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a64b944942
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>
88 lines
4.7 KiB
Python
88 lines
4.7 KiB
Python
## @file
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# This file is used to define the interface of Bios Parser.
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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 FirmwareStorageFormat.Common import *
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from core.BinaryFactoryProduct import ParserEntry
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from core.BiosTreeNode import *
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from core.BiosTree import *
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from core.GuidTools import *
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from utils.FmmtLogger import FmmtLogger as logger
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class FMMTParser:
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def __init__(self, name: str, TYPE: str) -> None:
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self.WholeFvTree = BIOSTREE(name)
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self.WholeFvTree.type = TYPE
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self.FinalData = b''
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self.BinaryInfo = []
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## Parser the nodes in WholeTree.
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def ParserFromRoot(self, WholeFvTree=None, whole_data: bytes=b'', Reloffset: int=0) -> None:
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if WholeFvTree.type == ROOT_TREE or WholeFvTree.type == ROOT_FV_TREE:
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ParserEntry().DataParser(self.WholeFvTree, whole_data, Reloffset)
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else:
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ParserEntry().DataParser(WholeFvTree, whole_data, Reloffset)
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for Child in WholeFvTree.Child:
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self.ParserFromRoot(Child, "")
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## Encapuslation all the data in tree into self.FinalData
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def Encapsulation(self, rootTree, CompressStatus: bool) -> None:
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# If current node is Root node, skip it.
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if rootTree.type == ROOT_TREE or rootTree.type == ROOT_FV_TREE or rootTree.type == ROOT_FFS_TREE or rootTree.type == ROOT_SECTION_TREE:
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logger.debug('Encapsulated successfully!')
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# If current node do not have Header, just add Data.
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elif rootTree.type == BINARY_DATA or rootTree.type == FFS_FREE_SPACE:
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self.FinalData += rootTree.Data.Data
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rootTree.Child = []
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# If current node do not have Child and ExtHeader, just add its Header and Data.
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elif rootTree.type == DATA_FV_TREE or rootTree.type == FFS_PAD:
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self.FinalData += struct2stream(rootTree.Data.Header) + rootTree.Data.Data + rootTree.Data.PadData
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if rootTree.isFinalChild():
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ParTree = rootTree.Parent
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if ParTree.type != 'ROOT':
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self.FinalData += ParTree.Data.PadData
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rootTree.Child = []
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# If current node is not Section node and may have Child and ExtHeader, add its Header,ExtHeader. If do not have Child, add its Data.
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elif rootTree.type == FV_TREE or rootTree.type == FFS_TREE or rootTree.type == SEC_FV_TREE:
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if rootTree.HasChild():
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self.FinalData += struct2stream(rootTree.Data.Header)
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else:
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self.FinalData += struct2stream(rootTree.Data.Header) + rootTree.Data.Data + rootTree.Data.PadData
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if rootTree.isFinalChild():
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ParTree = rootTree.Parent
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if ParTree.type != 'ROOT':
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self.FinalData += ParTree.Data.PadData
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# If current node is Section, need to consider its ExtHeader, Child and Compressed Status.
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elif rootTree.type == SECTION_TREE:
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# Not compressed section
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if rootTree.Data.OriData == b'' or (rootTree.Data.OriData != b'' and CompressStatus):
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if rootTree.HasChild():
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if rootTree.Data.ExtHeader:
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self.FinalData += struct2stream(rootTree.Data.Header) + struct2stream(rootTree.Data.ExtHeader)
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else:
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self.FinalData += struct2stream(rootTree.Data.Header)
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else:
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Data = rootTree.Data.Data
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if rootTree.Data.ExtHeader:
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self.FinalData += struct2stream(rootTree.Data.Header) + struct2stream(rootTree.Data.ExtHeader) + Data + rootTree.Data.PadData
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else:
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self.FinalData += struct2stream(rootTree.Data.Header) + Data + rootTree.Data.PadData
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if rootTree.isFinalChild():
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ParTree = rootTree.Parent
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self.FinalData += ParTree.Data.PadData
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# If compressed section
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else:
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Data = rootTree.Data.OriData
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rootTree.Child = []
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if rootTree.Data.ExtHeader:
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self.FinalData += struct2stream(rootTree.Data.Header) + struct2stream(rootTree.Data.ExtHeader) + Data + rootTree.Data.PadData
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else:
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self.FinalData += struct2stream(rootTree.Data.Header) + Data + rootTree.Data.PadData
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if rootTree.isFinalChild():
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ParTree = rootTree.Parent
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self.FinalData += ParTree.Data.PadData
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for Child in rootTree.Child:
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self.Encapsulation(Child, CompressStatus)
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