libstb/tss/trustedbootUtils.H

/* IBM_PROLOG_BEGIN_TAG                                                   */
/* This is an automatically generated prolog.                             */
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/* $Source: src/usr/secureboot/trusted/trustedbootUtils.H $               */
/*                                                                        */
/* OpenPOWER HostBoot Project                                             */
/*                                                                        */
/* Contributors Listed Below - COPYRIGHT 2015,2016                        */
/* [+] International Business Machines Corp.                              */
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/*                                                                        */
/* Licensed under the Apache License, Version 2.0 (the "License");        */
/* you may not use this file except in compliance with the License.       */
/* You may obtain a copy of the License at                                */
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/*     http://www.apache.org/licenses/LICENSE-2.0                         */
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/* IBM_PROLOG_END_TAG                                                     */
/**
 * @file trustedbootUtils.H
 *
 * @brief Trustedboot TPM utilities that must be implemented for each
 *  unique implementation
 *
 */

/////////////////////////////////////////////////////////////////
// NOTE: This file is exportable as TSS-Lite for skiboot/PHYP  //
/////////////////////////////////////////////////////////////////

#ifndef __TRUSTEDBOOTUTILS_H
#define __TRUSTEDBOOTUTILS_H
// -----------------------------------------------
// Includes
// -----------------------------------------------
#include "trustedTypes.H"
#include "../tpm_chip.h"

#ifdef __cplusplus
namespace TRUSTEDBOOT
{
#endif

/**
 * @brief Transmit the command to the TPM
 * @param[in/out] io_target Current TPM target structure
 * @param[in/out] io_buffer Input the command buffer to send, response on exit
 * @param[in] i_cmdSize Size of provided command in bytes
 * @param[in] i_bufsize Size of io_buffer in bytes
 * @return errlHndl_t NULL if successful, otherwise a pointer to the
 *       error log.
 */
errlHndl_t tpmTransmit(TpmTarget * io_target,
                       uint8_t* io_buffer,
                       size_t i_cmdSize,
                       size_t i_bufsize );

/**
 * @brief Create an error log entry for potential logging
 * @param[in] i_modId Code Module ID
 * @param[in] i_reasonCode Error Reason Code
 * @param[in] i_user1 User data 1
 * @param[in] i_user2 User data 2
 */
errlHndl_t tpmCreateErrorLog(const uint8_t i_modId,
                             const uint16_t i_reasonCode,
                             const uint64_t i_user1,
                             const uint64_t i_user2);

/**
 * @brief Mark the TPM as non-functional and take required steps
 * @param[in/out] io_target Current TPM target structure
 */
void tpmMarkFailed(TpmTarget * io_target);

#ifdef __cplusplus
} // end TRUSTEDBOOT namespace
#endif

#endif