def createSetValuesPDU(header, parameter=[], references=[]):
if not isinstance(header, Header):
raise TypeError('Parameter "header" must be of type "Header".')
length = 2
pdu = []
if parameter:
parameterAPDU = createSetParametersAPDU(parameter)
length += len(parameterAPDU)
if references:
referencesAPDU = createSetReferencesAPDU(references)
length += len(referencesAPDU)
pdu.extend(
[header.startDelimiter, length, header.destAddr, header.sourceAddr])
if parameter:
pdu.extend(parameterAPDU)
if references:
pdu.extend(referencesAPDU)
crc = calcuteCrc(pdu)
pdu.extend(bytes(crc))
arr = array.array('B', pdu)
# TODO: arr.tostring() for I/O!
return arr
def createGetValuesPDU(klass,
header,
protocolData=[],
measurements=[],
parameter=[],
references=[],
strings=[]):
if not isinstance(header, Header):
raise TypeError('Parameter "header" must be of type "Header".')
length = 2
pdu = []
if protocolData:
protocolAPDU = createGetProtocolDataAPDU(protocolData)
length += len(protocolAPDU)
if measurements:
measurementAPDU = createGetMeasuredDataAPDU(klass, measurements)
length += len(measurementAPDU)
if parameter:
parameterAPDU = createGetParametersAPDU(parameter)
length += len(parameterAPDU)
if references:
referencesAPDU = createGetReferencesAPDU(references)
length += len(referencesAPDU)
if strings:
stringsAPDU = createGetStringsAPDU(strings)
length += len(stringsAPDU)
pdu.extend(
[header.startDelimiter, length, header.destAddr, header.sourceAddr])
if protocolData:
pdu.extend(protocolAPDU)
if parameter:
pdu.extend(parameterAPDU)
if measurements:
pdu.extend(measurementAPDU)
if references:
pdu.extend(referencesAPDU)
if strings:
pdu.extend(stringsAPDU)
crc = calcuteCrc(pdu)
pdu.extend(bytes(crc))
arr = array.array('B', pdu)
# TODO: arr.tostring() for I/O!
return arr
def createResponse(request):
"""The actual 'simulation' function.
"""
result = []
length = 2
pdus = []
#klasses = []
for a in request.APDUs:
klass = a.klass
ack = a.ack
data = a.data
dataItemsByName = dict([(a, (b, c)) for a, b ,c in DATA_POOL[klass]])
if ack not in defs.CLASS_CAPABILITIES[klass]:
raise defs.IllegalOperationError("%s-Operation not supported." % defs.operationToString(ack))
dataItemsById = dict([(v[2], (k, v[3], v[4])) for k, v in dataitems.DATAITEMS_FOR_CLASS[klass].items()])
apduLength = 0
length += 2
pdu = []
if ack == defs.OS_SET:
pass # Ack = OK, Length = 0 is inherently generated!
else:
for item in data:
name, acess, _ = dataItemsById[item]
#print "KLASS: %s NAME: %s " % (klass, name)
value, info = dataItemsByName[name]
if ack == defs.OS_GET:
apduLength += 1 # Currently only 8-bit data values.
value = 0xff if value is None else value
pdu.append(value)
elif ack == defs.OS_INFO:
sif = info.head & 0b11
pdu.append(info.head)
if sif in (0, 1):
apduLength += 1 # Unscaled value, i.e. no info scale field.
else:
apduLength += 4
pdu.append(info.unit)
pdu.append(info.zero)
pdu.append(info.range)
pdus.append((klass, apduLength, pdu, ))
length += apduLength
if request.da == defs.CONNECTION_REQ_ADDR:
da = getParameterValue('unit_addr') # Handle connection address.
else:
da = request.da
result.extend([defs.SD_DATA_REPLY, length, request.sa, da])
for pdu in pdus:
klass, apduLength, pdu = pdu
result.append(klass)
result.append(apduLength & 0x3f)
result.extend(pdu)
crc = calcuteCrc(result)
result.extend((utils.hiByte(crc), utils.loByte(crc), ))
return bytearray(result)
def createGetInfoPDU(klass,
header,
measurements=[],
parameter=[],
references=[]):
## To be defensive, at most 15 datapoints should be requested at once (min.frame length = 70 bytes).
if not isinstance(header, Header):
raise TypeError('Parameter "header" must be of type "Header".')
length = 2
pdu = []
if measurements:
if klass == defs.APDUClass.MEASURED_DATA:
measurementsAPDU = createGetInfoAPDU(defs.APDUClass.MEASURED_DATA,
measurements)
if klass == defs.APDUClass.SIXTEENBIT_MEASURED_DATA:
measurementsAPDU = createGetInfoAPDU(
defs.APDUClass.SIXTEENBIT_MEASURED_DATA, measurements)
length += len(measurementsAPDU)
if parameter:
parameterAPDU = createGetInfoAPDU(
defs.APDUClass.CONFIGURATION_PARAMETERS, parameter)
length += len(parameterAPDU)
if references:
referencesAPDU = createGetInfoAPDU(defs.APDUClass.REFERENCE_VALUES,
references)
length += len(referencesAPDU)
pdu.extend(
[header.startDelimiter, length, header.destAddr, header.sourceAddr])
if measurements:
pdu.extend(measurementsAPDU)
if parameter:
pdu.extend(parameterAPDU)
if references:
pdu.extend(referencesAPDU)
crc = calcuteCrc(pdu)
pdu.extend(bytes(crc))
arr = array.array('B', pdu)
# TODO: arr.tostring() for I/O!
return arr
def createSetCommandsPDU(header, commands):
if not isinstance(header, Header):
raise TypeError('Parameter "header" must be of type "Header".')
length = 2
pdu = []
commandsAPDU = createSetCommandsAPDU(commands)
length += len(commandsAPDU)
pdu.extend(
[header.startDelimiter, length, header.destAddr, header.sourceAddr])
pdu.extend(commandsAPDU)
crc = calcuteCrc(pdu)
pdu.extend(bytes(crc))
arr = array.array('B', pdu)
# TODO: arr.tostring() for I/O!
return arr
def createResponse(request):
"""The actual 'simulation' function.
"""
result = []
length = 2
pdus = []
#klasses = []
for a in request.APDUs:
klass = a.klass
ack = a.ack
data = a.data
dataItemsByName = dict([(a, (b, c)) for a, b, c in DATA_POOL[klass]])
if ack not in defs.CLASS_CAPABILITIES[klass]:
raise defs.IllegalOperationError("%s-Operation not supported." %
defs.operationToString(ack))
dataItemsById = dict([
(v[2], (k, v[3], v[4]))
for k, v in dataitems.DATAITEMS_FOR_CLASS[klass].items()
])
apduLength = 0
length += 2
pdu = []
if ack == defs.OS_SET:
pass # Ack = OK, Length = 0 is inherently generated!
else:
for item in data:
name, acess, _ = dataItemsById[item]
#print("KLASS: %s NAME: %s " % (klass, name))
value, info = dataItemsByName[name]
if ack == defs.OS_GET:
if klass == 11:
apduLength += 2 # 16-bit data values.
value1 = 0xff if value is None else value
pdu.append(value1)
value2 = 0xff if value is None else value
pdu.append(value2)
else:
apduLength += 1 # 8-bit data values.
value1 = 0xff if value is None else value
pdu.append(value)
elif ack == defs.OS_INFO:
sif = info.head & 0b11
pdu.append(info.head)
if sif in (0, 1):
apduLength += 1 # Unscaled value, i.e. no info scale field.
else:
apduLength += 4
pdu.append(info.unit)
pdu.append(info.zero)
pdu.append(info.range)
pdus.append((
klass,
apduLength,
pdu,
))
length += apduLength
if request.da == defs.CONNECTION_REQ_ADDR:
da = getParameterValue('unit_addr') # Handle connection address.
else:
da = request.da
result.extend([defs.SD_DATA_REPLY, length, request.sa, da])
for pdu in pdus:
klass, apduLength, pdu = pdu
result.append(klass)
result.append(apduLength & 0x3f)
result.extend(pdu)
crc = calcuteCrc(result)
result.extend((
utils.hiByte(crc),
utils.loByte(crc),
))
return bytearray(result)
def test06(self):
self.assertEqual(calcuteCrc(TEST_VECTORS[5]), RESULTS[5])