Example #1
0
 def test_outputs(self):
     with self.assertRaises(TypeError):
         api.output_to_json(None, None)
     with self.assertRaises(TypeError):
         api.output_to_python(None, None)
     with self.assertRaises(TypeError):
         api.output_to_string(None, None)
Example #2
0
 def test_outputs(self):
     with self.assertRaises(TypeError):
         api.output_to_json(None, None)
     with self.assertRaises(TypeError):
         api.output_to_python(None, None)
     with self.assertRaises(TypeError):
         api.output_to_string(None, None)
Example #3
0
def watch(args):
    """
    structname watch vaddr [refreshrate] [varname]
    :param opt:
    :return:
    """
    memory_address = args.addr
    refresh = args.refresh_rate
    varname = args.varname
    # we need an int
    # get the memory handler adequate for the type requested
    memory_handler = _get_memory_handler(args)
    # check the validity of the address
    heap = memory_handler.is_valid_address_value(memory_address)
    if not heap:
        log.error("the address is not accessible in the memoryMap")
        raise ValueError("the address is not accessible in the memoryMap")
    # get the structure name
    modulename, sep, classname = args.struct_name.rpartition('.')
    module = memory_handler.get_model().import_module(modulename)
    struct_type = getattr(module, classname)

    # verify target fieldcompliance
    if varname is not None:
        varname = varname.split('.')
        if not check_varname_for_type(memory_handler, varname, struct_type):
            return False

    # load the record
    result = api.load_record(memory_handler, struct_type, memory_address)
    results = [result]
    # output handling
    output = api.output_to_python(memory_handler, results)
    py_obj = output[0][0]
    # print pyObj
    # print as asked every n secs.
    while True:
        # clear terminal
        print chr(27) + "[2J"
        #
        if varname is None:
            print py_obj
        else:
            print get_varname_value(varname, py_obj)

        if refresh == 0:
            break
        time.sleep(refresh)
        result = api.load_record(memory_handler, struct_type, memory_address)
        results = [result]
        # output handling
        output = api.output_to_python(memory_handler, results)
        py_obj = output[0][0]
Example #4
0
def watch(args):
    """Cast the bytes at this address into a record_type and refresh regularly. """
    memory_address = args.addr
    refresh = args.refresh_rate
    varname = args.varname
    # get the memory handler adequate for the type requested
    memory_handler = get_memory_handler(args)
    # check the validity of the address
    heap = memory_handler.is_valid_address_value(memory_address)
    if not heap:
        log.error("the address is not accessible in the memoryMap")
        raise ValueError("the address is not accessible in the memoryMap")
    # get the structure name
    modulename, sep, classname = args.record_type_name.rpartition('.')
    module = None
    try:
        module = memory_handler.get_model().import_module(modulename)
    except ImportError as e:
        log.error('sys.path is %s', sys.path)
        raise e
    record_type = getattr(module, classname)
    # verify target fieldcompliance
    if varname is not None:
        varname = varname.split('.')
        if not check_varname_for_type(memory_handler, varname, record_type):
            return False
    # load the record
    result = api.load_record(memory_handler, record_type, memory_address)
    results = [result]
    # output handling
    output = api.output_to_python(memory_handler, results)
    # _get_output(memory_handler, results, rtype):
    # Conflicts with varname
    py_obj = output[0][0]
    # print pyObj
    # print as asked every n secs.
    while True:
        # clear terminal
        print(chr(27) + "[2J")
        #
        if varname is None:
            print(py_obj)
        else:
            print(get_varname_value(varname, py_obj))

        if refresh == 0:
            break
        time.sleep(refresh)
        result = api.load_record(memory_handler, record_type, memory_address)
        results = [result]
        # output handling
        output = api.output_to_python(memory_handler, results)
        py_obj = output[0][0]
Example #5
0
def watch(args):
    """Cast the bytes at this address into a record_type and refresh regularly. """
    memory_address = args.addr
    refresh = args.refresh_rate
    varname = args.varname
    # get the memory handler adequate for the type requested
    memory_handler = get_memory_handler(args)
    # check the validity of the address
    heap = memory_handler.is_valid_address_value(memory_address)
    if not heap:
        log.error("the address is not accessible in the memoryMap")
        raise ValueError("the address is not accessible in the memoryMap")
    # get the structure name
    modulename, sep, classname = args.record_type_name.rpartition('.')
    module = None
    try:
        module = memory_handler.get_model().import_module(modulename)
    except ImportError as e:
        log.error('sys.path is %s', sys.path)
        raise e
    record_type = getattr(module, classname)
    # verify target fieldcompliance
    if varname is not None:
        varname = varname.split('.')
        if not check_varname_for_type(memory_handler, varname, record_type):
            return False
    # load the record
    result = api.load_record(memory_handler, record_type, memory_address)
    results = [result]
    # output handling
    output = api.output_to_python(memory_handler, results)
    # _get_output(memory_handler, results, rtype):
    # Conflicts with varname
    py_obj = output[0][0]
    # print pyObj
    # print as asked every n secs.
    while True:
        # clear terminal
        print chr(27) + "[2J"
        #
        if varname is None:
            print py_obj
        else:
            print get_varname_value(varname, py_obj)

        if refresh == 0:
            break
        time.sleep(refresh)
        result = api.load_record(memory_handler, record_type, memory_address)
        results = [result]
        # output handling
        output = api.output_to_python(memory_handler, results)
        py_obj = output[0][0]
Example #6
0
def watch(args):
    """
    structname watch vaddr [refreshrate] [varname]
    :param opt:
    :return:
    """
    memory_address = args.addr
    refresh = args.refresh_rate
    varname = args.varname
    # we need an int
    # get the memory handler adequate for the type requested
    memory_handler = _get_memory_handler(args)
    # check the validity of the address
    heap = memory_handler.is_valid_address_value(memory_address)
    if not heap:
        log.error("the address is not accessible in the memoryMap")
        raise ValueError("the address is not accessible in the memoryMap")
    # get the structure name
    modulename, sep, classname = args.struct_name.rpartition('.')
    module = memory_handler.get_model().import_module(modulename)
    struct_type = getattr(module, classname)

    # verify target fieldcompliance
    if varname is not None:
        varname = varname.split('.')
        if not check_varname_for_type(memory_handler, varname, struct_type):
            return False

    # load the record
    result = api.load_record(memory_handler, struct_type, memory_address)
    results = [result]
    # output handling
    output = api.output_to_python(memory_handler, results)
    py_obj = output[0][0]
    # print pyObj
    # print as asked every n secs.
    while True:
        # clear terminal
        print chr(27) + "[2J"
        #
        if varname is None:
            print py_obj
        else:
            print get_varname_value(varname, py_obj)

        if refresh == 0:
            break
        time.sleep(refresh)
        result = api.load_record(memory_handler, struct_type, memory_address)
        results = [result]
        # output handling
        output = api.output_to_python(memory_handler, results)
        py_obj = output[0][0]
Example #7
0
    def test_load(self):
        # this is kinda stupid, given we are using a heapwalker to
        # find the heap, and testing the heap.

        finder = self.memory_handler.get_heap_finder()
        walkers = finder.list_heap_walkers()
        heaps = [walker.get_heap_mapping() for walker in walkers]
        my_heap = [x for x in heaps if x.start == self.known_heaps[0][0]][0]
        heap_mapping = self.memory_handler.get_mapping_for_address(
            self.known_heaps[0][0])
        # we want the 32 bits heap record type on 32 bits heap mappings
        heapwalker = finder.get_heap_walker(heap_mapping)
        ## Thats a 64 bits heap heapwalker = finder.get_heap_walker(heaps[0])

        my_loader = searcher.RecordLoader(self.memory_handler)
        res = my_loader.load(heapwalker._heap_module.HEAP,
                             self.known_heaps[0][0])
        res_p = api.output_to_python(self.memory_handler, [res])
        instance, validated = res_p[0]
        # no constraints loaded, subsegmentcode pointer went to is_valid
        self.assertFalse(validated)

        # now lets just use the win7heap constraints
        my_loader = searcher.RecordLoader(self.memory_handler,
                                          heapwalker._heap_module_constraints)
        res = my_loader.load(heapwalker._heap_module.HEAP,
                             self.known_heaps[0][0])
        res_p = api.output_to_python(self.memory_handler, [res])
        instance, validated = res_p[0]
        # no constraints loaded, subsegmentcode pointer went to is_valid
        self.assertTrue(validated)
        self.assertIsInstance(instance, object)
        self.assertEqual(instance.Signature, 0xeeffeeff)
        self.assertEqual(instance.VirtualMemoryThreshold, 0xfe00)
        self.assertEqual(instance.FrontEndHeapType, 0)

        # try a misalign read
        res = my_loader.load(heapwalker._heap_module.HEAP,
                             self.known_heaps[0][0] + 1)
        res_p = api.output_to_python(self.memory_handler, [res])
        instance, validated = res_p[0]
        self.assertFalse(validated)
        self.assertIsInstance(instance, object)
        self.assertNotEquals(instance.Signature, 0xeeffeeff)
        self.assertEqual(instance.Signature, 0xeeffee)  # 1 byte off
        self.assertNotEquals(instance.VirtualMemoryThreshold, 0xfe00)
        self.assertEqual(instance.VirtualMemoryThreshold, 0xff0000fe)

        return
    def test_load(self):
        # this is kinda stupid, given we are using a heapwalker to
        # find the heap, and testing the heap.

        finder = self.memory_handler.get_heap_finder()
        walkers = finder.list_heap_walkers()
        heaps = [walker.get_heap_mapping() for walker in walkers]
        my_heap = [x for x in heaps if x.start == self.known_heaps[0][0]][0]
        heap_mapping = self.memory_handler.get_mapping_for_address(self.known_heaps[0][0])
        # we want the 32 bits heap record type on 32 bits heap mappings
        heapwalker = finder.get_heap_walker(heap_mapping)
        ## Thats a 64 bits heap heapwalker = finder.get_heap_walker(heaps[0])


        my_loader = searcher.RecordLoader(self.memory_handler)
        res = my_loader.load(heapwalker._heap_module.HEAP, self.known_heaps[0][0])
        res_p = api.output_to_python(self.memory_handler, [res])
        instance, validated = res_p[0]
        # no constraints loaded, subsegmentcode pointer went to is_valid
        self.assertFalse(validated)

        # now lets just use the win7heap constraints
        my_loader = searcher.RecordLoader(self.memory_handler, heapwalker._heap_module_constraints)
        res = my_loader.load(heapwalker._heap_module.HEAP, self.known_heaps[0][0])
        res_p = api.output_to_python(self.memory_handler, [res])
        instance, validated = res_p[0]
        # no constraints loaded, subsegmentcode pointer went to is_valid
        self.assertTrue(validated)
        self.assertIsInstance(instance, object)
        self.assertEqual(instance.Signature, 0xeeffeeff)
        self.assertEqual(instance.VirtualMemoryThreshold, 0xfe00)
        self.assertEqual(instance.FrontEndHeapType, 0)

        # try a misalign read
        res = my_loader.load(heapwalker._heap_module.HEAP, self.known_heaps[0][0] + 1)
        res_p = api.output_to_python(self.memory_handler, [res])
        instance, validated = res_p[0]
        self.assertFalse(validated)
        self.assertIsInstance(instance, object)
        self.assertNotEquals(instance.Signature, 0xeeffeeff)
        self.assertEqual(instance.Signature, 0xeeffee)  # 1 byte off
        self.assertNotEquals(instance.VirtualMemoryThreshold, 0xfe00)
        self.assertEqual(instance.VirtualMemoryThreshold, 0xff0000fe)

        return
Example #9
0
def refresh(args):
    """
    Default function for the refresh command line option.
    Try to map a Structure from a specific offset in memory.
    Returns it in pickled or text format.

    See the command line --help .
    """
    # we need an int
    memory_address = args.addr
    # get the memory handler adequate for the type requested
    memory_handler = _get_memory_handler(args)
    # print output on stdout
    rtype = _get_output_style(args)
    # check the validity of the address
    heap = memory_handler.is_valid_address_value(memory_address)
    if not heap:
        log.error("the address is not accessible in the memoryMap")
        raise ValueError("the address is not accessible in the memoryMap")
    # get the structure name
    modulename, sep, classname = args.struct_name.rpartition('.')
    module = memory_handler.get_model().import_module(modulename)
    struct_type = getattr(module, classname)
    # load the record
    result = api.load_record(memory_handler, struct_type, memory_address)
    results = [result]
    if args.validate:
        my_constraints = None
        if args.constraints_file:
            handler = constraints.ConstraintsConfigHandler()
            my_constraints = handler.read(args.constraints_file.name)
        validation = api.validate_record(memory_handler, result[0],
                                         my_constraints)
    if args.interactive:
        import code
        code.interact(local=locals())
    # output handling
    ret = None
    if rtype == 'string':
        ret = api.output_to_string(memory_handler, results)
    elif rtype == 'python':
        ret = api.output_to_python(memory_handler, results)
    elif rtype == 'json':
        ret = api.output_to_json(memory_handler, results)
    elif rtype == 'pickled':
        ret = api.output_to_pickle(memory_handler, results)
    else:
        raise ValueError('unknown output format')
    print ret
    if args.validate:
        print 'Validated', validation
    return
Example #10
0
def get_output(memory_handler, results, rtype):
    if rtype == 'string':
        ret = api.output_to_string(memory_handler, results)
    elif rtype == 'python':
        # useful in interactive mode
        ret = api.output_to_python(memory_handler, results)
    elif rtype == 'json':
        ret = api.output_to_json(memory_handler, results)
    elif rtype == 'pickled':
        ret = api.output_to_pickle(memory_handler, results)
    else:
        raise ValueError('unknown output format')
    return ret
Example #11
0
def get_output(memory_handler, results, rtype):
    if rtype == 'string':
        ret = api.output_to_string(memory_handler, results)
    elif rtype == 'python':
        # useful in interactive mode
        ret = api.output_to_python(memory_handler, results)
    elif rtype == 'json':
        ret = api.output_to_json(memory_handler, results)
    elif rtype == 'pickled':
        ret = api.output_to_pickle(memory_handler, results)
    else:
        raise ValueError('unknown output format')
    return ret
Example #12
0
def refresh(args):
    """
    Default function for the refresh command line option.
    Try to map a Structure from a specific offset in memory.
    Returns it in pickled or text format.

    See the command line --help .
    """
    # we need an int
    memory_address = args.addr
    # get the memory handler adequate for the type requested
    memory_handler = _get_memory_handler(args)
    # print output on stdout
    rtype = _get_output_style(args)
    # check the validity of the address
    heap = memory_handler.is_valid_address_value(memory_address)
    if not heap:
        log.error("the address is not accessible in the memoryMap")
        raise ValueError("the address is not accessible in the memoryMap")
    # get the structure name
    modulename, sep, classname = args.struct_name.rpartition('.')
    module = memory_handler.get_model().import_module(modulename)
    struct_type = getattr(module, classname)
    # load the record
    result = api.load_record(memory_handler, struct_type, memory_address)
    results = [result]
    if args.validate:
        my_constraints = None
        if args.constraints_file:
            handler = constraints.ConstraintsConfigHandler()
            my_constraints = handler.read(args.constraints_file.name)
        validation = api.validate_record(memory_handler, result[0], my_constraints)
    if args.interactive:
        import code
        code.interact(local=locals())
    # output handling
    ret = None
    if rtype == 'string':
        ret = api.output_to_string(memory_handler, results)
    elif rtype == 'python':
        ret = api.output_to_python(memory_handler, results)
    elif rtype == 'json':
        ret = api.output_to_json(memory_handler, results)
    elif rtype == 'pickled':
        ret = api.output_to_pickle(memory_handler, results)
    else:
        raise ValueError('unknown output format')
    print ret
    if args.validate:
        print 'Validated', validation
    return
Example #13
0
    def test_weird_py3_bug(self):
        # RESULT: PY3 pickling works if model includes all pythoned module hierachy

        results, validated = api.load_record(self.memory_handler, self.usual, self.address1)
        # check the string output
        retstr = api.output_to_string(self.memory_handler, [(results, validated)])
        self.assertTrue(isinstance(retstr, str))
        ret = api.output_to_python(self.memory_handler, [(results, validated)])
        # check subclass in model module
        x = pickle.dumps(ret)
        # Python 2
        # self.assertIn(b'test.src.ctypes6_gen32.struct_usual_py', x)
        # Python 3
        self.assertIn(b'struct_usual_py', x)
        # TODO TEST really, you should be able to load the pickled code as long as haystack.outputters.python is there
        # and still be able to load the object graph.
        obj = pickle.loads(x)
        self.assertEqual(obj[0][0].root.blink, obj[0][0].root.flink)
        self.assertEqual(obj[0][0].root.blink.flink, obj[0][0].root.flink.flink)
        return
Example #14
0
def search_cmdline(args):
    """ Internal cmdline mojo. """
    # get the memory handler adequate for the type requested
    memory_handler = _get_memory_handler(args)
    # print output on stdout
    rtype = _get_output_style(args)
    # try to load constraints
    # mapper
    if args.constraints_file:
        handler = constraints.ConstraintsConfigHandler()
        my_constraints = handler.read(args.constraints_file.name)
    else:
        my_constraints = None
    # get the structure name
    modulename, sep, classname = args.struct_name.rpartition('.')
    module = memory_handler.get_model().import_module(modulename)
    struct_type = getattr(module, classname)
    # do the search
    results = api.search_record(memory_handler,
                                struct_type,
                                my_constraints,
                                extended_search=args.extended_search)
    if args.interactive:
        import code
        code.interact(local=locals())
    # output handling
    ret = None
    if rtype == 'string':
        ret = api.output_to_string(memory_handler, results)
    elif rtype == 'python':
        ret = api.output_to_python(memory_handler, results)
    elif rtype == 'json':
        ret = api.output_to_json(memory_handler, results)
    elif rtype == 'pickled':
        ret = api.output_to_pickle(memory_handler, results)
    else:
        raise ValueError('unknown output format')
    print ret
    return
Example #15
0
    def test_weird_py3_bug(self):
        # RESULT: PY3 pickling works if model includes all pythoned module hierachy

        results, validated = api.load_record(self.memory_handler, self.usual,
                                             self.address1)
        # check the string output
        retstr = api.output_to_string(self.memory_handler,
                                      [(results, validated)])
        self.assertTrue(isinstance(retstr, str))
        ret = api.output_to_python(self.memory_handler, [(results, validated)])
        # check subclass in model module
        x = pickle.dumps(ret)
        # Python 2
        # self.assertIn(b'test.src.ctypes6_gen32.struct_usual_py', x)
        # Python 3
        self.assertIn(b'struct_usual_py', x)
        # TODO TEST really, you should be able to load the pickled code as long as haystack.outputters.python is there
        # and still be able to load the object graph.
        obj = pickle.loads(x)
        self.assertEqual(obj[0][0].root.blink, obj[0][0].root.flink)
        self.assertEqual(obj[0][0].root.blink.flink,
                         obj[0][0].root.flink.flink)
        return
Example #16
0
def search_cmdline(args):
    """ Internal cmdline mojo. """
    # get the memory handler adequate for the type requested
    memory_handler = _get_memory_handler(args)
    # print output on stdout
    rtype = _get_output_style(args)
    # try to load constraints
    # mapper
    if args.constraints_file:
        handler = constraints.ConstraintsConfigHandler()
        my_constraints = handler.read(args.constraints_file.name)
    else:
        my_constraints = None
    # get the structure name
    modulename, sep, classname = args.struct_name.rpartition('.')
    module = memory_handler.get_model().import_module(modulename)
    struct_type = getattr(module, classname)
    # do the search
    results = api.search_record(memory_handler, struct_type, my_constraints, extended_search=args.extended_search)
    if args.interactive:
        import code
        code.interact(local=locals())
    # output handling
    ret = None
    if rtype == 'string':
        ret = api.output_to_string(memory_handler, results)
    elif rtype == 'python':
        ret = api.output_to_python(memory_handler, results)
    elif rtype == 'json':
        ret = api.output_to_json(memory_handler, results)
    elif rtype == 'pickled':
        ret = api.output_to_pickle(memory_handler, results)
    else:
        raise ValueError('unknown output format')
    print ret
    return
Example #17
0
    def test_refresh(self):
        #handler = constraints.ConstraintsConfigHandler()
        #my_constraints = handler.read('test/src/ctypes6.constraints')
        #results = api.search_record(self.memory_handler, self.usual_structname, my_constraints)
        # search struct_usual with constraints
        results, validated = api.load_record(self.memory_handler, self.usual,
                                             self.address1)
        # check the string output
        retstr = api.output_to_string(self.memory_handler,
                                      [(results, validated)])
        self.assertTrue(isinstance(retstr, str))

        # string
        #retstr = api.show_dumpname(self.usual_structname, self.memdumpname,
        #                                self.address1, rtype='string')
        self.assertIn(str(0x0aaaaaaa), retstr)  # 0xaaaaaaa/178956970L
        self.assertIn(str(0x0ffffff0), retstr)
        self.assertIn('"val2b": 0', retstr)
        self.assertIn('"val1b": 0', retstr)

        # usual->root.{f,b}link = &node1->list; # offset list is (wordsize) bytes
        ## TU results based on __book
        node1_list_addr = hex(self.address2 + self.my_target.get_word_size())
        self.assertIn('"flink": { # <struct_entry at %s' % node1_list_addr,
                      retstr)
        self.assertIn('"blink": { # <struct_entry at %s' % node1_list_addr,
                      retstr)
        ## TU results based on direct access
        #node1_list_addr = self.address2 + self.my_target.get_word_size()
        #self.assertIn('"flink": 0x%0.8x' % node1_list_addr, retstr)
        #self.assertIn('"blink": 0x%0.8x' % node1_list_addr, retstr)

        # python
        usuals = api.output_to_python(self.memory_handler,
                                      [(results, validated)])
        usual, validated = usuals[0]
        self.assertEqual(validated, True)
        self.assertEqual(usual.val1, 0x0aaaaaaa)
        self.assertEqual(usual.val2, 0x0ffffff0)
        self.assertEqual(usual.txt,
                         b'This a string with a test this is a test string')

        # so now we got python objects
        # that is node 1
        self.assertIsNotNone(usual.root.flink)
        self.assertEqual(usual.root.flink, usual.root.blink)
        #print usual.root.flink
        # that is node2
        self.assertEqual(usual.root.blink.flink, usual.root.flink.flink)
        # that is None (root.flink = root.blink)
        self.assertIsNone(usual.root.blink.blink)
        self.assertIsNone(usual.root.flink.blink)
        # that is None per design UT
        self.assertIsNone(usual.root.blink.flink.flink)

        # python 2 struct Node
        results, validated = api.load_record(self.memory_handler, self.node,
                                             self.address2)
        node1s = api.output_to_python(self.memory_handler,
                                      [(results, validated)])
        node1, validated = node1s[0]
        self.assertEqual(validated, True)
        self.assertEqual(node1.val1, 0xdeadbeef)
        self.assertEqual(node1.val2, 0xffffffff)

        results, validated = api.load_record(self.memory_handler, self.node,
                                             self.address3)
        node2s = api.output_to_python(self.memory_handler,
                                      [(results, validated)])
        node2, validated = node2s[0]
        self.assertEqual(validated, True)
        self.assertEqual(node2.val1, 0xdeadbabe)
        self.assertEqual(node2.val2, 0xffffffff)

        self.assertIsNotNone(usual.root.flink)

        # FIXME this was assertNotEquals. Why would the python obj be equals now ?
        # but we have different instances/references between calls to
        # show_dumpname
        self.assertEqual(usual.root.flink, node1.list)
        self.assertEqual(usual.root.blink.flink, node2.list)
Example #18
0
    def test_refresh(self):
        #handler = constraints.ConstraintsConfigHandler()
        #my_constraints = handler.read('test/src/ctypes6.constraints')
        #results = api.search_record(self.memory_handler, self.usual_structname, my_constraints)
        # search struct_usual with constraints
        results, validated = api.load_record(self.memory_handler, self.usual, self.address1)
        # check the string output
        retstr = api.output_to_string(self.memory_handler, [(results, validated)])
        self.assertTrue(isinstance(retstr, str))

        # string
        #retstr = api.show_dumpname(self.usual_structname, self.memdumpname,
        #                                self.address1, rtype='string')
        self.assertIn(str(0x0aaaaaaa), retstr)  # 0xaaaaaaa/178956970L
        self.assertIn(str(0x0ffffff0), retstr)
        self.assertIn('"val2b": 0', retstr)
        self.assertIn('"val1b": 0', retstr)

        # usual->root.{f,b}link = &node1->list; # offset list is (wordsize) bytes
        ## TU results based on __book
        node1_list_addr = hex(self.address2 + self.my_target.get_word_size())
        self.assertIn('"flink": { # <struct_entry at %s' % node1_list_addr, retstr)
        self.assertIn('"blink": { # <struct_entry at %s' % node1_list_addr, retstr)
        ## TU results based on direct access
        #node1_list_addr = self.address2 + self.my_target.get_word_size()
        #self.assertIn('"flink": 0x%0.8x' % node1_list_addr, retstr)
        #self.assertIn('"blink": 0x%0.8x' % node1_list_addr, retstr)

        # python
        usuals = api.output_to_python(self.memory_handler, [(results, validated)])
        usual, validated = usuals[0]
        self.assertEqual(validated, True)
        self.assertEqual(usual.val1, 0x0aaaaaaa)
        self.assertEqual(usual.val2, 0x0ffffff0)
        self.assertEqual(usual.txt, b'This a string with a test this is a test string')

        # so now we got python objects
        # that is node 1
        self.assertIsNotNone(usual.root.flink)
        self.assertEqual(usual.root.flink, usual.root.blink)
        #print usual.root.flink
        # that is node2
        self.assertEqual(usual.root.blink.flink, usual.root.flink.flink)
        # that is None (root.flink = root.blink)
        self.assertIsNone(usual.root.blink.blink)
        self.assertIsNone(usual.root.flink.blink)
        # that is None per design UT
        self.assertIsNone(usual.root.blink.flink.flink)

        # python 2 struct Node
        results, validated = api.load_record(self.memory_handler, self.node, self.address2)
        node1s = api.output_to_python(self.memory_handler, [(results, validated)])
        node1, validated = node1s[0]
        self.assertEqual(validated, True)
        self.assertEqual(node1.val1, 0xdeadbeef)
        self.assertEqual(node1.val2, 0xffffffff)

        results, validated = api.load_record(self.memory_handler, self.node, self.address3)
        node2s = api.output_to_python(self.memory_handler, [(results, validated)])
        node2, validated = node2s[0]
        self.assertEqual(validated, True)
        self.assertEqual(node2.val1, 0xdeadbabe)
        self.assertEqual(node2.val2, 0xffffffff)

        self.assertIsNotNone(usual.root.flink)

        # FIXME this was assertNotEquals. Why would the python obj be equals now ?
        # but we have different instances/references between calls to
        # show_dumpname
        self.assertEqual(usual.root.flink, node1.list)
        self.assertEqual(usual.root.blink.flink, node2.list)