send_gtp.py

#!/usr/bin/env python
import argparse
import sys
import socket
import random
import struct
import argparse

import gpt2

from scapy.all import sendp, send, get_if_list, get_if_hwaddr, hexdump
from scapy.all import Packet
from scapy.all import Ether, IPv6, UDP, TCP
from gpt2 import *

def get_if():
    ifs=get_if_list()
    iface=None # "h1-eth0"
    for i in get_if_list():
        if "eth0" in i:
            iface=i
            break;
    if not iface:
        print "Cannot find eth0 interface"
        exit(1)
    return iface

def main():

    if len(sys.argv)<2:
        print 'pass 2 arguments: <destination> "<message>"'
        exit(1)
    #addr = socket.gethostbyname(sys.argv[1])
    addr = "2001:0DB8:AC10:FE01:0000:0000:0000:0002"#socket.gethostbyname(sys.argv[1])
    iface = get_if()

    print "sending on interface %s to %s" % (iface, str(addr))
    pkt =  Ether(src=get_if_hwaddr(iface), dst='ff:ff:ff:ff:ff:ff')
    #pkt = pkt / IPv6(dst=addr) / UDP(dport=1234 ,sport=random.randint(49152,65535)) / sys.argv[1]
    #pkt = pkt /IPv6(dst=addr) / TCP(dport=1234, sport=random.randint(49152,65535), flags=None) / sys.argv[1]
    #pkt = pkt / IPv6(dst="2001:0DB8:AC10:FE01:0000:0000:0000:0002" , src="2001:0DB8:AC10:FE01:0000:0000:0002:0002") / UDP (sport=64515, dport=2152 ) / GTP_U_Header(TEID=31)/ IPv6() / TCP(dport=random.randint(29152,65535), sport=random.randint(49152,65535)),  / sys.argv[1]
    pkt = pkt / IPv6(dst="2001:0DB8:AC10:FE01:0000:0000:0000:000A" , src="2001:0DB8:AC10:FE01:0000:0000:0000:000B") / UDP (sport=64515, dport=2152 ) / GTP_U_Header(TEID=32, Reserved=0)/ IPv6(dst="2001:0DB8:AC10:FE01:0000:0000:0000:0003" , src="2001:0DB8:AC10:FE01:0000:0000:0002:0002") / TCP(dport=80) / sys.argv[1]
    pkt.show2()
    sendp(pkt, iface=iface, verbose=False)


'''
    if (0 < 1):
        print "sending on interface {}".format(iface)
        pkt =  Ether(src=get_if_hwaddr(iface), dst='ff:ff:ff:ff:ff:ff')
        pkt = pkt / IPv6(dst="2001:0DB8:AC10:FE01:0000:0000:0000:0002", src="2001:0DB8:AC10:FE01:0000:0000:0002:0002") / UDP (sport=64515, dport=2152) / GTP_U_Header() / IPv6(dst=addr) / TCP(dport=random.randint(29152,65535), sport=random.randint(49152,65535)) / args.message
    else:
        print "deu erro~"
        print "sending on interface {} to IP addr {}".format(iface, str(addr))
        pkt =  Ether(src=get_if_hwaddr(iface), dst='ff:ff:ff:ff:ff:ff')
        pkt = pkt / IP(dst=addr) / TCP(dport=2152, sport=random.randint(49152,65535)) / args.message

    pkt.show2()
    pkt.summary()
#    hexdump(pkt)
#    print "len(pkt) = ", len(pkt)
    sendp(pkt, iface=iface, verbose=False)
'''

if __name__ == '__main__':
    main()