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-rw-r--r--UefiPayloadPkg/Tools/ElfFv.py809
1 files changed, 809 insertions, 0 deletions
diff --git a/UefiPayloadPkg/Tools/ElfFv.py b/UefiPayloadPkg/Tools/ElfFv.py
new file mode 100644
index 0000000..a3d5bf0
--- /dev/null
+++ b/UefiPayloadPkg/Tools/ElfFv.py
@@ -0,0 +1,809 @@
+## @file
+# OBJCOPY parser, it's used to replace FV
+#
+# Copyright (c) 2023, Intel Corporation. All rights reserved.<BR>
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+##
+
+import argparse
+from ctypes import *
+import struct
+
+class ElfSectionHeader64:
+ def __init__(self, sh_name, sh_type, sh_flags, sh_addr, sh_offset, sh_size, sh_link, sh_info, sh_addralign, sh_entsize):
+ self.sh_name = sh_name
+ self.sh_type = sh_type
+ self.sh_flags = sh_flags
+ self.sh_addr = sh_addr
+ self.sh_offset = sh_offset
+ self.sh_size = sh_size
+ self.sh_link = sh_link
+ self.sh_info = sh_info
+ self.sh_addralign = sh_addralign
+ self.sh_entsize = sh_entsize
+
+ def pack(self):
+ return struct.pack('<IIQQQQIIQQ', self.sh_name, self.sh_type, self.sh_flags, self.sh_addr, self.sh_offset, self.sh_size, self.sh_link, self.sh_info, self.sh_addralign, self.sh_entsize)
+
+ @classmethod
+ def unpack(cls, data):
+ unpacked_data = struct.unpack('<IIQQQQIIQQ', data)
+ return cls(*unpacked_data)
+
+class ElfHeader64:
+ def __init__(self, data):
+ # Parse the ELF identification bytes
+ self.e_ident = struct.unpack('16s', data[:16])[0]
+ self.e_type = struct.unpack('H', data[16:18])[0]
+ self.e_machine = struct.unpack('H', data[18:20])[0]
+ self.e_version = struct.unpack('I', data[20:24])[0]
+ self.e_entry = struct.unpack('Q', data[24:32])[0]
+ self.e_phoff = struct.unpack('Q', data[32:40])[0]
+ self.e_shoff = struct.unpack('Q', data[40:48])[0]
+ self.e_flags = struct.unpack('I', data[48:52])[0]
+ self.e_ehsize = struct.unpack('H', data[52:54])[0]
+ self.e_phentsize = struct.unpack('H', data[54:56])[0]
+ self.e_phnum = struct.unpack('H', data[56:58])[0]
+ self.e_shentsize = struct.unpack('H', data[58:60])[0]
+ self.e_shnum = struct.unpack('H', data[60:62])[0]
+ self.e_shstrndx = struct.unpack('H', data[62:64])[0]
+
+ def pack(self):
+ # Pack the ELF header data into a binary string
+ data = b''
+ data += struct.pack('16s', self.e_ident)
+ data += struct.pack('H', self.e_type)
+ data += struct.pack('H', self.e_machine)
+ data += struct.pack('I', self.e_version)
+ data += struct.pack('Q', self.e_entry)
+ data += struct.pack('Q', self.e_phoff)
+ data += struct.pack('Q', self.e_shoff)
+ data += struct.pack('I', self.e_flags)
+ data += struct.pack('H', self.e_ehsize)
+ data += struct.pack('H', self.e_phentsize)
+ data += struct.pack('H', self.e_phnum)
+ data += struct.pack('H', self.e_shentsize)
+ data += struct.pack('H', self.e_shnum)
+ data += struct.pack('H', self.e_shstrndx)
+ return data
+
+class Elf64_Phdr:
+ def __init__(self, data):
+ self.p_type = struct.unpack("<L", data[0:4])[0]
+ self.p_flags = struct.unpack("<L", data[4:8])[0]
+ self.p_offset = struct.unpack("<Q", data[8:16])[0]
+ self.p_vaddr = struct.unpack("<Q", data[16:24])[0]
+ self.p_paddr = struct.unpack("<Q", data[24:32])[0]
+ self.p_filesz = struct.unpack("<Q", data[32:40])[0]
+ self.p_memsz = struct.unpack("<Q", data[40:48])[0]
+ self.p_align = struct.unpack("<Q", data[48:56])[0]
+
+ def pack(self):
+ # Pack the Program header table into a binary string
+ data = b''
+ data += struct.pack('<L', self.p_type)
+ data += struct.pack('<L', self.p_flags)
+ data += struct.pack('<Q', self.p_offset)
+ data += struct.pack('<Q', self.p_vaddr)
+ data += struct.pack('<Q', self.p_paddr)
+ data += struct.pack('<Q', self.p_filesz)
+ data += struct.pack('<Q', self.p_memsz)
+ data += struct.pack('<Q', self.p_align)
+ return data
+
+class ElfSectionHeader32:
+ def __init__(self, sh_name, sh_type, sh_flags, sh_addr, sh_offset, sh_size, sh_link, sh_info, sh_addralign, sh_entsize):
+ self.sh_name = sh_name
+ self.sh_type = sh_type
+ self.sh_flags = sh_flags
+ self.sh_addr = sh_addr
+ self.sh_offset = sh_offset
+ self.sh_size = sh_size
+ self.sh_link = sh_link
+ self.sh_info = sh_info
+ self.sh_addralign = sh_addralign
+ self.sh_entsize = sh_entsize
+
+ def pack(self):
+ return struct.pack('<IIIIIIIIII', self.sh_name, self.sh_type, self.sh_flags, self.sh_addr, self.sh_offset, self.sh_size, self.sh_link, self.sh_info, self.sh_addralign, self.sh_entsize)
+
+ @classmethod
+ def unpack(cls, data):
+ unpacked_data = struct.unpack('<IIIIIIIIII', data)
+ return cls(*unpacked_data)
+
+class ElfHeader32:
+ def __init__(self, data):
+ # Parse the ELF identification bytes
+ self.e_ident = struct.unpack('16s', data[:16])[0]
+ self.e_type = struct.unpack('H', data[16:18])[0]
+ self.e_machine = struct.unpack('H', data[18:20])[0]
+ self.e_version = struct.unpack('I', data[20:24])[0]
+ self.e_entry = struct.unpack('I', data[24:28])[0]
+ self.e_phoff = struct.unpack('I', data[28:32])[0]
+ self.e_shoff = struct.unpack('I', data[32:36])[0]
+ self.e_flags = struct.unpack('I', data[36:40])[0]
+ self.e_ehsize = struct.unpack('H', data[40:42])[0]
+ self.e_phentsize = struct.unpack('H', data[42:44])[0]
+ self.e_phnum = struct.unpack('H', data[44:46])[0]
+ self.e_shentsize = struct.unpack('H', data[46:48])[0]
+ self.e_shnum = struct.unpack('H', data[48:50])[0]
+ self.e_shstrndx = struct.unpack('H', data[50:52])[0]
+
+ def pack(self):
+ # Pack the ELF header data into a binary string
+ data = b''
+ data += struct.pack('16s', self.e_ident)
+ data += struct.pack('H', self.e_type)
+ data += struct.pack('H', self.e_machine)
+ data += struct.pack('I', self.e_version)
+ data += struct.pack('I', self.e_entry)
+ data += struct.pack('I', self.e_phoff)
+ data += struct.pack('I', self.e_shoff)
+ data += struct.pack('I', self.e_flags)
+ data += struct.pack('H', self.e_ehsize)
+ data += struct.pack('H', self.e_phentsize)
+ data += struct.pack('H', self.e_phnum)
+ data += struct.pack('H', self.e_shentsize)
+ data += struct.pack('H', self.e_shnum)
+ data += struct.pack('H', self.e_shstrndx)
+ return data
+
+class Elf32_Phdr:
+ def __init__(self, data):
+ self.p_type = struct.unpack("<L", data[0:4])[0]
+ self.p_offset = struct.unpack("<L", data[4:8])[0]
+ self.p_vaddr = struct.unpack("<L", data[8:12])[0]
+ self.p_paddr = struct.unpack("<L", data[12:16])[0]
+ self.p_filesz = struct.unpack("<L", data[16:20])[0]
+ self.p_memsz = struct.unpack("<L", data[20:24])[0]
+ self.p_flags = struct.unpack("<L", data[24:28])[0]
+ self.p_align = struct.unpack("<L", data[28:32])[0]
+
+ def pack(self):
+ # Pack the Program header table into a binary string
+ data = b''
+ data += struct.pack('<L', self.p_type)
+ data += struct.pack('<L', self.p_offset)
+ data += struct.pack('<L', self.p_vaddr)
+ data += struct.pack('<L', self.p_paddr)
+ data += struct.pack('<L', self.p_filesz)
+ data += struct.pack('<L', self.p_memsz)
+ data += struct.pack('<L', self.p_flags)
+ data += struct.pack('<L', self.p_align)
+ return data
+
+def SectionAlignment(NewUPLEntry, AlignmentIndex):
+ # Section entry Alignment
+ # Alignment is transfer to integer if AlignmentIndex is string.
+ if isinstance(AlignmentIndex, str):
+ int_num = int(AlignmentIndex, 16)
+ int_num = 10 * (int_num//16) + int_num % 16
+ else:
+ int_num = AlignmentIndex
+ if (int_num != 0 or int_num != 1):
+ if ((len(NewUPLEntry) % int_num) != 0):
+ AlignNumber = int_num - (len(NewUPLEntry) % int_num)
+ if (AlignNumber != 0):
+ for x in range(AlignNumber):
+ NewUPLEntry = NewUPLEntry + bytearray(b'\0')
+ return NewUPLEntry
+
+def SectionEntryFill(SectionEntry, Alignment, Value, Offset):
+ # Alignment
+ n = 0
+ if (len (Value) < Alignment):
+ Value = Value.zfill(Alignment)
+ for x in range(0, (Alignment//2)):
+ Index = '0x' + Value[n] + Value[n + 1]
+ SectionEntry[Offset - x] = int(Index,16)
+ n += 2
+ return SectionEntry
+
+def ElfHeaderParser(UPLEntry):
+ # Read EI_CLASS, it stores information that elf with 32-bit or 64-bit architectures.
+ EI_CLASS = UPLEntry[4]
+ # If Elf is 64-bit objects.
+ if (EI_CLASS == 2):
+ # Elf header is stored at 0x0-0x40 in 64-bits objects
+ ElfHeaderData = UPLEntry[:64]
+ # If Elf is 32-bit objects.
+ else:
+ # Elf header is stored at 0x0-0x34 in 32-bits objects
+ ElfHeaderData = UPLEntry[:53]
+ # If Elf is 64-bit objects.
+ if (EI_CLASS == 2):
+ elf_header = ElfHeader64(ElfHeaderData)
+ ElfHeaderOffset = elf_header.e_shoff
+ SectionHeaderEntryNumber = elf_header.e_shnum
+ StringIndexNumber = elf_header.e_shstrndx
+ SectionHeaderEntrySize = elf_header.e_shentsize
+ StringIndexEntryOffset = ElfHeaderOffset + (StringIndexNumber * SectionHeaderEntrySize)
+ unpacked_header = ElfSectionHeader64.unpack(UPLEntry[StringIndexEntryOffset: (StringIndexEntryOffset + SectionHeaderEntrySize)])
+ StringIndexSize = unpacked_header.sh_size
+ StringIndexOffset = unpacked_header.sh_offset
+ # If elf is 32-bit objects.
+ else:
+ elf_header = ElfHeader32(ElfHeaderData)
+ ElfHeaderOffset = elf_header.e_shoff
+ SectionHeaderEntryNumber = elf_header.e_shnum
+ StringIndexNumber = elf_header.e_shstrndx
+ SectionHeaderEntrySize = elf_header.e_shentsize
+ StringIndexEntryOffset = ElfHeaderOffset + (StringIndexNumber * SectionHeaderEntrySize)
+ unpacked_header = ElfSectionHeader32.unpack(UPLEntry[StringIndexEntryOffset: (StringIndexEntryOffset + SectionHeaderEntrySize)])
+ StringIndexSize = unpacked_header.sh_size
+ StringIndexOffset = unpacked_header.sh_offset
+ return ElfHeaderOffset, SectionHeaderEntryNumber, StringIndexNumber, StringIndexEntryOffset, StringIndexSize, SectionHeaderEntrySize, StringIndexOffset, EI_CLASS
+
+def FindSection(UPLEntry, SectionName):
+ ElfHeaderOffset, SectionHeaderEntryNumber, StringIndexNumber, _, StringIndexSize, SectionHeaderEntrySize, StringIndexOffset, EI_CLASS = ElfHeaderParser(UPLEntry)
+ # StringIndex is String Index section
+ StringIndex = UPLEntry[StringIndexOffset:StringIndexOffset+StringIndexSize]
+ # Section header isn't exist if SectionNameOffset = -1.
+ StringIndex = StringIndex.decode('utf-8', errors='ignore')
+ SectionNameOffset = StringIndex.find(SectionName)
+ return SectionNameOffset, ElfHeaderOffset, SectionHeaderEntrySize, SectionHeaderEntryNumber, StringIndexOffset, StringIndexNumber, EI_CLASS
+
+def AddNewSectionEntry64(LastUPLEntrylen, StringIndexValue, SectionSize, Alignment):
+ # If elf is 64-bit objects.
+ NewSectionEntry = ElfSectionHeader64 (StringIndexValue, 1, 0, 0, LastUPLEntrylen, SectionSize, 0, 0, Alignment, 0)
+ sh_bytes = NewSectionEntry.pack()
+ return sh_bytes
+
+def AddNewSectionEntry32(LastUPLEntrylen, StringIndexValue, SectionSize, Alignment):
+ # If elf is 32-bit objects.
+ NewSectionEntry = ElfSectionHeader32 (StringIndexValue, 1, 0, 0, LastUPLEntrylen, SectionSize, 0, 0, Alignment, 0)
+ sh_bytes = NewSectionEntry.pack()
+ return sh_bytes
+
+def AddSectionHeader64(SHentry, NewUPLEntrylen, SectionHeaderEntrySize, Index, RemoveNameOffset, SectionName, StringIndexNumber):
+ SHentry = bytearray(SHentry)
+ unpacked_header = ElfSectionHeader64.unpack(SHentry[(Index * SectionHeaderEntrySize):((Index * SectionHeaderEntrySize) + SectionHeaderEntrySize)])
+ # Section header of section 0 shows 0. It don't modify any offset.
+ if (Index != 0):
+ # read section offset.
+ unpacked_header.sh_offset = NewUPLEntrylen
+ # Modify offset of name in section entry
+ # if RemoveNameOffset != 0 that is remove function.
+ if (RemoveNameOffset != 0):
+ if (unpacked_header.sh_name > RemoveNameOffset):
+ unpacked_header.sh_name -= RemoveNameOffset
+ # Modify size of name string section entry in section entry.
+ if (Index == StringIndexNumber):
+ unpacked_header.sh_size -= len (SectionName)
+ # added section
+ else :
+ if (Index == StringIndexNumber):
+ unpacked_header.sh_size += len (SectionName)
+ NewSHentry = ElfSectionHeader64 (
+ unpacked_header.sh_name,
+ unpacked_header.sh_type,
+ unpacked_header.sh_flags,
+ unpacked_header.sh_addr,
+ unpacked_header.sh_offset,
+ unpacked_header.sh_size,
+ unpacked_header.sh_link,
+ unpacked_header.sh_info,
+ unpacked_header.sh_addralign,
+ unpacked_header.sh_entsize).pack()
+ return NewSHentry
+
+def AddSectionHeader32(SHentry, NewUPLEntrylen, SectionHeaderEntrySize, Index, RemoveNameOffset, SectionName, StringIndexNumber):
+ SHentry = bytearray(SHentry)
+ unpacked_header = ElfSectionHeader32.unpack(SHentry[(Index * SectionHeaderEntrySize):((Index * SectionHeaderEntrySize) + SectionHeaderEntrySize)])
+ if (Index != 0):
+ NewSHentry = SHentry[(Index * SectionHeaderEntrySize):((Index * SectionHeaderEntrySize) + SectionHeaderEntrySize)]
+ unpacked_header.sh_offset = NewUPLEntrylen
+ # Modify offset of name in section entry
+ # if RemoveNameOffset != 0 that is remove function.
+ if (RemoveNameOffset != 0):
+ if (unpacked_header.sh_name > RemoveNameOffset):
+ unpacked_header.sh_name -= RemoveNameOffset
+ # Modify size of name string section entry in section entry.
+ if (Index == StringIndexNumber):
+ unpacked_header.sh_size -= len (SectionName)
+ # added section
+ else :
+ if (Index == StringIndexNumber):
+ unpacked_header.sh_size += len (SectionName)
+ NewSHentry = ElfSectionHeader32 (
+ unpacked_header.sh_name,
+ unpacked_header.sh_type,
+ unpacked_header.sh_flags,
+ unpacked_header.sh_addr,
+ unpacked_header.sh_offset,
+ unpacked_header.sh_size,
+ unpacked_header.sh_link,
+ unpacked_header.sh_info,
+ unpacked_header.sh_addralign,
+ unpacked_header.sh_entsize).pack()
+ return NewSHentry
+
+def ModifyPHSegmentOffset64(NewUPLEntry, ElfHeaderOffset, PHSegmentName):
+ # Modify offset and address of program header tables.
+ elf_header = ElfHeader64(NewUPLEntry[:64])
+ SHentry = NewUPLEntry[ElfHeaderOffset:]
+ # Elf program header tables start from 0x40 in 64-bits objects
+ PHentry = NewUPLEntry[64: 64 + (elf_header.e_phnum * elf_header.e_phentsize)]
+ PHdrs = []
+ SHdrs = []
+ for i in range(elf_header.e_shnum):
+ SHData = SHentry[(i * elf_header.e_shentsize): (i * elf_header.e_shentsize) + elf_header.e_shentsize]
+ unpacked_SectionHeader = ElfSectionHeader64.unpack(SHData)
+ SHdrs.append(unpacked_SectionHeader)
+ for i in range(elf_header.e_phnum):
+ PHData = PHentry[(i * elf_header.e_phentsize): (i * elf_header.e_phentsize) + elf_header.e_phentsize]
+ unpacked_ProgramHeader = Elf64_Phdr(PHData)
+ PHdrs.append(unpacked_ProgramHeader)
+ if (PHSegmentName == '.text'):
+ PHdrs[0].p_offset = SHdrs[1].sh_offset
+ PHdrs[0].p_paddr = SHdrs[1].sh_addr
+ PHdrs[4].p_offset = SHdrs[1].sh_offset
+ PHdrs[4].p_paddr = SHdrs[1].sh_addr
+ elif (PHSegmentName == '.dynamic'):
+ PHdrs[1].p_offset = SHdrs[2].sh_offset
+ PHdrs[1].p_paddr = SHdrs[2].sh_addr
+ PHdrs[3].p_offset = SHdrs[2].sh_offset
+ PHdrs[3].p_paddr = SHdrs[2].sh_addr
+ elif (PHSegmentName == '.data'):
+ PHdrs[2].p_offset = SHdrs[3].sh_offset
+ PHdrs[2].p_paddr = SHdrs[3].sh_addr
+ packed_PHData = b''
+ for phdr in PHdrs:
+ packed_PHData += phdr.pack()
+ NewUPLEntry = bytearray(NewUPLEntry)
+ NewUPLEntry[64: 64 + (elf_header.e_phnum * elf_header.e_phentsize)] = packed_PHData
+ return NewUPLEntry
+
+def ModifyPHSegmentOffset32(NewUPLEntry, ElfHeaderOffset, PHSegmentName):
+ # Modify offset and address of program header tables.
+ # Elf header is stored at 0x0-0x34 in 32-bits objects
+ elf_header = ElfHeader32(NewUPLEntry[:52])
+ SHentry = NewUPLEntry[ElfHeaderOffset:]
+ # Elf program header tables start from 0x34 in 32-bits objects
+ PHentry = NewUPLEntry[52: 52 + (elf_header.e_phnum * elf_header.e_phentsize)]
+ PHdrs = []
+ SHdrs = []
+ for i in range(elf_header.e_shnum):
+ SHData = SHentry[(i * elf_header.e_shentsize): (i * elf_header.e_shentsize) + elf_header.e_shentsize]
+ unpacked_SectionHeader = ElfSectionHeader32.unpack(SHData)
+ SHdrs.append(unpacked_SectionHeader)
+ for i in range(elf_header.e_phnum):
+ PHData = PHentry[(i * elf_header.e_phentsize): (i * elf_header.e_phentsize) + elf_header.e_phentsize]
+ unpacked_ProgramHeader = Elf32_Phdr(PHData)
+ PHdrs.append(unpacked_ProgramHeader)
+ if (PHSegmentName == '.text'):
+ PHdrs[0].p_offset = SHdrs[1].sh_offset
+ PHdrs[0].p_paddr = SHdrs[1].sh_addr
+ PHdrs[0].p_vaddr = SHdrs[1].sh_addr
+ PHdrs[2].p_offset = SHdrs[1].sh_offset
+ PHdrs[2].p_paddr = SHdrs[1].sh_addr
+ PHdrs[0].p_vaddr = SHdrs[1].sh_addr
+ elif (PHSegmentName == '.data'):
+ PHdrs[1].p_offset = SHdrs[2].sh_offset
+ PHdrs[1].p_paddr = SHdrs[2].sh_addr
+ PHdrs[1].p_vaddr = SHdrs[2].sh_addr
+ packed_PHData = b''
+ for phdr in PHdrs:
+ packed_PHData += phdr.pack()
+ NewUPLEntry = bytearray(NewUPLEntry)
+ NewUPLEntry[52: 52 + (elf_header.e_phnum * elf_header.e_phentsize)] = packed_PHData
+ return NewUPLEntry
+
+def RemoveSection64(UniversalPayloadEntry, RemoveSectionName):
+ # If elf is 64-bit objects.
+ # Get offsets as follows:
+ # 1. Section name which will remove in section name string.
+ # 2. Section which will remove.
+ # 3. Section header which will remove.
+ with open(UniversalPayloadEntry,'rb') as f:
+ UPLEntry = f.read()
+ RemoveSectionNameOffset, ElfHeaderOffset, SectionHeaderEntrySize, SectionHeaderEntryNumber, _, StringIndexNumber, _ = FindSection(UPLEntry, RemoveSectionName)
+ if (RemoveSectionNameOffset == -1):
+ raise argparse.ArgumentTypeError ('Section: {} not found.'.format (RemoveSectionNameOffset))
+ # Read section header entry
+ SHentry = UPLEntry[ElfHeaderOffset:]
+ # find deleted fv section offset.
+ # Elf header is stored at 0x0-0x40 in 64-bits objects
+ elf_header = ElfHeader64(UPLEntry[:64])
+ Counter = 0
+ RemoveIndex = 0
+ RemoveNameOffset = 0
+ for Index in range(0, elf_header.e_shnum):
+ # Read Index of section header.
+ unpacked_SectionHeader = ElfSectionHeader64.unpack(SHentry[(Index * elf_header.e_shentsize):((Index * elf_header.e_shentsize) + elf_header.e_shentsize)])
+ # Find offset of section name which is removed.
+ if (unpacked_SectionHeader.sh_name == RemoveSectionNameOffset):
+ RemoveIndex = Counter
+ Counter += 1
+ else:
+ Counter += 1
+ # Elf header is recombined.
+ # Elf header and program header table in front of first section are reserved.
+ # Elf header size is 0x40 with 64-bit object.
+ ElfHeaderSize = 64
+ ElfHandPH = ElfHeaderSize + (elf_header.e_phnum * elf_header.e_phentsize)
+ NewUPLEntry = UPLEntry[:ElfHandPH]
+ # Keep Section header and program header table, RemoveSection64() only recombined section and section header.
+ NewUPLEntry = bytearray(NewUPLEntry)
+ # Sections is recombined.
+ # 1. name of deleted section is removed in name string section.
+ # 2. deleted section is removed in dll file.
+ # 3. re-align sections before and after deleted section.
+ NewUPLEntrylen = []
+ for Index in range(0, (SectionHeaderEntryNumber)):
+ unpacked_SectionHeader = ElfSectionHeader64.unpack(SHentry[(Index * SectionHeaderEntrySize):((Index * SectionHeaderEntrySize) + SectionHeaderEntrySize)])
+ NewUPLEntrylen.append(len(NewUPLEntry))
+ if (Index == 0):
+ # Address alignment, section will align with alignment of next section.
+ AlignmentIndex = 8
+ if (SectionHeaderEntryNumber > 2):
+ unpacked_NextSectionHeader = ElfSectionHeader64.unpack(SHentry[((Index + 1) * SectionHeaderEntrySize):(((Index + 1) * SectionHeaderEntrySize) + SectionHeaderEntrySize)])
+ NewUPLEntry = SectionAlignment(NewUPLEntry, unpacked_NextSectionHeader.sh_addralign)
+ # Section in front of removed section
+ elif (Index + 1 == RemoveIndex):
+ NewUPLEntry += UPLEntry[unpacked_SectionHeader.sh_offset:(unpacked_SectionHeader.sh_offset + unpacked_SectionHeader.sh_size)]
+ # Read section address alignment
+ # If section that will be removed in .dll is not first and last one .
+ # Address alignment, section will align with alignment of section after deleted section.
+ # Check next and the section after next are not end of section.
+ if ((Index + 2) < (SectionHeaderEntryNumber - 1)):
+ unpacked_Next2SectionHeader = ElfSectionHeader64.unpack(SHentry[((Index + 2) * SectionHeaderEntrySize):(((Index + 2) * SectionHeaderEntrySize) + SectionHeaderEntrySize)])
+ NewUPLEntry = SectionAlignment(NewUPLEntry, unpacked_Next2SectionHeader.sh_addralign)
+ else:
+ # It is align 8 bytes if next section or the section after next is last one.
+ AlignmentIndex = 8
+ NewUPLEntry = SectionAlignment(NewUPLEntry, AlignmentIndex)
+ # section is Deleted section
+ elif (Index == RemoveIndex):
+ # Don't add removed section to elf.
+ # Find offset of section name.
+ RemoveNameOffset = unpacked_SectionHeader.sh_name
+ # section is name string section.
+ elif (Index == StringIndexNumber):
+ # StringIndex is String Index section
+ StringIndex = UPLEntry[unpacked_SectionHeader.sh_offset:(unpacked_SectionHeader.sh_offset + unpacked_SectionHeader.sh_size)]
+ # Remove name of removed section in name string section.
+ # Section header isn't exist if RemoveSectionNameOffset equal to -1.
+ StringIndex = bytearray(StringIndex)
+ RemoveSectionName = bytearray(RemoveSectionName, encoding='utf-8')
+ RemoveSectionName = RemoveSectionName + bytes('\0', encoding='utf-8')
+ StringIndex = StringIndex.replace(RemoveSectionName,b'')
+ NewUPLEntry += StringIndex
+ # other sections.
+ else:
+ NewUPLEntry += UPLEntry[unpacked_SectionHeader.sh_offset:(unpacked_SectionHeader.sh_offset + unpacked_SectionHeader.sh_size)]
+ # Address alignment, section will align with alignment of next section.
+ if (Index < (SectionHeaderEntryNumber - 1)):
+ NewUPLEntry = SectionAlignment(NewUPLEntry, unpacked_NextSectionHeader.sh_addralign)
+ else:
+ # If section is last one.
+ AlignmentIndex = 8
+ NewUPLEntry = SectionAlignment(NewUPLEntry, AlignmentIndex)
+ SectionHeaderOffset = len(NewUPLEntry)
+ # Add section header
+ for Number in range(0, (SectionHeaderEntryNumber)):
+ if (Number != RemoveIndex):
+ NewSHentry = AddSectionHeader64(SHentry, NewUPLEntrylen[Number], SectionHeaderEntrySize, Number, RemoveNameOffset, RemoveSectionName, StringIndexNumber)
+ NewUPLEntry += NewSHentry
+ # Modify number of sections and offset of section header in Elf header.
+ elf_header.e_shoff = SectionHeaderOffset
+ elf_header.e_shnum -= 1
+ NewUPLEntry = elf_header.pack() + NewUPLEntry[64:]
+ # write to Elf.
+ with open(UniversalPayloadEntry,'wb') as f:
+ f.write(NewUPLEntry)
+
+def RemoveSection32(UniversalPayloadEntry, RemoveSectionName):
+ # If elf is 32-bit objects.
+ # Get offsets as follows:
+ # 1. Section name which will remove in section name string.
+ # 2. Section which will remove.
+ # 3. Section header which will remove.
+ with open(UniversalPayloadEntry,'rb') as f:
+ UPLEntry = f.read()
+ RemoveSectionNameOffset, ElfHeaderOffset, SectionHeaderEntrySize, SectionHeaderEntryNumber, _, StringIndexNumber, EI_CLASS = FindSection(UPLEntry, RemoveSectionName)
+ if (RemoveSectionNameOffset == -1):
+ raise argparse.ArgumentTypeError ('Section: {} not found.'.format (RemoveSectionNameOffset))
+ # Read section header entry
+ SHentry = UPLEntry[ElfHeaderOffset:]
+ # find deleted fv section offset.
+ # Elf header is stored at 0x0-0x34 in 32-bits objects
+ elf_header = ElfHeader32(UPLEntry[:52])
+ Counter = 0
+ RemoveIndex = 0
+ RemoveNameOffset = 0
+ for Index in range(0, elf_header.e_shnum):
+ # Read Index of section header.
+ unpacked_SectionHeader = ElfSectionHeader32.unpack(SHentry[(Index * elf_header.e_shentsize):((Index * elf_header.e_shentsize) + elf_header.e_shentsize)])
+ # Find offset of section name which is removed.
+ if (unpacked_SectionHeader.sh_name == RemoveSectionNameOffset):
+ RemoveIndex = Counter
+ Counter += 1
+ else:
+ Counter += 1
+ # Elf header is recombined.
+ # Elf header and program header table in front of first section are reserved.
+ # Elf header size is 0x34 with 32-bit object.
+ ElfHeaderSize = 52
+ ElfHandPH = ElfHeaderSize + (elf_header.e_phnum * elf_header.e_phentsize)
+ NewUPLEntry = UPLEntry[:ElfHandPH]
+ # Keep Section header and program header table, RemoveSection32() only recombined section and section header.
+ NewUPLEntry = bytearray(NewUPLEntry)
+ # Sections is recombined.
+ # 1. name of deleted section is removed in name string section.
+ # 2. deleted section is removed in dll file.
+ # 3. re-align sections before and after deleted section.
+ NewUPLEntrylen = []
+ for Index in range(0, (SectionHeaderEntryNumber)):
+ unpacked_SectionHeader = ElfSectionHeader32.unpack(SHentry[(Index * SectionHeaderEntrySize):((Index * SectionHeaderEntrySize) + SectionHeaderEntrySize)])
+ NewUPLEntrylen.append(len(NewUPLEntry))
+ if (Index == 0):
+ # Address alignment, section will align with alignment of next section.
+ AlignmentIndex = 8
+ if (SectionHeaderEntryNumber > 2):
+ unpacked_NextSectionHeader = ElfSectionHeader32.unpack(SHentry[((Index + 1) * SectionHeaderEntrySize):(((Index + 1) * SectionHeaderEntrySize) + SectionHeaderEntrySize)])
+ NewUPLEntry = SectionAlignment(NewUPLEntry, unpacked_NextSectionHeader.sh_addralign)
+ # Section in front of removed section
+ elif (Index + 1 == RemoveIndex):
+ NewUPLEntry += UPLEntry[unpacked_SectionHeader.sh_offset:(unpacked_SectionHeader.sh_offset + unpacked_SectionHeader.sh_size)]
+ # Read section address alignment
+ # If section that will be removed in .dll is not first and last one .
+ # Address alignment, section will align with alignment of section after deleted section.
+ # Check next and the section after next are not end of section.
+ if ((Index + 2) < (SectionHeaderEntryNumber - 1)):
+ unpacked_Next2SectionHeader = ElfSectionHeader32.unpack(SHentry[((Index + 2) * SectionHeaderEntrySize):(((Index + 2) * SectionHeaderEntrySize) + SectionHeaderEntrySize)])
+ NewUPLEntry = SectionAlignment(NewUPLEntry, unpacked_Next2SectionHeader.sh_addralign)
+ else:
+ # It is align 8 bytes if next section or the section after next is last one.
+ AlignmentIndex = 8
+ NewUPLEntry = SectionAlignment(NewUPLEntry, AlignmentIndex)
+ # section is Deleted section
+ elif (Index == RemoveIndex):
+ # Don't add removed section to elf.
+ # Find offset of section name.
+ RemoveNameOffset = unpacked_SectionHeader.sh_name
+ # section is name string section.
+ elif (Index == StringIndexNumber):
+ # StringIndex is String Index section
+ StringIndex = UPLEntry[unpacked_SectionHeader.sh_offset:(unpacked_SectionHeader.sh_offset + unpacked_SectionHeader.sh_size)]
+ # Remove name of removed section in name string section.
+ # Section header isn't exist if RemoveSectionNameOffset equal to -1.
+ StringIndex = bytearray(StringIndex)
+ RemoveSectionName = bytearray(RemoveSectionName, encoding='utf-8')
+ RemoveSectionName = RemoveSectionName + bytes('\0', encoding='utf-8')
+ StringIndex = StringIndex.replace(RemoveSectionName,b'')
+ NewUPLEntry += StringIndex
+ # other sections.
+ else:
+ NewUPLEntry += UPLEntry[unpacked_SectionHeader.sh_offset:(unpacked_SectionHeader.sh_offset + unpacked_SectionHeader.sh_size)]
+ # Address alignment, section will align with alignment of next section.
+ if (Index < (SectionHeaderEntryNumber - 1)):
+ NewUPLEntry = SectionAlignment(NewUPLEntry, unpacked_NextSectionHeader.sh_addralign)
+ else:
+ # If section is last one.
+ AlignmentIndex = 8
+ NewUPLEntry = SectionAlignment(NewUPLEntry, AlignmentIndex)
+ SectionHeaderOffset = len(NewUPLEntry)
+ # Add section header
+ for Number in range(0, (SectionHeaderEntryNumber)):
+ if (Number != RemoveIndex):
+ NewSHentry = AddSectionHeader32(SHentry, NewUPLEntrylen[Number], SectionHeaderEntrySize, Number, RemoveNameOffset, RemoveSectionName, StringIndexNumber)
+ NewUPLEntry += NewSHentry
+ # Modify number of sections and offset of section header in Elf header.
+ elf_header.e_shoff = SectionHeaderOffset
+ elf_header.e_shnum -= 1
+ NewUPLEntry = elf_header.pack() + NewUPLEntry[52:]
+ # write to Elf.
+ with open(UniversalPayloadEntry,'wb') as f:
+ f.write(NewUPLEntry)
+
+def AddSection64(UniversalPayloadEntry, AddSectionName, ElfHeaderOffset, SectionHeaderEntrySize, SectionHeaderEntryNumber, StringIndexNumber, FileBinary, Alignment):
+ with open(UniversalPayloadEntry,'rb+') as f:
+ UPLEntry = f.read()
+ fFileBinary = open(FileBinary, 'rb')
+ Binary_File = fFileBinary.read()
+ ElfHeaderOffset, SectionHeaderEntryNumber, StringIndexNumber, _, _, SectionHeaderEntrySize, _, _ = ElfHeaderParser(UPLEntry)
+ # Read section header entry
+ SHentry = UPLEntry[ElfHeaderOffset:]
+ # Elf header is recombined.
+ # Elf header and program header table in front of first section are reserved.
+ # Elf header is stored at 0x0-0x40 in 64-bits objects
+ elf_header = ElfHeader64(UPLEntry[:64])
+ # Elf header size is 0x40 with 64-bit object.
+ ElfHeaderSize = 64
+ ElfHandPH = ElfHeaderSize + (elf_header.e_phnum * elf_header.e_phentsize)
+ NewUPLEntry = UPLEntry[:ElfHandPH]
+ # Keep Section header and program header table, AddSection64() only recombined section and section header.
+ NewUPLEntry = bytearray(NewUPLEntry)
+ # Sections is recombined.
+ # 1. name of added section is added in name string section.
+ # 2. added section is added in dll file.
+ # 3. re-align sections before and after added section.
+ NewUPLEntrylen = []
+ StringIndexValue = 0
+ for Index in range(0, SectionHeaderEntryNumber):
+ NewUPLEntrylen.append(len(NewUPLEntry))
+ unpacked_SectionHeader = ElfSectionHeader64.unpack(SHentry[(Index * SectionHeaderEntrySize):((Index * SectionHeaderEntrySize) + SectionHeaderEntrySize)])
+ # Sections is recombined.
+ if (Index == 0):
+ # Address alignment, section will align with alignment of next section.
+ AlignmentIndex = 8
+ if (SectionHeaderEntryNumber > 2):
+ unpacked_NextSectionHeader = ElfSectionHeader64.unpack(SHentry[((Index + 1) * SectionHeaderEntrySize):(((Index + 1) * SectionHeaderEntrySize) + SectionHeaderEntrySize)])
+ NewUPLEntry = SectionAlignment(NewUPLEntry, unpacked_NextSectionHeader.sh_addralign)
+ # Section is last one.
+ elif (Index == (SectionHeaderEntryNumber - 1)):
+ # Add new section at the end.
+ NewUPLEntry += UPLEntry[unpacked_SectionHeader.sh_offset:(unpacked_SectionHeader.sh_offset + unpacked_SectionHeader.sh_size)]
+ NewUPLEntry = SectionAlignment(NewUPLEntry, Alignment)
+ LastUPLEntrylen = len(NewUPLEntry)
+ NewUPLEntry += Binary_File
+ # Address alignment, section will align with alignment of next section.
+ AlignmentIndex = 8
+ NewUPLEntry = SectionAlignment(NewUPLEntry, AlignmentIndex)
+ # section is name string section.
+ elif (Index == StringIndexNumber):
+ # StringIndex is String Index section
+ StringIndex = UPLEntry[unpacked_SectionHeader.sh_offset:(unpacked_SectionHeader.sh_offset + unpacked_SectionHeader.sh_size)]
+ # Read name of added Section after StringIndex is transform into string.
+ StringIndex = bytearray(StringIndex)
+ StringIndexValue = len(StringIndex)
+ AddSectionName = bytearray(AddSectionName, encoding='utf-8') + bytes('\0', encoding='utf-8')
+ StringIndex += AddSectionName
+ NewUPLEntry += StringIndex
+ # section after name string section but not last one.
+ elif ((Index > StringIndexNumber) and (Index < (SectionHeaderEntryNumber - 1))):
+ NewUPLEntry += UPLEntry[unpacked_SectionHeader.sh_offset:(unpacked_SectionHeader.sh_offset + unpacked_SectionHeader.sh_size)]
+ # Address alignment, section will align with alignment of next section.
+ unpacked_NextSectionHeader = ElfSectionHeader64.unpack(SHentry[((Index + 1) * SectionHeaderEntrySize):(((Index + 1) * SectionHeaderEntrySize) + SectionHeaderEntrySize)])
+ NewUPLEntry = SectionAlignment(NewUPLEntry, unpacked_NextSectionHeader.sh_addralign)
+ # Section before name string section.
+ else:
+ NewUPLEntry += UPLEntry[unpacked_SectionHeader.sh_offset:(unpacked_SectionHeader.sh_offset + unpacked_SectionHeader.sh_size)]
+ # Address alignment, section will align with alignment of next section.
+ if (Index < (SectionHeaderEntryNumber - 1)):
+ unpacked_NextSectionHeader = ElfSectionHeader64.unpack(SHentry[((Index + 1) * SectionHeaderEntrySize):(((Index + 1) * SectionHeaderEntrySize) + SectionHeaderEntrySize)])
+ NewUPLEntry = SectionAlignment(NewUPLEntry, unpacked_NextSectionHeader.sh_addralign)
+ SectionHeaderOffset = len(NewUPLEntry)
+ RemoveNameOffset = 0
+ # Add section header
+ for Number in range(0, (SectionHeaderEntryNumber)):
+ NewSHentry = AddSectionHeader64(SHentry, NewUPLEntrylen[Number], SectionHeaderEntrySize, Number, RemoveNameOffset, AddSectionName, StringIndexNumber)
+ NewUPLEntry += NewSHentry
+ NewUPLEntry += bytearray(AddNewSectionEntry64(LastUPLEntrylen, StringIndexValue, len(Binary_File), Alignment))
+ # Modify number of sections and offset of section header in Elf header.
+ # Modify offset in in Elf header.
+ elf_header.e_shoff = SectionHeaderOffset
+ elf_header.e_shnum += 1
+ elf_header = elf_header.pack()
+ UPLEntryBin = elf_header + NewUPLEntry[64:]
+ # Modify offsets and address of program header table in elf.
+ PHSegmentName = '.text'
+ _, ElfHeaderOffset, SectionHeaderEntrySize, SectionHeaderEntryNumber, _, StringIndexNumber, _ = FindSection(UPLEntryBin, PHSegmentName)
+ UPLEntryBin = ModifyPHSegmentOffset64(UPLEntryBin, ElfHeaderOffset, PHSegmentName)
+ # Modify offsets and address of program header table in elf.
+ PHSegmentName = '.dynamic'
+ _, ElfHeaderOffset, SectionHeaderEntrySize, SectionHeaderEntryNumber, _, StringIndexNumber, _ = FindSection(UPLEntryBin, PHSegmentName)
+ UPLEntryBin = ModifyPHSegmentOffset64(UPLEntryBin, ElfHeaderOffset, PHSegmentName)
+ # Modify offsets and address of program header table in elf.
+ PHSegmentName = '.data'
+ _, ElfHeaderOffset, SectionHeaderEntrySize, SectionHeaderEntryNumber, _, StringIndexNumber, _ = FindSection(UPLEntryBin, PHSegmentName)
+ UPLEntryBin = ModifyPHSegmentOffset64(UPLEntryBin, ElfHeaderOffset, PHSegmentName)
+ fFileBinary.close()
+ return UPLEntryBin
+
+def AddSection32(UniversalPayloadEntry, AddSectionName, ElfHeaderOffset, SectionHeaderEntrySize, SectionHeaderEntryNumber, StringIndexNumber, FileBinary, Alignment):
+ with open(UniversalPayloadEntry,'rb+') as f:
+ # Read Elf and binary which will be write to elf.
+ UPLEntry = f.read()
+ fFileBinary = open(FileBinary, 'rb')
+ Binary_File = fFileBinary.read()
+ ElfHeaderOffset, SectionHeaderEntryNumber, StringIndexNumber, _, _, SectionHeaderEntrySize, _, _ = ElfHeaderParser(UPLEntry)
+ # Read section header entry
+ SHentry = UPLEntry[ElfHeaderOffset:]
+ # Elf header is recombined.
+ # Elf header and program header table in front of first section are reserved.
+ # Elf header is stored at 0x0-0x34 in 32-bits objects
+ elf_header = ElfHeader32(UPLEntry[:52])
+ # Elf header size is 0x34 with 32-bit object.
+ ElfHeaderSize = 52
+ ElfHandPH = ElfHeaderSize + (elf_header.e_phnum * elf_header.e_phentsize)
+ NewUPLEntry = UPLEntry[:ElfHandPH]
+ # Keep Section header and program header table, AddSection64() only recombined section and section header.
+ NewUPLEntry = bytearray(NewUPLEntry)
+ # Sections is recombined.
+ # 1. name of added section is added in name string section.
+ # 2. added section is added in dll file.
+ # 3. re-align sections before and after added section.
+ NewUPLEntrylen = []
+ StringIndexValue = 0
+ for Index in range(0, SectionHeaderEntryNumber):
+ NewUPLEntrylen.append(len(NewUPLEntry))
+ unpacked_SectionHeader = ElfSectionHeader32.unpack(SHentry[(Index * SectionHeaderEntrySize):((Index * SectionHeaderEntrySize) + SectionHeaderEntrySize)])
+ # Sections is recombined.
+ if (Index == 0):
+ # Address alignment, section will align with alignment of next section.
+ AlignmentIndex = 8
+ if (SectionHeaderEntryNumber > 2):
+ unpacked_NextSectionHeader = ElfSectionHeader32.unpack(SHentry[((Index + 1) * SectionHeaderEntrySize):(((Index + 1) * SectionHeaderEntrySize) + SectionHeaderEntrySize)])
+ NewUPLEntry = SectionAlignment(NewUPLEntry, unpacked_NextSectionHeader.sh_addralign)
+ # Section is last one.
+ elif (Index == (SectionHeaderEntryNumber - 1)):
+ # Add new section at the end.
+ NewUPLEntry += UPLEntry[unpacked_SectionHeader.sh_offset:(unpacked_SectionHeader.sh_offset + unpacked_SectionHeader.sh_size)]
+ NewUPLEntry = SectionAlignment(NewUPLEntry, Alignment)
+ LastUPLEntrylen = len(NewUPLEntry)
+ NewUPLEntry += Binary_File
+ # Address alignment, section will align with alignment of next section.
+ AlignmentIndex = 8
+ NewUPLEntry = SectionAlignment(NewUPLEntry, AlignmentIndex)
+ # section is name string section.
+ elif (Index == StringIndexNumber):
+ # StringIndex is String Index section
+ StringIndex = UPLEntry[unpacked_SectionHeader.sh_offset:(unpacked_SectionHeader.sh_offset + unpacked_SectionHeader.sh_size)]
+ # Read name of added Section after StringIndex is transform into string.
+ StringIndex = bytearray(StringIndex)
+ StringIndexValue = len(StringIndex)
+ AddSectionName = bytearray(AddSectionName, encoding='utf-8') + bytes('\0', encoding='utf-8')
+ StringIndex += AddSectionName
+ NewUPLEntry += StringIndex
+ # section after name string section but not last one.
+ elif ((Index > StringIndexNumber) and (Index < (SectionHeaderEntryNumber - 1))):
+ NewUPLEntry += UPLEntry[unpacked_SectionHeader.sh_offset:(unpacked_SectionHeader.sh_offset + unpacked_SectionHeader.sh_size)]
+ # Address alignment, section will align with alignment of next section.
+ unpacked_NextSectionHeader = ElfSectionHeader32.unpack(SHentry[((Index + 1) * SectionHeaderEntrySize):(((Index + 1) * SectionHeaderEntrySize) + SectionHeaderEntrySize)])
+ NewUPLEntry = SectionAlignment(NewUPLEntry, unpacked_NextSectionHeader.sh_addralign)
+ # Section before name string section.
+ else:
+ NewUPLEntry += UPLEntry[unpacked_SectionHeader.sh_offset:(unpacked_SectionHeader.sh_offset + unpacked_SectionHeader.sh_size)]
+ # Address alignment, section will align with alignment of next section.
+ if (Index < (SectionHeaderEntryNumber - 1)):
+ unpacked_NextSectionHeader = ElfSectionHeader32.unpack(SHentry[((Index + 1) * SectionHeaderEntrySize):(((Index + 1) * SectionHeaderEntrySize) + SectionHeaderEntrySize)])
+ NewUPLEntry = SectionAlignment(NewUPLEntry, unpacked_NextSectionHeader.sh_addralign)
+ SectionHeaderOffset = len(NewUPLEntry)
+ RemoveNameOffset = 0
+ # Add section header
+ for Number in range(0, (SectionHeaderEntryNumber)):
+ NewSHentry = AddSectionHeader32(SHentry, NewUPLEntrylen[Number], SectionHeaderEntrySize, Number, RemoveNameOffset, AddSectionName, StringIndexNumber)
+ NewUPLEntry += NewSHentry
+ NewUPLEntry += bytearray(AddNewSectionEntry32(LastUPLEntrylen, StringIndexValue, len(Binary_File), Alignment))
+ # Modify number of sections and offset of section header in Elf header.
+ # Modify offset in in Elf header.
+ elf_header.e_shoff = SectionHeaderOffset
+ elf_header.e_shnum += 1
+ PHTableSize = elf_header.e_phentsize
+ elf_header = elf_header.pack()
+ UPLEntryBin = elf_header + NewUPLEntry[52:]
+ # Modify offsets and address of program header table in elf.
+ PHSegmentName = '.text'
+ _, ElfHeaderOffset, SectionHeaderEntrySize, SectionHeaderEntryNumber, _, StringIndexNumber, _ = FindSection(UPLEntryBin, PHSegmentName)
+ UPLEntryBin = ModifyPHSegmentOffset32(UPLEntryBin, ElfHeaderOffset, PHSegmentName)
+ # Modify offsets and address of program header table in elf. Its are stored at 0x08-0x0F and 0x10-0x17
+ PHSegmentName = '.data'
+ _, ElfHeaderOffset, SectionHeaderEntrySize, SectionHeaderEntryNumber, _, StringIndexNumber, _ = FindSection(UPLEntryBin, PHSegmentName)
+ UPLEntryBin = ModifyPHSegmentOffset32(UPLEntryBin, ElfHeaderOffset, PHSegmentName)
+ fFileBinary.close()
+ return UPLEntryBin
+
+def ReplaceFv (UniversalPayloadEntry, FileBinary, AddSectionName, Alignment = 16):
+ with open(UniversalPayloadEntry,'rb+') as f:
+ UPLEntry = f.read()
+ SectionNameOffset, ElfHeaderOffset, SectionHeaderEntrySize, SectionHeaderEntryNumber, _, StringIndexNumber, EI_CLASS = FindSection(UPLEntry, AddSectionName)
+ # If elf is 64-bit objects.
+ if (EI_CLASS == 2):
+ # Remove section if it exists.
+ if (SectionNameOffset != -1):
+ RemoveSection64(UniversalPayloadEntry, AddSectionName)
+ # Add section.
+ NewUPLEntry = AddSection64(UniversalPayloadEntry, AddSectionName, ElfHeaderOffset, SectionHeaderEntrySize, SectionHeaderEntryNumber, StringIndexNumber, FileBinary, Alignment)
+ # If elf is 32-bit objects.
+ else:
+ # Remove section if it exists.
+ if (SectionNameOffset != -1):
+ RemoveSection32(UniversalPayloadEntry, AddSectionName)
+ # Add section.
+ NewUPLEntry = AddSection32(UniversalPayloadEntry, AddSectionName, ElfHeaderOffset, SectionHeaderEntrySize, SectionHeaderEntryNumber, StringIndexNumber, FileBinary, Alignment)
+ with open(UniversalPayloadEntry,'wb') as f:
+ f.write(NewUPLEntry)
+ return 0
generated by cgit v1.1 at 2024-06-30 14:19:25 +0000