *ctx,
                                   const struct wps_credential *cred)
 {
        struct wpa_supplicant *wpa_s = ctx;
        struct wpa_ssid *ssid = wpa_s->current_ssid;
+       u8 key_idx = 0;
+       u16 auth_type;
+
+       if ((wpa_s->conf->wps_cred_processing == 1 ||
+            wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) {
+               size_t blen = cred->cred_attr_len * 2 + 1;
+               char *buf = os_malloc(blen);
+               if (buf) {
+                       wpa_snprintf_hex(buf, blen,
+                                        cred->cred_attr, cred->cred_attr_len);
+                       wpa_msg(wpa_s, MSG_INFO, "%s%s",
+                               WPS_EVENT_CRED_RECEIVED, buf);
+                       os_free(buf);
+               }
 
-       wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED);
+               wpas_notify_wps_credential(wpa_s, cred);
+       } else
+               wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED);
+
+       wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
+                       cred->cred_attr, cred->cred_attr_len);
+
+       if (wpa_s->conf->wps_cred_processing == 1)
+               return 0;
+
+       wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
+       wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
+                  cred->auth_type);
+       wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
+       wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
+       wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
+                       cred->key, cred->key_len);
+       wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
+                  MAC2STR(cred->mac_addr));
+
+       auth_type = cred->auth_type;
+       if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
+               wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode "
+                          "auth_type into WPA2PSK");
+               auth_type = WPS_AUTH_WPA2PSK;
+       }
+
+       if (auth_type != WPS_AUTH_OPEN &&
+           auth_type != WPS_AUTH_SHARED &&
+           auth_type != WPS_AUTH_WPAPSK &&
+           auth_type != WPS_AUTH_WPA2PSK) {
+               wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
+                          "unsupported authentication type 0x%x",
+                          auth_type);
+               return 0;
+       }
 
        if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
                wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based "
@@ -68,12 +243,15 @@ static int wpa_supplicant_wps_cred(void *ctx,
                ssid->eap.phase1 = NULL;
                os_free(ssid->eap.eap_methods);
                ssid->eap.eap_methods = NULL;
+               if (!ssid->p2p_group)
+                       ssid->temporary = 0;
        } else {
                wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the "
                           "received credential");
                ssid = wpa_config_add_network(wpa_s->conf);
                if (ssid == NULL)
                        return -1;
+               wpas_notify_network_added(wpa_s, ssid);
        }
 
        wpa_config_set_network_defaults(ssid);
@@ -87,30 +265,48 @@ static int wpa_supplicant_wps_cred(void *ctx,
 
        switch (cred->encr_type) {
        case WPS_ENCR_NONE:
-               ssid->pairwise_cipher = ssid->group_cipher = WPA_CIPHER_NONE;
                break;
        case WPS_ENCR_WEP:
-               ssid->pairwise_cipher = ssid->group_cipher =
-                       WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104;
-               if (cred->key_len > 0 && cred->key_len <= MAX_WEP_KEY_LEN &&
-                   cred->key_idx < NUM_WEP_KEYS) {
-                       os_memcpy(ssid->wep_key[cred->key_idx], cred->key,
+               if (cred->key_len <= 0)
+                       break;
+               if (cred->key_len != 5 && cred->key_len != 13 &&
+                   cred->key_len != 10 && cred->key_len != 26) {
+                       wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key length "
+                                  "%lu", (unsigned long) cred->key_len);
+                       return -1;
+               }
+               if (cred->key_idx > NUM_WEP_KEYS) {
+                       wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key index %d",
+                                  cred->key_idx);
+                       return -1;
+               }
+               if (cred->key_idx)
+                       key_idx = cred->key_idx - 1;
+               if (cred->key_len == 10 || cred->key_len == 26) {
+                       if (hexstr2bin((char *) cred->key,
+                                      ssid->wep_key[key_idx],
+                                      cred->key_len / 2) < 0) {
+                               wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key "
+                                          "%d", key_idx);
+                               return -1;
+                       }
+                       ssid->wep_key_len[key_idx] = cred->key_len / 2;
+               } else {
+                       os_memcpy(ssid->wep_key[key_idx], cred->key,
                                  cred->key_len);
-                       ssid->wep_key_len[cred->key_idx] = cred->key_len;
-                       ssid->wep_tx_keyidx = cred->key_idx;
+                       ssid->wep_key_len[key_idx] = cred->key_len;
                }
+               ssid->wep_tx_keyidx = key_idx;
                break;
        case WPS_ENCR_TKIP:
                ssid->pairwise_cipher = WPA_CIPHER_TKIP;
-               ssid->group_cipher = WPA_CIPHER_TKIP;
                break;
        case WPS_ENCR_AES:
                ssid->pairwise_cipher = WPA_CIPHER_CCMP;
-               ssid->group_cipher = WPA_CIPHER_CCMP | WPA_CIPHER_TKIP;
                break;
        }
 
-       switch (cred->auth_type) {
+       switch (auth_type) {
        case WPS_AUTH_OPEN:
                ssid->auth_alg = WPA_AUTH_ALG_OPEN;
                ssid->key_mgmt = WPA_KEY_MGMT_NONE;
@@ -168,6 +364,8 @@ static int wpa_supplicant_wps_cred(void *ctx,
                }
        }
 
+       wpas_wps_security_workaround(wpa_s, ssid, cred);
+
 #ifndef CONFIG_NO_CONFIG_WRITE
        if (wpa_s->conf->update_config &&
            wpa_config_write(wpa_s->confname, wpa_s->conf)) {
@@ -180,7 +378,175 @@ static int wpa_supplicant_wps_cred(void *ctx,
 }
 
 
-u8 wpas_wps_get_req_type(struct wpa_ssid *ssid)
+static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s,
+                                        struct wps_event_m2d *m2d)
+{
+       wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D
+               "dev_password_id=%d config_error=%d",
+               m2d->dev_password_id, m2d->config_error);
+       wpas_notify_wps_event_m2d(wpa_s, m2d);
+}
+
+
+static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
+                                         struct wps_event_fail *fail)
+{
+       wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL "msg=%d", fail->msg);
+       wpas_clear_wps(wpa_s);
+       wpas_notify_wps_event_fail(wpa_s, fail);
+}
+
+
+static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s)
+{
+       wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS);
+       wpa_s->wps_success = 1;
+       wpas_notify_wps_event_success(wpa_s);
+#ifdef CONFIG_P2P
+       wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0);
+#endif /* CONFIG_P2P */
+}
+
+
+static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s,
+                                              struct wps_event_er_ap *ap)
+{
+       char uuid_str[100];
+       char dev_type[WPS_DEV_TYPE_BUFSIZE];
+
+       uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
+       if (ap->pri_dev_type)
+               wps_dev_type_bin2str(ap->pri_dev_type, dev_type,
+                                    sizeof(dev_type));
+       else
+               dev_type[0] = '\0';
+
+       wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR
+               " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|",
+               uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state,
+               ap->friendly_name ? ap->friendly_name : "",
+               ap->manufacturer ? ap->manufacturer : "",
+               ap->model_description ? ap->model_description : "",
+               ap->model_name ? ap->model_name : "",
+               ap->manufacturer_url ? ap->manufacturer_url : "",
+               ap->model_url ? ap->model_url : "");
+}
+
+
+static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s,
+                                                 struct wps_event_er_ap *ap)
+{
+       char uuid_str[100];
+       uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
+       wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str);
+}
+
+
+static void wpa_supplicant_wps_event_er_enrollee_add(
+       struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
+{
+       char uuid_str[100];
+       char dev_type[WPS_DEV_TYPE_BUFSIZE];
+
+       uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
+       if (enrollee->pri_dev_type)
+               wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type,
+                                    sizeof(dev_type));
+       else
+               dev_type[0] = '\0';
+
+       wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR
+               " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s "
+               "|%s|%s|%s|%s|%s|",
+               uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received,
+               enrollee->config_methods, enrollee->dev_passwd_id, dev_type,
+               enrollee->dev_name ? enrollee->dev_name : "",
+               enrollee->manufacturer ? enrollee->manufacturer : "",
+               enrollee->model_name ? enrollee->model_name : "",
+               enrollee->model_number ? enrollee->model_number : "",
+               enrollee->serial_number ? enrollee->serial_number : "");
+}
+
+
+static void wpa_supplicant_wps_event_er_enrollee_remove(
+       struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
+{
+       char uuid_str[100];
+       uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
+       wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR,
+               uuid_str, MAC2STR(enrollee->mac_addr));
+}
+
+
+static void wpa_supplicant_wps_event_er_ap_settings(
+       struct wpa_supplicant *wpa_s,
+       struct wps_event_er_ap_settings *ap_settings)
+{
+       char uuid_str[100];
+       char key_str[65];
+       const struct wps_credential *cred = ap_settings->cred;
+
+       key_str[0] = '\0';
+       if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
+               if (cred->key_len >= 8 && cred->key_len <= 64) {
+                       os_memcpy(key_str, cred->key, cred->key_len);
+                       key_str[cred->key_len] = '\0';
+               }
+       }
+
+       uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str));
+       /* Use wpa_msg_ctrl to avoid showing the key in debug log */
+       wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS
+                    "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x "
+                    "key=%s",
+                    uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len),
+                    cred->auth_type, cred->encr_type, key_str);
+}
+
+
+static void wpa_supplicant_wps_event(void *ctx, enum wps_event event,
+                                    union wps_event_data *data)
+{
+       struct wpa_supplicant *wpa_s = ctx;
+       switch (event) {
+       case WPS_EV_M2D:
+               wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d);
+               break;
+       case WPS_EV_FAIL:
+               wpa_supplicant_wps_event_fail(wpa_s, &data->fail);
+               break;
+       case WPS_EV_SUCCESS:
+               wpa_supplicant_wps_event_success(wpa_s);
+               break;
+       case WPS_EV_PWD_AUTH_FAIL:
+               break;
+       case WPS_EV_PBC_OVERLAP:
+               break;
+       case WPS_EV_PBC_TIMEOUT:
+               break;
+       case WPS_EV_ER_AP_ADD:
+               wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap);
+               break;
+       case WPS_EV_ER_AP_REMOVE:
+               wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap);
+               break;
+       case WPS_EV_ER_ENROLLEE_ADD:
+               wpa_supplicant_wps_event_er_enrollee_add(wpa_s,
+                                                        &data->enrollee);
+               break;
+       case WPS_EV_ER_ENROLLEE_REMOVE:
+               wpa_supplicant_wps_event_er_enrollee_remove(wpa_s,
+                                                           &data->enrollee);
+               break;
+       case WPS_EV_ER_AP_SETTINGS:
+               wpa_supplicant_wps_event_er_ap_settings(wpa_s,
+                                                       &data->ap_settings);
+               break;
+       }
+}
+
+
+enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid)
 {
        if (eap_is_wps_pbc_enrollee(&ssid->eap) ||
            eap_is_wps_pin_enrollee(&ssid->eap))
@@ -193,20 +559,28 @@ u8 wpas_wps_get_req_type(struct wpa_ssid *ssid)
 static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
 {
        int id;
-       struct wpa_ssid *ssid;
+       struct wpa_ssid *ssid, *remove_ssid = NULL;
 
        eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
 
        /* Remove any existing WPS network from configuration */
        ssid = wpa_s->conf->ssid;
        while (ssid) {
-               if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
+               if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
+                       if (ssid == wpa_s->current_ssid) {
+                               wpa_s->current_ssid = NULL;
+                               if (ssid != NULL)
+                                       wpas_notify_network_changed(wpa_s);
+                       }
                        id = ssid->id;
-               else
+                       remove_ssid = ssid;
+               } else
                        id = -1;
                ssid = ssid->next;
-               if (id >= 0)
+               if (id >= 0) {
+                       wpas_notify_network_removed(wpa_s, remove_ssid);
                        wpa_config_remove_network(wpa_s->conf, id);
+               }
        }
 }
 
@@ -214,7 +588,8 @@ static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
 {
        struct wpa_supplicant *wpa_s = eloop_ctx;
-       wpa_printf(MSG_DEBUG, "WPS: Requested operation timed out");
+       wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
+               "out");
        wpas_clear_wps(wpa_s);
 }
 
@@ -227,45 +602,58 @@ static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
        ssid = wpa_config_add_network(wpa_s->conf);
        if (ssid == NULL)
                return NULL;
+       wpas_notify_network_added(wpa_s, ssid);
        wpa_config_set_network_defaults(ssid);
+       ssid->temporary = 1;
        if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 ||
            wpa_config_set(ssid, "eap", "WSC", 0) < 0 ||
            wpa_config_set(ssid, "identity", registrar ?
                           "\"" WSC_ID_REGISTRAR "\"" :
                           "\"" WSC_ID_ENROLLEE "\"", 0) < 0) {
+               wpas_notify_network_removed(wpa_s, ssid);
                wpa_config_remove_network(wpa_s->conf, ssid->id);
                return NULL;
        }
 
        if (bssid) {
-               size_t i;
-               struct wpa_scan_res *res;
+#ifndef CONFIG_P2P
+               struct wpa_bss *bss;
+               int count = 0;
+#endif /* CONFIG_P2P */
 
                os_memcpy(ssid->bssid, bssid, ETH_ALEN);
-
-               /* Try to get SSID from scan results */
-               if (wpa_s->scan_res == NULL &&
-                   wpa_supplicant_get_scan_results(wpa_s) < 0)
-                       return ssid; /* Could not find any scan results */
-
-               for (i = 0; i < wpa_s->scan_res->num; i++) {
-                       const u8 *ie;
-
-                       res = wpa_s->scan_res->res[i];
-                       if (os_memcmp(bssid, res->bssid, ETH_ALEN) != 0)
+               ssid->bssid_set = 1;
+
+               /*
+                * Note: With P2P, the SSID may change at the time the WPS
+                * provisioning is started, so better not filter the AP based
+                * on the current SSID in the scan results.
+                */
+#ifndef CONFIG_P2P
+               dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
+                       if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0)
                                continue;
 
-                       ie = wpa_scan_get_ie(res, WLAN_EID_SSID);
-                       if (ie == NULL)
-                               break;
                        os_free(ssid->ssid);
-                       ssid->ssid = os_malloc(ie[1]);
+                       ssid->ssid = os_malloc(bss->ssid_len);
                        if (ssid->ssid == NULL)
                                break;
-                       os_memcpy(ssid->ssid, ie + 2, ie[1]);
-                       ssid->ssid_len = ie[1];
-                       break;
+                       os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
+                       ssid->ssid_len = bss->ssid_len;
+                       wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from "
+                                         "scan results",
+                                         ssid->ssid, ssid->ssid_len);
+                       count++;
                }
+
+               if (count > 1) {
+                       wpa_printf(MSG_DEBUG, "WPS: More than one SSID found "
+                                  "for the AP; use wildcard");
+                       os_free(ssid->ssid);
+                       ssid->ssid = NULL;
+                       ssid->ssid_len = 0;
+               }
+#endif /* CONFIG_P2P */
        }
 
        return ssid;
@@ -280,23 +668,46 @@ static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
        /* Mark all other networks disabled and trigger reassociation */
        ssid = wpa_s->conf->ssid;
        while (ssid) {
+               int was_disabled = ssid->disabled;
                ssid->disabled = ssid != selected;
+               if (was_disabled != ssid->disabled)
+                       wpas_notify_network_enabled_changed(wpa_s, ssid);
                ssid = ssid->next;
        }
        wpa_s->disconnected = 0;
        wpa_s->reassociate = 1;
+       wpa_s->scan_runs = 0;
+       wpa_s->wps_success = 0;
+       wpa_s->blacklist_cleared = 0;
        wpa_supplicant_req_scan(wpa_s, 0, 0);
 }
 
 
-int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid)
+int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
+                      int p2p_group)
 {
        struct wpa_ssid *ssid;
        wpas_clear_wps(wpa_s);
        ssid = wpas_wps_add_network(wpa_s, 0, bssid);
        if (ssid == NULL)
                return -1;
+       ssid->temporary = 1;
+       ssid->p2p_group = p2p_group;
+#ifdef CONFIG_P2P
+       if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
+               ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
+               if (ssid->ssid) {
+                       ssid->ssid_len = wpa_s->go_params->ssid_len;
+                       os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
+                                 ssid->ssid_len);
+                       wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
+                                         "SSID", ssid->ssid, ssid->ssid_len);
+               }
+       }
+#endif /* CONFIG_P2P */
        wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0);
+       if (wpa_s->wps_fragment_size)
+               ssid->eap.fragment_size = wpa_s->wps_fragment_size;
        eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
                               wpa_s, NULL);
        wpas_wps_reassoc(wpa_s, ssid);
@@ -305,23 +716,41 @@ int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid)
 
 
 int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
-                      const char *pin)
+                      const char *pin, int p2p_group, u16 dev_pw_id)
 {
        struct wpa_ssid *ssid;
-       char val[30];
+       char val[128];
        unsigned int rpin = 0;
 
        wpas_clear_wps(wpa_s);
        ssid = wpas_wps_add_network(wpa_s, 0, bssid);
        if (ssid == NULL)
                return -1;
+       ssid->temporary = 1;
+       ssid->p2p_group = p2p_group;
+#ifdef CONFIG_P2P
+       if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
+               ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
+               if (ssid->ssid) {
+                       ssid->ssid_len = wpa_s->go_params->ssid_len;
+                       os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
+                                 ssid->ssid_len);
+                       wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
+                                         "SSID", ssid->ssid, ssid->ssid_len);
+               }
+       }
+#endif /* CONFIG_P2P */
        if (pin)
-               os_snprintf(val, sizeof(val), "\"pin=%s\"", pin);
+               os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u\"",
+                           pin, dev_pw_id);
        else {
                rpin = wps_generate_pin();
-               os_snprintf(val, sizeof(val), "\"pin=%08d\"", rpin);
+               os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u\"",
+                           rpin, dev_pw_id);
        }
        wpa_config_set(ssid, "phase1", val, 0);
+       if (wpa_s->wps_fragment_size)
+               ssid->eap.fragment_size = wpa_s->wps_fragment_size;
        eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
                               wpa_s, NULL);
        wpas_wps_reassoc(wpa_s, ssid);
@@ -329,11 +758,90 @@ int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 }
 
 
+/* Cancel the wps pbc/pin requests */
+int wpas_wps_cancel(struct wpa_supplicant *wpa_s)
+{
+#ifdef CONFIG_AP
+       if (wpa_s->ap_iface) {
+               wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode");
+               return wpa_supplicant_ap_wps_cancel(wpa_s);
+       }
+#endif /* CONFIG_AP */
+
+       if (wpa_s->wpa_state == WPA_SCANNING) {
+               wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan");
+               wpa_supplicant_cancel_scan(wpa_s);
+               wpas_clear_wps(wpa_s);
+       } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
+               wpa_printf(MSG_DEBUG, "WPS: Cancel operation - "
+                          "deauthenticate");
+               wpa_supplicant_deauthenticate(wpa_s,
+                                             WLAN_REASON_DEAUTH_LEAVING);
+               wpas_clear_wps(wpa_s);
+       }
+
+       return 0;
+}
+
+
+#ifdef CONFIG_WPS_OOB
+int wpas_wps_start_oob(struct wpa_supplicant *wpa_s, char *device_type,
+                      char *path, char *method, char *name)
+{
+       struct wps_context *wps = wpa_s->wps;
+       struct oob_device_data *oob_dev;
+
+       oob_dev = wps_get_oob_device(device_type);
+       if (oob_dev == NULL)
+               return -1;
+       oob_dev->device_path = path;
+       oob_dev->device_name = name;
+       wps->oob_conf.oob_method = wps_get_oob_method(method);
+
+       if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E) {
+               /*
+                * Use pre-configured DH keys in order to be able to write the
+                * key hash into the OOB file.
+                */
+               wpabuf_free(wps->dh_pubkey);
+               wpabuf_free(wps->dh_privkey);
+               wps->dh_privkey = NULL;
+               wps->dh_pubkey = NULL;
+               dh5_free(wps->dh_ctx);
+               wps->dh_ctx = dh5_init(&wps->dh_privkey, &wps->dh_pubkey);
+               wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
+               if (wps->dh_ctx == NULL || wps->dh_pubkey == NULL) {
+                       wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
+                                  "Diffie-Hellman handshake");
+                       return -1;
+               }
+       }
+
+       if (wps->oob_conf.oob_method == OOB_METHOD_CRED)
+               wpas_clear_wps(wpa_s);
+
+       if (wps_process_oob(wps, oob_dev, 0) < 0)
+               return -1;
+
+       if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
+            wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
+           wpas_wps_start_pin(wpa_s, NULL,
+                              wpabuf_head(wps->oob_conf.dev_password), 0,
+                              DEV_PW_DEFAULT) < 0)
+                       return -1;
+
+       return 0;
+}
+#endif /* CONFIG_WPS_OOB */
+
+
 int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
-                      const char *pin)
+                      const char *pin, struct wps_new_ap_settings *settings)
 {
        struct wpa_ssid *ssid;
-       char val[30];
+       char val[200];
+       char *pos, *end;
+       int res;
 
        if (!pin)
                return -1;
@@ -341,8 +849,28 @@ int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
        ssid = wpas_wps_add_network(wpa_s, 1, bssid);
        if (ssid == NULL)
                return -1;
-       os_snprintf(val, sizeof(val), "\"pin=%s\"", pin);
+       ssid->temporary = 1;
+       pos = val;
+       end = pos + sizeof(val);
+       res = os_snprintf(pos, end - pos, "\"pin=%s", pin);
+       if (res < 0 || res >= end - pos)
+               return -1;
+       pos += res;
+       if (settings) {
+               res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s "
+                                 "new_encr=%s new_key=%s",
+                                 settings->ssid_hex, settings->auth,
+                                 settings->encr, settings->key_hex);
+               if (res < 0 || res >= end - pos)
+                       return -1;
+               pos += res;
+       }
+       res = os_snprintf(pos, end - pos, "\"");
+       if (res < 0 || res >= end - pos)
+               return -1;
        wpa_config_set(ssid, "phase1", val, 0);
+       if (wpa_s->wps_fragment_size)
+               ssid->eap.fragment_size = wpa_s->wps_fragment_size;
        eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
                               wpa_s, NULL);
        wpas_wps_reassoc(wpa_s, ssid);
@@ -350,15 +878,68 @@ int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
 }
 
 
+static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
+                              size_t psk_len)
+{
+       wpa_printf(MSG_DEBUG, "WPS: Received new WPA/WPA2-PSK from WPS for "
+                  "STA " MACSTR, MAC2STR(mac_addr));
+       wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
+
+       /* TODO */
+
+       return 0;
+}
+
+
+static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
+                                  const struct wps_device_data *dev)
+{
+       char uuid[40], txt[400];
+       int len;
+       char devtype[WPS_DEV_TYPE_BUFSIZE];
+       if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
+               return;
+       wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid);
+       len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR
+                         " [%s|%s|%s|%s|%s|%s]",
+                         uuid, MAC2STR(dev->mac_addr), dev->device_name,
+                         dev->manufacturer, dev->model_name,
+                         dev->model_number, dev->serial_number,
+                         wps_dev_type_bin2str(dev->pri_dev_type, devtype,
+                                              sizeof(devtype)));
+       if (len > 0 && len < (int) sizeof(txt))
+               wpa_printf(MSG_INFO, "%s", txt);
+}
+
+
+static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id,
+                                   u16 sel_reg_config_methods)
+{
+#ifdef CONFIG_WPS_ER
+       struct wpa_supplicant *wpa_s = ctx;
+
+       if (wpa_s->wps_er == NULL)
+               return;
+       wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d "
+                  "dev_password_id=%u sel_reg_config_methods=0x%x",
+                  sel_reg, dev_passwd_id, sel_reg_config_methods);
+       wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id,
+                          sel_reg_config_methods);
+#endif /* CONFIG_WPS_ER */
+}
+
+
 int wpas_wps_init(struct wpa_supplicant *wpa_s)
 {
        struct wps_context *wps;
+       struct wps_registrar_config rcfg;
 
        wps = os_zalloc(sizeof(*wps));
        if (wps == NULL)
                return -1;
 
        wps->cred_cb = wpa_supplicant_wps_cred;
+       wps->event_cb = wpa_supplicant_wps_event;
        wps->cb_ctx = wpa_s;
 
        wps->dev.device_name = wpa_s->conf->device_name;
@@ -366,37 +947,47 @@ int wpas_wps_init(struct wpa_supplicant *wpa_s)
        wps->dev.model_name = wpa_s->conf->model_name;
        wps->dev.model_number = wpa_s->conf->model_number;
        wps->dev.serial_number = wpa_s->conf->serial_number;
-       if (wpa_s->conf->device_type) {
-               char *pos;
-               u8 oui[4];
-               /* <categ>-<OUI>-<subcateg> */
-               wps->dev.categ = atoi(wpa_s->conf->device_type);
-               pos = os_strchr(wpa_s->conf->device_type, '-');
-               if (pos == NULL) {
-                       wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
-                       os_free(wps);
-                       return -1;
-               }
-               pos++;
-               if (hexstr2bin(pos, oui, 4)) {
-                       wpa_printf(MSG_ERROR, "WPS: Invalid device_type OUI");
-                       os_free(wps);
-                       return -1;
-               }
-               wps->dev.oui = WPA_GET_BE32(oui);
-               pos = os_strchr(pos, '-');
-               if (pos == NULL) {
-                       wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
-                       os_free(wps);
-                       return -1;
-               }
-               pos++;
-               wps->dev.sub_categ = atoi(pos);
+       wps->config_methods =
+               wps_config_methods_str2bin(wpa_s->conf->config_methods);
+       if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
+           (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
+               wpa_printf(MSG_ERROR, "WPS: Both Label and Display config "
+                          "methods are not allowed at the same time");
+               os_free(wps);
+               return -1;
+       }
+       if (wpa_s->conf->device_type &&
+           wps_dev_type_str2bin(wpa_s->conf->device_type,
+                                wps->dev.pri_dev_type) < 0) {
+               wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
+               os_free(wps);
+               return -1;
        }
        wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
        wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ; /* TODO: config */
        os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
-       os_memcpy(wps->uuid, wpa_s->conf->uuid, 16);
+       if (is_nil_uuid(wpa_s->conf->uuid)) {
+               uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
+               wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC address",
+                           wps->uuid, WPS_UUID_LEN);
+       } else
+               os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
+
+       wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
+       wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
+
+       os_memset(&rcfg, 0, sizeof(rcfg));
+       rcfg.new_psk_cb = wpas_wps_new_psk_cb;
+       rcfg.pin_needed_cb = wpas_wps_pin_needed_cb;
+       rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb;
+       rcfg.cb_ctx = wpa_s;
+
+       wps->registrar = wps_registrar_init(wps, &rcfg);
+       if (wps->registrar == NULL) {
+               wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar");
+               os_free(wps);
+               return -1;
+       }
 
        wpa_s->wps = wps;
 
@@ -411,13 +1002,24 @@ void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
        if (wpa_s->wps == NULL)
                return;
 
+#ifdef CONFIG_WPS_ER
+       wps_er_deinit(wpa_s->wps_er, NULL, NULL);
+       wpa_s->wps_er = NULL;
+#endif /* CONFIG_WPS_ER */
+
+       wps_registrar_deinit(wpa_s->wps->registrar);
+       wpabuf_free(wpa_s->wps->dh_pubkey);
+       wpabuf_free(wpa_s->wps->dh_privkey);
+       wpabuf_free(wpa_s->wps->oob_conf.pubkey_hash);
+       wpabuf_free(wpa_s->wps->oob_conf.dev_password);
        os_free(wpa_s->wps->network_key);
        os_free(wpa_s->wps);
        wpa_s->wps = NULL;
 }
 
 
-int wpas_wps_ssid_bss_match(struct wpa_ssid *ssid, struct wpa_scan_res *bss)
+int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
+                           struct wpa_ssid *ssid, struct wpa_scan_res *bss)
 {
        struct wpabuf *wps_ie;
 
@@ -451,14 +1053,25 @@ int wpas_wps_ssid_bss_match(struct wpa_ssid *ssid, struct wpa_scan_res *bss)
                        return 0;
                }
 
-               if (!wps_is_selected_pin_registrar(wps_ie)) {
-                       wpa_printf(MSG_DEBUG, "   skip - WPS AP "
-                                  "without active PIN Registrar");
-                       wpabuf_free(wps_ie);
-                       return 0;
+               /*
+                * Start with WPS APs that advertise our address as an
+                * authorized MAC (v2.0) or active PIN Registrar (v1.0) and
+                * allow any WPS AP after couple of scans since some APs do not
+                * set Selected Registrar attribute properly when using
+                * external Registrar.
+                */
+               if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) {
+                       if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG) {
+                               wpa_printf(MSG_DEBUG, "   skip - WPS AP "
+                                          "without active PIN Registrar");
+                               wpabuf_free(wps_ie);
+                               return 0;
+                       }
+                       wpa_printf(MSG_DEBUG, "   selected based on WPS IE");
+               } else {
+                       wpa_printf(MSG_DEBUG, "   selected based on WPS IE "
+                                  "(Authorized MAC or Active PIN)");
                }
-               wpa_printf(MSG_DEBUG, "   selected based on WPS IE "
-                          "(Active PIN)");
                wpabuf_free(wps_ie);
                return 1;
        }
@@ -473,7 +1086,8 @@ int wpas_wps_ssid_bss_match(struct wpa_ssid *ssid, struct wpa_scan_res *bss)
 }
 
 
-int wpas_wps_ssid_wildcard_ok(struct wpa_ssid *ssid,
+int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
+                             struct wpa_ssid *ssid,
                              struct wpa_scan_res *bss)
 {
        struct wpabuf *wps_ie = NULL;
@@ -487,12 +1101,42 @@ int wpas_wps_ssid_wildcard_ok(struct wpa_ssid *ssid,
                }
        } else if (eap_is_wps_pin_enrollee(&ssid->eap)) {
                wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
-               if (wps_ie && wps_is_selected_pin_registrar(wps_ie)) {
+               if (wps_ie &&
+                   (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) ||
+                    wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) {
                        /* allow wildcard SSID for WPS PIN */
                        ret = 1;
                }
        }
 
+       if (!ret && ssid->bssid_set &&
+           os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) {
+               /* allow wildcard SSID due to hardcoded BSSID match */
+               ret = 1;
+       }
+
+#ifdef CONFIG_WPS_STRICT
+       if (wps_ie) {
+               if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len >
+                                                  0, bss->bssid) < 0)
+                       ret = 0;
+               if (bss->beacon_ie_len) {
+                       struct wpabuf *bcn_wps;
+                       bcn_wps = wpa_scan_get_vendor_ie_multi_beacon(
+                               bss, WPS_IE_VENDOR_TYPE);
+                       if (bcn_wps == NULL) {
+                               wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE "
+                                          "missing from AP Beacon");
+                               ret = 0;
+                       } else {
+                               if (wps_validate_beacon(wps_ie) < 0)
+                                       ret = 0;
+                               wpabuf_free(bcn_wps);
+                       }
+               }
+       }
+#endif /* CONFIG_WPS_STRICT */
+
        wpabuf_free(wps_ie);
 
        return ret;
@@ -500,52 +1144,55 @@ int wpas_wps_ssid_wildcard_ok(struct wpa_ssid *ssid,
 
 
 int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
-                             struct wpa_scan_res *selected,
-                             struct wpa_ssid *ssid)
+                             struct wpa_bss *selected, struct wpa_ssid *ssid)
 {
        const u8 *sel_uuid, *uuid;
-       size_t i;
        struct wpabuf *wps_ie;
        int ret = 0;
+       struct wpa_bss *bss;
 
        if (!eap_is_wps_pbc_enrollee(&ssid->eap))
                return 0;
 
+       wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is "
+                  "present in scan results; selected BSSID " MACSTR,
+                  MAC2STR(selected->bssid));
+
        /* Make sure that only one AP is in active PBC mode */
-       wps_ie = wpa_scan_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE);
-       if (wps_ie)
+       wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE);
+       if (wps_ie) {
                sel_uuid = wps_get_uuid_e(wps_ie);
-       else
+               wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS",
+                           sel_uuid, UUID_LEN);
+       } else {
+               wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include "
+                          "WPS IE?!");
                sel_uuid = NULL;
-       if (!sel_uuid) {
-               wpa_printf(MSG_DEBUG, "WPS: UUID-E not available for PBC "
-                          "overlap detection");
-               wpabuf_free(wps_ie);
-               return 1;
        }
 
-       for (i = 0; i < wpa_s->scan_res->num; i++) {
-               struct wpa_scan_res *bss = wpa_s->scan_res->res[i];
+       dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
                struct wpabuf *ie;
                if (bss == selected)
                        continue;
-               ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
+               ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
                if (!ie)
                        continue;
                if (!wps_is_selected_pbc_registrar(ie)) {
                        wpabuf_free(ie);
                        continue;
                }
+               wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: "
+                          MACSTR, MAC2STR(bss->bssid));
                uuid = wps_get_uuid_e(ie);
-               if (uuid == NULL) {
-                       wpa_printf(MSG_DEBUG, "WPS: UUID-E not available for "
-                                  "PBC overlap detection (other BSS)");
-                       ret = 1;
-                       wpabuf_free(ie);
-                       break;
-               }
-               if (os_memcmp(sel_uuid, uuid, 16) != 0) {
+               wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS",
+                           uuid, UUID_LEN);
+               if (sel_uuid == NULL || uuid == NULL ||
+                   os_memcmp(sel_uuid, uuid, UUID_LEN) != 0) {
                        ret = 1; /* PBC overlap */
+                       wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: "
+                               MACSTR " and " MACSTR,
+                               MAC2STR(selected->bssid),
+                               MAC2STR(bss->bssid));
                        wpabuf_free(ie);
                        break;
                }
@@ -563,24 +1210,260 @@ int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
 
 void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
 {
-       size_t i;
+       struct wpa_bss *bss;
 
        if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED)
                return;
 
-       for (i = 0; i < wpa_s->scan_res->num; i++) {
-               struct wpa_scan_res *bss = wpa_s->scan_res->res[i];
+       dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
                struct wpabuf *ie;
-               ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
+               ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
                if (!ie)
                        continue;
                if (wps_is_selected_pbc_registrar(ie))
-                       wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC);
+                       wpa_msg_ctrl(wpa_s, MSG_INFO,
+                                    WPS_EVENT_AP_AVAILABLE_PBC);
+               else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0))
+                       wpa_msg_ctrl(wpa_s, MSG_INFO,
+                                    WPS_EVENT_AP_AVAILABLE_AUTH);
                else if (wps_is_selected_pin_registrar(ie))
-                       wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN);
+                       wpa_msg_ctrl(wpa_s, MSG_INFO,
+                                    WPS_EVENT_AP_AVAILABLE_PIN);
                else
-                       wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE);
+                       wpa_msg_ctrl(wpa_s, MSG_INFO,
+                                    WPS_EVENT_AP_AVAILABLE);
                wpabuf_free(ie);
                break;
        }
 }
+
+
+int wpas_wps_searching(struct wpa_supplicant *wpa_s)
+{
+       struct wpa_ssid *ssid;
+
+       for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
+               if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled)
+                       return 1;
+       }
+
+       return 0;
+}
+
+
+int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
+                             char *end)
+{
+       struct wpabuf *wps_ie;
+       int ret;
+
+       wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA);
+       if (wps_ie == NULL)
+               return 0;
+
+       ret = wps_attr_text(wps_ie, buf, end);
+       wpabuf_free(wps_ie);
+       return ret;
+}
+
+
+int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter)
+{
+#ifdef CONFIG_WPS_ER
+       if (wpa_s->wps_er) {
+               wps_er_refresh(wpa_s->wps_er);
+               return 0;
+       }
+       wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter);
+       if (wpa_s->wps_er == NULL)
+               return -1;
+       return 0;
+#else /* CONFIG_WPS_ER */
+       return 0;
+#endif /* CONFIG_WPS_ER */
+}
+
+
+int wpas_wps_er_stop(struct wpa_supplicant *wpa_s)
+{
+#ifdef CONFIG_WPS_ER
+       wps_er_deinit(wpa_s->wps_er, NULL, NULL);
+       wpa_s->wps_er = NULL;
+#endif /* CONFIG_WPS_ER */
+       return 0;
+}
+
+
+#ifdef CONFIG_WPS_ER
+int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr,
+                       const char *uuid, const char *pin)
+{
+       u8 u[UUID_LEN];
+       int any = 0;
+
+       if (os_strcmp(uuid, "any") == 0)
+               any = 1;
+       else if (uuid_str2bin(uuid, u))
+               return -1;
+       return wps_registrar_add_pin(wpa_s->wps->registrar, addr,
+                                    any ? NULL : u,
+                                    (const u8 *) pin, os_strlen(pin), 300);
+}
+
+
+int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid)
+{
+       u8 u[UUID_LEN];
+
+       if (uuid_str2bin(uuid, u))
+               return -1;
+       return wps_er_pbc(wpa_s->wps_er, u);
+}
+
+
+int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid,
+                     const char *pin)
+{
+       u8 u[UUID_LEN];
+
+       if (uuid_str2bin(uuid, u))
+               return -1;
+       return wps_er_learn(wpa_s->wps_er, u, (const u8 *) pin,
+                           os_strlen(pin));
+}
+
+
+int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid,
+                      const char *pin, struct wps_new_ap_settings *settings)
+{
+       u8 u[UUID_LEN];
+       struct wps_credential cred;
+       size_t len;
+
+       if (uuid_str2bin(uuid, u))
+               return -1;
+       if (settings->ssid_hex == NULL || settings->auth == NULL ||
+           settings->encr == NULL || settings->key_hex == NULL)
+               return -1;
+
+       os_memset(&cred, 0, sizeof(cred));
+       len = os_strlen(settings->ssid_hex);
+       if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
+           hexstr2bin(settings->ssid_hex, cred.ssid, len / 2))
+               return -1;
+       cred.ssid_len = len / 2;
+
+       len = os_strlen(settings->key_hex);
+       if ((len & 1) || len > 2 * sizeof(cred.key) ||
+           hexstr2bin(settings->key_hex, cred.key, len / 2))
+               return -1;
+       cred.key_len = len / 2;
+
+       if (os_strcmp(settings->auth, "OPEN") == 0)
+               cred.auth_type = WPS_AUTH_OPEN;
+       else if (os_strcmp(settings->auth, "WPAPSK") == 0)
+               cred.auth_type = WPS_AUTH_WPAPSK;
+       else if (os_strcmp(settings->auth, "WPA2PSK") == 0)
+               cred.auth_type = WPS_AUTH_WPA2PSK;
+       else
+               return -1;
+
+       if (os_strcmp(settings->encr, "NONE") == 0)
+               cred.encr_type = WPS_ENCR_NONE;
+       else if (os_strcmp(settings->encr, "WEP") == 0)
+               cred.encr_type = WPS_ENCR_WEP;
+       else if (os_strcmp(settings->encr, "TKIP") == 0)
+               cred.encr_type = WPS_ENCR_TKIP;
+       else if (os_strcmp(settings->encr, "CCMP") == 0)
+               cred.encr_type = WPS_ENCR_AES;
+       else
+               return -1;
+
+       return wps_er_config(wpa_s->wps_er, u, (const u8 *) pin,
+                            os_strlen(pin), &cred);
+}
+
+
+static void wpas_wps_terminate_cb(void *ctx)
+{
+       wpa_printf(MSG_DEBUG, "WPS ER: Terminated");
+       eloop_terminate();
+}
+#endif /* CONFIG_WPS_ER */
+
+
+int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s)
+{
+#ifdef CONFIG_WPS_ER
+       if (wpa_s->wps_er) {
+               wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s);
+               wpa_s->wps_er = NULL;
+               return 1;
+       }
+#endif /* CONFIG_WPS_ER */
+       return 0;
+}
+
+
+int wpas_wps_in_progress(struct wpa_supplicant *wpa_s)
+{
+       struct wpa_ssid *ssid;
+
+       for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
+               if (!ssid->disabled && ssid->key_mgmt == WPA_KEY_MGMT_WPS)
+                       return 1;
+       }
+
+       return 0;
+}
+
+
+void wpas_wps_update_config(struct wpa_supplicant *wpa_s)
+{
+       struct wps_context *wps = wpa_s->wps;
+
+       if (wps == NULL)
+               return;
+
+       if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) {
+               wps->config_methods = wps_config_methods_str2bin(
+                       wpa_s->conf->config_methods);
+               if ((wps->config_methods &
+                    (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
+                   (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
+                       wpa_printf(MSG_ERROR, "WPS: Both Label and Display "
+                                  "config methods are not allowed at the "
+                                  "same time");
+                       wps->config_methods &= ~WPS_CONFIG_LABEL;
+               }
+       }
+
+       if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE) {
+               if (wpa_s->conf->device_type &&
+                   wps_dev_type_str2bin(wpa_s->conf->device_type,
+                                        wps->dev.pri_dev_type) < 0)
+                       wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
+       }
+
+       if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION)
+               wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
+
+       if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID) {
+               if (is_nil_uuid(wpa_s->conf->uuid)) {
+                       uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
+                       wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
+                                   "address", wps->uuid, WPS_UUID_LEN);
+               } else
+                       os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
+       }
+
+       if (wpa_s->conf->changed_parameters &
+           (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) {
+               /* Update pointers to make sure they refer current values */
+               wps->dev.device_name = wpa_s->conf->device_name;
+               wps->dev.manufacturer = wpa_s->conf->manufacturer;
+               wps->dev.model_name = wpa_s->conf->model_name;
+               wps->dev.model_number = wpa_s->conf->model_number;
+               wps->dev.serial_number = wpa_s->conf->serial_number;
+       }
+}