Initial code for the TPM Lightweight Command Library.

src/platform/tpm_lite/src/tlcl/tlcl_internal.h

Index: src/platform/tpm_lite/src/tlcl/tlcl_internal.h
diff --git a/src/platform/tpm_lite/src/tlcl/tlcl_internal.h b/src/platform/tpm_lite/src/tlcl/tlcl_internal.h
new file mode 100644
index 0000000000000000000000000000000000000000..1ca71c076787c039a76351ceaca4d10400ce6553
--- /dev/null
+++ b/src/platform/tpm_lite/src/tlcl/tlcl_internal.h
@@ -0,0 +1,105 @@
+/* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef TPM_LITE_TLCL_INTERNAL_H_
+#define TPM_LITE_TLCL_INTERNAL_H_
+
+#include <stdarg.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+typedef int bool;
+const bool true = 1;
+const bool false = 0;
+
+#define POSSIBLY_UNUSED __attribute__((unused))
+
+#ifdef __STRICT_ANSI__
+#define INLINE
+#else
+#define INLINE inline
+#endif
+
+/*
+ * Output an error message and quit the program.
+ */
+static void error(const char *format, ...) {
+  va_list ap;
+  va_start(ap, format);
+  fprintf(stderr, "ERROR: ");
+  vfprintf(stderr, format, ap);
+  va_end(ap);
+  exit(1);
+}
+
+/*
+ * Output a warning and continue.
+ */
+POSSIBLY_UNUSED
+static void warning(const char *format, ...) {
+  va_list ap;
+  va_start(ap, format);
+  fprintf(stderr, "WARNING: ");
+  vfprintf(stderr, format, ap);
+  va_end(ap);
+  exit(1);
+}
+
+#define assert(expr) do { if (!(expr)) { \
+      error("assert fail: %s at %s:%d\n", \
+            #expr, __FILE__, __LINE__); }} while(0)
+
+/*
+ * Conversion functions.  ToTpmTYPE puts a value of type TYPE into a TPM
+ * command buffer.  FromTpmTYPE gets a value of type TYPE from a TPM command
+ * buffer into a variable.
+ */
+POSSIBLY_UNUSED
+static INLINE void ToTpmUint32(uint8_t *buffer, uint32_t x) {
+  buffer[0] = (x >> 24);
+  buffer[1] = ((x >> 16) & 0xff);
+  buffer[2] = ((x >> 8) & 0xff);
+  buffer[3] = x & 0xff;
+}
+
+/*
+ * See comment for above function.
+ */
+POSSIBLY_UNUSED
+static INLINE void FromTpmUint32(const uint8_t *buffer, uint32_t *x) {
+  *x = ((buffer[0] << 24) |
+        (buffer[1] << 16) |
+        (buffer[2] << 8) |
+        buffer[3]);
+}
+
+/*
+ * See comment for above function.
+ */
+POSSIBLY_UNUSED
+static INLINE void ToTpmUint16(uint8_t *buffer, uint16_t x) {
+  buffer[0] = (x >> 8);
+  buffer[1] = x & 0xff;
+}
+
+/*
+ * See comment for above function.
+ */
+POSSIBLY_UNUSED
+static INLINE void FromTpmUint16(const uint8_t *buffer, uint16_t *x) {
+  *x = (buffer[0] << 8) | buffer[1];
+}
+
+/*
+ * These numbers derive from adding the sizes of command fields as shown in the
+ * TPM commands manual.
+ */
+const int kTpmRequestHeaderLength = 10;
+const int kTpmResponseHeaderLength = 14;
+const int kTpmReadInfoLength = 12;
+const int kEncAuthLength = 20;
+
+#endif