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- from MessageType import MessageType
- import PayloadGenerator
- from scapy.layers.inet import IP, Ether, UDP, TCP
- from scapy.packet import Raw
- class Packet_Generator():
- """docstring for Packet_Generator"""
- def __init__(self, protocol="udp"):
- super(Packet_Generator, self).__init__()
- self.protocol = protocol
- def generate_Packet(self, ip_src: str="192.168.64.32", ip_dst: str="192.168.64.48", mac_src: str="56:6D:D9:BC:70:1C",
- mac_dst: str="F4:2B:95:B3:0E:1A", port_src: int=1337, port_dst: int=6442,
- tcpflags: str="S", payload: str=""):
- """
- Creates a Packet with the specified Values for the current protocol
- :param ip_src: the source IP address of the IP header
- :param ip_dst the destination IP address of the IP header
- :param mac_src: the source MAC address of the MAC header
- :param mac_dst: the destination MAC address of the MAC header
- :param port_src: the source port of the header
- :param port_dst: the destination port of the header
- :param tcpflags: the TCP flags of the TCP header
- :param payload: the payload of the packet
- :return: the corresponding packet
- """
-
- if(self.protocol == "udp"):
- packet = generate_udp_packet(ip_src=ip_src, ip_dst=ip_dst, mac_src=mac_src, mac_dst=mac_dst,
- port_src=port_src, port_dst=port_dst, payload=payload)
- elif(self.protocol == "tcp"):
- packet = generate_tcp_packet(ip_src=ip_src, ip_dst=ip_dst, mac_src=mac_src, mac_dst=mac_dst,
- port_src=port_src, port_dst=port_dst, tcpflags=tcpflags, payload=payload)
-
- return packet
-
- def generate_MMCOM_Packet(self, ip_src: str="192.168.64.32", ip_dst: str="192.168.64.48", mac_src: str="56:6D:D9:BC:70:1C",
- mac_dst: str="F4:2B:95:B3:0E:1A", port_src: int=1337, port_dst: int=6442, tcpflags: str="S",
- message_type: MessageType=MessageType.HELLO, neighborlist_entries: int=1):
- """
- Creates a Packet for Members-Management-Communication with the specified Values and the current protocol
- :param ip_src: the source IP address of the IP header
- :param ip_dst the destination IP address of the IP header
- :param mac_src: the source MAC address of the MAC header
- :param mac_dst: the destination MAC address of the MAC header
- :param port_src: the source port of the header
- :param port_dst: the destination port of the header
- :param tcpflags: the TCP flags of the TCP header
- :param message_type: affects the size of the payload
- :param neighborlist_entries: Number of entries for the payload
- :return: the corresponding packet
- """
-
- if(message_type == MessageType.HELLO):
- payload_len = 0
- elif(message_type == MessageType.HELLO_REPLY):
- payload_len = 22
- elif(message_type == MessageType.NEIGHBORLIST_REQUEST):
- payload_len = 28
- elif(message_type == MessageType.NEIGHBORLIST_REPLY):
- payload_len = 24 + 6 * neighborlist_entries
- else:
- payload_len = 0
-
- payload = PayloadGenerator.generate_Payload(payload_len)
-
- if(self.protocol == "udp"):
- packet = generate_udp_packet(ip_src=ip_src, ip_dst=ip_dst, mac_src=mac_src, mac_dst=mac_dst,
- port_src=port_src, port_dst=port_dst, payload=payload)
- elif(self.protocol == "tcp"):
- packet = generate_tcp_packet(ip_src=ip_src, ip_dst=ip_dst, mac_src=mac_src, mac_dst=mac_dst,
- port_src=port_src, port_dst=port_dst, tcpflags=tcpflags, payload=payload)
-
- return packet
- def generate_tcp_packet(ip_src:str="192.168.64.32", ip_dst:str="192.168.64.48", mac_src:str="56:6D:D9:BC:70:1C",
- mac_dst:str="F4:2B:95:B3:0E:1A", port_src:int=1337, port_dst:int=6442, tcpflags:str="S", payload:str=""):
- """
- Builds an TCP packet with the values specified by the caller. If a parameter was not specified by the caller,
- it is set to a default value.
-
- :param ip_src: the source IP address of the IP header
- :param ip_dst the destination IP address of the IP header
- :param mac_src: the source MAC address of the MAC header
- :param mac_dst: the destination MAC address of the MAC header
- :param port_src: the source port of the TCP header
- :param port_dst: the destination port of the TCP header
- :param tcpflags: the TCP flags of the TCP header
- :param payload: the payload of the packet
- :return: the corresponding IP packet
- """
- ether = Ether(src=mac_src, dst=mac_dst)
- ip = IP(src=ip_src, dst=ip_dst)
- tcp = TCP(sport=port_src, dport=port_dst, flags=tcpflags)
- packet = ether / ip / tcp / Raw(load=payload)
- return packet
- def generate_udp_packet(ip_src:str="192.168.64.32", ip_dst:str="192.168.64.48", mac_src:str="56:6D:D9:BC:70:1C",
- mac_dst:str="F4:2B:95:B3:0E:1A", port_src:int=1337, port_dst:int=6442, payload:str=""):
- """
- Builds an UDP packet with the values specified by the caller. If a parameter was not specified by the caller,
- it is set to a default value.
-
- :param ip_src: the source IP address of the IP header
- :param ip_dst the destination IP address of the IP header
- :param mac_src: the source MAC address of the MAC header
- :param mac_dst: the destination MAC address of the MAC header
- :param port_src: the source port of the UDP header
- :param port_dst: the destination port of the UDP header
- :param udp_len: length of the UDP packet, 8Byte header + payload
- :param udp_chksum: checksum of the UDP packet
- :param payload: the payload of the packet
- :return: the corresponding UDP packet
- """
- ether = Ether(src=mac_src, dst=mac_dst)
- ip = IP(src=ip_src, dst=ip_dst)
- udp = UDP(sport=port_src, dport=port_dst)
- packet = ether / ip / udp / Raw(load=payload)
- return packet
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