1 files changed, 66 insertions, 0 deletions
diff --git a/BaseTools/Source/Python/FirmwareStorageFormat/FfsFileHeader.py b/BaseTools/Source/Python/FirmwareStorageFormat/FfsFileHeader.py
new file mode 100644
index 0000000000..e9c619d224
--- /dev/null
+++ b/BaseTools/Source/Python/FirmwareStorageFormat/FfsFileHeader.py
@@ -0,0 +1,66 @@
+## @file
+# This file is used to define the Ffs Header C Struct.
+#
+# Copyright (c) 2021-, Intel Corporation. All rights reserved.<BR>
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+##
+from struct import *
+from ctypes import *
+from FirmwareStorageFormat.Common import *
+
+EFI_FFS_FILE_HEADER_LEN = 24
+EFI_FFS_FILE_HEADER2_LEN = 32
+
+class CHECK_SUM(Structure):
+    _pack_ = 1
+    _fields_ = [
+        ('Header',                   c_uint8),
+        ('File',                     c_uint8),
+    ]
+
+class EFI_FFS_INTEGRITY_CHECK(Union):
+    _pack_ = 1
+    _fields_ = [
+        ('Checksum',                 CHECK_SUM),
+        ('Checksum16',               c_uint16),
+    ]
+
+
+class EFI_FFS_FILE_HEADER(Structure):
+    _pack_ = 1
+    _fields_ = [
+        ('Name',                     GUID),
+        ('IntegrityCheck',           EFI_FFS_INTEGRITY_CHECK),
+        ('Type',                     c_uint8),
+        ('Attributes',               c_uint8),
+        ('Size',                     ARRAY(c_uint8, 3)),
+        ('State',                    c_uint8),
+    ]
+
+    @property
+    def FFS_FILE_SIZE(self) -> int:
+        return self.Size[0] | self.Size[1] << 8 | self.Size[2] << 16
+
+    @property
+    def HeaderLength(self) -> int:
+        return 24
+
+class EFI_FFS_FILE_HEADER2(Structure):
+    _pack_ = 1
+    _fields_ = [
+        ('Name',                     GUID),
+        ('IntegrityCheck',           EFI_FFS_INTEGRITY_CHECK),
+        ('Type',                     c_uint8),
+        ('Attributes',               c_uint8),
+        ('Size',                     ARRAY(c_uint8, 3)),
+        ('State',                    c_uint8),
+        ('ExtendedSize',             c_uint64),
+    ]
+
+    @property
+    def FFS_FILE_SIZE(self) -> int:
+        return self.ExtendedSize
+
+    @property
+    def HeaderLength(self) -> int:
+        return 32