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/********************************************************************************/
/* */
/* LibTPM internal interface functions */
/* Written by Stefan Berger */
/* IBM Thomas J. Watson Research Center */
/* $Id: tpm_library_intern.h 4432 2011-02-11 15:30:31Z kgoldman $ */
/* */
/* (c) Copyright IBM Corporation 2011. */
/* */
/* All rights reserved. */
/* */
/* Redistribution and use in source and binary forms, with or without */
/* modification, are permitted provided that the following conditions are */
/* met: */
/* */
/* Redistributions of source code must retain the above copyright notice, */
/* this list of conditions and the following disclaimer. */
/* */
/* 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. */
/* */
/* Neither the names of the IBM 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 TPM_LIBRARY_INTERN_H
#define TPM_LIBRARY_INTERN_H
#include <stdbool.h>
#include "compiler.h"
#include "tpm_library.h"
#define ROUNDUP(VAL, SIZE) \
( ( (VAL) + (SIZE) - 1 ) / (SIZE) ) * (SIZE)
#define _STRINGIFY(x) #x
#define STRINGIFY(x) _STRINGIFY(x)
struct libtpms_callbacks *TPMLIB_GetCallbacks(void);
/* additional TPM 2 error codes from TPM 1.2 */
#define TPM_RC_BAD_PARAMETER 0x03
#define TPM_RC_BAD_VERSION 0x2e
/*
* TPM functionality must all be accessible with this interface
*/
struct tpm_interface {
TPM_RESULT (*MainInit)(void);
void (*Terminate)(void);
uint32_t (*SetBufferSize)(uint32_t wanted_size, uint32_t *min_size,
uint32_t *max_size);
TPM_RESULT (*Process)(unsigned char **respbuffer, uint32_t *resp_size,
uint32_t *respbufsize,
unsigned char *command, uint32_t command_size);
TPM_RESULT (*VolatileAllStore)(unsigned char **buffer, uint32_t *buflen);
TPM_RESULT (*CancelCommand)(void);
TPM_RESULT (*GetTPMProperty)(enum TPMLIB_TPMProperty prop,
int *result);
char *(*GetInfo)(enum TPMLIB_InfoFlags flags);
TPM_RESULT (*TpmEstablishedGet)(TPM_BOOL *tpmEstablished);
TPM_RESULT (*TpmEstablishedReset)(void);
TPM_RESULT (*HashStart)(void);
TPM_RESULT (*HashData)(const unsigned char *data,
uint32_t data_length);
TPM_RESULT (*HashEnd)(void);
TPM_RESULT (*ValidateState)(enum TPMLIB_StateType st,
unsigned int flags);
TPM_RESULT (*SetState)(enum TPMLIB_StateType st,
const unsigned char *buffer, uint32_t buflen);
TPM_RESULT (*GetState)(enum TPMLIB_StateType st,
unsigned char **buffer, uint32_t *buflen);
};
extern const struct tpm_interface DisabledInterface;
extern const struct tpm_interface TPM12Interface;
extern const struct tpm_interface TPM2Interface;
/* prototypes for TPM 1.2 */
TPM_RESULT TPM12_IO_Hash_Start(void);
TPM_RESULT TPM12_IO_Hash_Data(const unsigned char *data,
uint32_t data_length);
TPM_RESULT TPM12_IO_Hash_End(void);
TPM_RESULT TPM12_IO_TpmEstablished_Get(TPM_BOOL *tpmEstablished);
uint32_t TPM12_GetBufferSize(void);
TPM_RESULT TPM12_IO_TpmEstablished_Reset(void);
/* internal logging function */
int TPMLIB_LogPrintf(const char *format, ...);
void TPMLIB_LogPrintfA(unsigned int indent, const char *format, ...) \
ATTRIBUTE_FORMAT(2, 3);
void TPMLIB_LogArray(unsigned int indent, const unsigned char *data,
size_t datalen);
#define TPMLIB_LogError(format, ...) \
TPMLIB_LogPrintfA(~0, "libtpms: "format, __VA_ARGS__)
#define TPMLIB_LogTPM12Error(format, ...) \
TPMLIB_LogPrintfA(~0, "libtpms/tpm12: "format, __VA_ARGS__)
#define TPMLIB_LogTPM2Error(format, ...) \
TPMLIB_LogPrintfA(~0, "libtpms/tpm2: "format, __VA_ARGS__)
/* prototypes for TPM2 */
TPM_RESULT TPM2_IO_Hash_Start(void);
TPM_RESULT TPM2_IO_Hash_Data(const unsigned char *data,
uint32_t data_length);
TPM_RESULT TPM2_IO_Hash_End(void);
TPM_RESULT TPM2_IO_TpmEstablished_Get(TPM_BOOL *tpmEstablished);
TPM_RESULT TPM2_IO_TpmEstablished_Reset(void);
struct sized_buffer {
unsigned char *buffer;
uint32_t buflen;
#define BUFLEN_EMPTY_BUFFER 0xFFFFFFFF
};
void ClearCachedState(enum TPMLIB_StateType st);
void ClearAllCachedState(void);
void SetCachedState(enum TPMLIB_StateType st,
unsigned char *buffer, uint32_t buflen);
void GetCachedState(enum TPMLIB_StateType st,
unsigned char **buffer, uint32_t *buflen,
bool *is_empty_buffer);
bool HasCachedState(enum TPMLIB_StateType st);
TPM_RESULT CopyCachedState(enum TPMLIB_StateType st,
unsigned char **buffer, uint32_t *buflen,
bool *is_empty_buffer);
const char *TPMLIB_StateTypeToName(enum TPMLIB_StateType st);
enum TPMLIB_StateType TPMLIB_NameToStateType(const char *name);
uint32_t TPM2_GetBufferSize(void);
TPM_RESULT TPM2_PersistentAllStore(unsigned char **buf, uint32_t *buflen);
#endif /* TPM_LIBRARY_INTERN_H */
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