Major refactoring of structures, with unit tests.

host/include/host_common.h

+/* 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.
+ *
+ * Host-side functions for verified boot.
+ */
+
+#ifndef VBOOT_REFERENCE_HOST_COMMON_H_
+#define VBOOT_REFERENCE_HOST_COMMON_H_
+
+#include <stdint.h>
+
+#include "cryptolib.h"
+#include "host_key.h"
+#include "host_signature.h"
+#include "utility.h"
+#include "vboot_struct.h"
+
+
+/* Create a key block header containing [data_key] and [flags], signed
+ * by [signing_key].  Caller owns the returned pointer, and must free
+ * it with Free(). */
+VbKeyBlockHeader* CreateKeyBlock(const VbPublicKey* data_key,
+                                 const VbPrivateKey* signing_key,
+                                 uint64_t flags);
+
+
+/* Creates a firmware preamble, signed with [signing_key].
+ * Caller owns the returned pointer, and must free it with Free().
+ *
+ * Returns NULL if error. */
+VbFirmwarePreambleHeader* CreateFirmwarePreamble(
+    uint64_t firmware_version,
+    const VbPublicKey* kernel_subkey,
+    const VbSignature* body_signature,
+    const VbPrivateKey* signing_key);
+
+
+/* Creates a kernel preamble, signed with [signing_key].
+ * Caller owns the returned pointer, and must free it with Free().
+ *
+ * Returns NULL if error. */
+VbKernelPreambleHeader* CreateKernelPreamble(
+    uint64_t kernel_version,
+    uint64_t body_load_address,
+    uint64_t bootloader_address,
+    uint64_t bootloader_size,
+    const VbSignature* body_signature,
+    const VbPrivateKey* signing_key);
+
+#endif  /* VBOOT_REFERENCE_HOST_COMMON_H_ */