522b5b6ed3
It seems that WFA WPS spec says that default key index should be 1 (not 0). I think this meas that WEP key indexes region is not from 0 to 3, but from 1 to 4 in WPS. At least WRT610N implemented it this way.
794 lines
20 KiB
C
794 lines
20 KiB
C
/*
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* wpa_supplicant / WPS integration
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* Copyright (c) 2008, Jouni Malinen <j@w1.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Alternatively, this software may be distributed under the terms of BSD
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* license.
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*
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* See README and COPYING for more details.
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*/
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#include "includes.h"
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#include "common.h"
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#include "ieee802_11_defs.h"
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#include "wpa_common.h"
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#include "config.h"
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#include "eap_peer/eap.h"
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#include "wpa_supplicant_i.h"
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#include "eloop.h"
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#include "uuid.h"
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#include "wpa_ctrl.h"
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#include "ctrl_iface_dbus.h"
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#include "eap_common/eap_wsc_common.h"
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#include "blacklist.h"
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#include "wps_supplicant.h"
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#define WPS_PIN_SCAN_IGNORE_SEL_REG 3
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static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx);
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static void wpas_clear_wps(struct wpa_supplicant *wpa_s);
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int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s)
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{
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if (!wpa_s->wps_success &&
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wpa_s->current_ssid &&
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eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
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const u8 *bssid = wpa_s->bssid;
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if (is_zero_ether_addr(bssid))
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bssid = wpa_s->pending_bssid;
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wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR
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" did not succeed - continue trying to find "
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"suitable AP", MAC2STR(bssid));
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wpa_blacklist_add(wpa_s, bssid);
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wpa_supplicant_deauthenticate(wpa_s,
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WLAN_REASON_DEAUTH_LEAVING);
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wpa_s->reassociate = 1;
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wpa_supplicant_req_scan(wpa_s,
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wpa_s->blacklist_cleared ? 5 : 0, 0);
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wpa_s->blacklist_cleared = 0;
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return 1;
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}
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eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
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if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid &&
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!(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
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wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - "
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"try to associate with the received credential");
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wpa_supplicant_deauthenticate(wpa_s,
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WLAN_REASON_DEAUTH_LEAVING);
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wpa_s->reassociate = 1;
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wpa_supplicant_req_scan(wpa_s, 0, 0);
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return 1;
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}
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if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) {
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wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting "
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"for external credential processing");
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wpas_clear_wps(wpa_s);
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wpa_supplicant_deauthenticate(wpa_s,
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WLAN_REASON_DEAUTH_LEAVING);
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return 1;
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}
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return 0;
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}
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static int wpa_supplicant_wps_cred(void *ctx,
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const struct wps_credential *cred)
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{
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struct wpa_supplicant *wpa_s = ctx;
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struct wpa_ssid *ssid = wpa_s->current_ssid;
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u8 key_idx = 0;
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if ((wpa_s->conf->wps_cred_processing == 1 ||
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wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) {
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size_t blen = cred->cred_attr_len * 2 + 1;
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char *buf = os_malloc(blen);
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if (buf) {
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wpa_snprintf_hex(buf, blen,
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cred->cred_attr, cred->cred_attr_len);
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wpa_msg(wpa_s, MSG_INFO, "%s%s",
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WPS_EVENT_CRED_RECEIVED, buf);
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os_free(buf);
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}
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wpa_supplicant_dbus_notify_wps_cred(wpa_s, cred);
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} else
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wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED);
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wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
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cred->cred_attr, cred->cred_attr_len);
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if (wpa_s->conf->wps_cred_processing == 1)
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return 0;
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if (cred->auth_type != WPS_AUTH_OPEN &&
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cred->auth_type != WPS_AUTH_SHARED &&
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cred->auth_type != WPS_AUTH_WPAPSK &&
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cred->auth_type != WPS_AUTH_WPA2PSK) {
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wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
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"unsupported authentication type %d",
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cred->auth_type);
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return 0;
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}
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if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
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wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based "
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"on the received credential");
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os_free(ssid->eap.identity);
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ssid->eap.identity = NULL;
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ssid->eap.identity_len = 0;
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os_free(ssid->eap.phase1);
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ssid->eap.phase1 = NULL;
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os_free(ssid->eap.eap_methods);
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ssid->eap.eap_methods = NULL;
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} else {
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wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the "
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"received credential");
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ssid = wpa_config_add_network(wpa_s->conf);
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if (ssid == NULL)
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return -1;
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}
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wpa_config_set_network_defaults(ssid);
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os_free(ssid->ssid);
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ssid->ssid = os_malloc(cred->ssid_len);
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if (ssid->ssid) {
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os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len);
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ssid->ssid_len = cred->ssid_len;
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}
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switch (cred->encr_type) {
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case WPS_ENCR_NONE:
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break;
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case WPS_ENCR_WEP:
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if (cred->key_len <= 0)
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break;
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if (cred->key_len != 5 && cred->key_len != 13 &&
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cred->key_len != 10 && cred->key_len != 26) {
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wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key length "
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"%lu", (unsigned long) cred->key_len);
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return -1;
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}
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if (cred->key_idx > NUM_WEP_KEYS) {
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wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key index %d",
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cred->key_idx);
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return -1;
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}
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if (cred->key_idx)
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key_idx = cred->key_idx - 1;
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if (cred->key_len == 10 || cred->key_len == 26) {
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if (hexstr2bin((char *) cred->key,
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ssid->wep_key[key_idx],
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cred->key_len / 2) < 0) {
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wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key "
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"%d", key_idx);
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return -1;
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}
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ssid->wep_key_len[key_idx] = cred->key_len / 2;
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} else {
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os_memcpy(ssid->wep_key[key_idx], cred->key,
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cred->key_len);
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ssid->wep_key_len[key_idx] = cred->key_len;
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}
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ssid->wep_tx_keyidx = key_idx;
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break;
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case WPS_ENCR_TKIP:
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ssid->pairwise_cipher = WPA_CIPHER_TKIP;
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break;
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case WPS_ENCR_AES:
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ssid->pairwise_cipher = WPA_CIPHER_CCMP;
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break;
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}
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switch (cred->auth_type) {
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case WPS_AUTH_OPEN:
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ssid->auth_alg = WPA_AUTH_ALG_OPEN;
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ssid->key_mgmt = WPA_KEY_MGMT_NONE;
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ssid->proto = 0;
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break;
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case WPS_AUTH_SHARED:
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ssid->auth_alg = WPA_AUTH_ALG_SHARED;
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ssid->key_mgmt = WPA_KEY_MGMT_NONE;
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ssid->proto = 0;
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break;
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case WPS_AUTH_WPAPSK:
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ssid->auth_alg = WPA_AUTH_ALG_OPEN;
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ssid->key_mgmt = WPA_KEY_MGMT_PSK;
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ssid->proto = WPA_PROTO_WPA;
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break;
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case WPS_AUTH_WPA:
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ssid->auth_alg = WPA_AUTH_ALG_OPEN;
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ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
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ssid->proto = WPA_PROTO_WPA;
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break;
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case WPS_AUTH_WPA2:
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ssid->auth_alg = WPA_AUTH_ALG_OPEN;
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ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
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ssid->proto = WPA_PROTO_RSN;
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break;
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case WPS_AUTH_WPA2PSK:
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ssid->auth_alg = WPA_AUTH_ALG_OPEN;
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ssid->key_mgmt = WPA_KEY_MGMT_PSK;
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ssid->proto = WPA_PROTO_RSN;
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break;
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}
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if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) {
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if (cred->key_len == 2 * PMK_LEN) {
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if (hexstr2bin((const char *) cred->key, ssid->psk,
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PMK_LEN)) {
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wpa_printf(MSG_ERROR, "WPS: Invalid Network "
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"Key");
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return -1;
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}
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ssid->psk_set = 1;
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} else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) {
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os_free(ssid->passphrase);
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ssid->passphrase = os_malloc(cred->key_len + 1);
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if (ssid->passphrase == NULL)
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return -1;
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os_memcpy(ssid->passphrase, cred->key, cred->key_len);
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ssid->passphrase[cred->key_len] = '\0';
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wpa_config_update_psk(ssid);
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} else {
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wpa_printf(MSG_ERROR, "WPS: Invalid Network Key "
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"length %lu",
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(unsigned long) cred->key_len);
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return -1;
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}
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}
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#ifndef CONFIG_NO_CONFIG_WRITE
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if (wpa_s->conf->update_config &&
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wpa_config_write(wpa_s->confname, wpa_s->conf)) {
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wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration");
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return -1;
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}
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#endif /* CONFIG_NO_CONFIG_WRITE */
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return 0;
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}
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static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s,
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struct wps_event_m2d *m2d)
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{
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wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D
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"dev_password_id=%d config_error=%d",
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m2d->dev_password_id, m2d->config_error);
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}
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static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
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struct wps_event_fail *fail)
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{
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wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL "msg=%d", fail->msg);
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wpas_clear_wps(wpa_s);
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}
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static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s)
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{
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wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS);
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wpa_s->wps_success = 1;
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}
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static void wpa_supplicant_wps_event(void *ctx, enum wps_event event,
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union wps_event_data *data)
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{
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struct wpa_supplicant *wpa_s = ctx;
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switch (event) {
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case WPS_EV_M2D:
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wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d);
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break;
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case WPS_EV_FAIL:
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wpa_supplicant_wps_event_fail(wpa_s, &data->fail);
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break;
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case WPS_EV_SUCCESS:
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wpa_supplicant_wps_event_success(wpa_s);
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break;
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case WPS_EV_PWD_AUTH_FAIL:
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break;
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}
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}
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enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid)
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{
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if (eap_is_wps_pbc_enrollee(&ssid->eap) ||
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eap_is_wps_pin_enrollee(&ssid->eap))
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return WPS_REQ_ENROLLEE;
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else
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return WPS_REQ_REGISTRAR;
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}
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static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
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{
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int id;
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struct wpa_ssid *ssid;
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eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
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/* Remove any existing WPS network from configuration */
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ssid = wpa_s->conf->ssid;
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while (ssid) {
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if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
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if (ssid == wpa_s->current_ssid)
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wpa_s->current_ssid = NULL;
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id = ssid->id;
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} else
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id = -1;
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ssid = ssid->next;
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if (id >= 0)
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wpa_config_remove_network(wpa_s->conf, id);
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}
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}
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static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
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{
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struct wpa_supplicant *wpa_s = eloop_ctx;
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wpa_printf(MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
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"out");
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wpas_clear_wps(wpa_s);
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}
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static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
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int registrar, const u8 *bssid)
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{
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struct wpa_ssid *ssid;
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ssid = wpa_config_add_network(wpa_s->conf);
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if (ssid == NULL)
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return NULL;
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wpa_config_set_network_defaults(ssid);
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if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 ||
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wpa_config_set(ssid, "eap", "WSC", 0) < 0 ||
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wpa_config_set(ssid, "identity", registrar ?
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"\"" WSC_ID_REGISTRAR "\"" :
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"\"" WSC_ID_ENROLLEE "\"", 0) < 0) {
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wpa_config_remove_network(wpa_s->conf, ssid->id);
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return NULL;
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}
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if (bssid) {
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size_t i;
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struct wpa_scan_res *res;
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os_memcpy(ssid->bssid, bssid, ETH_ALEN);
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ssid->bssid_set = 1;
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/* Try to get SSID from scan results */
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if (wpa_s->scan_res == NULL &&
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wpa_supplicant_get_scan_results(wpa_s) < 0)
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return ssid; /* Could not find any scan results */
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for (i = 0; i < wpa_s->scan_res->num; i++) {
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const u8 *ie;
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res = wpa_s->scan_res->res[i];
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if (os_memcmp(bssid, res->bssid, ETH_ALEN) != 0)
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continue;
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ie = wpa_scan_get_ie(res, WLAN_EID_SSID);
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if (ie == NULL)
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break;
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os_free(ssid->ssid);
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ssid->ssid = os_malloc(ie[1]);
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if (ssid->ssid == NULL)
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break;
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os_memcpy(ssid->ssid, ie + 2, ie[1]);
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ssid->ssid_len = ie[1];
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break;
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}
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}
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return ssid;
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}
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static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
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struct wpa_ssid *selected)
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{
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struct wpa_ssid *ssid;
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/* Mark all other networks disabled and trigger reassociation */
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ssid = wpa_s->conf->ssid;
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while (ssid) {
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ssid->disabled = ssid != selected;
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ssid = ssid->next;
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}
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wpa_s->disconnected = 0;
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wpa_s->reassociate = 1;
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wpa_s->scan_runs = 0;
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wpa_s->wps_success = 0;
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wpa_s->blacklist_cleared = 0;
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wpa_supplicant_req_scan(wpa_s, 0, 0);
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}
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int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid)
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{
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struct wpa_ssid *ssid;
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wpas_clear_wps(wpa_s);
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ssid = wpas_wps_add_network(wpa_s, 0, bssid);
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if (ssid == NULL)
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return -1;
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wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0);
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eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
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wpa_s, NULL);
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wpas_wps_reassoc(wpa_s, ssid);
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return 0;
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}
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int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
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const char *pin)
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{
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struct wpa_ssid *ssid;
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char val[30];
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unsigned int rpin = 0;
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wpas_clear_wps(wpa_s);
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ssid = wpas_wps_add_network(wpa_s, 0, bssid);
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if (ssid == NULL)
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return -1;
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if (pin)
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os_snprintf(val, sizeof(val), "\"pin=%s\"", pin);
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else {
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rpin = wps_generate_pin();
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os_snprintf(val, sizeof(val), "\"pin=%08d\"", rpin);
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}
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wpa_config_set(ssid, "phase1", val, 0);
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eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
|
|
wpa_s, NULL);
|
|
wpas_wps_reassoc(wpa_s, ssid);
|
|
return rpin;
|
|
}
|
|
|
|
|
|
int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
|
|
const char *pin)
|
|
{
|
|
struct wpa_ssid *ssid;
|
|
char val[30];
|
|
|
|
if (!pin)
|
|
return -1;
|
|
wpas_clear_wps(wpa_s);
|
|
ssid = wpas_wps_add_network(wpa_s, 1, bssid);
|
|
if (ssid == NULL)
|
|
return -1;
|
|
os_snprintf(val, sizeof(val), "\"pin=%s\"", pin);
|
|
wpa_config_set(ssid, "phase1", val, 0);
|
|
eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
|
|
wpa_s, NULL);
|
|
wpas_wps_reassoc(wpa_s, ssid);
|
|
return 0;
|
|
}
|
|
|
|
|
|
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;
|
|
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|%d-%08X-%d]",
|
|
uuid, MAC2STR(dev->mac_addr), dev->device_name,
|
|
dev->manufacturer, dev->model_name,
|
|
dev->model_number, dev->serial_number,
|
|
dev->categ, dev->oui, dev->sub_categ);
|
|
if (len > 0 && len < (int) sizeof(txt))
|
|
wpa_printf(MSG_INFO, "%s", txt);
|
|
}
|
|
|
|
|
|
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;
|
|
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;
|
|
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->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);
|
|
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.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;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
|
|
{
|
|
eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
|
|
|
|
if (wpa_s->wps == NULL)
|
|
return;
|
|
|
|
wps_registrar_deinit(wpa_s->wps->registrar);
|
|
os_free(wpa_s->wps->network_key);
|
|
os_free(wpa_s->wps);
|
|
wpa_s->wps = NULL;
|
|
}
|
|
|
|
|
|
int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
|
|
struct wpa_ssid *ssid, struct wpa_scan_res *bss)
|
|
{
|
|
struct wpabuf *wps_ie;
|
|
|
|
if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
|
|
return -1;
|
|
|
|
wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
|
|
if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
|
|
if (!wps_ie) {
|
|
wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
|
|
return 0;
|
|
}
|
|
|
|
if (!wps_is_selected_pbc_registrar(wps_ie)) {
|
|
wpa_printf(MSG_DEBUG, " skip - WPS AP "
|
|
"without active PBC Registrar");
|
|
wpabuf_free(wps_ie);
|
|
return 0;
|
|
}
|
|
|
|
/* TODO: overlap detection */
|
|
wpa_printf(MSG_DEBUG, " selected based on WPS IE "
|
|
"(Active PBC)");
|
|
wpabuf_free(wps_ie);
|
|
return 1;
|
|
}
|
|
|
|
if (eap_is_wps_pin_enrollee(&ssid->eap)) {
|
|
if (!wps_ie) {
|
|
wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Start with WPS APs that advertise active PIN Registrar and
|
|
* allow any WPS AP after third scan since some APs do not set
|
|
* Selected Registrar attribute properly when using external
|
|
* Registrar.
|
|
*/
|
|
if (!wps_is_selected_pin_registrar(wps_ie)) {
|
|
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 "
|
|
"(Active PIN)");
|
|
}
|
|
wpabuf_free(wps_ie);
|
|
return 1;
|
|
}
|
|
|
|
if (wps_ie) {
|
|
wpa_printf(MSG_DEBUG, " selected based on WPS IE");
|
|
wpabuf_free(wps_ie);
|
|
return 1;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
|
|
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;
|
|
int ret = 0;
|
|
|
|
if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
|
|
wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
|
|
if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) {
|
|
/* allow wildcard SSID for WPS PBC */
|
|
ret = 1;
|
|
}
|
|
} 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) ||
|
|
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;
|
|
}
|
|
|
|
wpabuf_free(wps_ie);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
|
|
struct wpa_scan_res *selected,
|
|
struct wpa_ssid *ssid)
|
|
{
|
|
const u8 *sel_uuid, *uuid;
|
|
size_t i;
|
|
struct wpabuf *wps_ie;
|
|
int ret = 0;
|
|
|
|
if (!eap_is_wps_pbc_enrollee(&ssid->eap))
|
|
return 0;
|
|
|
|
/* 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)
|
|
sel_uuid = wps_get_uuid_e(wps_ie);
|
|
else
|
|
sel_uuid = NULL;
|
|
|
|
for (i = 0; i < wpa_s->scan_res->num; i++) {
|
|
struct wpa_scan_res *bss = wpa_s->scan_res->res[i];
|
|
struct wpabuf *ie;
|
|
if (bss == selected)
|
|
continue;
|
|
ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
|
|
if (!ie)
|
|
continue;
|
|
if (!wps_is_selected_pbc_registrar(ie)) {
|
|
wpabuf_free(ie);
|
|
continue;
|
|
}
|
|
uuid = wps_get_uuid_e(ie);
|
|
if (sel_uuid == NULL || uuid == NULL ||
|
|
os_memcmp(sel_uuid, uuid, 16) != 0) {
|
|
ret = 1; /* PBC overlap */
|
|
wpabuf_free(ie);
|
|
break;
|
|
}
|
|
|
|
/* TODO: verify that this is reasonable dual-band situation */
|
|
|
|
wpabuf_free(ie);
|
|
}
|
|
|
|
wpabuf_free(wps_ie);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
|
|
{
|
|
size_t i;
|
|
|
|
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];
|
|
struct wpabuf *ie;
|
|
ie = wpa_scan_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);
|
|
else if (wps_is_selected_pin_registrar(ie))
|
|
wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN);
|
|
else
|
|
wpa_msg(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;
|
|
}
|