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//**********************************************************************;
// Copyright (c) 2017, Intel Corporation
// All rights reserved.
//
// 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.
//
// 3. Neither the name of Intel Corporation nor the names of its contributors
// may be used to endorse or promote products derived from this software without
// specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 THE COPYRIGHT HOLDER 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.
//**********************************************************************;
#ifndef LIB_TPM2_ATTR_UTIL_H_
#define LIB_TPM2_ATTR_UTIL_H_
#include <stdbool.h>
#include <sapi/tpm20.h>
/**
* Converts a list of | (pipe) separated attributes as defined in tavle 204
* of https://trustedcomputinggroup.org/wp-content/uploads/TPM-Rev-2.0-Part-2-Structures-01.38.pdf
* to an actual bit field representation. The trailing TPMA_NV_ can be omitted and must be lower-case.
* For exmaple, TPMA_NV_PPWRITE, bcomes ppwrite. To append them together, just do the pipe inbetwwen.
* ppwrite|ownerwrite.
*
* @param attribute_list
* The attribute string to parse, which may be modified in place.
* @param nvattrs
* The TPMA_NV attributes set based on the attribute list. Only valid on true returns.
* @return
* true on success, false on error.
*/
bool tpm2_attr_util_nv_strtoattr(char *attribute_list, TPMA_NV *nvattrs);
/**
* Like tpm2_attr_util_nv_strtoattr() but converts TPMA_OBJECT attributes as defined in:
* Table 31 of https://trustedcomputinggroup.org/wp-content/uploads/TPM-Rev-2.0-Part-2-Structures-01.38.pdf
* @param attribute_list
* The attribute string to parse, which may be modified in place.
* The TPMA_OBJECT attributes set based on the attribute list. Only valid on true returns.
* @return
* true on success, false on error.
*/
bool tpm2_attr_util_obj_strtoattr(char *attribute_list, TPMA_OBJECT *objattrs);
/**
* Converts a numerical or friendly string described object attribute into the
* TPMA_OBJECT. Similar to tpm2_alg_util_from_optarg().
* @param argvalue
* Either a raw numeric for a UINT32 or a friendly name object attribute list
* as in tpm2_attr_util_nv_strtoattr().
* @param objattrs
* The converted bits for a TPMA_OBJECT
* @return
* true on success or false on error.
*/
bool tpm2_attr_util_obj_from_optarg(char *argvalue, TPMA_OBJECT *objattrs);
/**
* Converts a TPMA_NV structure to a friendly name style string.
* @param nvattrs
* The nvattrs to convert to nice name.
* @return A string allocated with calloc(), callers shall use
* free() to free it. The string is a null terminated text representation
* of the TPMA_NV attributes.
*/
char *tpm2_attr_util_nv_attrtostr(TPMA_NV nvattrs);
/**
* Like tpm2_nv_util_obj_strtoattr() but converts TPMA_OBJECT attributes as defined in:
* Table 31 of https://trustedcomputinggroup.org/wp-content/uploads/TPM-Rev-2.0-Part-2-Structures-01.38.pdf
* @param objattrs
* The object parameters to convert to a name
* @return
* The name of the object attrs as a string that must be freed via free().
*/
char *tpm2_attr_util_obj_attrtostr(TPMA_OBJECT objattrs);
#endif /* LIB_TPM2_ATTR_UTIL_H_ */
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