C++ (Cpp) wps_nfc_token_build Examples

Example #1

File: wps_common.c Project: 9A9A/wpa_supplicant-fork

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);
}

Example #2

File: wps_hostapd.c Project: jmalinen/hostap

struct wpabuf * hostapd_wps_nfc_token_gen(struct hostapd_data *hapd, int ndef)
{
	if (hapd->conf->wps_nfc_pw_from_config) {
		return wps_nfc_token_build(ndef,
					   hapd->conf->wps_nfc_dev_pw_id,
					   hapd->conf->wps_nfc_dh_pubkey,
					   hapd->conf->wps_nfc_dev_pw);
	}

	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);
}

Example #3

File: wps_common.c Project: arend/hostap

struct wpabuf * wps_nfc_token_gen(int ndef, int *id, struct wpabuf **pubkey,
				  struct wpabuf **privkey,
				  struct wpabuf **dev_pw)
{
	struct wpabuf *priv = NULL, *pub = NULL, *pw;
	void *dh_ctx;
	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;
	}

	dh_ctx = dh5_init(&priv, &pub);
	if (dh_ctx == NULL) {
		wpabuf_free(pw);
		return NULL;
	}
	dh5_free(dh_ctx);

	*id = 0x10 + val % 0xfff0;
	wpabuf_free(*pubkey);
	*pubkey = pub;
	wpabuf_free(*privkey);
	*privkey = priv;
	wpabuf_free(*dev_pw);
	*dev_pw = pw;

	return wps_nfc_token_build(ndef, *id, *pubkey, *dev_pw);
}