Added gbb_utility (tool for Google Binary Block)

src/platform/vboot_reference/vboot_firmware/include/gbb_header.h

Index: src/platform/vboot_reference/vboot_firmware/include/gbb_header.h
diff --git a/src/platform/vboot_reference/vboot_firmware/include/gbb_header.h b/src/platform/vboot_reference/vboot_firmware/include/gbb_header.h
new file mode 100644
index 0000000000000000000000000000000000000000..d1f84a837aa9b08558b3db0691cf39eafab15626
--- /dev/null
+++ b/src/platform/vboot_reference/vboot_firmware/include/gbb_header.h
@@ -0,0 +1,47 @@
+/* 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.
+ *
+ * Data structure of Google Binary Block (GBB)
+ */
+
+#ifndef VBOOT_REFERENCE_GBB_HEADER_H_
+#define VBOOT_REFERENCE_GBB_HEADER_H_
+
+#include <stdint.h>
+
+#define GBB_HEADER_SIZE    (0x80)
+
+#define GBB_SIGNATURE      "$GBB"
+#define GBB_SIGNATURE_SIZE (4)
+
+#define GBB_MAJOR_VER      (0x01)
+#define GBB_MINOR_VER      (0x00)
+
+#ifdef __cplusplus
+extern "C" {
+#endif  // __cplusplus
+
+typedef struct GoogleBinaryBlockHeader {
+  uint8_t  signature[GBB_SIGNATURE_SIZE]; // GBB_SIGNATURE "$GBB"
+  uint16_t major_version;   // see GBB_MAJOR_VER
+  uint16_t minor_version;   // see GBB_MINOR_VER
+  uint32_t header_size;     // size of GBB header in bytes
+  uint32_t reserved;
+
+  uint32_t hwid_offset;     // HWID offset from header
+  uint32_t hwid_size;       // HWID size in bytes
+  uint32_t rootkey_offset;  // Root Key offset from header
+  uint32_t rootkey_size;    // Root Key size in bytes
+  uint32_t bmpfv_offset;    // BMP FV offset from header
+  uint32_t bmpfv_size;      // BMP FV size in bytes
+
+  uint8_t  pad[88];         // to match GBB_HEADER_SIZE
+} GoogleBinaryBlockHeader;
+
+#ifdef __cplusplus
+}
+#endif  // __cplusplus
+
+#endif  /* VBOOT_REFERENCE_GBB_HEADER_H_ */
+