def parse_from(self, packet_bytes):
packet = PTCPacket()
source_ip = self.parse_source_ip_on(packet_bytes)
destination_ip = self.parse_destination_ip_on(packet_bytes)
transport_packet_bytes = self.get_transport_packet_bytes_from(packet_bytes)
source_port = self.parse_source_port_on(transport_packet_bytes)
destination_port = self.parse_destination_port_on(transport_packet_bytes)
seq_number = self.parse_seq_number_on(transport_packet_bytes)
ack_number = self.parse_ack_number_on(transport_packet_bytes)
flags = self.parse_flags_on(transport_packet_bytes)
data = self.parse_data_on(transport_packet_bytes)
packet.set_source_ip(source_ip)
packet.set_destination_ip(destination_ip)
packet.set_source_port(source_port)
packet.set_destination_port(destination_port)
packet.set_seq_number(seq_number)
packet.set_ack_number(ack_number)
packet.add_flags(flags)
packet.set_payload(data)
return packet
def build(self, payload=None, flags=None, seq=None, ack=None):
packet = PTCPacket()
source_address = self.control_block.get_source_address()
source_port = self.control_block.get_source_port()
dst_address = self.control_block.get_destination_address()
dst_port = self.control_block.get_destination_port()
packet.set_source_ip(source_address)
packet.set_destination_ip(dst_address)
packet.set_source_port(source_port)
packet.set_destination_port(dst_port)
if payload is not None:
packet.set_payload(payload)
if flags is not None:
packet.add_flags(flags)
if seq is not None:
packet.set_seq_number(seq)
if ack is not None:
packet.set_ack_number(ack)
return packet
def build(self, payload=None, flags=None, seq=None, ack=None):
packet = PTCPacket()
source_address = self.control_block.get_source_address()
source_port = self.control_block.get_source_port()
dst_address = self.control_block.get_destination_address()
dst_port = self.control_block.get_destination_port()
packet.set_source_ip(source_address)
packet.set_destination_ip(dst_address)
packet.set_source_port(source_port)
packet.set_destination_port(dst_port)
if payload is not None:
packet.set_payload(payload)
if flags is not None:
packet.add_flags(flags)
if seq is not None:
packet.set_seq_number(seq)
if ack is not None:
packet.set_ack_number(ack)
return packet
def decode(self, packet_bytes):
packet = PTCPacket()
source_ip = self.decode_source_ip_on(packet_bytes)
destination_ip = self.decode_destination_ip_on(packet_bytes)
transport_bytes = self.get_transport_packet_bytes_from(packet_bytes)
source_port = self.decode_source_port_on(transport_bytes)
destination_port = self.decode_destination_port_on(transport_bytes)
seq_number = self.decode_seq_number_on(transport_bytes)
ack_number = self.decode_ack_number_on(transport_bytes)
flags = self.decode_flags_on(transport_bytes)
window_size = self.decode_window_size_on(transport_bytes)
data = self.decode_data_on(transport_bytes)
packet.set_source_ip(source_ip)
packet.set_destination_ip(destination_ip)
packet.set_source_port(source_port)
packet.set_destination_port(destination_port)
packet.set_seq_number(seq_number)
packet.set_ack_number(ack_number)
packet.add_flags(flags)
packet.set_window_size(window_size)
packet.set_payload(data)
return packet
def build(self, payload=None, flags=None, seq=None, ack=None, window=None):
packet = PTCPacket()
packet.set_source_ip(self.source_address)
packet.set_destination_ip(self.destination_address)
packet.set_source_port(self.source_port)
packet.set_destination_port(self.destination_port)
if payload is not None:
packet.set_payload(payload)
if flags is not None:
packet.add_flags(flags)
if seq is not None:
packet.set_seq_number(seq)
if ack is not None:
packet.set_ack_number(ack)
if window is not None:
packet.set_window_size(window)
return packet
def build(self, payload=None, flags=None, seq=None, ack=None, window=None):
packet = PTCPacket()
packet.set_source_ip(self.source_address)
packet.set_destination_ip(self.destination_address)
packet.set_source_port(self.source_port)
packet.set_destination_port(self.destination_port)
if payload is not None:
packet.set_payload(payload)
if flags is not None:
packet.add_flags(flags)
if seq is not None:
packet.set_seq_number(seq)
if ack is not None:
packet.set_ack_number(ack)
if window is not None:
packet.set_window_size(window)
return packet