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test_basicmodel.py
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219 lines (182 loc) · 10.1 KB
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""Tests haystack.basicmodel ."""
import logging
import unittest
from haystack import basicmodel
from haystack import target
from haystack.mappings import folder
__author__ = "Loic Jaquemet"
__copyright__ = "Copyright (C) 2012 Loic Jaquemet"
__email__ = "loic.jaquemet+python@gmail.com"
__license__ = "GPL"
__maintainer__ = "Loic Jaquemet"
__status__ = "Production"
from test.haystack import SrcTests
from haystack import constraints
class TestLoadMembers(SrcTests):
"""Basic types"""
def setUp(self):
self.memory_handler = folder.load('test/src/test-ctypes5.32.dump')
self._load_offsets_values('test/src/test-ctypes5.32.dump')
self.my_target = target.TargetPlatform.make_target_linux_32()
self.my_ctypes = self.my_target.get_target_ctypes()
self.my_utils = self.my_target.get_target_ctypes_utils()
self.my_model = self.memory_handler.get_model()
_constraints = constraints.ModuleConstraints() # empty
self.validator = basicmodel.CTypesRecordConstraintValidator(self.memory_handler, _constraints)
self.ctypes_gen32 = self.my_model.import_module("test.src.ctypes5_gen32")
def tearDown(self):
super(SrcTests, self).tearDown()
self.memory_handler.reset_mappings()
self.memory_handler = None
self.my_target = None
self.my_ctypes = None
self.my_utils = None
self.ctypes_gen32 = None
pass
def test_basic_types(self):
# struct a - basic types
offset = self.offsets['struct_a'][0]
m = self.memory_handler.get_mapping_for_address(offset)
a = m.read_struct(offset, self.ctypes_gen32.struct_a)
ret = self.validator.load_members(a, 10)
self.assertTrue(ret)
self.assertEqual(int(self.sizes['struct_a']), self.my_ctypes.sizeof(a))
self.assertEqual(int(self.values['struct_a.a']), a.a)
self.assertEqual(int(self.values['struct_a.b']), a.b)
self.assertEqual(int(self.values['struct_a.c']), a.c)
self.assertEqual(int(self.values['struct_a.d']), a.d)
self.assertEqual(int(self.values['struct_a.e']), a.e)
self.assertEqual(float(self.values['struct_a.f']), a.f)
self.assertEqual(float(self.values['struct_a.g']), a.g)
self.assertEqual(float(self.values['struct_a.h']), a.h)
offset = self.offsets['union_au'][0]
m = self.memory_handler.get_mapping_for_address(offset)
au = m.read_struct(offset, self.ctypes_gen32.union_au)
ret = self.validator.load_members(au, 10)
self.assertTrue(ret)
self.assertEqual(int(self.sizes['union_au']), self.my_ctypes.sizeof(au))
self.assertEqual(int(self.values['union_au.d']), au.d)
self.assertEqual(float(self.values['union_au.g']), au.g)
self.assertEqual(float(self.values['union_au.h']), au.h)
return
def test_basic_signed_types(self):
# struct a - basic types
offset = self.offsets['union_b'][0]
m = self.memory_handler.get_mapping_for_address(offset)
b = m.read_struct(offset, self.ctypes_gen32.union_b)
ret = self.validator.load_members(b, 10)
self.assertTrue(ret)
self.assertEqual(int(self.sizes['union_b']), self.my_ctypes.sizeof(b))
self.assertEqual(int(self.values['union_b.a']), b.a)
self.assertEqual(int(self.values['union_b.b']), b.b)
self.assertEqual(int(self.values['union_b.c']), b.c)
self.assertEqual(int(self.values['union_b.d']), b.d)
self.assertEqual(int(self.values['union_b.e']), b.e)
# char 251
self.assertEqual((self.values['union_b.g']), b.g)
return
def test_bitfield(self):
# struct a - basic types
offset = self.offsets['struct_c'][0]
m = self.memory_handler.get_mapping_for_address(offset)
c = m.read_struct(offset, self.ctypes_gen32.struct_c)
ret = self.validator.load_members(c, 10)
self.assertTrue(ret)
self.assertEqual(int(self.sizes['struct_c']), self.my_ctypes.sizeof(c))
self.assertEqual(int(self.values['struct_c.a1']), c.a1)
self.assertEqual(int(self.values['struct_c.b1']), c.b1)
self.assertEqual(int(self.values['struct_c.c1']), c.c1)
self.assertEqual(int(self.values['struct_c.d1']), c.d1)
# self.assertEqual(self.values['struct_c.a2'], c.a2)
# should be 'A' but because of bitfield constraints its an int
self.assertEqual(65, c.a2)
self.assertEqual(int(self.values['struct_c.b2']), c.b2)
self.assertEqual(int(self.values['struct_c.c2']), c.c2)
self.assertEqual(int(self.values['struct_c.d2']), c.d2)
self.assertEqual(int(self.values['struct_c.h']), c.h)
return
def test_complex(self):
# struct a - basic types
offset = self.offsets['struct_d'][0]
m = self.memory_handler.get_mapping_for_address(offset)
d = m.read_struct(offset, self.ctypes_gen32.struct_d)
ret = self.validator.load_members(d, 10)
self.assertTrue(ret)
self.assertEqual(int(self.sizes['struct_d']), self.my_ctypes.sizeof(d))
# other tests are too complex to be done in ctypes.
# that is why d.toPyObject() exists.
class TestRealSSH(unittest.TestCase):
"""Basic types"""
def setUp(self):
self.memory_handler = folder.load('test/dumps/ssh/ssh.1/')
self.my_target = self.memory_handler.get_target_platform()
self.my_ctypes = self.my_target.get_target_ctypes()
self.my_utils = self.my_target.get_target_ctypes_utils()
self.my_model = self.memory_handler.get_model()
_constraints = constraints.ModuleConstraints() # empty
self.validator = basicmodel.CTypesRecordConstraintValidator(self.memory_handler, _constraints)
try:
self.sslsnoop = self.my_model.import_module("sslsnoop")
except ImportError:
self.skipTest('sslsnoop not present')
self.classname = 'sslsnoop.ctypes_openssh.session_state'
self.known_offset = 0xb84ee318
def tearDown(self):
self.memory_handler.reset_mappings()
self.memory_handler = None
self.classname = None
self.known_offset = None
def test_real_life(self):
ctypes_openssh = self.sslsnoop.ctypes_openssh
ctypes_openssl = self.sslsnoop.ctypes_openssl
m = self.memory_handler.get_mapping_for_address(self.known_offset)
ss = m.read_struct(self.known_offset, ctypes_openssh.session_state)
ret = self.validator.load_members(ss, 10)
self.assertTrue(ret)
self.assertEqual(ss.connection_in, 3)
self.assertEqual(ss.connection_out, 3)
# receive
r_app_data = ss.receive_context.getEvpAppData(self.memory_handler)
ctx, rounds = r_app_data.getCtx()
self.assertEqual(
ctx,
b'''o\x1a\x86\xb9\x9b\xb3\xb9\x1b!\x8a\xb1\x0e\x87E\x16E\x01\r\xe8\xff\x9a\xbeQ\xe4\xbb4\xe0\xea<q\xf6\xafx\xe6K\xbf\xe2X\x1a[Yl\xfa\xb1e\x1d\x0c\x1e\n\xab\xefE\xe8\xf3\xf5\x1e\xb1\x9f\x0f\xaf\xd4\x82\x03\xb1\xc2\xe3\xfc6*\x10\t(\x9b\x8f\x06\x87O\r\x056\xc7g+M\xedw"ev\xf8$\xe29\xf5!\xd4\x8fu\xcd\x90b\x02\xef\xf5\x14\xfa\xcb\x17-\x0f\xea\xc3\xa1\xad\xbbW\xc3\xafT\xa2\xd7U\x9f\xb5\xfaZuv\x99\x80\x05JZ/Q\xe8\x8dz\xce]w \xbb+hu\xb2\xbb2Z\xe3S\xbf -\x0e\xc8\x00\x96%W\x9d\xd1\x1de\xc72N\xda\xe7\x1f@\x12\xe7\x89e\xe1\xf3\x06\x1a/E\\t\x8d\xa7\xc2\xde\xfb\x198Xi{\x8e\xa2\xb7\xcd\xe4\xfc\x15/Jf\x83\xa1\xc0\xe0\xf1\x03\x16*?Ul\x84\x9d\xb7\xd2\xee\x0b)Hhy\x8b\x9e\xb2\xc7\xdd\xf4\x0c%?Zv\x93\xb1\xd0\xf0''')
self.assertEqual(rounds, 10)
receive_cipher_ssl = self.memory_handler.getRef(ctypes_openssl.EVP_CIPHER,
self.my_utils.get_pointee_address(ss.receive_context.evp.cipher)
)
receive_cipher_ssh = ss.receive_context.getCipher(self.memory_handler)
self.assertEqual(receive_cipher_ssl.block_size, 16)
self.assertEqual(receive_cipher_ssl.key_len, 16)
self.assertEqual(receive_cipher_ssl.iv_len, 16)
self.assertEqual(ss.receive_context.evp.key_len, 16)
self.assertEqual(
receive_cipher_ssh.getName(
self.memory_handler),
'aes128-ctr')
self.assertEqual(receive_cipher_ssh.block_size, 16)
self.assertEqual(receive_cipher_ssh.key_len, 16)
# send
s_app_data = ss.send_context.getEvpAppData(self.memory_handler)
ctx, rounds = s_app_data.getCtx()
self.assertEqual(
ctx,
b'''\x11\x07Xvm\xaa!\x9a\x185\x18\xe7\x07S\x84\xdb\xa8\xc2\xb5(\xc5h\x94\xb2\xdd]\x8cU\xda\x0e\x08\x8e\xb1\x95\x1e\x1at\xfd\x8a\xa8\xa9\xa0\x06\xfds\xae\x0es>\x1a\xfa\xb5J\xe7p\x1d\xe3Gv\xe0\x90\xe9x\x93\xe2z\xe4\x01\xa8\x9d\x94\x1cK\xda\xe2\xfc\xdb3\x9aoJ\xc3'\xa9\xe2^\xb3\xb5\xa9\x84QIr\xb7\xcb&\xbd\x83\x8e\x96_\xdd=#\xf6Ylj\x84\xee\xa7L\x94\xdc\xa6\x8a\xcb\x01\x9b\xa9=X\xf7\xc3\xb9\xb6P\x8f\xe7\x8a\xe8Y,\x8bs\xf0\x11\xd3\x843\xa8e\xd4\xbc\x82H\xa5\n\xae\xc3\xd6\xfa\xbf\x10R\xc9\x17u\x86u\x1f\xb88x\xb1{\xee\x82\x0ek\xbcK\x19\x1e:>\xb2\xcc\xe7\x03 >]}\x8e\xa0\xb3\xc7\xdc\xf2\t!:To\x8b\xa8\xc6\xe5\x05\x16(;Odz\x91\xa9\xc2\xdc\xf7\x130Nm\x8d\x9e\xb0\xc3\xd7\xec\x02\x191Jd\x7f\x9b\xb8\xd6\xf5\x15&8K_t\x8a\xa1\xb9''')
self.assertEqual(rounds, 10)
send_cipher_ssl = self.memory_handler.getRef(ctypes_openssl.EVP_CIPHER,
self.my_utils.get_pointee_address(ss.send_context.evp.cipher))
send_cipher_ssh = ss.send_context.getCipher(self.memory_handler)
self.assertEqual(send_cipher_ssl.block_size, 16)
self.assertEqual(send_cipher_ssl.key_len, 16)
self.assertEqual(send_cipher_ssl.iv_len, 16)
self.assertEqual(ss.send_context.evp.key_len, 16)
self.assertEqual(send_cipher_ssh.getName(self.memory_handler), 'aes128-ctr')
self.assertEqual(send_cipher_ssh.block_size, 16)
self.assertEqual(send_cipher_ssh.key_len, 16)
return
if __name__ == '__main__':
logging.basicConfig(level=logging.INFO)
# logging.basicConfig(level=logging.INFO)
unittest.main(verbosity=2)