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https://github.com/stefanberger/libtpms
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Once we detect that the TPM 2 was put into failure mode, log the command that did it. Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
149 lines
6.2 KiB
C
149 lines
6.2 KiB
C
/********************************************************************************/
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/* */
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/* LibTPM internal interface functions */
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/* Written by Stefan Berger */
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/* IBM Thomas J. Watson Research Center */
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/* $Id: tpm_library_intern.h 4432 2011-02-11 15:30:31Z kgoldman $ */
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/* */
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/* (c) Copyright IBM Corporation 2011. */
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/* */
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/* All rights reserved. */
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/* */
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/* Redistribution and use in source and binary forms, with or without */
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/* modification, are permitted provided that the following conditions are */
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/* met: */
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/* */
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/* Redistributions of source code must retain the above copyright notice, */
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/* this list of conditions and the following disclaimer. */
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/* */
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/* Redistributions in binary form must reproduce the above copyright */
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/* notice, this list of conditions and the following disclaimer in the */
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/* documentation and/or other materials provided with the distribution. */
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/* */
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/* Neither the names of the IBM Corporation nor the names of its */
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/* contributors may be used to endorse or promote products derived from */
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/* this software without specific prior written permission. */
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/* */
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/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS */
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/* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT */
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/* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR */
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/* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT */
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/* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */
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/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */
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/* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, */
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/* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY */
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/* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */
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/* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE */
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/* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
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/********************************************************************************/
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#ifndef TPM_LIBRARY_INTERN_H
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#define TPM_LIBRARY_INTERN_H
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#include <stdbool.h>
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#include "compiler.h"
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#include "tpm_library.h"
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#define ROUNDUP(VAL, SIZE) \
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( ( (VAL) + (SIZE) - 1 ) / (SIZE) ) * (SIZE)
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#define _STRINGIFY(x) #x
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#define STRINGIFY(x) _STRINGIFY(x)
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struct libtpms_callbacks *TPMLIB_GetCallbacks(void);
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/* additional TPM 2 error codes from TPM 1.2 */
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#define TPM_RC_BAD_PARAMETER 0x03
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#define TPM_RC_BAD_VERSION 0x2e
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/*
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* TPM functionality must all be accessible with this interface
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*/
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struct tpm_interface {
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TPM_RESULT (*MainInit)(void);
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void (*Terminate)(void);
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uint32_t (*SetBufferSize)(uint32_t wanted_size, uint32_t *min_size,
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uint32_t *max_size);
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TPM_RESULT (*Process)(unsigned char **respbuffer, uint32_t *resp_size,
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uint32_t *respbufsize,
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unsigned char *command, uint32_t command_size);
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TPM_RESULT (*VolatileAllStore)(unsigned char **buffer, uint32_t *buflen);
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TPM_RESULT (*CancelCommand)(void);
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TPM_RESULT (*GetTPMProperty)(enum TPMLIB_TPMProperty prop,
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int *result);
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char *(*GetInfo)(enum TPMLIB_InfoFlags flags);
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TPM_RESULT (*TpmEstablishedGet)(TPM_BOOL *tpmEstablished);
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TPM_RESULT (*TpmEstablishedReset)(void);
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TPM_RESULT (*HashStart)(void);
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TPM_RESULT (*HashData)(const unsigned char *data,
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uint32_t data_length);
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TPM_RESULT (*HashEnd)(void);
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TPM_RESULT (*ValidateState)(enum TPMLIB_StateType st,
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unsigned int flags);
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TPM_RESULT (*SetState)(enum TPMLIB_StateType st,
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const unsigned char *buffer, uint32_t buflen);
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TPM_RESULT (*GetState)(enum TPMLIB_StateType st,
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unsigned char **buffer, uint32_t *buflen);
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};
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extern const struct tpm_interface TPM12Interface;
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extern const struct tpm_interface TPM2Interface;
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/* prototypes for TPM 1.2 */
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TPM_RESULT TPM12_IO_Hash_Start(void);
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TPM_RESULT TPM12_IO_Hash_Data(const unsigned char *data,
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uint32_t data_length);
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TPM_RESULT TPM12_IO_Hash_End(void);
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TPM_RESULT TPM12_IO_TpmEstablished_Get(TPM_BOOL *tpmEstablished);
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uint32_t TPM12_GetBufferSize(void);
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TPM_RESULT TPM12_IO_TpmEstablished_Reset(void);
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/* internal logging function */
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int TPMLIB_LogPrintf(const char *format, ...);
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void TPMLIB_LogPrintfA(unsigned int indent, const char *format, ...) \
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ATTRIBUTE_FORMAT(2, 3);
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void TPMLIB_LogArray(unsigned int indent, const unsigned char *data,
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size_t datalen);
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#define TPMLIB_LogError(format, ...) \
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TPMLIB_LogPrintfA(~0, "libtpms: "format, __VA_ARGS__)
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#define TPMLIB_LogTPM12Error(format, ...) \
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TPMLIB_LogPrintfA(~0, "libtpms/tpm12: "format, __VA_ARGS__)
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#define TPMLIB_LogTPM2Error(format, ...) \
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TPMLIB_LogPrintfA(~0, "libtpms/tpm2: "format, __VA_ARGS__)
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/* prototypes for TPM2 */
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TPM_RESULT TPM2_IO_Hash_Start(void);
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TPM_RESULT TPM2_IO_Hash_Data(const unsigned char *data,
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uint32_t data_length);
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TPM_RESULT TPM2_IO_Hash_End(void);
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TPM_RESULT TPM2_IO_TpmEstablished_Get(TPM_BOOL *tpmEstablished);
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TPM_RESULT TPM2_IO_TpmEstablished_Reset(void);
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struct sized_buffer {
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unsigned char *buffer;
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uint32_t buflen;
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#define BUFLEN_EMPTY_BUFFER 0xFFFFFFFF
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};
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void ClearCachedState(enum TPMLIB_StateType st);
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void ClearAllCachedState(void);
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void SetCachedState(enum TPMLIB_StateType st,
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unsigned char *buffer, uint32_t buflen);
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void GetCachedState(enum TPMLIB_StateType st,
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unsigned char **buffer, uint32_t *buflen,
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bool *is_empty_buffer);
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bool HasCachedState(enum TPMLIB_StateType st);
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TPM_RESULT CopyCachedState(enum TPMLIB_StateType st,
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unsigned char **buffer, uint32_t *buflen,
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bool *is_empty_buffer);
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const char *TPMLIB_StateTypeToName(enum TPMLIB_StateType st);
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enum TPMLIB_StateType TPMLIB_NameToStateType(const char *name);
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uint32_t TPM2_GetBufferSize(void);
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TPM_RESULT TPM2_PersistentAllStore(unsigned char **buf, uint32_t *buflen);
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#endif /* TPM_LIBRARY_INTERN_H */
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