74 lines
2.3 KiB
Ruby
74 lines
2.3 KiB
Ruby
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# 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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require 'test/unit'
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require 'metasm'
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class TestIa32 < Test::Unit::TestCase
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@@cpu32 = Metasm::Ia32.new
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@@cpu16 = Metasm::Ia32.new(16)
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def assemble(src, cpu=@@cpu32)
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Metasm::Shellcode.assemble(cpu, src).encode_string
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end
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def test_basic
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assert_equal(assemble("nop"), "\x90")
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assert_equal(assemble("push eax"), "\x50")
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assert_equal(assemble("push 2"), "\x6a\x02")
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assert_equal(assemble("push 142"), "\x68\x8e\0\0\0")
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end
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def test_16
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assert_equal(assemble("push 142", @@cpu16), "\x68\x8e\0")
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assert_equal(assemble("code16 push 142", @@cpu16), "\x68\x8e\0")
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assert_equal(assemble("code16 push 142"), "\x68\x8e\0")
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assert_equal(assemble("push.i16 142"), "\x66\x68\x8e\0")
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assert_equal(assemble("mov eax, 42"), "\xb8\x2a\0\0\0")
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assert_equal(assemble("code16 mov ax, 42"), "\xb8\x2a\0")
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end
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def test_jmp
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assert_equal(assemble("jmp $"), "\xeb\xfe")
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assert_equal(assemble("jmp.i32 $"), "\xe9\xfb\xff\xff\xff")
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end
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def test_mrmsz
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assert_equal(assemble("mov [eax], ebx"), "\x89\x18")
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assert_equal(assemble("mov [eax], bl"), "\x88\x18")
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assert_equal(assemble("mov ebx, [eax]"), "\x8b\x18")
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assert_equal(assemble("mov bl, [eax]"), "\x8a\x18")
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assert_equal(assemble("mov bl, [bx]"), "\x67\x8a\x1f")
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assert_equal(assemble("mov bl, [bx]", @@cpu16), "\x8a\x1f")
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assert_equal(assemble("code16 mov bl, [bx]"), "\x8a\x1f")
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assert_equal(assemble("mov bl, [0]"), "\x8a\x1d\0\0\0\0")
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assert_equal(assemble("mov.a16 bl, [0]"), "\x67\x8a\x1e\0\0")
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end
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def test_err
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assert_raise(Metasm::ParseError) { assemble("add eax") }
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assert_raise(Metasm::ParseError) { assemble("add add, ebx") }
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assert_raise(Metasm::ParseError) { assemble("add 42, ebx") }
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assert_raise(Metasm::ParseError) { assemble("add [bx+ax]") }
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end
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def test_C
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src = "int bla(void) { volatile int i=0; return ++i; }"
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assert_equal(Metasm::Shellcode.compile_c(@@cpu32, src).encode_string,
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["5589E583EC04C745FC00000000FF45FC8B45FC89EC5DC3"].pack('H*'))
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end
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def disassemble(bin, cpu=@@cpu32)
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Metasm::Shellcode.disassemble(cpu, bin)
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end
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def test_dasm
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d = disassemble("\x90")
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assert_equal(d.decoded[0].class, Metasm::DecodedInstruction)
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assert_equal(d.decoded[0].opcode.name, "nop")
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end
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end
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