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test_lift.py
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test_lift.py
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#!/usr/bin/env python
test_cases = \
[
# ror r0, r1
('linux-armv7', b'\x70\x01\xa0\xe1', 'LLIL_SET_REG.d(r0,LLIL_ROR.d(LLIL_REG.d(r0),LLIL_AND.b(LLIL_REG.d(r1),LLIL_CONST.b(0xFF))))'),
# ror r0, 7
('linux-armv7', b'\xe0\x03\xa0\xe1', 'LLIL_SET_REG.d(r0,LLIL_ROR.d(LLIL_REG.d(r0),LLIL_AND.b(LLIL_CONST.d(0x7),LLIL_CONST.b(0xFF))))'),
# rors r0, r1
('linux-armv7', b'\x70\x01\xb0\xe1', 'LLIL_SET_REG.d(r0,LLIL_ROR.d{*}(LLIL_REG.d(r0),LLIL_AND.b(LLIL_REG.d(r1),LLIL_CONST.b(0xFF))))'),
# rors r0, 7
('linux-armv7', b'\xe0\x03\xb0\xe1', 'LLIL_SET_REG.d(r0,LLIL_ROR.d{*}(LLIL_REG.d(r0),LLIL_AND.b(LLIL_CONST.d(0x7),LLIL_CONST.b(0xFF))))'),
# vadd.f32 s0, s1, s2
('linux-armv7', b'\x81\x0a\x30\xee', 'LLIL_SET_REG.d(s0,LLIL_FADD.d(LLIL_REG.d(s1),LLIL_REG.d(s2)))'),
# vsub.f32 s0, s1, s2
('linux-armv7', b'\xc1\x0a\x30\xee', 'LLIL_SET_REG.d(s0,LLIL_FSUB.d(LLIL_REG.d(s1),LLIL_REG.d(s2)))'),
# vmul.f32 s0, s1, s2
('linux-armv7', b'\x81\x0a\x20\xee', 'LLIL_SET_REG.d(s0,LLIL_FMUL.d(LLIL_REG.d(s1),LLIL_REG.d(s2)))'),
# vdiv.f32 s0, s1, s2
('linux-armv7', b'\x81\x0a\x80\xee', 'LLIL_SET_REG.d(s0,LLIL_FDIV.d(LLIL_REG.d(s1),LLIL_REG.d(s2)))'),
# svc #0
# svc #1
# svc #2
# svc #3
('linux-armv7', b'\x00\x00\x00\xef', 'LLIL_SET_REG.d(syscall_info,LLIL_CONST.d(0x0)); LLIL_SYSCALL()'),
('linux-armv7', b'\x01\x00\x00\xef', 'LLIL_SET_REG.d(syscall_info,LLIL_CONST.d(0x1)); LLIL_SYSCALL()'),
('linux-armv7', b'\x02\x00\x00\xef', 'LLIL_SET_REG.d(syscall_info,LLIL_CONST.d(0x2)); LLIL_SYSCALL()'),
('linux-armv7', b'\x03\x00\x00\xef', 'LLIL_SET_REG.d(syscall_info,LLIL_CONST.d(0x3)); LLIL_SYSCALL()'),
# svcle #0xDEAD
('linux-armv7', b'\xAD\xDE\x00\xdf', 'LLIL_IF(LLIL_FLAG_COND(LowLevelILFlagCondition.LLFC_SLE,None),1,4); LLIL_SET_REG.d(syscall_info,LLIL_CONST.d(0xDEAD)); LLIL_SYSCALL(); LLIL_GOTO(4)'),
# svcgt #0xdead
('linux-armv7', b'\xad\xde\x00\xcf', 'LLIL_IF(LLIL_FLAG_COND(LowLevelILFlagCondition.LLFC_SGT,None),1,4); LLIL_SET_REG.d(syscall_info,LLIL_CONST.d(0xDEAD)); LLIL_SYSCALL(); LLIL_GOTO(4)'),
# mov r0, r1
('linux-armv7', b'\x01\x00\xa0\xe1', 'LLIL_SET_REG.d(r0,LLIL_REG.d(r1))'),
# nop
('linux-armv7', b'\x00\xf0\x20\xe3', 'LLIL_NOP()'),
# vmov.i32 d16, #0
('linux-armv7', b'\x10\x00\xc0\xf2', 'LLIL_SET_REG.q(d16,LLIL_CONST.q(0x0))'),
# vmov.i32 q8, #0
('linux-armv7', b'\x50\x00\xc0\xf2', 'LLIL_SET_REG.o(q8,LLIL_OR.o(LLIL_CONST.q(0x0),LLIL_LSL.o(LLIL_CONST.q(0x0),LLIL_CONST.q(0x40))))'),
# vmov.i32 d16, #1
('linux-armv7', b'\x11\x00\xc0\xf2', 'LLIL_SET_REG.q(d16,LLIL_CONST.q(0x100000001))'),
# vmov.i32 q8, #1
('linux-armv7', b'\x51\x00\xc0\xf2', 'LLIL_SET_REG.o(q8,LLIL_OR.o(LLIL_CONST.q(0x100000001),LLIL_LSL.o(LLIL_CONST.q(0x100000001),LLIL_CONST.q(0x40))))'),
# vmov.i16 d16, #0
('linux-armv7', b'\x10\x08\xc0\xf2', 'LLIL_SET_REG.q(d16,LLIL_CONST.q(0x0))'),
# vmov.i16 d16, #1
('linux-armv7', b'\x11\x08\xc0\xf2', 'LLIL_SET_REG.q(d16,LLIL_CONST.q(0x1000100010001))'),
# vmov.i8 d16, #1
('linux-armv7', b'\x11\x0e\xc0\xf2', 'LLIL_SET_REG.q(d16,LLIL_CONST.q(0x101010101010101))'),
# vmov.i8 q8, #1
('linux-armv7', b'\x51\x0e\xc0\xf2', 'LLIL_SET_REG.o(q8,LLIL_OR.o(LLIL_CONST.q(0x101010101010101),LLIL_LSL.o(LLIL_CONST.q(0x101010101010101),LLIL_CONST.q(0x40))))'),
# vstr s0, [r3, #0x8]
('linux-armv7', b'\x02\x0a\x83\xed', 'LLIL_STORE.d(LLIL_ADD.d(LLIL_REG.d(r3),LLIL_CONST.d(0x8)),LLIL_REG.d(s0))'),
# vstr d16, [r3, #0x8]
('linux-armv7', b'\x02\x0b\xc3\xed', 'LLIL_STORE.q(LLIL_ADD.d(LLIL_REG.d(r3),LLIL_CONST.d(0x8)),LLIL_REG.q(d16))'),
# mov r2, r0
('linux-thumb2', b'\x02\x46', 'LLIL_SET_REG.d(r2,LLIL_REG.d(r0))'),
# cmp r1, r2
('linux-thumb2', b'\x91\x42', 'LLIL_SUB.d{*}(LLIL_REG.d(r1),LLIL_REG.d(r2))'),
# cmp r1, r2, lsl #7
('linux-thumb2', b'\xb1\xeb\xc2\x1f', 'LLIL_SUB.d{*}(LLIL_REG.d(r1),LLIL_LSL.d(LLIL_REG.d(r2),LLIL_CONST.d(0x7)))'),
]
import re
import sys
import binaryninja
from binaryninja import binaryview
from binaryninja import lowlevelil
from binaryninja.enums import LowLevelILOperation
def il2str(il):
sz_lookup = {1:'.b', 2:'.w', 4:'.d', 8:'.q', 16:'.o'}
if isinstance(il, lowlevelil.LowLevelILInstruction):
size_code = sz_lookup.get(il.size, '?') if il.size else ''
flags_code = '' if not hasattr(il, 'flags') or not il.flags else '{%s}'%il.flags
# print size-specified IL constants in hex
if il.operation in [LowLevelILOperation.LLIL_CONST, LowLevelILOperation.LLIL_CONST_PTR] and il.size:
tmp = il.operands[0]
if tmp < 0: tmp = (1<<(il.size*8))+tmp
tmp = '0x%X' % tmp if il.size else '%d' % il.size
return 'LLIL_CONST%s(%s)' % (size_code, tmp)
else:
return '%s%s%s(%s)' % (il.operation.name, size_code, flags_code, ','.join([il2str(o) for o in il.operands]))
elif isinstance(il, list):
return '[' + ','.join([il2str(x) for x in il]) + ']'
else:
return str(il)
# TODO: make this less hacky
def instr_to_il(data, platform):
RETURN = b'\x0e\xf0\xa0\xe1' # mov pc, lr
if platform == 'linux-thumb2':
RETURN = b'\xf7\x46'
RETURN_LIFTED = 'LLIL_JUMP(LLIL_REG.d(lr))'
platform = binaryninja.Platform[platform]
# make a pretend function that returns
bv = binaryview.BinaryView.new(data + RETURN)
bv.add_function(0, plat=platform)
assert len(bv.functions) == 1
result = []
#for block in bv.functions[0].low_level_il:
for block in bv.functions[0].lifted_il:
for il in block:
result.append(il2str(il))
result = '; '.join(result)
# strip return fence
if result.endswith(RETURN_LIFTED):
result = result[0:result.index(RETURN_LIFTED)]
# strip trailing separator
if result.endswith('; '):
result = result[0:-2]
return result
def il_str_to_tree(ilstr):
result = ''
depth = 0
for c in ilstr:
if c == '(':
result += '\n'
depth += 1
result += ' '*depth
elif c == ')':
depth -= 1
elif c == ',':
result += '\n'
result += ' '*depth
pass
else:
result += c
return result
def test_all():
for (test_i, (platform, data, expected)) in enumerate(test_cases):
actual = instr_to_il(data, platform)
if actual != expected:
print('MISMATCH AT TEST %d!' % test_i)
print('\t input: %s' % data.hex())
print('\texpected: %s' % expected)
print('\t actual: %s' % actual)
print('\t tree:')
print(il_str_to_tree(actual))
return False
return True
if __name__ == '__main__':
if test_all():
print('success!')
sys.exit(0)
else:
sys.exit(-1)
if __name__ == 'test_lift':
#if test_all():
# print('success!')
pass