/*
* hostapd / WPS integration
- * Copyright (c) 2008-2010, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2008-2012, 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
- * published by the Free Software Foundation.
- *
- * Alternatively, this software may be distributed under the terms of BSD
- * license.
- *
- * See README and COPYING for more details.
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
*/
#include "utils/includes.h"
#include "utils/eloop.h"
#include "utils/uuid.h"
#include "crypto/dh_groups.h"
+#include "crypto/dh_group5.h"
+#include "crypto/random.h"
#include "common/wpa_ctrl.h"
#include "common/ieee802_11_defs.h"
#include "common/ieee802_11_common.h"
#include "wps/wps.h"
#include "wps/wps_defs.h"
#include "wps/wps_dev_attr.h"
+#include "wps/wps_attr_parse.h"
#include "hostapd.h"
#include "ap_config.h"
+#include "ap_drv_ops.h"
#include "beacon.h"
#include "sta_info.h"
#include "wps_hostapd.h"
static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd);
#endif /* CONFIG_WPS_UPNP */
-static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr,
- const u8 *ie, size_t ie_len);
+static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da,
+ const u8 *bssid,
+ const u8 *ie, size_t ie_len,
+ int ssi_signal);
static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
hapd->wps_beacon_ie = beacon_ie;
wpabuf_free(hapd->wps_probe_resp_ie);
hapd->wps_probe_resp_ie = probe_resp_ie;
- ieee802_11_set_beacon(hapd);
- return hapd->drv.set_ap_wps_ie(hapd);
+ if (hapd->beacon_set_done)
+ ieee802_11_set_beacon(hapd);
+ return hostapd_set_ap_wps_ie(hapd);
}
}
+struct wps_stop_reg_data {
+ struct hostapd_data *current_hapd;
+ const u8 *uuid_e;
+ const u8 *dev_pw;
+ size_t dev_pw_len;
+};
+
+static int wps_stop_registrar(struct hostapd_data *hapd, void *ctx)
+{
+ struct wps_stop_reg_data *data = ctx;
+ if (hapd != data->current_hapd && hapd->wps != NULL)
+ wps_registrar_complete(hapd->wps->registrar, data->uuid_e,
+ data->dev_pw, data->dev_pw_len);
+ return 0;
+}
+
+
static void hostapd_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
- const u8 *uuid_e)
+ const u8 *uuid_e, const u8 *dev_pw,
+ size_t dev_pw_len)
{
struct hostapd_data *hapd = ctx;
char uuid[40];
+ struct wps_stop_reg_data data;
if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
return;
wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s",
if (hapd->wps_reg_success_cb)
hapd->wps_reg_success_cb(hapd->wps_reg_success_cb_ctx,
mac_addr, uuid_e);
+ data.current_hapd = hapd;
+ data.uuid_e = uuid_e;
+ data.dev_pw = dev_pw;
+ data.dev_pw_len = dev_pw_len;
+ hostapd_wps_for_each(hapd, wps_stop_registrar, &data);
}
}
+static void hapd_new_ap_event(struct hostapd_data *hapd, const u8 *attr,
+ size_t attr_len)
+{
+ size_t blen = attr_len * 2 + 1;
+ char *buf = os_malloc(blen);
+ if (buf) {
+ wpa_snprintf_hex(buf, blen, attr, attr_len);
+ wpa_msg(hapd->msg_ctx, MSG_INFO,
+ WPS_EVENT_NEW_AP_SETTINGS "%s", buf);
+ os_free(buf);
+ }
+}
+
+
static int hapd_wps_cred_cb(struct hostapd_data *hapd, void *ctx)
{
const struct wps_credential *cred = ctx;
if ((hapd->conf->wps_cred_processing == 1 ||
hapd->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(hapd->msg_ctx, MSG_INFO, "%s%s",
- WPS_EVENT_NEW_AP_SETTINGS, _buf);
- os_free(_buf);
- }
+ hapd_new_ap_event(hapd, cred->cred_attr, cred->cred_attr_len);
+ } else if (hapd->conf->wps_cred_processing == 1 ||
+ hapd->conf->wps_cred_processing == 2) {
+ struct wpabuf *attr;
+ attr = wpabuf_alloc(200);
+ if (attr && wps_build_credential_wrap(attr, cred) == 0)
+ hapd_new_ap_event(hapd, wpabuf_head_u8(attr),
+ wpabuf_len(attr));
+ wpabuf_free(attr);
} else
wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS);
if (hapd->conf->ap_setup_locked)
return;
+ if (hapd->ap_pin_failures_consecutive >= 10)
+ return;
wpa_printf(MSG_DEBUG, "WPS: Re-enable AP PIN");
wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
* force attacks.
*/
hapd->ap_pin_failures++;
- wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
- hapd->ap_pin_failures);
+ hapd->ap_pin_failures_consecutive++;
+ wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u "
+ "(%u consecutive)",
+ hapd->ap_pin_failures, hapd->ap_pin_failures_consecutive);
if (hapd->ap_pin_failures < 3)
return 0;
wps_registrar_update_ie(hapd->wps->registrar);
- if (!hapd->conf->ap_setup_locked) {
+ if (!hapd->conf->ap_setup_locked &&
+ hapd->ap_pin_failures_consecutive >= 10) {
+ /*
+ * In indefinite lockdown - disable automatic AP PIN
+ * reenablement.
+ */
+ eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
+ wpa_printf(MSG_DEBUG, "WPS: AP PIN disabled indefinitely");
+ } else if (!hapd->conf->ap_setup_locked) {
if (hapd->ap_pin_lockout_time == 0)
hapd->ap_pin_lockout_time = 60;
else if (hapd->ap_pin_lockout_time < 365 * 24 * 60 * 60 &&
}
+static int wps_ap_pin_success(struct hostapd_data *hapd, void *ctx)
+{
+ if (hapd->conf->ap_pin == NULL || hapd->wps == NULL)
+ return 0;
+
+ if (hapd->ap_pin_failures_consecutive == 0)
+ return 0;
+
+ wpa_printf(MSG_DEBUG, "WPS: Clear consecutive AP PIN failure counter "
+ "- total validation failures %u (%u consecutive)",
+ hapd->ap_pin_failures, hapd->ap_pin_failures_consecutive);
+ hapd->ap_pin_failures_consecutive = 0;
+
+ return 0;
+}
+
+
+static void hostapd_wps_ap_pin_success(struct hostapd_data *hapd)
+{
+ hostapd_wps_for_each(hapd, wps_ap_pin_success, NULL);
+}
+
+
+static const char * wps_event_fail_reason[NUM_WPS_EI_VALUES] = {
+ "No Error", /* WPS_EI_NO_ERROR */
+ "TKIP Only Prohibited", /* WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED */
+ "WEP Prohibited" /* WPS_EI_SECURITY_WEP_PROHIBITED */
+};
+
static void hostapd_wps_event_fail(struct hostapd_data *hapd,
struct wps_event_fail *fail)
{
- wpa_msg(hapd->msg_ctx, MSG_INFO,
- WPS_EVENT_FAIL "msg=%d config_error=%d",
- fail->msg, fail->config_error);
+ if (fail->error_indication > 0 &&
+ fail->error_indication < NUM_WPS_EI_VALUES) {
+ wpa_msg(hapd->msg_ctx, MSG_INFO,
+ WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
+ fail->msg, fail->config_error, fail->error_indication,
+ wps_event_fail_reason[fail->error_indication]);
+ } else {
+ wpa_msg(hapd->msg_ctx, MSG_INFO,
+ WPS_EVENT_FAIL "msg=%d config_error=%d",
+ fail->msg, fail->config_error);
+ }
}
switch (event) {
case WPS_EV_M2D:
+ wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_M2D);
break;
case WPS_EV_FAIL:
hostapd_wps_event_fail(hapd, &data->fail);
break;
case WPS_EV_SUCCESS:
+ wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_SUCCESS);
break;
case WPS_EV_PWD_AUTH_FAIL:
hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail);
break;
case WPS_EV_PBC_OVERLAP:
+ wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_OVERLAP);
break;
case WPS_EV_PBC_TIMEOUT:
+ wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_TIMEOUT);
break;
case WPS_EV_ER_AP_ADD:
break;
break;
case WPS_EV_ER_SET_SELECTED_REGISTRAR:
break;
+ case WPS_EV_AP_PIN_SUCCESS:
+ hostapd_wps_ap_pin_success(hapd);
+ break;
}
if (hapd->wps_event_cb)
hapd->wps_event_cb(hapd->wps_event_cb_ctx, event, data);
wpabuf_free(hapd->wps_probe_resp_ie);
hapd->wps_probe_resp_ie = NULL;
- hapd->drv.set_ap_wps_ie(hapd);
+ hostapd_set_ap_wps_ie(hapd);
}
}
+static int hostapd_wps_set_vendor_ext(struct hostapd_data *hapd,
+ struct wps_context *wps)
+{
+ int i;
+
+ for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++) {
+ wpabuf_free(wps->dev.vendor_ext[i]);
+ wps->dev.vendor_ext[i] = NULL;
+
+ if (hapd->conf->wps_vendor_ext[i] == NULL)
+ continue;
+
+ wps->dev.vendor_ext[i] =
+ wpabuf_dup(hapd->conf->wps_vendor_ext[i]);
+ if (wps->dev.vendor_ext[i] == NULL) {
+ while (--i >= 0)
+ wpabuf_free(wps->dev.vendor_ext[i]);
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+
int hostapd_init_wps(struct hostapd_data *hapd,
struct hostapd_bss_config *conf)
{
wps->config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
}
#endif /* CONFIG_WPS2 */
- if (hapd->conf->device_type &&
- wps_dev_type_str2bin(hapd->conf->device_type,
- wps->dev.pri_dev_type) < 0) {
- wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
+ os_memcpy(wps->dev.pri_dev_type, hapd->conf->device_type,
+ WPS_DEV_TYPE_LEN);
+
+ if (hostapd_wps_set_vendor_ext(hapd, wps) < 0) {
os_free(wps);
return -1;
}
+
wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version);
- wps->dev.rf_bands = hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
- WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
+
+ if (conf->wps_rf_bands) {
+ wps->dev.rf_bands = conf->wps_rf_bands;
+ } else {
+ wps->dev.rf_bands =
+ hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
+ WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
+ }
if (conf->wpa & WPA_PROTO_RSN) {
if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
wps->model_description = hapd->conf->model_description;
wps->model_url = hapd->conf->model_url;
wps->upc = hapd->conf->upc;
+#endif /* CONFIG_WPS_UPNP */
+
+ hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd);
+
+ hapd->wps = wps;
+
+ return 0;
+}
+
+
+int hostapd_init_wps_complete(struct hostapd_data *hapd)
+{
+ struct wps_context *wps = hapd->wps;
+
+ if (wps == NULL)
+ return 0;
+#ifdef CONFIG_WPS_UPNP
if (hostapd_wps_upnp_init(hapd, wps) < 0) {
wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP");
wps_registrar_deinit(wps->registrar);
os_free(wps->network_key);
os_free(wps);
+ hapd->wps = NULL;
return -1;
}
#endif /* CONFIG_WPS_UPNP */
- hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd);
+ return 0;
+}
- hapd->wps = wps;
- return 0;
+static void hostapd_wps_nfc_clear(struct wps_context *wps)
+{
+#ifdef CONFIG_WPS_NFC
+ wps->ap_nfc_dev_pw_id = 0;
+ wpabuf_free(wps->ap_nfc_dh_pubkey);
+ wps->ap_nfc_dh_pubkey = NULL;
+ wpabuf_free(wps->ap_nfc_dh_privkey);
+ wps->ap_nfc_dh_privkey = NULL;
+ wpabuf_free(wps->ap_nfc_dev_pw);
+ wps->ap_nfc_dev_pw = NULL;
+#endif /* CONFIG_WPS_NFC */
}
wpabuf_free(hapd->wps->oob_conf.pubkey_hash);
wpabuf_free(hapd->wps->oob_conf.dev_password);
wps_free_pending_msgs(hapd->wps->upnp_msgs);
+ hostapd_wps_nfc_clear(hapd->wps);
os_free(hapd->wps);
hapd->wps = NULL;
hostapd_wps_clear_ies(hapd);
hapd->wps->upc = hapd->conf->upc;
#endif /* CONFIG_WPS_UPNP */
+ hostapd_wps_set_vendor_ext(hapd, hapd->wps);
+
if (hapd->conf->wps_state)
wps_registrar_update_ie(hapd->wps->registrar);
else
static int wps_button_pushed(struct hostapd_data *hapd, void *ctx)
{
+ const u8 *p2p_dev_addr = ctx;
+ if (hapd->wps == NULL)
+ return 0;
+ return wps_registrar_button_pushed(hapd->wps->registrar, p2p_dev_addr);
+}
+
+
+int hostapd_wps_button_pushed(struct hostapd_data *hapd,
+ const u8 *p2p_dev_addr)
+{
+ return hostapd_wps_for_each(hapd, wps_button_pushed,
+ (void *) p2p_dev_addr);
+}
+
+
+static int wps_cancel(struct hostapd_data *hapd, void *ctx)
+{
if (hapd->wps == NULL)
return 0;
- return wps_registrar_button_pushed(hapd->wps->registrar);
+
+ wps_registrar_wps_cancel(hapd->wps->registrar);
+ ap_for_each_sta(hapd, ap_sta_wps_cancel, NULL);
+
+ return 0;
}
-int hostapd_wps_button_pushed(struct hostapd_data *hapd)
+int hostapd_wps_cancel(struct hostapd_data *hapd)
{
- return hostapd_wps_for_each(hapd, wps_button_pushed, NULL);
+ return hostapd_wps_for_each(hapd, wps_cancel, NULL);
}
#endif /* CONFIG_WPS_OOB */
-static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr,
- const u8 *ie, size_t ie_len)
+static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da,
+ const u8 *bssid,
+ const u8 *ie, size_t ie_len,
+ int ssi_signal)
{
struct hostapd_data *hapd = ctx;
struct wpabuf *wps_ie;
}
#endif /* CONFIG_WPS_STRICT */
- if (!sta) {
+ if (!sta || !(sta->flags & WLAN_STA_WPS)) {
wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found");
return 0;
}
struct hostapd_data *hapd = eloop_data;
wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
hostapd_wps_ap_pin_disable(hapd);
+ wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_PIN_DISABLED);
}
{
wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
hapd->ap_pin_failures = 0;
+ hapd->ap_pin_failures_consecutive = 0;
hapd->conf->ap_setup_locked = 0;
if (hapd->wps->ap_setup_locked) {
wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
struct wps_ap_pin_data data;
pin = wps_generate_pin();
- os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%u", pin);
+ os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%08u", pin);
data.timeout = timeout;
hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
return hapd->conf->ap_pin;
return wps_registrar_config_ap(hapd->wps->registrar, &cred);
}
+
+
+#ifdef CONFIG_WPS_NFC
+
+struct wps_nfc_password_token_data {
+ const u8 *oob_dev_pw;
+ size_t oob_dev_pw_len;
+ int added;
+};
+
+
+static int wps_add_nfc_password_token(struct hostapd_data *hapd, void *ctx)
+{
+ struct wps_nfc_password_token_data *data = ctx;
+ int ret;
+
+ if (hapd->wps == NULL)
+ return 0;
+ ret = wps_registrar_add_nfc_password_token(hapd->wps->registrar,
+ data->oob_dev_pw,
+ data->oob_dev_pw_len);
+ if (ret == 0)
+ data->added++;
+ return ret;
+}
+
+
+static int hostapd_wps_add_nfc_password_token(struct hostapd_data *hapd,
+ struct wps_parse_attr *attr)
+{
+ struct wps_nfc_password_token_data data;
+
+ data.oob_dev_pw = attr->oob_dev_password;
+ data.oob_dev_pw_len = attr->oob_dev_password_len;
+ data.added = 0;
+ if (hostapd_wps_for_each(hapd, wps_add_nfc_password_token, &data) < 0)
+ return -1;
+ return data.added ? 0 : -1;
+}
+
+
+static int hostapd_wps_nfc_tag_process(struct hostapd_data *hapd,
+ const struct wpabuf *wps)
+{
+ struct wps_parse_attr attr;
+
+ wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps);
+
+ if (wps_parse_msg(wps, &attr)) {
+ wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag");
+ return -1;
+ }
+
+ if (attr.oob_dev_password)
+ return hostapd_wps_add_nfc_password_token(hapd, &attr);
+
+ wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag");
+ return -1;
+}
+
+
+int hostapd_wps_nfc_tag_read(struct hostapd_data *hapd,
+ const struct wpabuf *data)
+{
+ const struct wpabuf *wps = data;
+ struct wpabuf *tmp = NULL;
+ int ret;
+
+ if (wpabuf_len(data) < 4)
+ return -1;
+
+ if (*wpabuf_head_u8(data) != 0x10) {
+ /* Assume this contains full NDEF record */
+ tmp = ndef_parse_wifi(data);
+ if (tmp == NULL) {
+ wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF");
+ return -1;
+ }
+ wps = tmp;
+ }
+
+ ret = hostapd_wps_nfc_tag_process(hapd, wps);
+ wpabuf_free(tmp);
+ return ret;
+}
+
+
+struct wpabuf * hostapd_wps_nfc_config_token(struct hostapd_data *hapd,
+ int ndef)
+{
+ struct wpabuf *ret;
+
+ if (hapd->wps == NULL)
+ return NULL;
+
+ ret = wps_get_oob_cred(hapd->wps);
+ if (ndef && ret) {
+ struct wpabuf *tmp;
+ tmp = ndef_build_wifi(ret);
+ wpabuf_free(ret);
+ if (tmp == NULL)
+ return NULL;
+ ret = tmp;
+ }
+
+ return ret;
+}
+
+
+struct wpabuf * hostapd_wps_nfc_token_gen(struct hostapd_data *hapd, int ndef)
+{
+ return wps_nfc_token_gen(ndef, &hapd->conf->wps_nfc_dev_pw_id,
+ &hapd->conf->wps_nfc_dh_pubkey,
+ &hapd->conf->wps_nfc_dh_privkey,
+ &hapd->conf->wps_nfc_dev_pw);
+}
+
+
+int hostapd_wps_nfc_token_enable(struct hostapd_data *hapd)
+{
+ struct wps_context *wps = hapd->wps;
+
+ if (wps == NULL)
+ return -1;
+
+ if (!hapd->conf->wps_nfc_dh_pubkey ||
+ !hapd->conf->wps_nfc_dh_privkey ||
+ !hapd->conf->wps_nfc_dev_pw ||
+ !hapd->conf->wps_nfc_dev_pw_id)
+ return -1;
+
+ hostapd_wps_nfc_clear(wps);
+ wps->ap_nfc_dev_pw_id = hapd->conf->wps_nfc_dev_pw_id;
+ wps->ap_nfc_dh_pubkey = wpabuf_dup(hapd->conf->wps_nfc_dh_pubkey);
+ wps->ap_nfc_dh_privkey = wpabuf_dup(hapd->conf->wps_nfc_dh_privkey);
+ wps->ap_nfc_dev_pw = wpabuf_dup(hapd->conf->wps_nfc_dev_pw);
+
+ if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey ||
+ !wps->ap_nfc_dev_pw) {
+ hostapd_wps_nfc_clear(wps);
+ return -1;
+ }
+
+ return 0;
+}
+
+
+void hostapd_wps_nfc_token_disable(struct hostapd_data *hapd)
+{
+ hostapd_wps_nfc_clear(hapd->wps);
+}
+
+#endif /* CONFIG_WPS_NFC */
projects / mech_eap.git / blobdiff