def test_basic_valid_message(self):
self.counter = self.counter + 1
alp_cmd_bytes = [
0x20, # action=32/ReturnFileData
0x40, # File ID
0x00, # offset
0x04, # length
0x00,
0xf3,
0x00,
0x00 # data
]
# calculate crc
crc_array = calculate_crc(alp_cmd_bytes)
# |sync|sync|counter|message type|length|crc1|crc2|
frame = [
0xC0, # interface sync byte
0, # interface version
self.counter, # counter
0x01, # message type,
len(alp_cmd_bytes), # ALP cmd length
crc_array[0],
crc_array[1] # ALP crc
] + alp_cmd_bytes
(message_type, cmds, info) = self.parser.parse(frame)
self.assertEqual(cmds[0].actions[0].operation.op, 32)
self.assertEqual(cmds[0].actions[0].operation.operand.length.value, 4)
def parse_serial_interface_header(self, s):
b = s.read("uint:8")
if b != 0xC0:
raise ParseError("expected 0xC0, found {0}".format(b))
version = s.read("uint:8")
if version != 0:
raise ParseError("Expected version 0, found {0}".format(version))
counter = s.read("uint:8")
message_type = s.read("uint:8") #TODO different handler?
cmd_len = s.read("uint:8")
crc1 = s.read("uint:8")
crc2 = s.read("uint:8")
if len(self.buffer) - s.bytepos < cmd_len:
raise ReadError("ALP command not complete yet, expected {0} bytes, got {1}".format(cmd_len, s.len - s.bytepos))
payload = s.peeklist('bytes:b', b=cmd_len)[0]
crc = calculate_crc(bytes(payload))
self.down_counter = self.down_counter + 1
if self.down_counter > 255:
self.down_counter = 0
if counter != self.down_counter:
pprint("counters not equal") #TODO consequence?
self.down_counter = counter #reset counter
if crc[0] != crc1 or crc[1] != crc2:
raise ParseError("CRC is incorrect found {} {} and expected {} {}".format(crc1, crc2, crc[0], crc[1]))
return cmd_len, message_type
def test_read_id_response_frame(self):
frame_data = [ 0x25, # length
0x00, # subnet
0x80, # dll control
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, # target_address
0x20, # D7ANP control
0x01, # origin access class
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, # origin access ID
0xa8, # D7ATP control
0xe9, # dialog ID
0x00, # transaction ID
0x05, # Tl
0x05, # Tc
0x20, # ALP control (return file data operation)
0x00, 0x00, 0x08, # file data operand
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, # UID
]
frame_data = frame_data + calculate_crc(frame_data)
(frames, info) = self.parser.parse(frame_data)
self.assertEqual(len(frames), 1)
frame = frames[0]
self.assertEqual(frame.length, 37)
self.assertEqual(frame.subnet, 0)
self.assertEqual(frame.control.id_type, IdType.UID)
self.assertEqual(frame.control.eirp_index, 0)
self.assertEqual(len(frame.target_address), 8)
self.assertEqual(frame.target_address, [0, 0, 0, 0, 0, 0, 0, 1])
self.assertEqual(frame.d7anp_frame.control.nls_method, NlsMethod.NONE)
self.assertFalse(frame.d7anp_frame.control.has_hopping)
self.assertFalse(frame.d7anp_frame.control.has_no_origin_access_id)
self.assertEqual(frame.d7anp_frame.control.origin_id_type, IdType.UID)
self.assertEqual(frame.d7anp_frame.origin_access_class, 0x01)
self.assertEqual(frame.d7anp_frame.origin_access_id, [0, 0, 0, 0, 0, 0, 0, 2])
self.assertTrue(frame.d7anp_frame.d7atp_frame.control.is_dialog_start)
self.assertTrue(frame.d7anp_frame.d7atp_frame.control.has_tl)
self.assertFalse(frame.d7anp_frame.d7atp_frame.control.has_te)
self.assertTrue(frame.d7anp_frame.d7atp_frame.control.is_ack_requested)
self.assertFalse(frame.d7anp_frame.d7atp_frame.control.is_ack_not_void)
self.assertFalse(frame.d7anp_frame.d7atp_frame.control.is_ack_record_requested)
self.assertFalse(frame.d7anp_frame.d7atp_frame.control.has_agc)
self.assertEqual(frame.d7anp_frame.d7atp_frame.dialog_id, 0xe9)
self.assertEqual(frame.d7anp_frame.d7atp_frame.transaction_id, 0)
self.assertEqual(frame.d7anp_frame.d7atp_frame.tl.exp, CT(exp=0, mant=5).exp)
self.assertEqual(frame.d7anp_frame.d7atp_frame.tl.mant, CT(exp=0, mant=5).mant)
self.assertEqual(frame.d7anp_frame.d7atp_frame.tc.exp, CT(exp=0, mant=5).exp)
self.assertEqual(frame.d7anp_frame.d7atp_frame.tc.mant, CT(exp=0, mant=5).mant)
self.assertEqual(len(frame.d7anp_frame.d7atp_frame.alp_command.actions), 1)
alp_action = frame.d7anp_frame.d7atp_frame.alp_command.actions[0]
self.assertEqual(type(alp_action.operation), ReturnFileData)
self.assertEqual(type(alp_action.operand), Data)
self.assertEqual(alp_action.operand.offset.id, 0)
self.assertEqual(alp_action.operand.offset.offset.value, 0)
self.assertEqual(alp_action.operand.length, 8)
def build_serial_frame(self,command):
buffer = bytearray([ 0xC0, 0])
alp_command_bytes = bytearray(command)
buffer.append(self.up_counter)
buffer.append(MessageType.ALP_DATA.value)
buffer.append(len(alp_command_bytes))
crc = calculate_crc(bytes(alp_command_bytes))
buffer = buffer + bytes(bytearray(crc)) + alp_command_bytes
self.up_counter = self.up_counter + 1
if self.up_counter > 255:
self.up_counter = 0
return buffer
def test_read_id_response_frame(self):
frame_data = [
0x25, # length
0x00, # subnet
0x80, # dll control
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x01, # target_address
10, # D7ANP timeout
0x20, # D7ANP control
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x02, # origin access ID
0x41, # D7ATP control
0xE9, # dialog ID
0x00, # transaction ID
0x20, # ALP control (return file data operation)
0x00,
0x00,
0x08, # file data operand
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x02, # UID
]
frame_data = frame_data + calculate_crc(frame_data)
(frames, info) = self.parser.parse(frame_data)
self.assertEqual(len(frames), 1)
frame = frames[0]
self.assertEqual(frame.length, 37)
self.assertEqual(frame.subnet, 0)
self.assertEqual(frame.control.is_target_address_set, True)
self.assertEqual(frame.control.is_target_address_vid, False)
self.assertEqual(frame.control.eirp_index, 0)
self.assertEqual(len(frame.target_address), 8)
self.assertEqual(frame.target_address, [0, 0, 0, 0, 0, 0, 0, 1])
self.assertFalse(frame.d7anp_frame.control.has_network_layer_security)
self.assertFalse(frame.d7anp_frame.control.has_multi_hop)
self.assertTrue(frame.d7anp_frame.control.has_origin_access_id)
self.assertFalse(frame.d7anp_frame.control.is_origin_access_id_vid)
self.assertEqual(frame.d7anp_frame.control.origin_access_class, 0)
self.assertEqual(frame.d7anp_frame.origin_access_id, [0, 0, 0, 0, 0, 0, 0, 2])
self.assertFalse(frame.d7anp_frame.d7atp_frame.control.is_ack_recorded)
self.assertFalse(frame.d7anp_frame.d7atp_frame.control.is_ack_return_template_requested)
self.assertTrue(frame.d7anp_frame.d7atp_frame.control.is_dialog_end)
self.assertFalse(frame.d7anp_frame.d7atp_frame.control.is_dialog_start)
self.assertFalse(frame.d7anp_frame.d7atp_frame.control.is_ack_not_void)
self.assertEqual(frame.d7anp_frame.d7atp_frame.dialog_id, 0xE9)
self.assertEqual(frame.d7anp_frame.d7atp_frame.transaction_id, 0)
self.assertEqual(len(frame.d7anp_frame.d7atp_frame.alp_command.actions), 1)
alp_action = frame.d7anp_frame.d7atp_frame.alp_command.actions[0]
self.assertEqual(type(alp_action.operation), ReturnFileData)
self.assertEqual(type(alp_action.operand), Data)
self.assertEqual(alp_action.operand.offset.id, 0)
self.assertEqual(alp_action.operand.offset.offset, 0)
self.assertEqual(alp_action.operand.length, 8)
def test_read_id_command_frame(self):
read_id_command = [
0x15, # length
0x00, # subnet
0x6a, # DLL control
0x20, # D7ANP control
0x01,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x01, # Origin Access ID
0xa8, # D7ATP control
0xe9, # dialog ID
0x00, # transaction ID
0x05, # Tl
0x05, # Tc
0x01, # ALP control (read file data operation)
0x00,
0x00,
0x08, # file data request operand (file ID 0x00)
0x25,
0xDA # CRC
]
(frames, info) = self.parser.parse(read_id_command)
self.assertEqual(len(frames), 1)
frame = frames[0]
self.assertEqual(frame.length, 21)
self.assertEqual(frame.subnet, 0)
self.assertEqual(frame.control.id_type, IdType.NOID)
self.assertEqual(frame.control.eirp_index, 42)
self.assertEqual(len(frame.target_address), 0)
self.assertEqual(frame.d7anp_frame.control.nls_method, NlsMethod.NONE)
self.assertFalse(frame.d7anp_frame.control.has_hopping)
self.assertFalse(frame.d7anp_frame.control.has_no_origin_access_id)
self.assertEqual(frame.d7anp_frame.control.origin_id_type, IdType.UID)
self.assertEqual(frame.d7anp_frame.origin_access_class, 0x01)
self.assertEqual(frame.d7anp_frame.origin_access_id,
[0, 0, 0, 0, 0, 0, 0, 1])
self.assertTrue(frame.d7anp_frame.d7atp_frame.control.is_dialog_start)
self.assertTrue(frame.d7anp_frame.d7atp_frame.control.has_tl)
self.assertFalse(frame.d7anp_frame.d7atp_frame.control.has_te)
self.assertTrue(frame.d7anp_frame.d7atp_frame.control.is_ack_requested)
self.assertFalse(frame.d7anp_frame.d7atp_frame.control.is_ack_not_void)
self.assertFalse(
frame.d7anp_frame.d7atp_frame.control.is_ack_record_requested)
self.assertFalse(frame.d7anp_frame.d7atp_frame.control.has_agc)
self.assertEqual(frame.d7anp_frame.d7atp_frame.dialog_id, 0xe9)
self.assertEqual(frame.d7anp_frame.d7atp_frame.transaction_id, 0)
self.assertEqual(frame.d7anp_frame.d7atp_frame.tl.exp,
CT(exp=0, mant=5).exp)
self.assertEqual(frame.d7anp_frame.d7atp_frame.tl.mant,
CT(exp=0, mant=5).mant)
self.assertEqual(frame.d7anp_frame.d7atp_frame.tc.exp,
CT(exp=0, mant=5).exp)
self.assertEqual(frame.d7anp_frame.d7atp_frame.tc.mant,
CT(exp=0, mant=5).mant)
self.assertEqual(
len(frame.d7anp_frame.d7atp_frame.alp_command.actions), 1)
alp_action = frame.d7anp_frame.d7atp_frame.alp_command.actions[0]
self.assertEqual(type(alp_action.operation), ReadFileData)
self.assertEqual(type(alp_action.operand), DataRequest)
self.assertEqual(alp_action.operand.offset.id, 0)
self.assertEqual(alp_action.operand.offset.offset.value, 0)
self.assertEqual(alp_action.operand.length, 8)
# TODO self.assertEqual(len(frame.payload), 16)
hexstring = binascii.hexlify(bytearray(read_id_command[:-2])).decode(
'hex') # TODO there must be an easier way...
crc = calculate_crc(hexstring)
self.assertEqual(frame.crc16, (crc[0] << 8) + crc[1])
def test_read_id_response_frame(self):
frame_data = [
0x25, # length
0x00, # subnet
0x80, # dll control
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x01, # target_address
10, # D7ANP timeout
0x20, # D7ANP control
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x02, # origin access ID
0x41, # D7ATP control
0xe9, # dialog ID
0x00, # transaction ID
0x20, # ALP control (return file data operation)
0x00,
0x00,
0x08, # file data operand
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x02, # UID
]
frame_data = frame_data + calculate_crc(frame_data)
(frames, info) = self.parser.parse(frame_data)
self.assertEqual(len(frames), 1)
frame = frames[0]
self.assertEqual(frame.length, 37)
self.assertEqual(frame.subnet, 0)
self.assertEqual(frame.control.is_target_address_set, True)
self.assertEqual(frame.control.is_target_address_vid, False)
self.assertEqual(frame.control.eirp_index, 0)
self.assertEqual(len(frame.target_address), 8)
self.assertEqual(frame.target_address, [0, 0, 0, 0, 0, 0, 0, 1])
self.assertFalse(frame.d7anp_frame.control.has_network_layer_security)
self.assertFalse(frame.d7anp_frame.control.has_multi_hop)
self.assertTrue(frame.d7anp_frame.control.has_origin_access_id)
self.assertFalse(frame.d7anp_frame.control.is_origin_access_id_vid)
self.assertEqual(frame.d7anp_frame.control.origin_access_class, 0)
self.assertEqual(frame.d7anp_frame.origin_access_id,
[0, 0, 0, 0, 0, 0, 0, 2])
self.assertFalse(frame.d7anp_frame.d7atp_frame.control.is_ack_recorded)
self.assertFalse(frame.d7anp_frame.d7atp_frame.control.
is_ack_return_template_requested)
self.assertTrue(frame.d7anp_frame.d7atp_frame.control.is_dialog_end)
self.assertFalse(frame.d7anp_frame.d7atp_frame.control.is_dialog_start)
self.assertFalse(frame.d7anp_frame.d7atp_frame.control.is_ack_not_void)
self.assertEqual(frame.d7anp_frame.d7atp_frame.dialog_id, 0xe9)
self.assertEqual(frame.d7anp_frame.d7atp_frame.transaction_id, 0)
self.assertEqual(
len(frame.d7anp_frame.d7atp_frame.alp_command.actions), 1)
alp_action = frame.d7anp_frame.d7atp_frame.alp_command.actions[0]
self.assertEqual(type(alp_action.operation), ReturnFileData)
self.assertEqual(type(alp_action.operand), Data)
self.assertEqual(alp_action.operand.offset.id, 0)
self.assertEqual(alp_action.operand.offset.offset, 0)
self.assertEqual(alp_action.operand.length, 8)