1 files changed, 112 insertions, 0 deletions
diff --git a/src/tspi/tsp_pcr_extend.c b/src/tspi/tsp_pcr_extend.c
new file mode 100644
index 0000000..cd7ada1
--- /dev/null
+++ b/src/tspi/tsp_pcr_extend.c
@@ -0,0 +1,112 @@
+
+/*
+ * Licensed Materials - Property of IBM
+ *
+ * trousers - An open source TCG Software Stack
+ *
+ * (C) Copyright International Business Machines Corp. 2004-2007
+ *
+ */
+
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+#include <errno.h>
+
+#include "trousers/tss.h"
+#include "trousers/trousers.h"
+#include "trousers_types.h"
+#include "spi_utils.h"
+#include "capabilities.h"
+#include "tsplog.h"
+#include "obj.h"
+
+
+#ifdef TSS_BUILD_TRANSPORT
+TSS_RESULT
+Transport_Extend(TSS_HCONTEXT tspContext,	/* in */
+		 TCPA_PCRINDEX pcrNum,	/* in */
+		 TCPA_DIGEST inDigest,	/* in */
+		 TCPA_PCRVALUE * outDigest)	/* out */
+{
+	TSS_RESULT result;
+	UINT64 offset;
+	TCS_HANDLE handlesLen = 0;
+	UINT32 decLen;
+	BYTE data[sizeof(TCPA_PCRINDEX) + sizeof(TCPA_DIGEST)], *dec;
+
+	if ((result = obj_context_transport_init(tspContext)))
+		return result;
+
+	LogDebugFn("Executing in a transport session");
+
+	offset = 0;
+	Trspi_LoadBlob_UINT32(&offset, pcrNum, data);
+	Trspi_LoadBlob(&offset, TPM_SHA1_160_HASH_LEN, data, inDigest.digest);
+
+	if ((result = obj_context_transport_execute(tspContext, TPM_ORD_Extend, sizeof(data), data,
+						    NULL, &handlesLen, NULL, NULL, NULL, &decLen,
+						    &dec)))
+		return result;
+
+	offset = 0;
+	Trspi_UnloadBlob(&offset, decLen, dec, outDigest->digest);
+
+	free(dec);
+
+	return TSS_SUCCESS;
+}
+
+TSS_RESULT
+Transport_PcrRead(TSS_HCONTEXT tspContext,	/* in */
+		  TCPA_PCRINDEX pcrNum,	/* in */
+		  TCPA_PCRVALUE * outDigest)	/* out */
+{
+	TSS_RESULT result;
+	UINT64 offset;
+	TCS_HANDLE handlesLen = 0;
+	UINT32 decLen;
+	BYTE data[sizeof(TCPA_PCRINDEX)], *dec;
+
+	if ((result = obj_context_transport_init(tspContext)))
+		return result;
+
+	LogDebugFn("Executing in a transport session");
+
+	offset = 0;
+	Trspi_LoadBlob_UINT32(&offset, pcrNum, data);
+
+	if ((result = obj_context_transport_execute(tspContext, TPM_ORD_PcrRead, sizeof(data),
+						    data, NULL, &handlesLen, NULL, NULL, NULL,
+						    &decLen, &dec)))
+		return result;
+
+	offset = 0;
+	Trspi_UnloadBlob(&offset, decLen, dec, outDigest->digest);
+
+	free(dec);
+
+	return TSS_SUCCESS;
+}
+
+
+TSS_RESULT
+Transport_PcrReset(TSS_HCONTEXT tspContext,	/* in */
+		   UINT32 pcrDataSizeIn,	/* in */
+		   BYTE * pcrDataIn)		/* in */
+{
+	TSS_RESULT result;
+	TCS_HANDLE handlesLen = 0;
+
+	if ((result = obj_context_transport_init(tspContext)))
+		return result;
+
+	LogDebugFn("Executing in a transport session");
+
+	return obj_context_transport_execute(tspContext, TPM_ORD_PCR_Reset, pcrDataSizeIn,
+					     pcrDataIn, NULL, &handlesLen, NULL, NULL, NULL, NULL,
+					     NULL);
+}
+#endif