mirror of https://review.coreboot.org/fsp.git
Add SplitFspBin.py
Copied from edk2/IntelFsp2Pkg/Tools/SplitFspBin.py This copy is intended to provide convinence. Now one does not need to clone edk2 just for this file. No delta between this copy and upstream is intended. Please submit patches for this file to tianocore. Signed-off-by: Nate DeSimone <nathaniel.l.desimone@intel.com>
This commit is contained in:
Nate DeSimone
parent
0c80d1d172
commit
162719b6cb
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@ -0,0 +1,853 @@
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## @ FspTool.py
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#
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# Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>
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# This program and the accompanying materials are licensed and made available under
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# the terms and conditions of the BSD License that accompanies this distribution.
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# The full text of the license may be found at
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# http://opensource.org/licenses/bsd-license.php.
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#
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# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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#
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##
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import os
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import sys
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import uuid
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import copy
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import struct
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import argparse
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from ctypes import *
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"""
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This utility supports some operations for Intel FSP 2.0 image.
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It supports:
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- Display FSP 2.0 information header
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- Split FSP 2.0 image into individual FSP-T/M/S/O component
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- Rebase FSP 2.0 components to a different base address
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- Generate FSP mapping C header file
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"""
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CopyRightHeaderFile = """/*
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*
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* Automatically generated file; DO NOT EDIT.
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* FSP mapping file
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*
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*/
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"""
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class c_uint24(Structure):
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"""Little-Endian 24-bit Unsigned Integer"""
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_pack_ = 1
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_fields_ = [('Data', (c_uint8 * 3))]
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def __init__(self, val=0):
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self.set_value(val)
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def __str__(self, indent=0):
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return '0x%.6x' % self.value
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def __int__(self):
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return self.get_value()
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def set_value(self, val):
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self.Data[0:3] = Val2Bytes(val, 3)
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def get_value(self):
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return Bytes2Val(self.Data[0:3])
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value = property(get_value, set_value)
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class EFI_FIRMWARE_VOLUME_HEADER(Structure):
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_fields_ = [
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('ZeroVector', ARRAY(c_uint8, 16)),
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('FileSystemGuid', ARRAY(c_uint8, 16)),
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('FvLength', c_uint64),
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('Signature', ARRAY(c_char, 4)),
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('Attributes', c_uint32),
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('HeaderLength', c_uint16),
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('Checksum', c_uint16),
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('ExtHeaderOffset', c_uint16),
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('Reserved', c_uint8),
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('Revision', c_uint8)
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]
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class EFI_FIRMWARE_VOLUME_EXT_HEADER(Structure):
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_fields_ = [
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('FvName', ARRAY(c_uint8, 16)),
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('ExtHeaderSize', c_uint32)
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]
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class EFI_FFS_INTEGRITY_CHECK(Structure):
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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_FILE_HEADER(Structure):
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_fields_ = [
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('Name', ARRAY(c_uint8, 16)),
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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', c_uint24),
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('State', c_uint8)
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]
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class EFI_COMMON_SECTION_HEADER(Structure):
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_fields_ = [
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('Size', c_uint24),
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('Type', c_uint8)
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]
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class FSP_COMMON_HEADER(Structure):
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_fields_ = [
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('Signature', ARRAY(c_char, 4)),
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('HeaderLength', c_uint32)
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]
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class FSP_INFORMATION_HEADER(Structure):
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_fields_ = [
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('Signature', ARRAY(c_char, 4)),
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('HeaderLength', c_uint32),
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('Reserved1', c_uint16),
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('SpecVersion', c_uint8),
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('HeaderRevision', c_uint8),
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('ImageRevision', c_uint32),
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('ImageId', ARRAY(c_char, 8)),
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('ImageSize', c_uint32),
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('ImageBase', c_uint32),
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('ImageAttribute', c_uint16),
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('ComponentAttribute', c_uint16),
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('CfgRegionOffset', c_uint32),
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('CfgRegionSize', c_uint32),
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('Reserved2', c_uint32),
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('TempRamInitEntryOffset', c_uint32),
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('Reserved3', c_uint32),
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('NotifyPhaseEntryOffset', c_uint32),
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('FspMemoryInitEntryOffset', c_uint32),
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('TempRamExitEntryOffset', c_uint32),
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('FspSiliconInitEntryOffset', c_uint32)
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]
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class FSP_PATCH_TABLE(Structure):
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_fields_ = [
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('Signature', ARRAY(c_char, 4)),
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('HeaderLength', c_uint16),
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('HeaderRevision', c_uint8),
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('Reserved', c_uint8),
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('PatchEntryNum', c_uint32)
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]
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class EFI_IMAGE_DATA_DIRECTORY(Structure):
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_fields_ = [
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('VirtualAddress', c_uint32),
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('Size', c_uint32)
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]
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class EFI_TE_IMAGE_HEADER(Structure):
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_fields_ = [
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('Signature', ARRAY(c_char, 2)),
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('Machine', c_uint16),
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('NumberOfSections', c_uint8),
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('Subsystem', c_uint8),
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('StrippedSize', c_uint16),
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('AddressOfEntryPoint', c_uint32),
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('BaseOfCode', c_uint32),
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('ImageBase', c_uint64),
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('DataDirectoryBaseReloc', EFI_IMAGE_DATA_DIRECTORY),
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('DataDirectoryDebug', EFI_IMAGE_DATA_DIRECTORY)
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]
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class EFI_IMAGE_DOS_HEADER(Structure):
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_fields_ = [
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('e_magic', c_uint16),
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('e_cblp', c_uint16),
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('e_cp', c_uint16),
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('e_crlc', c_uint16),
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('e_cparhdr', c_uint16),
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('e_minalloc', c_uint16),
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('e_maxalloc', c_uint16),
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('e_ss', c_uint16),
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('e_sp', c_uint16),
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('e_csum', c_uint16),
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('e_ip', c_uint16),
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('e_cs', c_uint16),
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('e_lfarlc', c_uint16),
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('e_ovno', c_uint16),
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('e_res', ARRAY(c_uint16, 4)),
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('e_oemid', c_uint16),
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('e_oeminfo', c_uint16),
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('e_res2', ARRAY(c_uint16, 10)),
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('e_lfanew', c_uint16)
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]
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class EFI_IMAGE_FILE_HEADER(Structure):
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_fields_ = [
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('Machine', c_uint16),
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('NumberOfSections', c_uint16),
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('TimeDateStamp', c_uint32),
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('PointerToSymbolTable', c_uint32),
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('NumberOfSymbols', c_uint32),
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('SizeOfOptionalHeader', c_uint16),
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('Characteristics', c_uint16)
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]
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class PE_RELOC_BLOCK_HEADER(Structure):
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_fields_ = [
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('PageRVA', c_uint32),
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('BlockSize', c_uint32)
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]
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class EFI_IMAGE_OPTIONAL_HEADER32(Structure):
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_fields_ = [
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('Magic', c_uint16),
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('MajorLinkerVersion', c_uint8),
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('MinorLinkerVersion', c_uint8),
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('SizeOfCode', c_uint32),
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('SizeOfInitializedData', c_uint32),
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('SizeOfUninitializedData', c_uint32),
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('AddressOfEntryPoint', c_uint32),
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('BaseOfCode', c_uint32),
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('BaseOfData', c_uint32),
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('ImageBase', c_uint32),
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('SectionAlignment', c_uint32),
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('FileAlignment', c_uint32),
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('MajorOperatingSystemVersion', c_uint16),
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('MinorOperatingSystemVersion', c_uint16),
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('MajorImageVersion', c_uint16),
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('MinorImageVersion', c_uint16),
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('MajorSubsystemVersion', c_uint16),
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('MinorSubsystemVersion', c_uint16),
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('Win32VersionValue', c_uint32),
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('SizeOfImage', c_uint32),
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('SizeOfHeaders', c_uint32),
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('CheckSum' , c_uint32),
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('Subsystem', c_uint16),
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('DllCharacteristics', c_uint16),
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('SizeOfStackReserve', c_uint32),
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('SizeOfStackCommit' , c_uint32),
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('SizeOfHeapReserve', c_uint32),
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('SizeOfHeapCommit' , c_uint32),
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('LoaderFlags' , c_uint32),
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('NumberOfRvaAndSizes', c_uint32),
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('DataDirectory', ARRAY(EFI_IMAGE_DATA_DIRECTORY, 16))
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]
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class EFI_IMAGE_OPTIONAL_HEADER32_PLUS(Structure):
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_fields_ = [
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('Magic', c_uint16),
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('MajorLinkerVersion', c_uint8),
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('MinorLinkerVersion', c_uint8),
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('SizeOfCode', c_uint32),
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('SizeOfInitializedData', c_uint32),
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('SizeOfUninitializedData', c_uint32),
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('AddressOfEntryPoint', c_uint32),
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('BaseOfCode', c_uint32),
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('ImageBase', c_uint64),
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('SectionAlignment', c_uint32),
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('FileAlignment', c_uint32),
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('MajorOperatingSystemVersion', c_uint16),
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('MinorOperatingSystemVersion', c_uint16),
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('MajorImageVersion', c_uint16),
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('MinorImageVersion', c_uint16),
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('MajorSubsystemVersion', c_uint16),
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('MinorSubsystemVersion', c_uint16),
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('Win32VersionValue', c_uint32),
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('SizeOfImage', c_uint32),
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('SizeOfHeaders', c_uint32),
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('CheckSum' , c_uint32),
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('Subsystem', c_uint16),
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('DllCharacteristics', c_uint16),
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('SizeOfStackReserve', c_uint64),
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('SizeOfStackCommit' , c_uint64),
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('SizeOfHeapReserve', c_uint64),
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('SizeOfHeapCommit' , c_uint64),
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('LoaderFlags' , c_uint32),
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('NumberOfRvaAndSizes', c_uint32),
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('DataDirectory', ARRAY(EFI_IMAGE_DATA_DIRECTORY, 16))
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]
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class EFI_IMAGE_OPTIONAL_HEADER(Union):
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_fields_ = [
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('PeOptHdr', EFI_IMAGE_OPTIONAL_HEADER32),
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('PePlusOptHdr', EFI_IMAGE_OPTIONAL_HEADER32_PLUS)
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]
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class EFI_IMAGE_NT_HEADERS32(Structure):
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_fields_ = [
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('Signature', c_uint32),
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('FileHeader', EFI_IMAGE_FILE_HEADER),
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('OptionalHeader', EFI_IMAGE_OPTIONAL_HEADER)
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]
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class EFI_IMAGE_DIRECTORY_ENTRY:
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EXPORT = 0
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IMPORT = 1
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RESOURCE = 2
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EXCEPTION = 3
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SECURITY = 4
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BASERELOC = 5
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DEBUG = 6
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COPYRIGHT = 7
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GLOBALPTR = 8
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TLS = 9
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LOAD_CONFIG = 10
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class EFI_FV_FILETYPE:
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ALL = 0x00
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RAW = 0x01
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FREEFORM = 0x02
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SECURITY_CORE = 0x03
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PEI_CORE = 0x04
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DXE_CORE = 0x05
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PEIM = 0x06
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DRIVER = 0x07
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COMBINED_PEIM_DRIVER = 0x08
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APPLICATION = 0x09
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SMM = 0x0a
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FIRMWARE_VOLUME_IMAGE = 0x0b
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COMBINED_SMM_DXE = 0x0c
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SMM_CORE = 0x0d
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OEM_MIN = 0xc0
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OEM_MAX = 0xdf
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DEBUG_MIN = 0xe0
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DEBUG_MAX = 0xef
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FFS_MIN = 0xf0
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FFS_MAX = 0xff
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FFS_PAD = 0xf0
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class EFI_SECTION_TYPE:
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"""Enumeration of all valid firmware file section types."""
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ALL = 0x00
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COMPRESSION = 0x01
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GUID_DEFINED = 0x02
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DISPOSABLE = 0x03
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PE32 = 0x10
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PIC = 0x11
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TE = 0x12
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DXE_DEPEX = 0x13
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VERSION = 0x14
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USER_INTERFACE = 0x15
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COMPATIBILITY16 = 0x16
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FIRMWARE_VOLUME_IMAGE = 0x17
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FREEFORM_SUBTYPE_GUID = 0x18
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RAW = 0x19
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PEI_DEPEX = 0x1b
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SMM_DEPEX = 0x1c
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def AlignPtr (offset, alignment = 8):
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return (offset + alignment - 1) & ~(alignment - 1)
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def Bytes2Val (bytes):
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return reduce(lambda x,y: (x<<8)|y, bytes[::-1] )
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def Val2Bytes (value, blen):
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return [(value>>(i*8) & 0xff) for i in range(blen)]
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def OutputStruct (obj, indent = 0, plen = 0):
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if indent:
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body = ''
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else:
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body = (' ' * indent + '<%s>:\n') % obj.__class__.__name__
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if plen == 0:
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plen = sizeof(obj)
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max_key_len = 26
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pstr = (' ' * (indent + 1) + '{0:<%d} = {1}\n') % max_key_len
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for field in obj._fields_:
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key = field[0]
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val = getattr(obj, key)
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rep = ''
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if not isinstance(val, c_uint24) and isinstance(val, Structure):
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body += pstr.format(key, val.__class__.__name__)
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body += OutputStruct (val, indent + 1)
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plen -= sizeof(val)
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else:
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if type(val) is str:
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rep = "0x%X ('%s')" % (Bytes2Val(bytearray(val)), val)
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elif type(val) in (int, long):
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rep = '0x%X' % val
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elif isinstance(val, c_uint24):
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rep = '0x%X' % val.get_value()
|
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elif 'c_ubyte_Array' in str(type(val)):
|
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if sizeof(val) == 16:
|
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rep = str(uuid.UUID(bytes = str(bytearray(val)))).upper()
|
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else:
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res = ['0x%02X'%i for i in bytearray(val)]
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rep = '[%s]' % (','.join(res))
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else:
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rep = str(val)
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plen -= sizeof(field[1])
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body += pstr.format(key, rep)
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if plen <= 0:
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break
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return body
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class Section:
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def __init__(self, offset, secdata):
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self.SecHdr = EFI_COMMON_SECTION_HEADER.from_buffer (secdata, 0)
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self.SecData = secdata[0:int(self.SecHdr.Size)]
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self.Offset = offset
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class FirmwareFile:
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def __init__(self, offset, filedata):
|
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self.FfsHdr = EFI_FFS_FILE_HEADER.from_buffer (filedata, 0)
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self.FfsData = filedata[0:int(self.FfsHdr.Size)]
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self.Offset = offset
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self.SecList = []
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|
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def ParseFfs(self):
|
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ffssize = len(self.FfsData)
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offset = sizeof(self.FfsHdr)
|
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if self.FfsHdr.Name != '\xff' * 16:
|
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while offset < ffssize:
|
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sechdr = EFI_COMMON_SECTION_HEADER.from_buffer (self.FfsData, offset)
|
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sec = Section (offset, self.FfsData[offset:offset + int(sechdr.Size)])
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self.SecList.append(sec)
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offset += int(sechdr.Size)
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offset = AlignPtr(offset, 4)
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|
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class FirmwareVolume:
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def __init__(self, offset, fvdata):
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self.FvHdr = EFI_FIRMWARE_VOLUME_HEADER.from_buffer (fvdata, 0)
|
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self.FvData = fvdata[0 : self.FvHdr.FvLength]
|
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self.Offset = offset
|
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if self.FvHdr.ExtHeaderOffset > 0:
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self.FvExtHdr = EFI_FIRMWARE_VOLUME_EXT_HEADER.from_buffer (self.FvData, self.FvHdr.ExtHeaderOffset)
|
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else:
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self.FvExtHdr = None
|
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self.FfsList = []
|
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|
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def ParseFv(self):
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fvsize = len(self.FvData)
|
||||
if self.FvExtHdr:
|
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offset = self.FvHdr.ExtHeaderOffset + self.FvExtHdr.ExtHeaderSize
|
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else:
|
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offset = self.FvHdr.HeaderLength
|
||||
offset = AlignPtr(offset)
|
||||
while offset < fvsize:
|
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ffshdr = EFI_FFS_FILE_HEADER.from_buffer (self.FvData, offset)
|
||||
if (ffshdr.Name == '\xff' * 16) and (int(ffshdr.Size) == 0xFFFFFF):
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offset = fvsize
|
||||
else:
|
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ffs = FirmwareFile (offset, self.FvData[offset:offset + int(ffshdr.Size)])
|
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ffs.ParseFfs()
|
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self.FfsList.append(ffs)
|
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offset += int(ffshdr.Size)
|
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offset = AlignPtr(offset)
|
||||
|
||||
class FspImage:
|
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def __init__(self, offset, fih, fihoff, patch):
|
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self.Fih = fih
|
||||
self.FihOffset = fihoff
|
||||
self.Offset = offset
|
||||
self.FvIdxList = []
|
||||
self.Type = "XTMSXXXXOXXXXXXX"[(fih.ComponentAttribute >> 12) & 0x0F]
|
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self.PatchList = patch
|
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self.PatchList.append(fihoff + 0x1C)
|
||||
|
||||
def AppendFv(self, FvIdx):
|
||||
self.FvIdxList.append(FvIdx)
|
||||
|
||||
def Patch(self, delta, fdbin):
|
||||
count = 0
|
||||
applied = 0
|
||||
for idx, patch in enumerate(self.PatchList):
|
||||
ptype = (patch>>24) & 0x0F
|
||||
if ptype not in [0x00, 0x0F]:
|
||||
raise Exception('ERROR: Invalid patch type %d !' % ptype)
|
||||
if patch & 0x80000000:
|
||||
patch = self.Fih.ImageSize - (0x1000000 - (patch & 0xFFFFFF))
|
||||
else:
|
||||
patch = patch & 0xFFFFFF
|
||||
if (patch < self.Fih.ImageSize) and (patch + sizeof(c_uint32) <= self.Fih.ImageSize):
|
||||
offset = patch + self.Offset
|
||||
value = Bytes2Val(fdbin[offset:offset+sizeof(c_uint32)])
|
||||
value += delta
|
||||
fdbin[offset:offset+sizeof(c_uint32)] = Val2Bytes(value, sizeof(c_uint32))
|
||||
applied += 1
|
||||
count += 1
|
||||
# Don't count the FSP base address patch entry appended at the end
|
||||
if count != 0:
|
||||
count -= 1
|
||||
applied -= 1
|
||||
return (count, applied)
|
||||
|
||||
class FirmwareDevice:
|
||||
def __init__(self, offset, fdfile):
|
||||
self.FvList = []
|
||||
self.FspList = []
|
||||
self.FdFile = fdfile
|
||||
self.Offset = 0
|
||||
hfsp = open (self.FdFile, 'rb')
|
||||
self.FdData = bytearray(hfsp.read())
|
||||
hfsp.close()
|
||||
|
||||
def ParseFd(self):
|
||||
offset = 0
|
||||
fdsize = len(self.FdData)
|
||||
self.FvList = []
|
||||
while offset < fdsize:
|
||||
fvh = EFI_FIRMWARE_VOLUME_HEADER.from_buffer (self.FdData, offset)
|
||||
if '_FVH' != fvh.Signature:
|
||||
raise Exception("ERROR: Invalid FV header !")
|
||||
fv = FirmwareVolume (offset, self.FdData[offset:offset + fvh.FvLength])
|
||||
fv.ParseFv ()
|
||||
self.FvList.append(fv)
|
||||
offset += fv.FvHdr.FvLength
|
||||
|
||||
def CheckFsp (self):
|
||||
if len(self.FspList) == 0:
|
||||
return
|
||||
|
||||
fih = None
|
||||
for fsp in self.FspList:
|
||||
if fsp.Fih.HeaderRevision < 3:
|
||||
raise Exception("ERROR: FSP 1.x is not supported by this tool !")
|
||||
if not fih:
|
||||
fih = fsp.Fih
|
||||
else:
|
||||
newfih = fsp.Fih
|
||||
if (newfih.ImageId != fih.ImageId) or (newfih.ImageRevision != fih.ImageRevision):
|
||||
raise Exception("ERROR: Inconsistent FSP ImageId or ImageRevision detected !")
|
||||
|
||||
def ParseFsp(self):
|
||||
flen = 0
|
||||
for idx, fv in enumerate(self.FvList):
|
||||
# Check if this FV contains FSP header
|
||||
if flen == 0:
|
||||
if len(fv.FfsList) == 0:
|
||||
continue
|
||||
ffs = fv.FfsList[0]
|
||||
if len(ffs.SecList) == 0:
|
||||
continue
|
||||
sec = ffs.SecList[0]
|
||||
if sec.SecHdr.Type != EFI_SECTION_TYPE.RAW:
|
||||
continue
|
||||
fihoffset = ffs.Offset + sec.Offset + sizeof(sec.SecHdr)
|
||||
fspoffset = fv.Offset
|
||||
offset = fspoffset + fihoffset
|
||||
fih = FSP_INFORMATION_HEADER.from_buffer (self.FdData, offset)
|
||||
if 'FSPH' != fih.Signature:
|
||||
continue
|
||||
|
||||
offset += fih.HeaderLength
|
||||
offset = AlignPtr(offset, 4)
|
||||
plist = []
|
||||
while True:
|
||||
fch = FSP_COMMON_HEADER.from_buffer (self.FdData, offset)
|
||||
if 'FSPP' != fch.Signature:
|
||||
offset += fch.HeaderLength
|
||||
offset = AlignPtr(offset, 4)
|
||||
else:
|
||||
fspp = FSP_PATCH_TABLE.from_buffer (self.FdData, offset)
|
||||
offset += sizeof(fspp)
|
||||
pdata = (c_uint32 * fspp.PatchEntryNum).from_buffer(self.FdData, offset)
|
||||
plist = list(pdata)
|
||||
break
|
||||
|
||||
fsp = FspImage (fspoffset, fih, fihoffset, plist)
|
||||
fsp.AppendFv (idx)
|
||||
self.FspList.append(fsp)
|
||||
flen = fsp.Fih.ImageSize - fv.FvHdr.FvLength
|
||||
else:
|
||||
fsp.AppendFv (idx)
|
||||
flen -= fv.FvHdr.FvLength
|
||||
if flen < 0:
|
||||
raise Exception("ERROR: Incorrect FV size in image !")
|
||||
self.CheckFsp ()
|
||||
|
||||
class PeTeImage:
|
||||
def __init__(self, offset, data):
|
||||
self.Offset = offset
|
||||
tehdr = EFI_TE_IMAGE_HEADER.from_buffer (data, 0)
|
||||
if tehdr.Signature == 'VZ': # TE image
|
||||
self.TeHdr = tehdr
|
||||
elif tehdr.Signature == 'MZ': # PE image
|
||||
self.TeHdr = None
|
||||
self.DosHdr = EFI_IMAGE_DOS_HEADER.from_buffer (data, 0)
|
||||
self.PeHdr = EFI_IMAGE_NT_HEADERS32.from_buffer (data, self.DosHdr.e_lfanew)
|
||||
if self.PeHdr.Signature != 0x4550:
|
||||
raise Exception("ERROR: Invalid PE32 header !")
|
||||
if self.PeHdr.OptionalHeader.PeOptHdr.Magic == 0x10b: # PE32 image
|
||||
if self.PeHdr.FileHeader.SizeOfOptionalHeader < EFI_IMAGE_OPTIONAL_HEADER32.DataDirectory.offset:
|
||||
raise Exception("ERROR: Unsupported PE32 image !")
|
||||
if self.PeHdr.OptionalHeader.PeOptHdr.NumberOfRvaAndSizes <= EFI_IMAGE_DIRECTORY_ENTRY.BASERELOC:
|
||||
raise Exception("ERROR: No relocation information available !")
|
||||
elif self.PeHdr.OptionalHeader.PeOptHdr.Magic == 0x20b: # PE32+ image
|
||||
if self.PeHdr.FileHeader.SizeOfOptionalHeader < EFI_IMAGE_OPTIONAL_HEADER32_PLUS.DataDirectory.offset:
|
||||
raise Exception("ERROR: Unsupported PE32+ image !")
|
||||
if self.PeHdr.OptionalHeader.PePlusOptHdr.NumberOfRvaAndSizes <= EFI_IMAGE_DIRECTORY_ENTRY.BASERELOC:
|
||||
raise Exception("ERROR: No relocation information available !")
|
||||
else:
|
||||
raise Exception("ERROR: Invalid PE32 optional header !")
|
||||
self.Offset = offset
|
||||
self.Data = data
|
||||
self.RelocList = []
|
||||
|
||||
def IsTeImage(self):
|
||||
return self.TeHdr is not None
|
||||
|
||||
def ParseReloc(self):
|
||||
if self.IsTeImage():
|
||||
rsize = self.TeHdr.DataDirectoryBaseReloc.Size
|
||||
roffset = sizeof(self.TeHdr) - self.TeHdr.StrippedSize + self.TeHdr.DataDirectoryBaseReloc.VirtualAddress
|
||||
else:
|
||||
if self.PeHdr.OptionalHeader.PeOptHdr.Magic == 0x10b: # PE32 image
|
||||
rsize = self.PeHdr.OptionalHeader.PeOptHdr.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY.BASERELOC].Size
|
||||
roffset = self.PeHdr.OptionalHeader.PeOptHdr.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY.BASERELOC].VirtualAddress
|
||||
if self.PeHdr.OptionalHeader.PeOptHdr.Magic == 0x20b: # PE32+ image
|
||||
rsize = self.PeHdr.OptionalHeader.PePlusOptHdr.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY.BASERELOC].Size
|
||||
roffset = self.PeHdr.OptionalHeader.PePlusOptHdr.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY.BASERELOC].VirtualAddress
|
||||
|
||||
alignment = 4
|
||||
offset = roffset
|
||||
while offset < roffset + rsize:
|
||||
offset = AlignPtr(offset, 4)
|
||||
blkhdr = PE_RELOC_BLOCK_HEADER.from_buffer(self.Data, offset)
|
||||
offset += sizeof(blkhdr)
|
||||
# Read relocation type,offset pairs
|
||||
rlen = blkhdr.BlockSize - sizeof(PE_RELOC_BLOCK_HEADER)
|
||||
rnum = rlen/sizeof(c_uint16)
|
||||
rdata = (c_uint16 * rnum).from_buffer(self.Data, offset)
|
||||
for each in rdata:
|
||||
roff = each & 0xfff
|
||||
rtype = each >> 12
|
||||
if rtype == 0: # IMAGE_REL_BASED_ABSOLUTE:
|
||||
continue
|
||||
if ((rtype != 3) and (rtype != 10)): # IMAGE_REL_BASED_HIGHLOW and IMAGE_REL_BASED_DIR64
|
||||
raise Exception("ERROR: Unsupported relocation type %d!" % rtype)
|
||||
# Calculate the offset of the relocation
|
||||
aoff = blkhdr.PageRVA + roff
|
||||
if self.IsTeImage():
|
||||
aoff += sizeof(self.TeHdr) - self.TeHdr.StrippedSize
|
||||
self.RelocList.append((rtype, aoff))
|
||||
offset += sizeof(rdata)
|
||||
|
||||
def Rebase(self, delta, fdbin):
|
||||
count = 0
|
||||
if delta == 0:
|
||||
return count
|
||||
|
||||
for (rtype, roff) in self.RelocList:
|
||||
if rtype == 3: # IMAGE_REL_BASED_HIGHLOW
|
||||
offset = roff + self.Offset
|
||||
value = Bytes2Val(fdbin[offset:offset+sizeof(c_uint32)])
|
||||
value += delta
|
||||
fdbin[offset:offset+sizeof(c_uint32)] = Val2Bytes(value, sizeof(c_uint32))
|
||||
count += 1
|
||||
elif rtype == 10: # IMAGE_REL_BASED_DIR64
|
||||
offset = roff + self.Offset
|
||||
value = Bytes2Val(fdbin[offset:offset+sizeof(c_uint64)])
|
||||
value += delta
|
||||
fdbin[offset:offset+sizeof(c_uint64)] = Val2Bytes(value, sizeof(c_uint64))
|
||||
count += 1
|
||||
else:
|
||||
raise Exception('ERROR: Unknown relocation type %d !' % rtype)
|
||||
|
||||
if self.IsTeImage():
|
||||
offset = self.Offset + EFI_TE_IMAGE_HEADER.ImageBase.offset
|
||||
size = EFI_TE_IMAGE_HEADER.ImageBase.size
|
||||
else:
|
||||
offset = self.Offset + self.DosHdr.e_lfanew
|
||||
offset += EFI_IMAGE_NT_HEADERS32.OptionalHeader.offset
|
||||
offset += EFI_IMAGE_OPTIONAL_HEADER32.ImageBase.offset
|
||||
size = EFI_IMAGE_OPTIONAL_HEADER32.ImageBase.size
|
||||
|
||||
value = Bytes2Val(fdbin[offset:offset+size]) + delta
|
||||
fdbin[offset:offset+size] = Val2Bytes(value, size)
|
||||
|
||||
return count
|
||||
|
||||
def ShowFspInfo (fspfile):
|
||||
fd = FirmwareDevice(0, fspfile)
|
||||
fd.ParseFd ()
|
||||
fd.ParseFsp ()
|
||||
|
||||
print ("\nFound the following %d Firmware Volumes in FSP binary:" % (len(fd.FvList)))
|
||||
for idx, fv in enumerate(fd.FvList):
|
||||
name = fv.FvExtHdr.FvName
|
||||
if not name:
|
||||
name = '\xff' * 16
|
||||
else:
|
||||
name = str(bytearray(name))
|
||||
guid = uuid.UUID(bytes = name)
|
||||
print ("FV%d:" % idx)
|
||||
print (" GUID : %s" % str(guid).upper())
|
||||
print (" Offset : 0x%08X" % fv.Offset)
|
||||
print (" Length : 0x%08X" % fv.FvHdr.FvLength)
|
||||
print ("\n")
|
||||
|
||||
for fsp in fd.FspList:
|
||||
fvlist = map(lambda x : 'FV%d' % x, fsp.FvIdxList)
|
||||
print ("FSP_%s contains %s" % (fsp.Type, ','.join(fvlist)))
|
||||
print ("%s" % (OutputStruct(fsp.Fih, 0, fsp.Fih.HeaderLength)))
|
||||
|
||||
def GenFspHdr (fspfile, outdir, hfile):
|
||||
fd = FirmwareDevice(0, fspfile)
|
||||
fd.ParseFd ()
|
||||
fd.ParseFsp ()
|
||||
|
||||
if not hfile:
|
||||
hfile = os.path.splitext(os.path.basename(fspfile))[0] + '.h'
|
||||
fspname, ext = os.path.splitext(os.path.basename(hfile))
|
||||
filename = os.path.join(outdir, fspname + ext)
|
||||
hfsp = open(filename, 'w')
|
||||
hfsp.write ('%s\n\n' % CopyRightHeaderFile)
|
||||
|
||||
firstfv = True
|
||||
for fsp in fd.FspList:
|
||||
fih = fsp.Fih
|
||||
if firstfv:
|
||||
hfsp.write("#define FSP_IMAGE_ID 0x%016X /* '%s' */\n" % (Bytes2Val(bytearray(fih.ImageId)), fih.ImageId))
|
||||
hfsp.write("#define FSP_IMAGE_REV 0x%08X \n\n" % fih.ImageRevision)
|
||||
firstfv = False
|
||||
fv = fd.FvList[fsp.FvIdxList[0]]
|
||||
hfsp.write ('#define FSP%s_BASE 0x%08X\n' % (fsp.Type, fih.ImageBase))
|
||||
hfsp.write ('#define FSP%s_OFFSET 0x%08X\n' % (fsp.Type, fv.Offset))
|
||||
hfsp.write ('#define FSP%s_LENGTH 0x%08X\n\n' % (fsp.Type, fih.ImageSize))
|
||||
|
||||
hfsp.close()
|
||||
|
||||
def SplitFspBin (fspfile, outdir, nametemplate):
|
||||
fd = FirmwareDevice(0, fspfile)
|
||||
fd.ParseFd ()
|
||||
fd.ParseFsp ()
|
||||
|
||||
for fsp in fd.FspList:
|
||||
ftype = fsp.Type
|
||||
if not nametemplate:
|
||||
nametemplate = fspfile
|
||||
fspname, ext = os.path.splitext(os.path.basename(nametemplate))
|
||||
filename = os.path.join(outdir, fspname + '_' + fsp.Type + ext)
|
||||
hfsp = open(filename, 'wb')
|
||||
print ("Create FSP component file '%s'" % filename)
|
||||
for fvidx in fsp.FvIdxList:
|
||||
fv = fd.FvList[fvidx]
|
||||
hfsp.write(fv.FvData)
|
||||
hfsp.close()
|
||||
|
||||
def RebaseFspBin (FspBinary, FspComponent, FspBase, OutputDir, OutputFile):
|
||||
fd = FirmwareDevice(0, FspBinary)
|
||||
fd.ParseFd ()
|
||||
fd.ParseFsp ()
|
||||
|
||||
numcomp = len(FspComponent)
|
||||
baselist = FspBase
|
||||
if numcomp != len(baselist):
|
||||
print "ERROR: Required number of base does not match number of FSP component !"
|
||||
return
|
||||
|
||||
newfspbin = fd.FdData[:]
|
||||
|
||||
for idx, fspcomp in enumerate(FspComponent):
|
||||
|
||||
found = False
|
||||
for fsp in fd.FspList:
|
||||
ftype = fsp.Type.lower()
|
||||
if ftype == fspcomp:
|
||||
found = True
|
||||
break
|
||||
|
||||
if not found:
|
||||
print "ERROR: Could not find FSP_%c component to rebase !" % fspcomp.upper()
|
||||
return
|
||||
|
||||
fspbase = baselist[idx]
|
||||
if fspbase.startswith('0x'):
|
||||
newbase = int(fspbase, 16)
|
||||
else:
|
||||
newbase = int(fspbase)
|
||||
oldbase = fsp.Fih.ImageBase
|
||||
delta = newbase - oldbase
|
||||
print "Rebase FSP-%c from 0x%08X to 0x%08X:" % (ftype.upper(),oldbase,newbase)
|
||||
|
||||
imglist = []
|
||||
for fvidx in fsp.FvIdxList:
|
||||
fv = fd.FvList[fvidx]
|
||||
for ffs in fv.FfsList:
|
||||
for sec in ffs.SecList:
|
||||
if sec.SecHdr.Type in [EFI_SECTION_TYPE.TE, EFI_SECTION_TYPE.PE32]: # TE or PE32
|
||||
offset = fd.Offset + fv.Offset + ffs.Offset + sec.Offset + sizeof(sec.SecHdr)
|
||||
imglist.append ((offset, len(sec.SecData) - sizeof(sec.SecHdr)))
|
||||
|
||||
fcount = 0
|
||||
pcount = 0
|
||||
for (offset, length) in imglist:
|
||||
img = PeTeImage(offset, fd.FdData[offset:offset + length])
|
||||
img.ParseReloc()
|
||||
pcount += img.Rebase(delta, newfspbin)
|
||||
fcount += 1
|
||||
|
||||
print " Patched %d entries in %d TE/PE32 images." % (pcount, fcount)
|
||||
|
||||
(count, applied) = fsp.Patch(delta, newfspbin)
|
||||
print " Patched %d entries using FSP patch table." % applied
|
||||
if count != applied:
|
||||
print " %d invalid entries are ignored !" % (count - applied)
|
||||
|
||||
if OutputFile == '':
|
||||
filename = os.path.basename(FspBinary)
|
||||
base, ext = os.path.splitext(filename)
|
||||
OutputFile = base + "_%08X" % newbase + ext
|
||||
|
||||
fspname, ext = os.path.splitext(os.path.basename(OutputFile))
|
||||
filename = os.path.join(OutputDir, fspname + ext)
|
||||
fd = open(filename, "wb")
|
||||
fd.write(newfspbin)
|
||||
fd.close()
|
||||
|
||||
def main ():
|
||||
parser = argparse.ArgumentParser()
|
||||
subparsers = parser.add_subparsers(title='commands')
|
||||
|
||||
parser_rebase = subparsers.add_parser('rebase', help='rebase a FSP into a new base address')
|
||||
parser_rebase.set_defaults(which='rebase')
|
||||
parser_rebase.add_argument('-f', '--fspbin' , dest='FspBinary', type=str, help='FSP binary file path', required = True)
|
||||
parser_rebase.add_argument('-c', '--fspcomp', choices=['t','m','s','o'], nargs='+', dest='FspComponent', type=str, help='FSP component to rebase', default = "['t']", required = True)
|
||||
parser_rebase.add_argument('-b', '--newbase', dest='FspBase', nargs='+', type=str, help='Rebased FSP binary file name', default = '', required = True)
|
||||
parser_rebase.add_argument('-o', '--outdir' , dest='OutputDir', type=str, help='Output directory path', default = '.')
|
||||
parser_rebase.add_argument('-n', '--outfile', dest='OutputFile', type=str, help='Rebased FSP binary file name', default = '')
|
||||
|
||||
parser_split = subparsers.add_parser('split', help='split a FSP into multiple components')
|
||||
parser_split.set_defaults(which='split')
|
||||
parser_split.add_argument('-f', '--fspbin' , dest='FspBinary', type=str, help='FSP binary file path', required = True)
|
||||
parser_split.add_argument('-o', '--outdir' , dest='OutputDir', type=str, help='Output directory path', default = '.')
|
||||
parser_split.add_argument('-n', '--nametpl', dest='NameTemplate', type=str, help='Output name template', default = '')
|
||||
|
||||
parser_genhdr = subparsers.add_parser('genhdr', help='generate a header file for FSP binary')
|
||||
parser_genhdr.set_defaults(which='genhdr')
|
||||
parser_genhdr.add_argument('-f', '--fspbin' , dest='FspBinary', type=str, help='FSP binary file path', required = True)
|
||||
parser_genhdr.add_argument('-o', '--outdir' , dest='OutputDir', type=str, help='Output directory path', default = '.')
|
||||
parser_genhdr.add_argument('-n', '--hfile', dest='HFileName', type=str, help='Output header file name', default = '')
|
||||
|
||||
parser_info = subparsers.add_parser('info', help='display FSP information')
|
||||
parser_info.set_defaults(which='info')
|
||||
parser_info.add_argument('-f', '--fspbin' , dest='FspBinary', type=str, help='FSP binary file path', required = True)
|
||||
|
||||
args = parser.parse_args()
|
||||
if args.which in ['rebase', 'split', 'genhdr', 'info']:
|
||||
if not os.path.exists(args.FspBinary):
|
||||
raise Exception ("ERROR: Could not locate FSP binary file '%s' !" % args.FspBinary)
|
||||
if hasattr(args, 'OutputDir') and not os.path.exists(args.OutputDir):
|
||||
raise Exception ("ERROR: Invalid output directory '%s' !" % args.OutputDir)
|
||||
|
||||
if args.which == 'rebase':
|
||||
RebaseFspBin (args.FspBinary, args.FspComponent, args.FspBase, args.OutputDir, args.OutputFile)
|
||||
elif args.which == 'split':
|
||||
SplitFspBin (args.FspBinary, args.OutputDir, args.NameTemplate)
|
||||
elif args.which == 'genhdr':
|
||||
GenFspHdr (args.FspBinary, args.OutputDir, args.HFileName)
|
||||
elif args.which == 'info':
|
||||
ShowFspInfo (args.FspBinary)
|
||||
else:
|
||||
pass
|
||||
|
||||
return 0
|
||||
|
||||
if __name__ == '__main__':
|
||||
sys.exit(main())
|
||||
Loading…
Reference in New Issue