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. 2004-2007 8 * 9 */ 10 11 #include <stdlib.h> 12 #include <stdio.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 25 TSS_RESULT 26 Transport_ReadCounter(TSS_HCONTEXT tspContext, /* in */ 27 TSS_COUNTER_ID idCounter, /* in */ 28 TPM_COUNTER_VALUE* counterValue) /* out */ 29 { 30 TSS_RESULT result; 31 UINT32 decLen = 0; 32 BYTE *dec = NULL; 33 UINT64 offset; 34 TCS_HANDLE handlesLen = 0; 35 BYTE data[sizeof(UINT32)]; 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, idCounter, data); 44 45 if ((result = obj_context_transport_execute(tspContext, TPM_ORD_ReadCounter, sizeof(data), 46 data, NULL, &handlesLen, NULL, NULL, NULL, 47 &decLen, &dec))) 48 return result; 49 50 offset = 0; 51 Trspi_UnloadBlob_COUNTER_VALUE(&offset, dec, counterValue); 52 53 free(dec); 54 55 return TSS_SUCCESS; 56 } 57 #endif 58