/*
 * Copyright 2010 Red Hat, Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY RED HAT, INC. AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL RED HAT, INC. OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 *
 * Red Hat author: Jan Chadima <jchadima@redhat.com>
 */

#include <sys/types.h>
#include <sys/ioctl.h>
#include <string.h>
#include <errno.h>
#include <linux/ncr.h>
#include "ncrypto.h"
#include "ncrypto_internal.h"

int
ncr_masterkey_set(void *key, size_t key_size)
{
	struct ncr_master_key_st io;
	memset(&io, 0, sizeof(io));

	if (!key || !key_size) {
		errno = EINVAL;
		return -1;
	}

        io.key = key = key;
        io.key_size = key_size;

	if (__ncr_file_descriptor < 0) {
		errno = EBADF;
		return -1;
	}

	if (ioctl(__ncr_file_descriptor, NCRIO_MASTER_KEY_SET, &io) < 0)
		return -1;

	return 0;
}