// ===================================================================
//
// Copyright (c) 2005, Intel Corp.
// 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 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 OWNER 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.
// ===================================================================
//
// tcs.h
//
// This file declares the TCS API
//
// ==================================================================
#ifndef __TCS_H__
#define __TCS_H__
#include "tcg.h"
#include "contextmgr.h"
#include "buffer.h"
#define HANDLE_NULL 0
// ------------------------------------------------------------------
// Exposed API
// ------------------------------------------------------------------
TPM_RESULT TCS_create();
void TCS_destroy();
TPM_RESULT TCS_OpenContext( /* OUT */ TCS_CONTEXT_HANDLE* hContext );
TPM_RESULT TCS_CloseContext ( /* IN */ TCS_CONTEXT_HANDLE hContext );
TPM_RESULT TCS_Malloc ( TCS_CONTEXT_HANDLE hContext, // in
UINT32 MemSize, // in
BYTE** ppMemPtr ); //out
TPM_RESULT TCS_FreeMemory ( TCS_CONTEXT_HANDLE hContext, // in
BYTE* pMemory); // in
// ------------------------------------------------------------------
// Exposed API
// ------------------------------------------------------------------
// TPM v1.1B Command Set
// Authorzation
TPM_RESULT TCSP_OIAP( TCS_CONTEXT_HANDLE hContext, // in
TCS_AUTHHANDLE* authHandle, // out
TPM_NONCE* nonce0 // out
);
TPM_RESULT TCSP_OSAP ( TCS_CONTEXT_HANDLE hContext, // in
TPM_ENTITY_TYPE entityType, // in
UINT32 entityValue, // in
TPM_NONCE nonceOddOSAP, // in
TCS_AUTHHANDLE* authHandle, // out
TPM_NONCE* nonceEven, // out
TPM_NONCE* nonceEvenOSAP // out
);
TPM_RESULT TCSP_TakeOwnership ( TCS_CONTEXT_HANDLE hContext, // in
UINT16 protocolID, // in
UINT32 encOwnerAuthSize, // in
BYTE* encOwnerAuth, // in
UINT32 encSrkAuthSize, // in
BYTE* encSrkAuth, // in
UINT32* SrkSize, // in, out
BYTE** Srk, // in, out
TCS_AUTH* ownerAuth // in, out
);
TPM_RESULT TCSP_DisablePubekRead ( TCS_CONTEXT_HANDLE hContext, // in
TCS_AUTH* ownerAuth // in, out
);
TPM_RESULT TCSP_TerminateHandle ( TCS_CONTEXT_HANDLE hContext, // in
TCS_AUTHHANDLE handle // in
);
TPM_RESULT TCSP_FlushSpecific ( TCS_CONTEXT_HANDLE hContext, // in
TCS_AUTHHANDLE handle, // in
TPM_RESOURCE_TYPE resourceType //in
);
// TPM Mandatory
TPM_RESULT TCSP_Extend ( TCS_CONTEXT_HANDLE hContext, // in
TPM_PCRINDEX pcrNum, // in
TPM_DIGEST inDigest, // in
TPM_PCRVALUE* outDigest // out
);
TPM_RESULT TCSP_PcrRead ( TCS_CONTEXT_HANDLE hContext, // in
TPM_PCRINDEX pcrNum, // in
TPM_PCRVALUE* outDigest // out
);
TPM_RESULT TCSP_Quote ( TCS_CONTEXT_HANDLE hContext, // in
TCS_KEY_HANDLE keyHandle, // in
TPM_NONCE antiReplay, // in
UINT32* PcrDataSize, // in, out
BYTE** PcrData, // in, out
TCS_AUTH* privAuth, // in, out
UINT32* sigSize, // out
BYTE** sig // out
);
TPM_RESULT TCSP_Seal ( TCS_CONTEXT_HANDLE hContext, // in
TCS_KEY_HANDLE keyHandle, // in
TPM_ENCAUTH encAuth, // in
UINT32 pcrInfoSize, // in
BYTE* PcrInfo, // in
UINT32 inDataSize, // in
BYTE* inData, // in
TCS_AUTH* pubAuth, // in, out
UINT32* SealedDataSize, // out
BYTE** SealedData // out
);
TPM_RESULT TCSP_Unseal ( TCS_CONTEXT_HANDLE hContext, // in
TCS_KEY_HANDLE parentHandle, // in
UINT32 SealedDataSize, // in
BYTE* SealedData, // in
TCS_AUTH* parentAuth, // in, out
TCS_AUTH* dataAuth, // in, out
UINT32* DataSize, // out
BYTE** Data // out
);
TPM_RESULT TCSP_DirWriteAuth ( TCS_CONTEXT_HANDLE hContext, // in
TPM_DIRINDEX dirIndex, // in
TPM_DIRVALUE newContents, // in
TCS_AUTH* ownerAuth // in, out
);
TPM_RESULT TCSP_DirRead ( TCS_CONTEXT_HANDLE hContext, // in
TPM_DIRINDEX dirIndex, // in
TPM_DIRVALUE* dirValue // out
);
TPM_RESULT TCSP_UnBind ( TCS_CONTEXT_HANDLE hContext, // in
TCS_KEY_HANDLE keyHandle, // in
UINT32 inDataSize, // in
BYTE* inData, // in
TCS_AUTH* privAuth, // in, out
UINT32* outDataSize, // out
BYTE** outData // out
);
TPM_RESULT TCSP_CreateWrapKey ( TCS_CONTEXT_HANDLE hContext, // in
TCS_KEY_HANDLE hWrappingKey, // in
TPM_ENCAUTH KeyUsageAuth, // in
TPM_ENCAUTH KeyMigrationAuth, // in
UINT32* pcKeySize, // in, out
BYTE** prgbKey, // in, out
TCS_AUTH* pAuth // in, out
);
TPM_RESULT TCSP_LoadKeyByBlob ( TCS_CONTEXT_HANDLE hContext, // in
TCS_KEY_HANDLE hUnwrappingKey, // in
UINT32 cWrappedKeyBlobSize, // in
BYTE* rgbWrappedKeyBlob, // in
TCS_AUTH* pAuth, // in, out
TCS_KEY_HANDLE* phKeyTCSI, // out
TCS_KEY_HANDLE* phKeyHMAC // out
);
TPM_RESULT TCSP_GetPubKey ( TCS_CONTEXT_HANDLE hContext, // in
TCS_KEY_HANDLE hKey, // in
TCS_AUTH* pAuth, // in, out
UINT32* pcPubKeySize, // out
BYTE** prgbPubKey // out
);
TPM_RESULT TCSP_EvictKey ( TCS_CONTEXT_HANDLE hContext, // in
TCS_KEY_HANDLE hKey // in
);
TPM_RESULT TCSP_Sign ( TCS_CONTEXT_HANDLE hContext, // in
TCS_KEY_HANDLE keyHandle, // in
UINT32 areaToSignSize, // in
BYTE* areaToSign, // in
TCS_AUTH* privAuth, // in, out
UINT32* sigSize, // out
BYTE** sig // out
);
TPM_RESULT TCSP_GetRandom ( TCS_CONTEXT_HANDLE hContext, // in
UINT32* bytesRequested, // in, out
BYTE** randomBytes // out
);
TPM_RESULT TCSP_StirRandom ( TCS_CONTEXT_HANDLE hContext, // in
UINT32 inDataSize, // in
BYTE* inData // in
);
TPM_RESULT TCSP_ReadPubek ( TCS_CONTEXT_HANDLE hContext, // in
TPM_NONCE antiReplay, // in
UINT32* pubEndorsementKeySize, // out
BYTE** pubEndorsementKey, // out
TPM_DIGEST* checksum // out
);
// Non-Standard TCSP calls
TPM_RESULT TCSP_SaveState(TCS_CONTEXT_HANDLE hContext); // in
//Give direct access to TransmitData.
// Key and Auth Management is done before transfering command to TDDL.
TPM_RESULT TCSP_RawTransmitData(UINT32 inDataSize, // in
BYTE *inData, // in
UINT32 *outDataSize,// in/out
BYTE *outData); // out
///////////// Private Functions ////////////////////
CONTEXT_HANDLE* LookupContext( TCS_CONTEXT_HANDLE hContext);
#endif //TCS_H
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/* **************************************************************************
This program creates a CRC checksum and encodes the file that is named
in the command line.
Compile with: gcc encode_crc.c -Wall -o encode_crc
Author: Michael Margraf (michael.margraf@freecom.com)
Copyright: Freecom Technology GmbH, Berlin, 2004
www.freecom.com
This program 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 program 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.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
************************************************************************* */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
// *******************************************************************
// CCITT polynom G(x)=x^16+x^12+x^5+1
#define POLYNOM 0x1021
// CRC algorithm with MSB first
int make_crc16(int crc, char new)
{
int i;
crc = crc ^ (((int)new) << 8);
for(i=0; i<8; i++) { // work on 8 bits in "new"
crc <<= 1; // MSBs first
if(crc & 0x10000) crc ^= POLYNOM;
}
return crc & 0xFFFF;
}
// *******************************************************************
// Reads the file "filename" into memory and returns pointer to the buffer.
static char *readfile(char *filename, int *size)
{
FILE *fp;
char *buffer;
struct stat info;
if (stat(filename,&info)!=0)
return NULL;
if ((fp=fopen(filename,"r"))==NULL)
return NULL;
buffer=NULL;
for (;;)
{
if ((buffer=(char *)malloc(info.st_size+1))==NULL)
break;
if (fread(buffer,1,info.st_size,fp)!=info.st_size)
{
free(buffer);
buffer=NULL;
break;
}
buffer[info.st_size]='\0';
if(size) *size = info.st_size;
break;
}
(void)fclose(fp);
return buffer;
}
// *******************************************************************
int main(int argc, char** argv)
{
if(argc < 3) {
printf("ERROR: Argument missing!\n\n");
return 1;
}
int count; // size of file in bytes
char *p, *master = readfile(argv[1], &count);
if(!master) {
printf("ERROR: File not found!\n");
return 1;
}
int crc = 0xFFFF, z;
p = master;
for(z=0; z<count; z++)
crc = make_crc16(crc, *(p++)); // calculate CRC
short crc16 = (short)crc;
/*
if(argc > 2) { // with flag for device recognition ?
p = argv[2];
for(z=strlen(p); z>0; z--) {
crc ^= (int)(*p);
*(p++) = (char)crc; // encode device flag
}
}
*/
p = master;
for(z=0; z<count; z++) {
crc ^= (int)(*p);
*(p++) = (char)crc; // encode file
}
// write encoded file...
FILE *fp = fopen(argv[2], "w");
if(!fp) {
printf("ERROR: File not writeable!\n");
return 1;
}
if(argc > 3) { // add flag for device recognition ?
fwrite(argv[3], strlen(argv[3]), sizeof(char), fp);
}
else {
// Device is an FSG, so byte swap (IXP4xx is big endian)
crc16 = ((crc16 >> 8) & 0xFF) | ((crc16 << 8) & 0xFF00);
}
fwrite(&crc16, 1, sizeof(short), fp); // first write CRC
fwrite(master, count, sizeof(char), fp); // write content
fclose(fp);
free(master);
return 0;
}
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