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iscx_dataset_splitter.py
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iscx_dataset_splitter.py
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#!/usr/bin/python
import hashlib
import os
import pcapy
import sys
import time
from impacket import ImpactDecoder, ImpactPacket
from lxml import etree
def main(argv):
try:
os.environ['TZ'] = 'Europe/London'
labels = {}
fdataset = etree.parse(argv[1])
root = fdataset.getroot()
for record in root.getchildren():
parsed = {}
parsed["src_address"] = record.find("source").text
parsed["dst_address"] = record.find("destination").text
parsed["src_port"] = record.find("sourcePort").text
parsed["dst_port"] = record.find("destinationPort").text
parsed["protocol"] = record.find("protocolName").text
parsed["label"] = record.find("Tag").text
parsed["start_time"] = record.find("startDateTime").text.replace("T", " ")
parsed["stop_time"] = record.find("stopDateTime").text.replace("T", " ")
save_label(labels, parsed)
#bpf_src = "src host " + parsed["src_address"]
#bpf_dst = "dst host " + parsed["dst_address"]
#bpf_src_port = "src port " + parsed["src_port"]
#bpf_dst_port = "dst port " + parsed["dst_port"]
print("Labels are stored, reading pcap files...\n")
try:
read_pcap(argv[1], labels)
except pcapy.PcapError as e:
print e
print("Done\n")
except IndexError as e:
print e.message
print "Usage : python iscx_dataset_splitter.py <labelled filename>"
def save_label(labels, parsed):
id = "{}-{}-{}-{}-{}".format(parsed["src_address"], parsed["src_port"], parsed["dst_address"], parsed["dst_port"], parsed["protocol"])
id_rev = "{}-{}-{}-{}-{}".format(parsed["dst_address"], parsed["dst_port"], parsed["src_address"], parsed["src_port"], parsed["protocol"])
# minus 4 hours spare 10 minutes before and after the written time
start_time = convert_epochfromstring(parsed['start_time']) + 13800
stop_time = convert_epochfromstring(parsed['stop_time']) + 15000
for i in range(0, 1000):
if labels.has_key(id + "-{}".format(i)):
continue
else:
id += "-{}".format(i)
id_rev += "-{}".format(i)
break
labels[id] = {'label': parsed["label"], 'start_time': start_time, 'stop_time': stop_time}
labels[id_rev] = {'label': parsed["label"], 'start_time': start_time, 'stop_time': stop_time}
def convert_timefromepoch(epochTimestamp):
return time.strftime('%Y/%m/%d %H:%M:%S', time.gmtime(epochTimestamp))
def convert_epochfromstring(timeString):
pattern = '%Y-%m-%d %H:%M:%S'
epoch = int(time.mktime(time.strptime(timeString, pattern)))
return epoch
def parse_packet(labels, dumper, header, packet):
decoder = ImpactDecoder.EthDecoder()
ether = decoder.decode(packet)
ts = int(header.getts()[0])
#print str(ether.get_ether_type()) + " " + str(ImpactPacket.IP.ethertype)
if ether.get_ether_type() == ImpactPacket.IP.ethertype:
iphdr = ether.child()
transporthdr = iphdr.child()
s_addr = iphdr.get_ip_src()
d_addr = iphdr.get_ip_dst()
if isinstance(transporthdr, ImpactPacket.TCP):
s_port = transporthdr.get_th_sport()
d_port = transporthdr.get_th_dport()
seq_num = transporthdr.get_th_seq()
d_length = len(transporthdr.get_data_as_string())
protocol = "tcp_ip"
elif isinstance(transporthdr, ImpactPacket.UDP):
s_port = transporthdr.get_uh_sport()
d_port = transporthdr.get_uh_dport()
seq_num = 0
d_length = transporthdr.get_uh_ulen()
protocol = "udp_ip"
elif isinstance(transporthdr, ImpactPacket.ICMP):
s_port = 0
d_port = 0
seq_num = 0
d_length = 0
protocol = "icmp"
elif isinstance(transporthdr, ImpactPacket.IGMP):
s_port = 0
d_port = 0
seq_num = 0
d_length = 0
protocol = "igmp"
else:
s_port = 0
d_port = 0
seq_num = 0
d_length = -1
protocol = transporthdr.__class__
#if d_length == 0 and (protocol == "tcp_ip" or protocol == "udp_ip"):
# return
id = "{}-{}-{}-{}-{}".format(s_addr, s_port, d_addr, d_port, protocol)
is_label_found = False
for i in range(0, 1000):
tmp_id = id + "-{}".format(i)
if labels.has_key(tmp_id):
if ts > labels[tmp_id]["start_time"] and ts < labels[tmp_id]["stop_time"]:
# print convert_timefromepoch(ts), convert_timefromepoch(labels[tmp_id]["start_time"]), convert_timefromepoch(labels[tmp_id]["stop_time"])
if labels[tmp_id]["label"] == "Normal":
dumper[0].dump(header, packet)
else:
dumper[1].dump(header, packet)
is_label_found = True
break
else:
continue
else:
continue
if not is_label_found:
dumper[2].dump(header, packet)
def read_pcap(data_date, labels):
filename = data_date[data_date.index("Testbed"):len(data_date)-4]
date_to_filename = {'TestbedSatJun12Flows' : '12jun',
'TestbedSunJun13Flows' : '13jun',
'TestbedMonJun14Flows' : '14jun',
'TestbedTueJun15-1Flows': '15jun',
'TestbedTueJun15-2Flows': '15jun',
'TestbedTueJun15-3Flows': '15jun',
'TestbedWedJun16-1Flows': '16jun',
'TestbedWedJun16-2Flows': '16jun',
'TestbedWedJun16-3Flows': '16jun',
'TestbedThuJun17-1Flows' : '17jun',
'TestbedThuJun17-2Flows' : '17jun',
'TestbedThuJun17-3Flows' : '17jun',
}
dataset_dir = "/home/baskoro/Documents/Dataset/ISCX12/without retransmission/"
cap = pcapy.open_offline(dataset_dir + "testbed-" + date_to_filename[filename] + ".pcap")
dumper = []
dumper.append(cap.dump_open(dataset_dir + "testbed-" + date_to_filename[filename] + "-normal.pcap"))
dumper.append(cap.dump_open(dataset_dir + "testbed-" + date_to_filename[filename] + "-attack.pcap"))
dumper.append(cap.dump_open(dataset_dir + "testbed-" + date_to_filename[filename] + "-unknown.pcap"))
counter = 0
# for i in range(0,1000):
while(1):
(header, packet) = cap.next()
if not header:
break
parse_packet(labels, dumper, header, packet)
counter += 1
sys.stdout.write("\rProcessed {} packets.".format(counter))
sys.stdout.flush()
if __name__ == '__main__':
main(sys.argv)