1 2/* 3 * Licensed Materials - Property of IBM 4 * 5 * trousers - An open source TCG Software Stack 6 * 7 * (C) Copyright International Business Machines Corp. 2007 8 * 9 */ 10 11 12#include <stdlib.h> 13#include <string.h> 14 15#include "trousers/tss.h" 16#include "trousers/trousers.h" 17#include "trousers_types.h" 18#include "spi_utils.h" 19#include "capabilities.h" 20#include "tsplog.h" 21#include "obj.h" 22 23 24#ifdef TSS_BUILD_TRANSPORT 25TSS_RESULT 26Transport_UnBind(TSS_HCONTEXT tspContext, /* in */ 27 TCS_KEY_HANDLE keyHandle, /* in */ 28 UINT32 inDataSize, /* in */ 29 BYTE * inData, /* in */ 30 TPM_AUTH * privAuth, /* in, out */ 31 UINT32 * outDataSize, /* out */ 32 BYTE ** outData) /* out */ 33{ 34 TSS_RESULT result; 35 UINT32 handlesLen, dataLen, decLen; 36 TCS_HANDLE *handles, handle; 37 TPM_DIGEST pubKeyHash; 38 Trspi_HashCtx hashCtx; 39 BYTE *dec, *data; 40 UINT64 offset; 41 42 if ((result = obj_context_transport_init(tspContext))) 43 return result; 44 45 LogDebugFn("Executing in a transport session"); 46 47 if ((result = obj_tcskey_get_pubkeyhash(keyHandle, pubKeyHash.digest))) 48 return result; 49 50 result = Trspi_HashInit(&hashCtx, TSS_HASH_SHA1); 51 result |= Trspi_Hash_DIGEST(&hashCtx, pubKeyHash.digest); 52 if ((result |= Trspi_HashFinal(&hashCtx, pubKeyHash.digest))) 53 return result; 54 55 handlesLen = 1; 56 handle = keyHandle; 57 handles = &handle; 58 59 dataLen = sizeof(UINT32) + inDataSize; 60 if ((data = malloc(dataLen)) == NULL) { 61 LogError("malloc of %u bytes failed", dataLen); 62 return TSPERR(TSS_E_OUTOFMEMORY); 63 } 64 65 offset = 0; 66 Trspi_LoadBlob_UINT32(&offset, inDataSize, data); 67 Trspi_LoadBlob(&offset, inDataSize, data, inData); 68 69 if ((result = obj_context_transport_execute(tspContext, TPM_ORD_UnBind, dataLen, data, 70 &pubKeyHash, &handlesLen, &handles, 71 privAuth, NULL, &decLen, &dec))) { 72 free(data); 73 return result; 74 } 75 free(data); 76 77 offset = 0; 78 Trspi_UnloadBlob_UINT32(&offset, outDataSize, dec); 79 80 if ((*outData = malloc(*outDataSize)) == NULL) { 81 free(dec); 82 LogError("malloc of %u bytes failed", *outDataSize); 83 return TSPERR(TSS_E_OUTOFMEMORY); 84 } 85 Trspi_UnloadBlob(&offset, *outDataSize, dec, *outData); 86 87 free(dec); 88 89 return TSS_SUCCESS; 90} 91#endif 92 93