/*
* Wi-Fi Protected Setup - common functionality
- * Copyright (c) 2008-2009, 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 "includes.h"
#include "common.h"
+#include "common/defs.h"
+#include "common/ieee802_11_common.h"
#include "crypto/aes_wrap.h"
#include "crypto/crypto.h"
#include "crypto/dh_group5.h"
#include "crypto/sha1.h"
#include "crypto/sha256.h"
+#include "crypto/random.h"
#include "wps_i.h"
#include "wps_dev_attr.h"
unsigned int val;
/* Generate seven random digits for the PIN */
- if (os_get_random((unsigned char *) &val, sizeof(val)) < 0) {
+ if (random_get_bytes((unsigned char *) &val, sizeof(val)) < 0) {
struct os_time now;
os_get_time(&now);
val = os_random() ^ now.sec ^ now.usec;
}
+int wps_pin_str_valid(const char *pin)
+{
+ const char *p;
+ size_t len;
+
+ p = pin;
+ while (*p >= '0' && *p <= '9')
+ p++;
+ if (*p != '\0')
+ return 0;
+
+ len = p - pin;
+ return len == 4 || len == 8;
+}
+
+
void wps_fail_event(struct wps_context *wps, enum wps_msg_type msg,
- u16 config_error)
+ u16 config_error, u16 error_indication, const u8 *mac_addr)
{
union wps_event_data data;
os_memset(&data, 0, sizeof(data));
data.fail.msg = msg;
data.fail.config_error = config_error;
+ data.fail.error_indication = error_indication;
+ os_memcpy(data.fail.peer_macaddr, mac_addr, ETH_ALEN);
wps->event_cb(wps->cb_ctx, WPS_EV_FAIL, &data);
}
-void wps_success_event(struct wps_context *wps)
+void wps_success_event(struct wps_context *wps, const u8 *mac_addr)
{
+ union wps_event_data data;
+
if (wps->event_cb == NULL)
return;
- wps->event_cb(wps->cb_ctx, WPS_EV_SUCCESS, NULL);
+ os_memset(&data, 0, sizeof(data));
+ os_memcpy(data.success.peer_macaddr, mac_addr, ETH_ALEN);
+ wps->event_cb(wps->cb_ctx, WPS_EV_SUCCESS, &data);
}
-void wps_pwd_auth_fail_event(struct wps_context *wps, int enrollee, int part)
+void wps_pwd_auth_fail_event(struct wps_context *wps, int enrollee, int part,
+ const u8 *mac_addr)
{
union wps_event_data data;
os_memset(&data, 0, sizeof(data));
data.pwd_auth_fail.enrollee = enrollee;
data.pwd_auth_fail.part = part;
+ os_memcpy(data.pwd_auth_fail.peer_macaddr, mac_addr, ETH_ALEN);
wps->event_cb(wps->cb_ctx, WPS_EV_PWD_AUTH_FAIL, &data);
}
}
+void wps_pbc_active_event(struct wps_context *wps)
+{
+ if (wps->event_cb == NULL)
+ return;
+
+ wps->event_cb(wps->cb_ctx, WPS_EV_PBC_ACTIVE, NULL);
+}
+
+
+void wps_pbc_disable_event(struct wps_context *wps)
+{
+ if (wps->event_cb == NULL)
+ return;
+
+ wps->event_cb(wps->cb_ctx, WPS_EV_PBC_DISABLE, NULL);
+}
+
+
#ifdef CONFIG_WPS_OOB
-static struct wpabuf * wps_get_oob_cred(struct wps_context *wps)
+struct wpabuf * wps_get_oob_cred(struct wps_context *wps, int rf_band,
+ int channel)
{
struct wps_data data;
struct wpabuf *plain;
data.wps = wps;
data.auth_type = wps->auth_types;
data.encr_type = wps->encr_types;
- if (wps_build_version(plain) ||
- wps_build_cred(&data, plain) ||
+ if (wps_build_cred(&data, plain) ||
+ (rf_band && wps_build_rf_bands_attr(plain, rf_band)) ||
+ (channel && wps_build_ap_channel(plain, channel)) ||
+ wps_build_mac_addr(plain, wps->dev.mac_addr) ||
wps_build_wfa_ext(plain, 0, NULL, 0)) {
+ os_free(data.new_psk);
wpabuf_free(plain);
return NULL;
}
+ if (wps->wps_state == WPS_STATE_NOT_CONFIGURED && data.new_psk &&
+ wps->ap) {
+ struct wps_credential cred;
+
+ wpa_printf(MSG_DEBUG, "WPS: Moving to Configured state based "
+ "on credential token generation");
+
+ os_memset(&cred, 0, sizeof(cred));
+ os_memcpy(cred.ssid, wps->ssid, wps->ssid_len);
+ cred.ssid_len = wps->ssid_len;
+ cred.auth_type = WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK;
+ cred.encr_type = WPS_ENCR_TKIP | WPS_ENCR_AES;
+ os_memcpy(cred.key, data.new_psk, data.new_psk_len);
+ cred.key_len = data.new_psk_len;
+
+ wps->wps_state = WPS_STATE_CONFIGURED;
+ wpa_hexdump_ascii_key(MSG_DEBUG,
+ "WPS: Generated random passphrase",
+ data.new_psk, data.new_psk_len);
+ if (wps->cred_cb)
+ wps->cred_cb(wps->cb_ctx, &cred);
+ }
+
+ os_free(data.new_psk);
+
return plain;
}
-static struct wpabuf * wps_get_oob_dev_pwd(struct wps_context *wps)
+struct wpabuf * wps_build_nfc_pw_token(u16 dev_pw_id,
+ const struct wpabuf *pubkey,
+ const struct wpabuf *dev_pw)
{
struct wpabuf *data;
- data = wpabuf_alloc(9 + WPS_OOB_DEVICE_PASSWORD_ATTR_LEN);
- if (data == NULL) {
- wpa_printf(MSG_ERROR, "WPS: Failed to allocate memory for OOB "
- "device password attribute");
- return NULL;
- }
-
- wpabuf_free(wps->oob_conf.dev_password);
- wps->oob_conf.dev_password =
- wpabuf_alloc(WPS_OOB_DEVICE_PASSWORD_LEN * 2 + 1);
- if (wps->oob_conf.dev_password == NULL) {
- wpa_printf(MSG_ERROR, "WPS: Failed to allocate memory for OOB "
- "device password");
- wpabuf_free(data);
+ data = wpabuf_alloc(200);
+ if (data == NULL)
return NULL;
- }
- if (wps_build_version(data) ||
- wps_build_oob_dev_password(data, wps) ||
+ if (wps_build_oob_dev_pw(data, dev_pw_id, pubkey,
+ wpabuf_head(dev_pw), wpabuf_len(dev_pw)) ||
wps_build_wfa_ext(data, 0, NULL, 0)) {
- wpa_printf(MSG_ERROR, "WPS: Build OOB device password "
- "attribute error");
+ wpa_printf(MSG_ERROR, "WPS: Failed to build NFC password "
+ "token");
wpabuf_free(data);
return NULL;
}
}
-static int wps_parse_oob_dev_pwd(struct wps_context *wps,
- struct wpabuf *data)
-{
- struct oob_conf_data *oob_conf = &wps->oob_conf;
- struct wps_parse_attr attr;
- const u8 *pos;
-
- if (wps_parse_msg(data, &attr) < 0 ||
- attr.oob_dev_password == NULL) {
- wpa_printf(MSG_ERROR, "WPS: OOB device password not found");
- return -1;
- }
-
- pos = attr.oob_dev_password;
-
- oob_conf->pubkey_hash =
- wpabuf_alloc_copy(pos, WPS_OOB_PUBKEY_HASH_LEN);
- if (oob_conf->pubkey_hash == NULL) {
- wpa_printf(MSG_ERROR, "WPS: Failed to allocate memory for OOB "
- "public key hash");
- return -1;
- }
- pos += WPS_OOB_PUBKEY_HASH_LEN;
-
- wps->oob_dev_pw_id = WPA_GET_BE16(pos);
- pos += sizeof(wps->oob_dev_pw_id);
-
- oob_conf->dev_password =
- wpabuf_alloc(WPS_OOB_DEVICE_PASSWORD_LEN * 2 + 1);
- if (oob_conf->dev_password == NULL) {
- wpa_printf(MSG_ERROR, "WPS: Failed to allocate memory for OOB "
- "device password");
- return -1;
- }
- wpa_snprintf_hex_uppercase(wpabuf_put(oob_conf->dev_password,
- wpabuf_size(oob_conf->dev_password)),
- wpabuf_size(oob_conf->dev_password), pos,
- WPS_OOB_DEVICE_PASSWORD_LEN);
-
- return 0;
-}
-
-
-static int wps_parse_oob_cred(struct wps_context *wps, struct wpabuf *data)
+int wps_oob_use_cred(struct wps_context *wps, struct wps_parse_attr *attr)
{
struct wpabuf msg;
- struct wps_parse_attr attr;
size_t i;
- if (wps_parse_msg(data, &attr) < 0 || attr.num_cred <= 0) {
- wpa_printf(MSG_ERROR, "WPS: OOB credential not found");
- return -1;
- }
-
- for (i = 0; i < attr.num_cred; i++) {
+ for (i = 0; i < attr->num_cred; i++) {
struct wps_credential local_cred;
struct wps_parse_attr cattr;
os_memset(&local_cred, 0, sizeof(local_cred));
- wpabuf_set(&msg, attr.cred[i], attr.cred_len[i]);
+ wpabuf_set(&msg, attr->cred[i], attr->cred_len[i]);
if (wps_parse_msg(&msg, &cattr) < 0 ||
wps_process_cred(&cattr, &local_cred)) {
wpa_printf(MSG_ERROR, "WPS: Failed to parse OOB "
}
-int wps_process_oob(struct wps_context *wps, struct oob_device_data *oob_dev,
- int registrar)
-{
- struct wpabuf *data;
- int ret, write_f, oob_method = wps->oob_conf.oob_method;
- void *oob_priv;
-
- write_f = oob_method == OOB_METHOD_DEV_PWD_E ? !registrar : registrar;
-
- oob_priv = oob_dev->init_func(wps, oob_dev, registrar);
- if (oob_priv == NULL) {
- wpa_printf(MSG_ERROR, "WPS: Failed to initialize OOB device");
- return -1;
- }
-
- if (write_f) {
- if (oob_method == OOB_METHOD_CRED)
- data = wps_get_oob_cred(wps);
- else
- data = wps_get_oob_dev_pwd(wps);
-
- ret = 0;
- if (data == NULL || oob_dev->write_func(oob_priv, data) < 0)
- ret = -1;
- } else {
- data = oob_dev->read_func(oob_priv);
- if (data == NULL)
- ret = -1;
- else {
- if (oob_method == OOB_METHOD_CRED)
- ret = wps_parse_oob_cred(wps, data);
- else
- ret = wps_parse_oob_dev_pwd(wps, data);
- }
- }
- wpabuf_free(data);
- oob_dev->deinit_func(oob_priv);
-
- if (ret < 0) {
- wpa_printf(MSG_ERROR, "WPS: Failed to process OOB data");
- return -1;
- }
-
- return 0;
-}
-
-
-struct oob_device_data * wps_get_oob_device(char *device_type)
-{
-#ifdef CONFIG_WPS_UFD
- if (os_strstr(device_type, "ufd") != NULL)
- return &oob_ufd_device_data;
-#endif /* CONFIG_WPS_UFD */
-#ifdef CONFIG_WPS_NFC
- if (os_strstr(device_type, "nfc") != NULL)
- return &oob_nfc_device_data;
-#endif /* CONFIG_WPS_NFC */
-
- return NULL;
-}
-
-
-#ifdef CONFIG_WPS_NFC
-struct oob_nfc_device_data * wps_get_oob_nfc_device(char *device_name)
-{
- if (device_name == NULL)
- return NULL;
-#ifdef CONFIG_WPS_NFC_PN531
- if (os_strstr(device_name, "pn531") != NULL)
- return &oob_nfc_pn531_device_data;
-#endif /* CONFIG_WPS_NFC_PN531 */
-
- return NULL;
-}
-#endif /* CONFIG_WPS_NFC */
-
-
-int wps_get_oob_method(char *method)
-{
- if (os_strstr(method, "pin-e") != NULL)
- return OOB_METHOD_DEV_PWD_E;
- if (os_strstr(method, "pin-r") != NULL)
- return OOB_METHOD_DEV_PWD_R;
- if (os_strstr(method, "cred") != NULL)
- return OOB_METHOD_CRED;
- return OOB_METHOD_UNKNOWN;
-}
-
#endif /* CONFIG_WPS_OOB */
ret = os_snprintf(buf, buf_len, "%u-%08X-%u",
WPA_GET_BE16(dev_type), WPA_GET_BE32(&dev_type[2]),
WPA_GET_BE16(&dev_type[6]));
- if (ret < 0 || (unsigned int) ret >= buf_len)
+ if (os_snprintf_error(buf_len, ret))
return NULL;
return buf;
{
u16 methods = 0;
- if (str == NULL) {
+ if (str == NULL || str[0] == '\0') {
/* Default to enabling methods based on build configuration */
methods |= WPS_CONFIG_DISPLAY | WPS_CONFIG_KEYPAD;
-#ifdef CONFIG_WPS2
methods |= WPS_CONFIG_VIRT_DISPLAY;
-#endif /* CONFIG_WPS2 */
-#ifdef CONFIG_WPS_UFD
- methods |= WPS_CONFIG_USBA;
-#endif /* CONFIG_WPS_UFD */
#ifdef CONFIG_WPS_NFC
methods |= WPS_CONFIG_NFC_INTERFACE;
#endif /* CONFIG_WPS_NFC */
+#ifdef CONFIG_P2P
+ methods |= WPS_CONFIG_P2PS;
+#endif /* CONFIG_P2P */
} else {
- if (os_strstr(str, "usba"))
- methods |= WPS_CONFIG_USBA;
if (os_strstr(str, "ethernet"))
methods |= WPS_CONFIG_ETHERNET;
if (os_strstr(str, "label"))
methods |= WPS_CONFIG_PUSHBUTTON;
if (os_strstr(str, "keypad"))
methods |= WPS_CONFIG_KEYPAD;
-#ifdef CONFIG_WPS2
if (os_strstr(str, "virtual_display"))
methods |= WPS_CONFIG_VIRT_DISPLAY;
if (os_strstr(str, "physical_display"))
methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
if (os_strstr(str, "physical_push_button"))
methods |= WPS_CONFIG_PHY_PUSHBUTTON;
-#endif /* CONFIG_WPS2 */
+ if (os_strstr(str, "p2ps"))
+ methods |= WPS_CONFIG_P2PS;
}
return methods;
}
+
+
+struct wpabuf * wps_build_wsc_ack(struct wps_data *wps)
+{
+ struct wpabuf *msg;
+
+ wpa_printf(MSG_DEBUG, "WPS: Building Message WSC_ACK");
+
+ msg = wpabuf_alloc(1000);
+ if (msg == NULL)
+ return NULL;
+
+ if (wps_build_version(msg) ||
+ wps_build_msg_type(msg, WPS_WSC_ACK) ||
+ wps_build_enrollee_nonce(wps, msg) ||
+ wps_build_registrar_nonce(wps, msg) ||
+ wps_build_wfa_ext(msg, 0, NULL, 0)) {
+ wpabuf_free(msg);
+ return NULL;
+ }
+
+ return msg;
+}
+
+
+struct wpabuf * wps_build_wsc_nack(struct wps_data *wps)
+{
+ struct wpabuf *msg;
+
+ wpa_printf(MSG_DEBUG, "WPS: Building Message WSC_NACK");
+
+ msg = wpabuf_alloc(1000);
+ if (msg == NULL)
+ return NULL;
+
+ if (wps_build_version(msg) ||
+ wps_build_msg_type(msg, WPS_WSC_NACK) ||
+ wps_build_enrollee_nonce(wps, msg) ||
+ wps_build_registrar_nonce(wps, msg) ||
+ wps_build_config_error(msg, wps->config_error) ||
+ wps_build_wfa_ext(msg, 0, NULL, 0)) {
+ wpabuf_free(msg);
+ return NULL;
+ }
+
+ return msg;
+}
+
+
+#ifdef CONFIG_WPS_NFC
+
+struct wpabuf * wps_nfc_token_build(int ndef, int id, struct wpabuf *pubkey,
+ struct wpabuf *dev_pw)
+{
+ struct wpabuf *ret;
+
+ if (pubkey == NULL || dev_pw == NULL)
+ return NULL;
+
+ ret = wps_build_nfc_pw_token(id, pubkey, dev_pw);
+ if (ndef && ret) {
+ struct wpabuf *tmp;
+ tmp = ndef_build_wifi(ret);
+ wpabuf_free(ret);
+ if (tmp == NULL)
+ return NULL;
+ ret = tmp;
+ }
+
+ return ret;
+}
+
+
+int wps_nfc_gen_dh(struct wpabuf **pubkey, struct wpabuf **privkey)
+{
+ struct wpabuf *priv = NULL, *pub = NULL;
+ void *dh_ctx;
+
+ dh_ctx = dh5_init(&priv, &pub);
+ if (dh_ctx == NULL)
+ return -1;
+ pub = wpabuf_zeropad(pub, 192);
+ if (pub == NULL) {
+ wpabuf_free(priv);
+ return -1;
+ }
+ wpa_hexdump_buf(MSG_DEBUG, "WPS: Generated new DH pubkey", pub);
+ dh5_free(dh_ctx);
+
+ wpabuf_free(*pubkey);
+ *pubkey = pub;
+ wpabuf_free(*privkey);
+ *privkey = priv;
+
+ return 0;
+}
+
+
+struct wpabuf * wps_nfc_token_gen(int ndef, int *id, struct wpabuf **pubkey,
+ struct wpabuf **privkey,
+ struct wpabuf **dev_pw)
+{
+ struct wpabuf *pw;
+ u16 val;
+
+ pw = wpabuf_alloc(WPS_OOB_DEVICE_PASSWORD_LEN);
+ if (pw == NULL)
+ return NULL;
+
+ if (random_get_bytes(wpabuf_put(pw, WPS_OOB_DEVICE_PASSWORD_LEN),
+ WPS_OOB_DEVICE_PASSWORD_LEN) ||
+ random_get_bytes((u8 *) &val, sizeof(val))) {
+ wpabuf_free(pw);
+ return NULL;
+ }
+
+ if (wps_nfc_gen_dh(pubkey, privkey) < 0) {
+ wpabuf_free(pw);
+ return NULL;
+ }
+
+ *id = 0x10 + val % 0xfff0;
+ wpabuf_free(*dev_pw);
+ *dev_pw = pw;
+
+ return wps_nfc_token_build(ndef, *id, *pubkey, *dev_pw);
+}
+
+
+struct wpabuf * wps_build_nfc_handover_req(struct wps_context *ctx,
+ struct wpabuf *nfc_dh_pubkey)
+{
+ struct wpabuf *msg;
+ void *len;
+
+ if (ctx == NULL)
+ return NULL;
+
+ wpa_printf(MSG_DEBUG, "WPS: Building attributes for NFC connection "
+ "handover request");
+
+ if (nfc_dh_pubkey == NULL) {
+ wpa_printf(MSG_DEBUG, "WPS: No NFC OOB Device Password "
+ "configured");
+ return NULL;
+ }
+
+ msg = wpabuf_alloc(1000);
+ if (msg == NULL)
+ return msg;
+ len = wpabuf_put(msg, 2);
+
+ if (wps_build_oob_dev_pw(msg, DEV_PW_NFC_CONNECTION_HANDOVER,
+ nfc_dh_pubkey, NULL, 0) ||
+ wps_build_uuid_e(msg, ctx->uuid) ||
+ wps_build_wfa_ext(msg, 0, NULL, 0)) {
+ wpabuf_free(msg);
+ return NULL;
+ }
+
+ WPA_PUT_BE16(len, wpabuf_len(msg) - 2);
+
+ return msg;
+}
+
+
+static int wps_build_ssid(struct wpabuf *msg, struct wps_context *wps)
+{
+ wpa_printf(MSG_DEBUG, "WPS: * SSID");
+ wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID in Connection Handover Select",
+ wps->ssid, wps->ssid_len);
+ wpabuf_put_be16(msg, ATTR_SSID);
+ wpabuf_put_be16(msg, wps->ssid_len);
+ wpabuf_put_data(msg, wps->ssid, wps->ssid_len);
+ return 0;
+}
+
+
+static int wps_build_ap_freq(struct wpabuf *msg, int freq)
+{
+ enum hostapd_hw_mode mode;
+ u8 channel, rf_band;
+ u16 ap_channel;
+
+ if (freq <= 0)
+ return 0;
+
+ mode = ieee80211_freq_to_chan(freq, &channel);
+ if (mode == NUM_HOSTAPD_MODES)
+ return 0; /* Unknown channel */
+
+ if (mode == HOSTAPD_MODE_IEEE80211G || mode == HOSTAPD_MODE_IEEE80211B)
+ rf_band = WPS_RF_24GHZ;
+ else if (mode == HOSTAPD_MODE_IEEE80211A)
+ rf_band = WPS_RF_50GHZ;
+ else if (mode == HOSTAPD_MODE_IEEE80211AD)
+ rf_band = WPS_RF_60GHZ;
+ else
+ return 0; /* Unknown band */
+ ap_channel = channel;
+
+ if (wps_build_rf_bands_attr(msg, rf_band) ||
+ wps_build_ap_channel(msg, ap_channel))
+ return -1;
+
+ return 0;
+}
+
+
+struct wpabuf * wps_build_nfc_handover_sel(struct wps_context *ctx,
+ struct wpabuf *nfc_dh_pubkey,
+ const u8 *bssid, int freq)
+{
+ struct wpabuf *msg;
+ void *len;
+
+ if (ctx == NULL)
+ return NULL;
+
+ wpa_printf(MSG_DEBUG, "WPS: Building attributes for NFC connection "
+ "handover select");
+
+ if (nfc_dh_pubkey == NULL) {
+ wpa_printf(MSG_DEBUG, "WPS: No NFC OOB Device Password "
+ "configured");
+ return NULL;
+ }
+
+ msg = wpabuf_alloc(1000);
+ if (msg == NULL)
+ return msg;
+ len = wpabuf_put(msg, 2);
+
+ if (wps_build_oob_dev_pw(msg, DEV_PW_NFC_CONNECTION_HANDOVER,
+ nfc_dh_pubkey, NULL, 0) ||
+ wps_build_ssid(msg, ctx) ||
+ wps_build_ap_freq(msg, freq) ||
+ (bssid && wps_build_mac_addr(msg, bssid)) ||
+ wps_build_wfa_ext(msg, 0, NULL, 0)) {
+ wpabuf_free(msg);
+ return NULL;
+ }
+
+ WPA_PUT_BE16(len, wpabuf_len(msg) - 2);
+
+ return msg;
+}
+
+
+struct wpabuf * wps_build_nfc_handover_req_p2p(struct wps_context *ctx,
+ struct wpabuf *nfc_dh_pubkey)
+{
+ struct wpabuf *msg;
+
+ if (ctx == NULL)
+ return NULL;
+
+ wpa_printf(MSG_DEBUG, "WPS: Building attributes for NFC connection "
+ "handover request (P2P)");
+
+ if (nfc_dh_pubkey == NULL) {
+ wpa_printf(MSG_DEBUG, "WPS: No NFC DH Public Key configured");
+ return NULL;
+ }
+
+ msg = wpabuf_alloc(1000);
+ if (msg == NULL)
+ return msg;
+
+ if (wps_build_manufacturer(&ctx->dev, msg) ||
+ wps_build_model_name(&ctx->dev, msg) ||
+ wps_build_model_number(&ctx->dev, msg) ||
+ wps_build_oob_dev_pw(msg, DEV_PW_NFC_CONNECTION_HANDOVER,
+ nfc_dh_pubkey, NULL, 0) ||
+ wps_build_rf_bands(&ctx->dev, msg, 0) ||
+ wps_build_serial_number(&ctx->dev, msg) ||
+ wps_build_uuid_e(msg, ctx->uuid) ||
+ wps_build_wfa_ext(msg, 0, NULL, 0)) {
+ wpabuf_free(msg);
+ return NULL;
+ }
+
+ return msg;
+}
+
+
+struct wpabuf * wps_build_nfc_handover_sel_p2p(struct wps_context *ctx,
+ int nfc_dev_pw_id,
+ struct wpabuf *nfc_dh_pubkey,
+ struct wpabuf *nfc_dev_pw)
+{
+ struct wpabuf *msg;
+ const u8 *dev_pw;
+ size_t dev_pw_len;
+
+ if (ctx == NULL)
+ return NULL;
+
+ wpa_printf(MSG_DEBUG, "WPS: Building attributes for NFC connection "
+ "handover select (P2P)");
+
+ if (nfc_dh_pubkey == NULL ||
+ (nfc_dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER &&
+ nfc_dev_pw == NULL)) {
+ wpa_printf(MSG_DEBUG, "WPS: No NFC OOB Device Password "
+ "configured");
+ return NULL;
+ }
+
+ msg = wpabuf_alloc(1000);
+ if (msg == NULL)
+ return msg;
+
+ if (nfc_dev_pw) {
+ dev_pw = wpabuf_head(nfc_dev_pw);
+ dev_pw_len = wpabuf_len(nfc_dev_pw);
+ } else {
+ dev_pw = NULL;
+ dev_pw_len = 0;
+ }
+
+ if (wps_build_manufacturer(&ctx->dev, msg) ||
+ wps_build_model_name(&ctx->dev, msg) ||
+ wps_build_model_number(&ctx->dev, msg) ||
+ wps_build_oob_dev_pw(msg, nfc_dev_pw_id, nfc_dh_pubkey,
+ dev_pw, dev_pw_len) ||
+ wps_build_rf_bands(&ctx->dev, msg, 0) ||
+ wps_build_serial_number(&ctx->dev, msg) ||
+ wps_build_uuid_e(msg, ctx->uuid) ||
+ wps_build_wfa_ext(msg, 0, NULL, 0)) {
+ wpabuf_free(msg);
+ return NULL;
+ }
+
+ return msg;
+}
+
+#endif /* CONFIG_WPS_NFC */
projects / mech_eap.git / blobdiff