tpm/tpm_handles.h

/* Software-based Trusted Platform Module (TPM) Emulator
 * Copyright (C) 2004-2010 Mario Strasser <mast@gmx.net>
 *
 * This module is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published
 * by the Free Software Foundation; either version 2 of the License,
 * or (at your option) any later version.
 *
 * This module is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * $Id: tpm_handles.h 364 2010-02-11 10:24:45Z mast $
 */

#ifndef _TPM_HANDLES_
#define _TPM_HANDLES_

#include "tpm_structures.h"

/*
 * definition of an invalid handle
 */ 
#define TPM_INVALID_HANDLE             0xFFFFFFFF

/*
 * macros to convert array indices to handles
 */
#define INDEX_TO_KEY_HANDLE(i)         ((i) | (TPM_RT_KEY << 24))
#define INDEX_TO_AUTH_HANDLE(i)        ((i) | (TPM_RT_AUTH << 24))
#define INDEX_TO_TRANS_HANDLE(i)       ((i) | (TPM_RT_TRANS << 24))
#define INDEX_TO_COUNTER_HANDLE(i)     ((i) | (TPM_RT_COUNTER << 24))
#define INDEX_TO_DAA_HANDLE(i)         ((i) | (TPM_RT_DAA_TPM << 24))

/*
 * marco to convert handles to indices
 */
#define HANDLE_TO_INDEX(h)             ((h) & 0x00FFFFFF)

/*
 * macro to get the ressource type of a handle
 */
#define HANDLE_TO_RT(h)                ((h) >> 24)

/*
 * functions to get the dedicated data for a handle
 */
TPM_KEY_DATA *tpm_get_key_slot(TPM_KEY_HANDLE handle);
TPM_SESSION_DATA *tpm_get_session_slot(TPM_HANDLE handle);
TPM_DAA_SESSION_DATA *tpm_get_daa_slot(TPM_HANDLE handle);

TPM_KEY_DATA *tpm_get_key(TPM_KEY_HANDLE handle);
TPM_SESSION_DATA *tpm_get_auth(TPM_AUTHHANDLE handle);
TPM_SESSION_DATA *tpm_get_transport(TPM_TRANSHANDLE handle);
TPM_COUNTER_VALUE *tpm_get_counter(TPM_COUNT_ID handle);
TPM_DAA_SESSION_DATA *tpm_get_daa(TPM_DAAHANDLE handle);
TPM_NV_DATA_SENSITIVE *tpm_get_nvs(TPM_NV_INDEX index);

#endif /* _TPM_HANDLES_ */