def send_udp_reply(pkt):
ip = IP()
udp = UDP()
ip.src = pkt[IP].dst
ip.dst = pkt[IP].src
udp.id = pkt[UDP].id
udp.sport = pkt[UDP].dport
udp.dport = pkt[UDP].sport
print("[UDP] Sending UDP reply to %s" % ip.dst)
data = "Udp reply"
send(ip / udp / data, verbose=0)
def send_tcp_reply(pkt, flag):
ip = IP()
tcp = TCP()
ip.src = pkt[IP].dst
ip.dst = pkt[IP].src
tcp.ack = pkt[TCP].ack
tcp.sport = pkt[TCP].dport
tcp.dport = pkt[TCP].sport
tcp.flags = flag
print("[UDP] Sending TCP reply to %s" % ip.dst)
data = "Tcp reply"
send(ip / tcp / data)
def send_echo_reply(pkt):
ip = IP()
icmp = ICMP()
ip.src = pkt[IP].dst
ip.dst = pkt[IP].src
icmp.type = 0
icmp.code = 0
icmp.id = pkt[ICMP].id
icmp.seq = pkt[ICMP].seq
print("[ICMP] Sending echo reply to %s" % ip.dst)
data = "Icmp reply"
send(ip/icmp/data, verbose=0)