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/*
* Copyright (c) 2010-2012 United States Government, as represented by
* the Secretary of Defense. All rights reserved.
*
* THIS SOFTWARE AND ITS DOCUMENTATION ARE PROVIDED AS IS AND WITHOUT
* ANY EXPRESS OR IMPLIED WARRANTIES WHATSOEVER. ALL WARRANTIES
* INCLUDING, BUT NOT LIMITED TO, PERFORMANCE, MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE, AND NONINFRINGEMENT ARE HEREBY
* DISCLAIMED. USERS ASSUME THE ENTIRE RISK AND LIABILITY OF USING THE
* SOFTWARE.
*/
#ifndef NVM_H
#define NVM_H
#include <mini-os/types.h>
#include <xen/xen.h>
#include <tpmfront.h>
#define NVMKEYSZ 32
#define HASHSZ 20
#define HASHKEYSZ (NVMKEYSZ + HASHSZ)
int init_vtpmblk(struct tpmfront_dev* tpmfront_dev);
void shutdown_vtpmblk(void);
/* Encrypts and writes data to blk device */
int write_vtpmblk(struct tpmfront_dev* tpmfront_dev, uint8_t *data, size_t data_length);
/* Reads, Decrypts, and returns data from blk device */
int read_vtpmblk(struct tpmfront_dev* tpmfront_dev, uint8_t **data, size_t *data_length);
#endif
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