def __build_node_information_message(class_object, type, code, payload = None):
#Build ICMP6 header
icmp_packet = ICMP6()
icmp_packet.set_type(type)
icmp_packet.set_code(code)
#Pack ICMP payload
qtype = 0
flags = 0
nonce = [0x00] * 8
icmp_bytes = struct.pack('>H', qtype)
icmp_bytes += struct.pack('>H', flags)
icmp_bytes += array.array('B', nonce).tostring()
if payload is not None:
icmp_bytes += array.array('B', payload).tostring()
icmp_payload = Data()
icmp_payload.set_data(icmp_bytes)
#Link payload to header
icmp_packet.contains(icmp_payload)
return icmp_packet
def __build_node_information_message(class_object,
type,
code,
payload=None):
#Build ICMP6 header
icmp_packet = ICMP6()
icmp_packet.set_type(type)
icmp_packet.set_code(code)
#Pack ICMP payload
qtype = 0
flags = 0
nonce = [0x00] * 8
icmp_bytes = struct.pack('>H', qtype)
icmp_bytes += struct.pack('>H', flags)
icmp_bytes += array.array('B', nonce).tostring()
if payload is not None:
icmp_bytes += array.array('B', payload).tostring()
icmp_payload = Data()
icmp_payload.set_data(icmp_bytes)
#Link payload to header
icmp_packet.contains(icmp_payload)
return icmp_packet
def __build_error_message(class_object, type, code, data, originating_packet_data):
#Build ICMP6 header
icmp_packet = ICMP6()
icmp_packet.set_type(type)
icmp_packet.set_code(code)
#Pack ICMP payload
icmp_bytes = array.array('B', data).tostring()
if (originating_packet_data is not None):
icmp_bytes += array.array('B', originating_packet_data).tostring()
icmp_payload = Data()
icmp_payload.set_data(icmp_bytes)
#Link payload to header
icmp_packet.contains(icmp_payload)
return icmp_packet
def __build_error_message(class_object, type, code, data, originating_packet_data):
#Build ICMP6 header
icmp_packet = ICMP6()
icmp_packet.set_type(type)
icmp_packet.set_code(code)
#Pack ICMP payload
icmp_bytes = array.array('B', data).tostring()
if (originating_packet_data is not None):
icmp_bytes += array.array('B', originating_packet_data).tostring()
icmp_payload = Data()
icmp_payload.set_data(icmp_bytes)
#Link payload to header
icmp_packet.contains(icmp_payload)
return icmp_packet
def __build_echo_message(class_object, type, id, sequence_number, arbitrary_data):
#Build ICMP6 header
icmp_packet = ICMP6()
icmp_packet.set_type(type)
icmp_packet.set_code(0)
#Pack ICMP payload
icmp_bytes = struct.pack('>H', id)
icmp_bytes += struct.pack('>H', sequence_number)
if (arbitrary_data is not None):
icmp_bytes += array.array('B', arbitrary_data).tostring()
icmp_payload = Data()
icmp_payload.set_data(icmp_bytes)
#Link payload to header
icmp_packet.contains(icmp_payload)
return icmp_packet
def __build_echo_message(class_object, type, id, sequence_number, arbitrary_data):
#Build ICMP6 header
icmp_packet = ICMP6()
icmp_packet.set_type(type)
icmp_packet.set_code(0)
#Pack ICMP payload
icmp_bytes = struct.pack('>H', id)
icmp_bytes += struct.pack('>H', sequence_number)
if (arbitrary_data is not None):
icmp_bytes += array.array('B', arbitrary_data).tostring()
icmp_payload = Data()
icmp_payload.set_data(icmp_bytes)
#Link payload to header
icmp_packet.contains(icmp_payload)
return icmp_packet
def __build_neighbor_message(class_object, msg_type, target_address):
#Build ICMP6 header
icmp_packet = ICMP6()
icmp_packet.set_type(msg_type)
icmp_packet.set_code(0)
# Flags + Reserved
icmp_bytes = array.array('B', [0x00] * 4).tostring()
# Target Address: The IP address of the target of the solicitation.
# It MUST NOT be a multicast address.
icmp_bytes += array.array('B', IP6_Address(target_address).as_bytes()).tostring()
icmp_payload = Data()
icmp_payload.set_data(icmp_bytes)
#Link payload to header
icmp_packet.contains(icmp_payload)
return icmp_packet
def __build_neighbor_message(class_object, msg_type, target_address):
#Build ICMP6 header
icmp_packet = ICMP6()
icmp_packet.set_type(msg_type)
icmp_packet.set_code(0)
# Flags + Reserved
icmp_bytes = array.array('B', [0x00] * 4).tostring()
# Target Address: The IP address of the target of the solicitation.
# It MUST NOT be a multicast address.
icmp_bytes += array.array('B', IP6_Address(target_address).as_bytes()).tostring()
icmp_payload = Data()
icmp_payload.set_data(icmp_bytes)
#Link payload to header
icmp_packet.contains(icmp_payload)
return icmp_packet
