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_DirWriteAuth(TSS_HCONTEXT tspContext, /* in */ 27 TCPA_DIRINDEX dirIndex, /* in */ 28 TCPA_DIRVALUE *newContents, /* in */ 29 TPM_AUTH * ownerAuth) /* in, out */ 30{ 31 TSS_RESULT result; 32 UINT32 handlesLen = 0; 33 UINT64 offset; 34 BYTE data[sizeof(TCPA_DIRINDEX) + sizeof(TCPA_DIRVALUE)]; 35 36 37 if ((result = obj_context_transport_init(tspContext))) 38 return result; 39 40 LogDebugFn("Executing in a transport session"); 41 42 offset = 0; 43 Trspi_LoadBlob_UINT32(&offset, dirIndex, data); 44 Trspi_LoadBlob_DIGEST(&offset, data, (TPM_DIGEST *)newContents); 45 46 result = obj_context_transport_execute(tspContext, TPM_ORD_DirWriteAuth, sizeof(data), data, 47 NULL, &handlesLen, NULL, ownerAuth, NULL, NULL, 48 NULL); 49 50 return result; 51} 52 53TSS_RESULT 54Transport_DirRead(TSS_HCONTEXT tspContext, /* in */ 55 TCPA_DIRINDEX dirIndex, /* in */ 56 TCPA_DIRVALUE * dirValue) /* out */ 57{ 58 TSS_RESULT result; 59 UINT32 handlesLen = 0, decLen; 60 UINT64 offset; 61 BYTE data[sizeof(TCPA_DIRINDEX)], *dec; 62 63 64 if ((result = obj_context_transport_init(tspContext))) 65 return result; 66 67 LogDebugFn("Executing in a transport session"); 68 69 offset = 0; 70 Trspi_LoadBlob_UINT32(&offset, dirIndex, data); 71 72 if ((result = obj_context_transport_execute(tspContext, TPM_ORD_DirRead, sizeof(data), data, 73 NULL, &handlesLen, NULL, NULL, NULL, &decLen, 74 &dec))) 75 return result; 76 77 offset = 0; 78 Trspi_UnloadBlob_DIGEST(&offset, dec, dirValue); 79 80 return result; 81} 82#endif 83 84