mirror of https://github.com/acidanthera/audk.git
UefiPayloadPkg: Clang dependency removal
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4426 Use Python to replace llvm-objcopy in UniversalPayloadBuild.py. 1. AddSection32() and AddSection64(): Make a section named <section> with the contents of <file>. 2. RemoveSection32() and RemoveSection64(): Remove <section>. 3. ReplaceFv (): remove the section before add the section if the file exists. Cc: Guo Dong <guo.dong@intel.com> Cc: Ray Ni <ray.ni@intel.com> Cc: Sean Rhodes <sean@starlabs.systems> Cc: James Lu <james.lu@intel.com> Signed-off-by: BruceX Wang <brucex.wang@intel.com> Reviewed-by: Gua Guo <gua.guo@intel.com>
This commit is contained in:
BruceX Wang
mergify[bot]
parent
e5e1cd1a83
commit
95ef765839
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## @file
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# OBJCOPY parser, it's used to replace FV
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#
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# Copyright (c) 2023, 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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import argparse
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from ctypes import *
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import struct
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class ElfSectionHeader64:
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def __init__(self, sh_name, sh_type, sh_flags, sh_addr, sh_offset, sh_size, sh_link, sh_info, sh_addralign, sh_entsize):
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self.sh_name = sh_name
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self.sh_type = sh_type
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self.sh_flags = sh_flags
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self.sh_addr = sh_addr
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self.sh_offset = sh_offset
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self.sh_size = sh_size
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self.sh_link = sh_link
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self.sh_info = sh_info
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self.sh_addralign = sh_addralign
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self.sh_entsize = sh_entsize
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def pack(self):
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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)
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@classmethod
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def unpack(cls, data):
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unpacked_data = struct.unpack('<IIQQQQIIQQ', data)
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return cls(*unpacked_data)
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class ElfHeader64:
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def __init__(self, data):
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# Parse the ELF identification bytes
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self.e_ident = struct.unpack('16s', data[:16])[0]
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self.e_type = struct.unpack('H', data[16:18])[0]
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self.e_machine = struct.unpack('H', data[18:20])[0]
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self.e_version = struct.unpack('I', data[20:24])[0]
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self.e_entry = struct.unpack('Q', data[24:32])[0]
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self.e_phoff = struct.unpack('Q', data[32:40])[0]
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self.e_shoff = struct.unpack('Q', data[40:48])[0]
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self.e_flags = struct.unpack('I', data[48:52])[0]
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self.e_ehsize = struct.unpack('H', data[52:54])[0]
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self.e_phentsize = struct.unpack('H', data[54:56])[0]
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self.e_phnum = struct.unpack('H', data[56:58])[0]
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self.e_shentsize = struct.unpack('H', data[58:60])[0]
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self.e_shnum = struct.unpack('H', data[60:62])[0]
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self.e_shstrndx = struct.unpack('H', data[62:64])[0]
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def pack(self):
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# Pack the ELF header data into a binary string
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data = b''
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data += struct.pack('16s', self.e_ident)
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data += struct.pack('H', self.e_type)
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data += struct.pack('H', self.e_machine)
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data += struct.pack('I', self.e_version)
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data += struct.pack('Q', self.e_entry)
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data += struct.pack('Q', self.e_phoff)
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data += struct.pack('Q', self.e_shoff)
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data += struct.pack('I', self.e_flags)
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data += struct.pack('H', self.e_ehsize)
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data += struct.pack('H', self.e_phentsize)
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data += struct.pack('H', self.e_phnum)
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data += struct.pack('H', self.e_shentsize)
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data += struct.pack('H', self.e_shnum)
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data += struct.pack('H', self.e_shstrndx)
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return data
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class Elf64_Phdr:
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def __init__(self, data):
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self.p_type = struct.unpack("<L", data[0:4])[0]
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self.p_flags = struct.unpack("<L", data[4:8])[0]
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self.p_offset = struct.unpack("<Q", data[8:16])[0]
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self.p_vaddr = struct.unpack("<Q", data[16:24])[0]
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self.p_paddr = struct.unpack("<Q", data[24:32])[0]
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self.p_filesz = struct.unpack("<Q", data[32:40])[0]
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self.p_memsz = struct.unpack("<Q", data[40:48])[0]
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self.p_align = struct.unpack("<Q", data[48:56])[0]
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def pack(self):
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# Pack the Program header table into a binary string
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data = b''
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data += struct.pack('<L', self.p_type)
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data += struct.pack('<L', self.p_flags)
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data += struct.pack('<Q', self.p_offset)
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data += struct.pack('<Q', self.p_vaddr)
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data += struct.pack('<Q', self.p_paddr)
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data += struct.pack('<Q', self.p_filesz)
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data += struct.pack('<Q', self.p_memsz)
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data += struct.pack('<Q', self.p_align)
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return data
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class ElfSectionHeader32:
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def __init__(self, sh_name, sh_type, sh_flags, sh_addr, sh_offset, sh_size, sh_link, sh_info, sh_addralign, sh_entsize):
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self.sh_name = sh_name
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self.sh_type = sh_type
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self.sh_flags = sh_flags
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self.sh_addr = sh_addr
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self.sh_offset = sh_offset
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self.sh_size = sh_size
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self.sh_link = sh_link
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self.sh_info = sh_info
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self.sh_addralign = sh_addralign
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self.sh_entsize = sh_entsize
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def pack(self):
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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)
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@classmethod
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def unpack(cls, data):
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unpacked_data = struct.unpack('<IIIIIIIIII', data)
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return cls(*unpacked_data)
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class ElfHeader32:
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def __init__(self, data):
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# Parse the ELF identification bytes
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self.e_ident = struct.unpack('16s', data[:16])[0]
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self.e_type = struct.unpack('H', data[16:18])[0]
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self.e_machine = struct.unpack('H', data[18:20])[0]
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self.e_version = struct.unpack('I', data[20:24])[0]
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self.e_entry = struct.unpack('I', data[24:28])[0]
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self.e_phoff = struct.unpack('I', data[28:32])[0]
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self.e_shoff = struct.unpack('I', data[32:36])[0]
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self.e_flags = struct.unpack('I', data[36:40])[0]
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self.e_ehsize = struct.unpack('H', data[40:42])[0]
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self.e_phentsize = struct.unpack('H', data[42:44])[0]
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self.e_phnum = struct.unpack('H', data[44:46])[0]
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self.e_shentsize = struct.unpack('H', data[46:48])[0]
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self.e_shnum = struct.unpack('H', data[48:50])[0]
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self.e_shstrndx = struct.unpack('H', data[50:52])[0]
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def pack(self):
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# Pack the ELF header data into a binary string
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data = b''
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data += struct.pack('16s', self.e_ident)
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data += struct.pack('H', self.e_type)
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data += struct.pack('H', self.e_machine)
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data += struct.pack('I', self.e_version)
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data += struct.pack('I', self.e_entry)
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data += struct.pack('I', self.e_phoff)
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data += struct.pack('I', self.e_shoff)
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data += struct.pack('I', self.e_flags)
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data += struct.pack('H', self.e_ehsize)
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data += struct.pack('H', self.e_phentsize)
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data += struct.pack('H', self.e_phnum)
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data += struct.pack('H', self.e_shentsize)
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data += struct.pack('H', self.e_shnum)
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data += struct.pack('H', self.e_shstrndx)
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return data
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class Elf32_Phdr:
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def __init__(self, data):
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self.p_type = struct.unpack("<L", data[0:4])[0]
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self.p_offset = struct.unpack("<L", data[4:8])[0]
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self.p_vaddr = struct.unpack("<L", data[8:12])[0]
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self.p_paddr = struct.unpack("<L", data[12:16])[0]
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self.p_filesz = struct.unpack("<L", data[16:20])[0]
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self.p_memsz = struct.unpack("<L", data[20:24])[0]
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self.p_flags = struct.unpack("<L", data[24:28])[0]
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self.p_align = struct.unpack("<L", data[28:32])[0]
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def pack(self):
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# Pack the Program header table into a binary string
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data = b''
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data += struct.pack('<L', self.p_type)
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data += struct.pack('<L', self.p_offset)
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data += struct.pack('<L', self.p_vaddr)
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data += struct.pack('<L', self.p_paddr)
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data += struct.pack('<L', self.p_filesz)
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data += struct.pack('<L', self.p_memsz)
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data += struct.pack('<L', self.p_flags)
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data += struct.pack('<L', self.p_align)
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return data
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def SectionAlignment(NewUPLEntry, AlignmentIndex):
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# Section entry Alignment
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# Alignment is transfer to integer if AlignmentIndex is string.
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if isinstance(AlignmentIndex, str):
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int_num = int(AlignmentIndex, 16)
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int_num = 10 * (int_num//16) + int_num % 16
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else:
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int_num = AlignmentIndex
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if (int_num != 0 or int_num != 1):
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if ((len(NewUPLEntry) % int_num) != 0):
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AlignNumber = int_num - (len(NewUPLEntry) % int_num)
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if (AlignNumber != 0):
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for x in range(AlignNumber):
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NewUPLEntry = NewUPLEntry + bytearray(b'\0')
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return NewUPLEntry
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def SectionEntryFill(SectionEntry, Alignment, Value, Offset):
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# Alignment
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n = 0
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if (len (Value) < Alignment):
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Value = Value.zfill(Alignment)
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for x in range(0, (Alignment//2)):
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Index = '0x' + Value[n] + Value[n + 1]
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SectionEntry[Offset - x] = int(Index,16)
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n += 2
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return SectionEntry
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def ElfHeaderParser(UPLEntry):
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# Read EI_CLASS, it stores information that elf with 32-bit or 64-bit architectures.
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EI_CLASS = UPLEntry[4]
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# If Elf is 64-bit objects.
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if (EI_CLASS == 2):
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# Elf header is stored at 0x0-0x40 in 64-bits objects
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ElfHeaderData = UPLEntry[:64]
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# If Elf is 32-bit objects.
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else:
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# Elf header is stored at 0x0-0x34 in 32-bits objects
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ElfHeaderData = UPLEntry[:53]
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# If Elf is 64-bit objects.
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if (EI_CLASS == 2):
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elf_header = ElfHeader64(ElfHeaderData)
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ElfHeaderOffset = elf_header.e_shoff
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SectionHeaderEntryNumber = elf_header.e_shnum
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StringIndexNumber = elf_header.e_shstrndx
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SectionHeaderEntrySize = elf_header.e_shentsize
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StringIndexEntryOffset = ElfHeaderOffset + (StringIndexNumber * SectionHeaderEntrySize)
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unpacked_header = ElfSectionHeader64.unpack(UPLEntry[StringIndexEntryOffset: (StringIndexEntryOffset + SectionHeaderEntrySize)])
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StringIndexSize = unpacked_header.sh_size
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StringIndexOffset = unpacked_header.sh_offset
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# If elf is 32-bit objects.
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else:
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elf_header = ElfHeader32(ElfHeaderData)
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ElfHeaderOffset = elf_header.e_shoff
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SectionHeaderEntryNumber = elf_header.e_shnum
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StringIndexNumber = elf_header.e_shstrndx
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SectionHeaderEntrySize = elf_header.e_shentsize
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StringIndexEntryOffset = ElfHeaderOffset + (StringIndexNumber * SectionHeaderEntrySize)
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unpacked_header = ElfSectionHeader32.unpack(UPLEntry[StringIndexEntryOffset: (StringIndexEntryOffset + SectionHeaderEntrySize)])
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StringIndexSize = unpacked_header.sh_size
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StringIndexOffset = unpacked_header.sh_offset
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return ElfHeaderOffset, SectionHeaderEntryNumber, StringIndexNumber, StringIndexEntryOffset, StringIndexSize, SectionHeaderEntrySize, StringIndexOffset, EI_CLASS
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def FindSection(UPLEntry, SectionName):
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ElfHeaderOffset, SectionHeaderEntryNumber, StringIndexNumber, _, StringIndexSize, SectionHeaderEntrySize, StringIndexOffset, EI_CLASS = ElfHeaderParser(UPLEntry)
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# StringIndex is String Index section
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StringIndex = UPLEntry[StringIndexOffset:StringIndexOffset+StringIndexSize]
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# Section header isn't exist if SectionNameOffset = -1.
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StringIndex = StringIndex.decode('utf-8', errors='ignore')
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SectionNameOffset = StringIndex.find(SectionName)
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return SectionNameOffset, ElfHeaderOffset, SectionHeaderEntrySize, SectionHeaderEntryNumber, StringIndexOffset, StringIndexNumber, EI_CLASS
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def AddNewSectionEntry64(LastUPLEntrylen, StringIndexValue, SectionSize, Alignment):
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# If elf is 64-bit objects.
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NewSectionEntry = ElfSectionHeader64 (StringIndexValue, 1, 0, 0, LastUPLEntrylen, SectionSize, 0, 0, Alignment, 0)
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sh_bytes = NewSectionEntry.pack()
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return sh_bytes
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def AddNewSectionEntry32(LastUPLEntrylen, StringIndexValue, SectionSize, Alignment):
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# If elf is 32-bit objects.
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NewSectionEntry = ElfSectionHeader32 (StringIndexValue, 1, 0, 0, LastUPLEntrylen, SectionSize, 0, 0, Alignment, 0)
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sh_bytes = NewSectionEntry.pack()
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return sh_bytes
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def AddSectionHeader64(SHentry, NewUPLEntrylen, SectionHeaderEntrySize, Index, RemoveNameOffset, SectionName, StringIndexNumber):
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SHentry = bytearray(SHentry)
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unpacked_header = ElfSectionHeader64.unpack(SHentry[(Index * SectionHeaderEntrySize):((Index * SectionHeaderEntrySize) + SectionHeaderEntrySize)])
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# Section header of section 0 shows 0. It don't modify any offset.
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if (Index != 0):
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# read section offset.
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unpacked_header.sh_offset = NewUPLEntrylen
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# Modify offset of name in section entry
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# if RemoveNameOffset != 0 that is remove function.
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if (RemoveNameOffset != 0):
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if (unpacked_header.sh_name > RemoveNameOffset):
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unpacked_header.sh_name -= RemoveNameOffset
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# Modify size of name string section entry in section entry.
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if (Index == StringIndexNumber):
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unpacked_header.sh_size -= len (SectionName)
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# added section
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else :
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if (Index == StringIndexNumber):
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unpacked_header.sh_size += len (SectionName)
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NewSHentry = ElfSectionHeader64 (
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unpacked_header.sh_name,
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unpacked_header.sh_type,
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unpacked_header.sh_flags,
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unpacked_header.sh_addr,
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unpacked_header.sh_offset,
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unpacked_header.sh_size,
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unpacked_header.sh_link,
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unpacked_header.sh_info,
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unpacked_header.sh_addralign,
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unpacked_header.sh_entsize).pack()
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return NewSHentry
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def AddSectionHeader32(SHentry, NewUPLEntrylen, SectionHeaderEntrySize, Index, RemoveNameOffset, SectionName, StringIndexNumber):
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SHentry = bytearray(SHentry)
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unpacked_header = ElfSectionHeader32.unpack(SHentry[(Index * SectionHeaderEntrySize):((Index * SectionHeaderEntrySize) + SectionHeaderEntrySize)])
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if (Index != 0):
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NewSHentry = SHentry[(Index * SectionHeaderEntrySize):((Index * SectionHeaderEntrySize) + SectionHeaderEntrySize)]
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unpacked_header.sh_offset = NewUPLEntrylen
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# Modify offset of name in section entry
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# if RemoveNameOffset != 0 that is remove function.
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if (RemoveNameOffset != 0):
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if (unpacked_header.sh_name > RemoveNameOffset):
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unpacked_header.sh_name -= RemoveNameOffset
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# Modify size of name string section entry in section entry.
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if (Index == StringIndexNumber):
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unpacked_header.sh_size -= len (SectionName)
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# added section
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else :
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if (Index == StringIndexNumber):
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unpacked_header.sh_size += len (SectionName)
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NewSHentry = ElfSectionHeader32 (
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unpacked_header.sh_name,
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unpacked_header.sh_type,
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unpacked_header.sh_flags,
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unpacked_header.sh_addr,
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unpacked_header.sh_offset,
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unpacked_header.sh_size,
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unpacked_header.sh_link,
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unpacked_header.sh_info,
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unpacked_header.sh_addralign,
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unpacked_header.sh_entsize).pack()
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return NewSHentry
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def ModifyPHSegmentOffset64(NewUPLEntry, ElfHeaderOffset, PHSegmentName):
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# Modify offset and address of program header tables.
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elf_header = ElfHeader64(NewUPLEntry[:64])
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SHentry = NewUPLEntry[ElfHeaderOffset:]
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# Elf program header tables start from 0x40 in 64-bits objects
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PHentry = NewUPLEntry[64: 64 + (elf_header.e_phnum * elf_header.e_phentsize)]
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PHdrs = []
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SHdrs = []
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for i in range(elf_header.e_shnum):
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SHData = SHentry[(i * elf_header.e_shentsize): (i * elf_header.e_shentsize) + elf_header.e_shentsize]
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unpacked_SectionHeader = ElfSectionHeader64.unpack(SHData)
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SHdrs.append(unpacked_SectionHeader)
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for i in range(elf_header.e_phnum):
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PHData = PHentry[(i * elf_header.e_phentsize): (i * elf_header.e_phentsize) + elf_header.e_phentsize]
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unpacked_ProgramHeader = Elf64_Phdr(PHData)
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PHdrs.append(unpacked_ProgramHeader)
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if (PHSegmentName == '.text'):
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PHdrs[0].p_offset = SHdrs[1].sh_offset
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PHdrs[0].p_paddr = SHdrs[1].sh_addr
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PHdrs[4].p_offset = SHdrs[1].sh_offset
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PHdrs[4].p_paddr = SHdrs[1].sh_addr
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elif (PHSegmentName == '.dynamic'):
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PHdrs[1].p_offset = SHdrs[2].sh_offset
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PHdrs[1].p_paddr = SHdrs[2].sh_addr
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PHdrs[3].p_offset = SHdrs[2].sh_offset
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PHdrs[3].p_paddr = SHdrs[2].sh_addr
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elif (PHSegmentName == '.data'):
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PHdrs[2].p_offset = SHdrs[3].sh_offset
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PHdrs[2].p_paddr = SHdrs[3].sh_addr
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packed_PHData = b''
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for phdr in PHdrs:
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||||
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
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
## @file
|
||||
# This file is used to replace FV.
|
||||
#
|
||||
# Copyright (c) 2023, Intel Corporation. All rights reserved.<BR>
|
||||
# SPDX-License-Identifier: BSD-2-Clause-Patent
|
||||
##
|
||||
|
|
@ -18,6 +18,7 @@
|
|||
],
|
||||
## Both file path and directory path are accepted.
|
||||
"IgnoreFiles": [
|
||||
"Tools/",
|
||||
"Include/Coreboot.h",
|
||||
"Library/CbParseLib/CbParseLib.c",
|
||||
"PayloadLoaderPeim/ElfLib/ElfCommon.h",
|
||||
|
|
|
|||
|
|
@ -11,7 +11,7 @@ import os
|
|||
import shutil
|
||||
import sys
|
||||
from ctypes import *
|
||||
|
||||
from Tools.ElfFv import ReplaceFv
|
||||
sys.dont_write_bytecode = True
|
||||
|
||||
class UPLD_INFO_HEADER(LittleEndianStructure):
|
||||
|
|
@ -36,106 +36,56 @@ class UPLD_INFO_HEADER(LittleEndianStructure):
|
|||
self.ImageId = b'UEFI'
|
||||
self.ProducerId = b'INTEL'
|
||||
|
||||
def GenSpecRevision (Argument):
|
||||
try:
|
||||
(MajorStr, MinorStr) = Argument.split('.')
|
||||
except:
|
||||
raise argparse.ArgumentTypeError ('{} is not a valid SpecRevision format (Major[8-bits].Minor[8-bits]).'.format (Argument))
|
||||
#
|
||||
# Spec Revision Bits 15 : 8 - Major Version. Bits 7 : 0 - Minor Version.
|
||||
#
|
||||
if len(MinorStr) > 0 and len(MinorStr) < 3:
|
||||
try:
|
||||
Minor = int(MinorStr, 16) if len(MinorStr) == 2 else (int(MinorStr, 16) << 4)
|
||||
except:
|
||||
raise argparse.ArgumentTypeError ('{} Minor version of SpecRevision is not a valid integer value.'.format (Argument))
|
||||
else:
|
||||
raise argparse.ArgumentTypeError ('{} is not a valid SpecRevision format (Major[8-bits].Minor[8-bits]).'.format (Argument))
|
||||
def BuildUniversalPayload(Args):
|
||||
def RunCommand(cmd):
|
||||
print(cmd)
|
||||
p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT,cwd=os.environ['WORKSPACE'])
|
||||
while True:
|
||||
line = p.stdout.readline()
|
||||
if not line:
|
||||
break
|
||||
print(line.strip().decode(errors='ignore'))
|
||||
|
||||
if len(MajorStr) > 0 and len(MajorStr) < 3:
|
||||
try:
|
||||
Major = int(MajorStr, 16)
|
||||
except:
|
||||
raise argparse.ArgumentTypeError ('{} Major version of SpecRevision is not a valid integer value.'.format (Argument))
|
||||
else:
|
||||
raise argparse.ArgumentTypeError ('{} is not a valid SpecRevision format (Major[8-bits].Minor[8-bits]).'.format (Argument))
|
||||
p.communicate()
|
||||
if p.returncode != 0:
|
||||
print("- Failed - error happened when run command: %s"%cmd)
|
||||
raise Exception("ERROR: when run command: %s"%cmd)
|
||||
|
||||
return int('0x{0:02x}{1:02x}'.format(Major, Minor), 0)
|
||||
|
||||
def Validate32BitInteger (Argument):
|
||||
try:
|
||||
Value = int (Argument, 0)
|
||||
except:
|
||||
raise argparse.ArgumentTypeError ('{} is not a valid integer value.'.format (Argument))
|
||||
if Value < 0:
|
||||
raise argparse.ArgumentTypeError ('{} is a negative value.'.format (Argument))
|
||||
if Value > 0xffffffff:
|
||||
raise argparse.ArgumentTypeError ('{} is larger than 32-bits.'.format (Argument))
|
||||
return Value
|
||||
|
||||
def RunCommand(cmd):
|
||||
print(cmd)
|
||||
p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT,cwd=os.environ['WORKSPACE'])
|
||||
while True:
|
||||
line = p.stdout.readline()
|
||||
if not line:
|
||||
break
|
||||
print(line.strip().decode(errors='ignore'))
|
||||
|
||||
p.communicate()
|
||||
if p.returncode != 0:
|
||||
print("- Failed - error happened when run command: %s"%cmd)
|
||||
raise Exception("ERROR: when run command: %s"%cmd)
|
||||
|
||||
def BuildUniversalPayload(Args, MacroList):
|
||||
BuildTarget = Args.Target
|
||||
ToolChain = Args.ToolChain
|
||||
Quiet = "--quiet" if Args.Quiet else ""
|
||||
ElfToolChain = 'CLANGDWARF'
|
||||
BuildDir = os.path.join(os.environ['WORKSPACE'], os.path.normpath("Build/UefiPayloadPkgX64"))
|
||||
BuildModule = ""
|
||||
BuildArch = ""
|
||||
if Args.Arch == 'X64':
|
||||
BuildArch = "X64"
|
||||
ObjCopyFlag = "elf64-x86-64"
|
||||
EntryOutputDir = os.path.join(BuildDir, "{}_{}".format (BuildTarget, ElfToolChain), os.path.normpath("X64/UefiPayloadPkg/UefiPayloadEntry/UniversalPayloadEntry/DEBUG/UniversalPayloadEntry.dll"))
|
||||
else:
|
||||
BuildArch = "IA32 -a X64"
|
||||
ObjCopyFlag = "elf32-i386"
|
||||
EntryOutputDir = os.path.join(BuildDir, "{}_{}".format (BuildTarget, ElfToolChain), os.path.normpath("IA32/UefiPayloadPkg/UefiPayloadEntry/UniversalPayloadEntry/DEBUG/UniversalPayloadEntry.dll"))
|
||||
|
||||
if Args.PreBuildUplBinary is not None:
|
||||
EntryOutputDir = os.path.abspath(Args.PreBuildUplBinary)
|
||||
EntryModuleInf = os.path.normpath("UefiPayloadPkg/UefiPayloadEntry/UniversalPayloadEntry.inf")
|
||||
DscPath = os.path.normpath("UefiPayloadPkg/UefiPayloadPkg.dsc")
|
||||
DxeFvOutputDir = os.path.join(BuildDir, "{}_{}".format (BuildTarget, ToolChain), os.path.normpath("FV/DXEFV.Fv"))
|
||||
BdsFvOutputDir = os.path.join(BuildDir, "{}_{}".format (BuildTarget, ToolChain), os.path.normpath("FV/BDSFV.Fv"))
|
||||
NetworkFvOutputDir = os.path.join(BuildDir, "{}_{}".format (BuildTarget, ToolChain), os.path.normpath("FV/NETWORKFV.Fv"))
|
||||
PayloadReportPath = os.path.join(BuildDir, "UefiUniversalPayload.txt")
|
||||
ModuleReportPath = os.path.join(BuildDir, "UefiUniversalPayloadEntry.txt")
|
||||
UpldInfoFile = os.path.join(BuildDir, "UniversalPayloadInfo.bin")
|
||||
|
||||
if "CLANG_BIN" in os.environ:
|
||||
LlvmObjcopyPath = os.path.join(os.environ["CLANG_BIN"], "llvm-objcopy")
|
||||
else:
|
||||
LlvmObjcopyPath = "llvm-objcopy"
|
||||
try:
|
||||
RunCommand('"%s" --version'%LlvmObjcopyPath)
|
||||
except:
|
||||
print("- Failed - Please check if LLVM is installed or if CLANG_BIN is set correctly")
|
||||
sys.exit(1)
|
||||
|
||||
Pcds = ""
|
||||
if (Args.pcd != None):
|
||||
for PcdItem in Args.pcd:
|
||||
Pcds += " --pcd {}".format (PcdItem)
|
||||
|
||||
Defines = ""
|
||||
for key in MacroList:
|
||||
Defines +=" -D {0}={1}".format(key, MacroList[key])
|
||||
if (Args.Macro != None):
|
||||
for MacroItem in Args.Macro:
|
||||
Defines += " -D {}".format (MacroItem)
|
||||
|
||||
#
|
||||
# Building DXE core and DXE drivers as DXEFV.
|
||||
#
|
||||
if Args.BuildEntryOnly == False:
|
||||
PayloadReportPath = os.path.join(BuildDir, "UefiUniversalPayload.txt")
|
||||
BuildPayload = "build -p {} -b {} -a X64 -t {} -y {} {}".format (DscPath, BuildTarget, ToolChain, PayloadReportPath, Quiet)
|
||||
BuildPayload += Pcds
|
||||
BuildPayload += Defines
|
||||
|
|
@ -144,6 +94,7 @@ def BuildUniversalPayload(Args, MacroList):
|
|||
# Building Universal Payload entry.
|
||||
#
|
||||
if Args.PreBuildUplBinary is None:
|
||||
EntryModuleInf = os.path.normpath("UefiPayloadPkg/UefiPayloadEntry/UniversalPayloadEntry.inf")
|
||||
BuildModule = "build -p {} -b {} -a {} -m {} -t {} -y {} {}".format (DscPath, BuildTarget, BuildArch, EntryModuleInf, ElfToolChain, ModuleReportPath, Quiet)
|
||||
BuildModule += Pcds
|
||||
BuildModule += Defines
|
||||
|
|
@ -151,59 +102,80 @@ def BuildUniversalPayload(Args, MacroList):
|
|||
#
|
||||
# Buid Universal Payload Information Section ".upld_info"
|
||||
#
|
||||
upld_info_hdr = UPLD_INFO_HEADER()
|
||||
upld_info_hdr = UPLD_INFO_HEADER()
|
||||
upld_info_hdr.SpecRevision = Args.SpecRevision
|
||||
upld_info_hdr.Revision = Args.Revision
|
||||
upld_info_hdr.ProducerId = Args.ProducerId.encode()[:16]
|
||||
upld_info_hdr.ImageId = Args.ImageId.encode()[:16]
|
||||
upld_info_hdr.Attribute |= 1 if BuildTarget == "DEBUG" else 0
|
||||
upld_info_hdr.Revision = Args.Revision
|
||||
upld_info_hdr.ProducerId = Args.ProducerId.encode()[:16]
|
||||
upld_info_hdr.ImageId = Args.ImageId.encode()[:16]
|
||||
upld_info_hdr.Attribute |= 1 if BuildTarget == "DEBUG" else 0
|
||||
fp = open(UpldInfoFile, 'wb')
|
||||
fp.write(bytearray(upld_info_hdr))
|
||||
fp.close()
|
||||
|
||||
MultiFvList = []
|
||||
if Args.BuildEntryOnly == False:
|
||||
#
|
||||
# Copy the DXEFV as a section in elf format Universal Payload entry.
|
||||
#
|
||||
remove_section = '"{}" -I {} -O {} --remove-section .upld_info --remove-section .upld.uefi_fv --remove-section .upld.bds_fv {}'.format (
|
||||
LlvmObjcopyPath,
|
||||
ObjCopyFlag,
|
||||
ObjCopyFlag,
|
||||
EntryOutputDir
|
||||
)
|
||||
add_section = '"{}" -I {} -O {} --add-section .upld_info={} --add-section .upld.uefi_fv={} --add-section .upld.bds_fv={} {}'.format (
|
||||
LlvmObjcopyPath,
|
||||
ObjCopyFlag,
|
||||
ObjCopyFlag,
|
||||
UpldInfoFile,
|
||||
DxeFvOutputDir,
|
||||
BdsFvOutputDir,
|
||||
EntryOutputDir
|
||||
)
|
||||
set_section = '"{}" -I {} -O {} --set-section-alignment .upld_info=4 --set-section-alignment .upld.uefi_fv=16 --set-section-alignment .upld.bds_fv=16 {}'.format (
|
||||
LlvmObjcopyPath,
|
||||
ObjCopyFlag,
|
||||
ObjCopyFlag,
|
||||
EntryOutputDir
|
||||
)
|
||||
#
|
||||
# Append network fv to sections if exists
|
||||
#
|
||||
if os.path.isfile(NetworkFvOutputDir):
|
||||
index = remove_section.find(EntryOutputDir)
|
||||
remove_section = remove_section[:index] + '--remove-section .upld.network_fv ' + remove_section[index:]
|
||||
index = add_section.find(EntryOutputDir)
|
||||
add_section = add_section[:index] + '--add-section .upld.network_fv=' + NetworkFvOutputDir + ' ' + add_section[index:]
|
||||
index = set_section.find(EntryOutputDir)
|
||||
set_section = set_section[:index] + '--set-section-alignment .upld.network_fv=16 ' + set_section[index:]
|
||||
|
||||
RunCommand(remove_section)
|
||||
RunCommand(add_section)
|
||||
RunCommand(set_section)
|
||||
MultiFvList = [
|
||||
['uefi_fv', os.path.join(BuildDir, "{}_{}".format (BuildTarget, ToolChain), os.path.normpath("FV/DXEFV.Fv")) ],
|
||||
['bds_fv', os.path.join(BuildDir, "{}_{}".format (BuildTarget, ToolChain), os.path.normpath("FV/BDSFV.Fv")) ],
|
||||
['network_fv', os.path.join(BuildDir, "{}_{}".format (BuildTarget, ToolChain), os.path.normpath("FV/NETWORKFV.Fv")) ],
|
||||
]
|
||||
AddSectionName = '.upld_info'
|
||||
ReplaceFv (EntryOutputDir, UpldInfoFile, AddSectionName, Alignment = 4)
|
||||
|
||||
shutil.copy (EntryOutputDir, os.path.join(BuildDir, 'UniversalPayload.elf'))
|
||||
|
||||
return MultiFvList, os.path.join(BuildDir, 'UniversalPayload.elf')
|
||||
|
||||
def main():
|
||||
def ValidateSpecRevision (Argument):
|
||||
try:
|
||||
(MajorStr, MinorStr) = Argument.split('.')
|
||||
except:
|
||||
raise argparse.ArgumentTypeError ('{} is not a valid SpecRevision format (Major[8-bits].Minor[8-bits]).'.format (Argument))
|
||||
#
|
||||
# Spec Revision Bits 15 : 8 - Major Version. Bits 7 : 0 - Minor Version.
|
||||
#
|
||||
if len(MinorStr) > 0 and len(MinorStr) < 3:
|
||||
try:
|
||||
Minor = int(MinorStr, 16) if len(MinorStr) == 2 else (int(MinorStr, 16) << 4)
|
||||
except:
|
||||
raise argparse.ArgumentTypeError ('{} Minor version of SpecRevision is not a valid integer value.'.format (Argument))
|
||||
else:
|
||||
raise argparse.ArgumentTypeError ('{} is not a valid SpecRevision format (Major[8-bits].Minor[8-bits]).'.format (Argument))
|
||||
|
||||
if len(MajorStr) > 0 and len(MajorStr) < 3:
|
||||
try:
|
||||
Major = int(MajorStr, 16)
|
||||
except:
|
||||
raise argparse.ArgumentTypeError ('{} Major version of SpecRevision is not a valid integer value.'.format (Argument))
|
||||
else:
|
||||
raise argparse.ArgumentTypeError ('{} is not a valid SpecRevision format (Major[8-bits].Minor[8-bits]).'.format (Argument))
|
||||
|
||||
return int('0x{0:02x}{1:02x}'.format(Major, Minor), 0)
|
||||
|
||||
def Validate32BitInteger (Argument):
|
||||
try:
|
||||
Value = int (Argument, 0)
|
||||
except:
|
||||
raise argparse.ArgumentTypeError ('{} is not a valid integer value.'.format (Argument))
|
||||
if Value < 0:
|
||||
raise argparse.ArgumentTypeError ('{} is a negative value.'.format (Argument))
|
||||
if Value > 0xffffffff:
|
||||
raise argparse.ArgumentTypeError ('{} is larger than 32-bits.'.format (Argument))
|
||||
return Value
|
||||
|
||||
def ValidateAddFv (Argument):
|
||||
Value = Argument.split ("=")
|
||||
if len (Value) != 2:
|
||||
raise argparse.ArgumentTypeError ('{} is incorrect format with "xxx_fv=xxx.fv"'.format (Argument))
|
||||
if Value[0][-3:] != "_fv":
|
||||
raise argparse.ArgumentTypeError ('{} is incorrect format with "xxx_fv=xxx.fv"'.format (Argument))
|
||||
if Value[1][-3:].lower () != ".fv":
|
||||
raise argparse.ArgumentTypeError ('{} is incorrect format with "xxx_fv=xxx.fv"'.format (Argument))
|
||||
if os.path.exists (Value[1]) == False:
|
||||
raise argparse.ArgumentTypeError ('File {} is not found.'.format (Value[1]))
|
||||
return Value
|
||||
|
||||
parser = argparse.ArgumentParser(description='For building Universal Payload')
|
||||
parser.add_argument('-t', '--ToolChain')
|
||||
parser.add_argument('-b', '--Target', default='DEBUG')
|
||||
|
|
@ -212,22 +184,32 @@ def main():
|
|||
parser.add_argument('-i', '--ImageId', type=str, help='Specify payload ID (16 bytes maximal).', default ='UEFI')
|
||||
parser.add_argument('-q', '--Quiet', action='store_true', help='Disable all build messages except FATAL ERRORS.')
|
||||
parser.add_argument("-p", "--pcd", action="append")
|
||||
parser.add_argument("-s", "--SpecRevision", type=GenSpecRevision, default ='0.7', help='Indicates compliance with a revision of this specification in the BCD format.')
|
||||
parser.add_argument("-s", "--SpecRevision", type=ValidateSpecRevision, default ='0.7', help='Indicates compliance with a revision of this specification in the BCD format.')
|
||||
parser.add_argument("-r", "--Revision", type=Validate32BitInteger, default ='0x0000010105', help='Revision of the Payload binary. Major.Minor.Revision.Build')
|
||||
parser.add_argument("-o", "--ProducerId", default ='INTEL', help='A null-terminated OEM-supplied string that identifies the payload producer (16 bytes maximal).')
|
||||
parser.add_argument("-e", "--BuildEntryOnly", action='store_true', help='Build UniversalPayload Entry file')
|
||||
parser.add_argument("-pb", "--PreBuildUplBinary", default=None, help='Specify the UniversalPayload file')
|
||||
MacroList = {}
|
||||
parser.add_argument("-sk", "--SkipBuild", action='store_true', help='Skip UniversalPayload build')
|
||||
parser.add_argument("-af", "--AddFv", type=ValidateAddFv, action='append', help='Add or replace specific FV into payload, Ex: uefi_fv=XXX.fv')
|
||||
args = parser.parse_args()
|
||||
if args.Macro is not None:
|
||||
for Argument in args.Macro:
|
||||
if Argument.count('=') != 1:
|
||||
print("Unknown variable passed in: %s"%Argument)
|
||||
raise Exception("ERROR: Unknown variable passed in: %s"%Argument)
|
||||
tokens = Argument.strip().split('=')
|
||||
MacroList[tokens[0].upper()] = tokens[1]
|
||||
BuildUniversalPayload(args, MacroList)
|
||||
print ("Successfully build Universal Payload")
|
||||
|
||||
MultiFvList = []
|
||||
UniversalPayloadBinary = args.PreBuildUplBinary
|
||||
if (args.SkipBuild == False):
|
||||
MultiFvList, UniversalPayloadBinary = BuildUniversalPayload(args)
|
||||
|
||||
if (args.AddFv != None):
|
||||
for (SectionName, SectionFvFile) in args.AddFv:
|
||||
MultiFvList.append ([SectionName, SectionFvFile])
|
||||
|
||||
if (UniversalPayloadBinary != None):
|
||||
for (SectionName, SectionFvFile) in MultiFvList:
|
||||
if os.path.exists (SectionFvFile) == False:
|
||||
continue
|
||||
print ("Patch {}={} into {}".format (SectionName, SectionFvFile, UniversalPayloadBinary))
|
||||
ReplaceFv (UniversalPayloadBinary, SectionFvFile, '.upld.{}'.format (SectionName))
|
||||
|
||||
print ("\nSuccessfully build Universal Payload")
|
||||
|
||||
if __name__ == '__main__':
|
||||
main()
|
||||
|
|
|
|||
Loading…
Reference in New Issue