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The FMMT python tool is used for firmware files operation, which has the Fv/FFs-based 'View'&'Add'&'Delete'&'Replace' operation function: 1.Parse a FD(Firmware Device) / FV(Firmware Volume) / FFS(Firmware Files) 2.Add a new FFS into a FV file (both included in a FD file or not) 3.Replace an FFS in a FV file with a new FFS file 4.Delete an FFS in a FV file (both included in a FD file or not) 5.Extract the FFS from a FV file (both included in a FD file or not) This version of FMMT Python tool does not support PEIM rebase feature, this feature will be added in future update. Currently the FMMT C tool is saved in edk2-staging repo, but its quality and coding style can't meet the Edk2 quality, which is hard to maintain (Hard/Duplicate Code; Regression bugs; Restrict usage). The new Python version keeps same functions with origin C version. It has higher quality and better coding style, and it is much easier to extend new functions and to maintain. REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1847 RFC Link: https://edk2.groups.io/g/devel/message/82877 Staging Link: https://github.com/tianocore/edk2-staging/tree/PyFMMT Cc: Bob Feng <bob.c.feng@intel.com> Cc: Liming Gao <gaoliming@byosoft.com.cn> Signed-off-by: Yuwei Chen <yuwei.chen@intel.com> Reviewed-by: Bob Feng <bob.c.feng@intel.com> Acked-by: Liming Gao <gaoliming@byosoft.com.cn>
67 lines
1.8 KiB
Python
67 lines
1.8 KiB
Python
## @file
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# This file is used to define the Ffs Header C Struct.
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#
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# Copyright (c) 2021-, Intel Corporation. All rights reserved.<BR>
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# SPDX-License-Identifier: BSD-2-Clause-Patent
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##
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from struct import *
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from ctypes import *
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from FirmwareStorageFormat.Common import *
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EFI_FFS_FILE_HEADER_LEN = 24
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EFI_FFS_FILE_HEADER2_LEN = 32
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class CHECK_SUM(Structure):
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_pack_ = 1
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_fields_ = [
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('Header', c_uint8),
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('File', c_uint8),
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]
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class EFI_FFS_INTEGRITY_CHECK(Union):
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_pack_ = 1
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_fields_ = [
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('Checksum', CHECK_SUM),
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('Checksum16', c_uint16),
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]
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class EFI_FFS_FILE_HEADER(Structure):
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_pack_ = 1
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_fields_ = [
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('Name', GUID),
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('IntegrityCheck', EFI_FFS_INTEGRITY_CHECK),
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('Type', c_uint8),
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('Attributes', c_uint8),
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('Size', ARRAY(c_uint8, 3)),
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('State', c_uint8),
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]
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@property
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def FFS_FILE_SIZE(self) -> int:
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return self.Size[0] | self.Size[1] << 8 | self.Size[2] << 16
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@property
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def HeaderLength(self) -> int:
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return 24
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class EFI_FFS_FILE_HEADER2(Structure):
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_pack_ = 1
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_fields_ = [
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('Name', GUID),
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('IntegrityCheck', EFI_FFS_INTEGRITY_CHECK),
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('Type', c_uint8),
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('Attributes', c_uint8),
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('Size', ARRAY(c_uint8, 3)),
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('State', c_uint8),
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('ExtendedSize', c_uint64),
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]
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@property
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def FFS_FILE_SIZE(self) -> int:
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return self.ExtendedSize
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@property
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def HeaderLength(self) -> int:
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return 32
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