1 files changed, 119 insertions, 0 deletions
diff --git a/src/tcs/tcsi_tick.c b/src/tcs/tcsi_tick.c
new file mode 100644
index 0000000..b752e83
--- /dev/null
+++ b/src/tcs/tcsi_tick.c
@@ -0,0 +1,119 @@
+
+/*
+ * Licensed Materials - Property of IBM
+ *
+ * trousers - An open source TCG Software Stack
+ *
+ * (C) Copyright International Business Machines Corp. 2007
+ *
+ */
+
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "trousers/tss.h"
+#include "trousers_types.h"
+#include "tcs_tsp.h"
+#include "tcs_utils.h"
+#include "tcs_int_literals.h"
+#include "capabilities.h"
+#include "tcslog.h"
+#include "tcsps.h"
+#include "req_mgr.h"
+
+
+TSS_RESULT
+TCSP_ReadCurrentTicks_Internal(TCS_CONTEXT_HANDLE hContext,
+			       UINT32*            pulCurrentTime,
+			       BYTE**             prgbCurrentTime)
+{
+	TSS_RESULT result;
+	UINT32 paramSize;
+	UINT64 offset = 0;
+	BYTE txBlob[TSS_TPM_TXBLOB_SIZE];
+
+	if ((result = ctx_verify_context(hContext)))
+		return result;
+
+	if ((result = tpm_rqu_build(TPM_ORD_GetTicks, &offset, txBlob, NULL)))
+		return result;
+
+	if ((result = req_mgr_submit_req(txBlob)))
+		goto done;
+
+	result = UnloadBlob_Header(txBlob, &paramSize);
+	if (!result)
+		result = tpm_rsp_parse(TPM_ORD_GetTicks, txBlob, paramSize, pulCurrentTime,
+				       prgbCurrentTime, NULL);
+
+done:
+	return result;
+}
+
+TSS_RESULT
+TCSP_TickStampBlob_Internal(TCS_CONTEXT_HANDLE hContext,
+			    TCS_KEY_HANDLE     hKey,
+			    TPM_NONCE*         antiReplay,
+			    TPM_DIGEST*        digestToStamp,
+			    TPM_AUTH*          privAuth,
+			    UINT32*            pulSignatureLength,
+			    BYTE**             prgbSignature,
+			    UINT32*            pulTickCountLength,
+			    BYTE**             prgbTickCount)
+{
+	TSS_RESULT result;
+	UINT32 paramSize;
+	UINT64 offset = 0;
+	TPM_KEY_HANDLE keySlot;
+	BYTE txBlob[TSS_TPM_TXBLOB_SIZE];
+
+	if ((result = ctx_verify_context(hContext)))
+		return result;
+
+	if (privAuth) {
+		if ((result = auth_mgr_check(hContext, &privAuth->AuthHandle)))
+			goto done;
+	}
+
+	if ((result = ensureKeyIsLoaded(hContext, hKey, &keySlot)))
+		goto done;
+
+	if ((result = tpm_rqu_build(TPM_ORD_TickStampBlob, &offset, txBlob, keySlot, antiReplay,
+				    digestToStamp, privAuth)))
+		return result;
+
+	if ((result = req_mgr_submit_req(txBlob)))
+		goto done;
+
+	if ((result = UnloadBlob_Header(txBlob, &paramSize))) {
+		LogDebugFn("UnloadBlob_Header failed: rc=0x%x", result);
+		goto done;
+	}
+
+	if (!result) {
+		result = tpm_rsp_parse(TPM_ORD_TickStampBlob, txBlob, paramSize, pulTickCountLength,
+				       prgbTickCount, pulSignatureLength, prgbSignature, privAuth);
+	}
+done:
+	return result;
+}
+
+void
+UnloadBlob_CURRENT_TICKS(UINT64 *offset, BYTE *b, TPM_CURRENT_TICKS *t)
+{
+	if (!t) {
+		UnloadBlob_UINT16(offset, NULL, b);
+		UnloadBlob_UINT64(offset, NULL, b);
+		UnloadBlob_UINT16(offset, NULL, b);
+		UnloadBlob(offset, sizeof(TPM_NONCE), b, NULL);
+
+		return;
+	}
+
+	UnloadBlob_UINT16(offset, &t->tag, b);
+	UnloadBlob_UINT64(offset, &t->currentTicks, b);
+	UnloadBlob_UINT16(offset, &t->tickRate, b);
+	UnloadBlob(offset, sizeof(TPM_NONCE), b, (BYTE *)&t->tickNonce);
+}