129 lines
3.8 KiB
Ruby
129 lines
3.8 KiB
Ruby
# This file is part of Metasm, the Ruby assembly manipulation suite
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# Copyright (C) 2006-2009 Yoann GUILLOT
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#
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# Licence is LGPL, see LICENCE in the top-level directory
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Metasmdir = File.dirname(__FILE__)
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$:.unshift(Metasmdir)
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##
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# The code below is used to do demand loading of requires, but it breaks
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# Metasploit integration. It has been commented out until a better
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# long-term solution is developed.
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##
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=begin
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module Metasm
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# root directory for metasm files
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# used by some scripts, eg to find samples/dasm-plugin directory
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Metasmdir = File.dirname(__FILE__)
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# constant defined in the same file as another
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Const_autorequire_equiv = {
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'X86' => 'Ia32', 'PPC' => 'PowerPC',
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'X64' => 'X86_64', 'AMD64' => 'X86_64',
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'UniversalBinary' => 'MachO', 'COFFArchive' => 'COFF',
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'DEY' => 'DEX',
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'PTrace' => 'LinOS', 'FatELF' => 'ELF',
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'LoadedELF' => 'ELF', 'LoadedPE' => 'PE',
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'LoadedAutoExe' => 'AutoExe',
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'LinuxRemoteString' => 'LinOS',
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'LinDebugger' => 'LinOS',
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'WinAPI' => 'WinOS',
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'WindowsRemoteString' => 'WinOS', 'WinDbgAPI' => 'WinOS',
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'WinDebugger' => 'WinOS',
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'VirtualFile' => 'OS', 'VirtualString' => 'OS',
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'GdbRemoteString' => 'GdbClient', 'GdbRemoteDebugger' => 'GdbClient',
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'DecodedInstruction' => 'Disassembler', 'DecodedFunction' => 'Disassembler',
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'InstructionBlock' => 'Disassembler',
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}
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Const_autorequire = {
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'CPU' => ['encode', 'decode', 'render', 'main', 'exe_format/main', 'os/main'],
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'Ia32' => 'ia32', 'MIPS' => 'mips', 'PowerPC' => 'ppc', 'ARM' => 'arm',
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'X86_64' => 'x86_64', 'Sh4' => 'sh4', 'Dalvik' => 'dalvik',
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'C' => ['parse_c', 'compile_c'],
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'MZ' => 'exe_format/mz', 'PE' => 'exe_format/pe',
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'ELF' => 'exe_format/elf', 'COFF' => 'exe_format/coff',
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'Shellcode' => 'exe_format/shellcode', 'AutoExe' => 'exe_format/autoexe',
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'AOut' => 'exe_format/a_out', 'MachO' => 'exe_format/macho',
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'DEX' => 'exe_format/dex',
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'NDS' => 'exe_format/nds', 'XCoff' => 'exe_format/xcoff',
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'Bflt' => 'exe_format/bflt', 'Dol' => 'exe_format/dol',
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'Gui' => 'gui',
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'WindowsExports' => 'os/windows_exports',
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'GNUExports' => 'os/gnu_exports',
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'LinOS' => 'os/linux', 'WinOS' => 'os/windows',
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'GdbClient' => 'os/remote',
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'Disassembler' => 'disassemble',
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'Decompiler' => 'decompile',
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'DynLdr' => 'dynldr',
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}
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def self.autorequire_const_missing(c)
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cst = Const_autorequire_equiv[c.to_s] || c.to_s
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files = Const_autorequire[cst]
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return if not files
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files = [files] if files.kind_of? ::String
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files.each { |f| require ::File.join('metasm', f) }
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const_get c
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end
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def self.require(f)
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# temporarily put the current file directory in the ruby include path
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if not $:.include? Metasmdir
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incdir = Metasmdir
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$: << incdir
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end
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super(f)
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$:.delete incdir if incdir
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end
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end
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# handle subclasses, nested modules etc (e.g. Metasm::PE, to avoid Metasm::PE::Ia32: const not found)
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class Module
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alias premetasm_const_missing const_missing
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def const_missing(c)
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# Object.const_missing => Module#const_missing and not the other way around
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# XXX should use Module.nesting, but ruby sucks arse
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# e.g. module Metasm ; module Bla ; class << self ; Ia32 ; end ; end ; end -> fail
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if (name =~ /^Metasm(::|$)/ or ancestors.include? Metasm) and cst = Metasm.autorequire_const_missing(c)
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cst
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else
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premetasm_const_missing(c)
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end
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end
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end
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# load core files by default (too many classes to check for otherwise)
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Metasm::CPU.class
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=end
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# load core files by default (too many classes to check for otherwise)
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require 'metasm/encode'
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require 'metasm/decode'
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require 'metasm/main'
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require 'metasm/exe_format/main'
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require 'metasm/os/main'
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# remove an 1.9 warning, couldn't find a compatible way...
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if {}.respond_to? :key
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puts "using ruby1.9 workaround for Hash#index warning" if $DEBUG
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class Hash
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alias index_premetasm index rescue nil
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undef index rescue nil
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alias index key
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end
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end
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