Module: Rex::Arch

Defined in:
lib/rex/arch.rb,
lib/rex/arch/x86.rb,
lib/rex/arch/sparc.rb

Overview

This module provides generalized methods for performing operations that are architecture specific. Furthermore, the modules contained within this module provide features that are specific to a given architecture.

Defined Under Namespace

Modules: Sparc, X86

Class Method Summary collapse

Class Method Details

.adjust_stack_pointer(arch, adjustment) ⇒ Object

This routine adjusts the stack pointer for a given architecture.


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# File 'lib/rex/arch.rb', line 25

def self.adjust_stack_pointer(arch, adjustment)

  if ( arch.is_a?(::Array))
    arch = arch[0]
  end

  case arch
    when /x86/
      Rex::Arch::X86.adjust_reg(Rex::Arch::X86::ESP, adjustment)
    else
      nil
  end
end

.endian(arch) ⇒ Object

This routine reports the endianess of a given architecture


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# File 'lib/rex/arch.rb', line 73

def self.endian(arch)

  if ( arch.is_a?(::Array))
    arch = arch[0]
  end

  case arch
    when ARCH_X86
      return ENDIAN_LITTLE
    when ARCH_X86_64
      return ENDIAN_LITTLE
    when ARCH_MIPS # ambiguous
      return ENDIAN_BIG
    when ARCH_MIPSLE
      return ENDIAN_LITTLE
    when ARCH_MIPSBE
      return ENDIAN_BIG
    when ARCH_PPC  # ambiguous
      return ENDIAN_BIG
    when ARCH_SPARC
      return ENDIAN_BIG
    when ARCH_ARMLE
      return ENDIAN_LITTLE
    when ARCH_ARMBE
      return ENDIAN_BIG
  end

  return ENDIAN_LITTLE
end

.pack_addr(arch, addr) ⇒ Object

This route provides address packing for the specified arch


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# File 'lib/rex/arch.rb', line 42

def self.pack_addr(arch, addr)

  if ( arch.is_a?(::Array))
    arch = arch[0]
  end

  case arch
    when ARCH_X86
      [addr].pack('V')
    when ARCH_X86_64
      [addr].pack('Q')
    when ARCH_MIPS # ambiguous
      [addr].pack('N')
    when ARCH_MIPSBE
      [addr].pack('N')
    when ARCH_MIPSLE
      [addr].pack('V')
    when ARCH_PPC  # ambiguous
      [addr].pack('N')
    when ARCH_SPARC
      [addr].pack('N')
    when ARCH_ARMLE
      [addr].pack('V')
    when ARCH_ARMBE
      [addr].pack('N')
  end
end