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NIDPS.py
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NIDPS.py
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from pox.core import core
from pox.openflow import *
import string
import time
import threading
import pdb
from utils import *
from SimpleL2Learning import SimpleL2LearningSwitch
from pox.lib.packet.ethernet import ethernet
from pox.lib.packet.vlan import vlan
from pox.lib.packet.ipv4 import ipv4
from pox.lib.packet.arp import arp
from pox.lib.packet.tcp import tcp
from pox.lib.addresses import IPAddr, EthAddr
import urllib2
log = core.getLogger() # Use central logging service
SCRIPT_PATH = os.path.dirname(os.path.abspath(__file__))
FLOW_HARD_TIMEOUT = 30
FLOW_IDLE_TIMEOUT = 10
class LoadBalancerSwitch(SimpleL2LearningSwitch):
def __init__(self, connection, config):
SimpleL2LearningSwitch.__init__(self, connection, False)
self._connection = connection;
#self.report = "~/testreportlog";
self._serverip1 = config['server_ip1']
self._serverip2 = config['server_ip2']
self._serverip1_mac = config['server_ip1_mac']
self._serverip2_mac = config['server_ip2_mac']
self._clientip1 = config['client_ip1']
self._clientip2 = config['client_ip2']
self._clientip3 = config['client_ip3']
self._clientip4 = config['client_ip4']
self._clientip1_mac = config['client_ip1_mac']
self._clientip2_mac = config['client_ip2_mac']
self._clientip3_mac = config['client_ip3_mac']
self._clientip4_mac = config['client_ip4_mac']
self.FLAG = 0
self.lock1 = threading.Lock()
self.thread_flag = 1
#Client Threat Status - 0: Low, 1: Medium, 2: High
self.client1_status = 0
self.client2_status = 0
self.client3_status = 0
#Server Threat Status - 0: Low, 1: Medium, 2: High
self.server1_status = 0
#Info Counters
self.server1_low_threat = 0
self.server1_medium_threat = 0
self.server1_high_threat = 0
self.client1_low_threat = 0
self.client1_medium_threat = 0
self.client1_medium_threat = 0
self.client2_low_threat = 0
self.client2_medium_threat = 0
self.client2_medium_threat = 0
self.client3_low_threat = 0
self.client3_medium_threat = 0
self.client3_medium_threat = 0
self.client1_traffic_blocked = 0
self.client2_traffic_blocked = 0
self.client3_traffic_blocked = 0
self.user_traffic = 0
self.user_traffic_redirected = 0
self.user_return_traffic_redirected = 0
self.other_traffic = 0
def _handle_PacketIn(self, event):
inport = event.port
self.packet = event.parsed
self.event = event
self.macLearningHandle()
actions = []
if self.thread_flag == 1:
thr1 = threading.Thread(target = self.parseAttackGraph)
thr1.start()
self.thread_flag = 0
if packetDstIp(self.packet, self._serverip1, log):
if (self.server1_status == 0): # Server 1 is in Low Attack Threat Mode
# Allow all traffic to pass through to Server 1 : Attack Traffic + Legitimate Traffic
self.server1_low_threat = self.server1_low_threat + 1
SimpleL2LearningSwitch._handle_PacketIn(self, event)
if (self.server1_low_threat % 5000 == 0) :
log.info("Server1_Low_Threat_Level: %d Client_Threats: %d, %d, %d" %(self.server1_low_threat, self.client1_status, self.client2_status, self.client3_status))
elif (self.server1_status == 1): #Server 1 is in Medium Attack Threat Mode
#log.info("Packet SRC MAC: %s" %(self.packet.src))
self.server1_medium_threat = self.server1_medium_threat + 1
if (self.server1_medium_threat % 5000 == 0) :
log.info("Server1_Medium_Threat_Level: %d Client_Threats : %d, %d, %d" %(self.server1_medium_threat, self.client1_status, self.client2_status, self.client3_status))
if(str(self.packet.src) == str(self._clientip1_mac)):
if (self.client1_status == 0):
self.client1_low_threat = self.client1_low_threat + 1
if (self.client1_low_threat % 500 == 0) :
log.info("Server1_Medium_Threat_Level + Client1_Low_Threat_Level: %d " % self.client1_low_threat)
SimpleL2LearningSwitch._handle_PacketIn(self, event)
elif (self.client1_status == 1 or self.client1_status == 2):
if (self.client1_status == 1):
self.client1_medium_threat = self.client1_medium_threat + 1
if (self.client1_medium_threat % 500 == 0) :
log.info("Server1_Medium_Threat_Level + Client1_Medium_Threat_Level: %d " % self.client1_medium_threat)
elif (self.client1_status == 2):
self.client1_high_threat = self.client1_high_threat + 1
if (self.client1_high_threat % 500 == 0) :
log.info("Server1 Medium_Threat_Level + Client1_High_Threat_Level: %d " % self.client1_high_threat)
#Block Traffic
self.client1_traffic_blocked = self.client1_traffic_blocked + 1
if (self.client1_traffic_blocked % 500 == 0) :
log.info("Server1_Medium_Threat_Level + Client1_Attack_Blocked: %d " % self.client1_traffic_blocked)
msg = of.ofp_flow_mod()
msg.priority = 20
msg.actions.append(of.ofp_action_output(port=of.OFPP_NONE))
# create generic match
#match = of.ofp_match()
# policy in one direction
#match.dl_src = self._clientip1_mac
#match.nw_dst = self._serverip1
match = getFullMatch(self.packet, inport)
msg.match = match
event.connection.send(msg)
elif(str(self.packet.src) == str(self._clientip2_mac)):
if (self.client2_status == 0):
self.client2_low_threat = self.client2_low_threat + 1
if (self.client2_low_threat % 500 == 0) :
log.info("Server1_Medium_Threat_Level + Client2_Low_Threat_Level: %d " % self.client2_low_threat)
SimpleL2LearningSwitch._handle_PacketIn(self, event)
elif (self.client2_status == 1 or self.client2_status == 2):
if (self.client2_status == 1):
self.client2_medium_threat = self.client2_medium_threat + 1
if (self.client2_medium_threat % 500 == 0) :
log.info("Server1_Medium_Threat_Level + Client2_Medium_Threat_Level: %d " % self.client2_medium_threat)
elif (self.client2_status == 2):
self.client2_high_threat = self.client2_high_threat + 1
if (self.client2_high_threat % 500 == 0) :
log.info("Server1_Medium_Threat_Level + Client2_High_Threat_Level: %d " % self.client2_high_threat)
#Block Traffic
self.client2_traffic_blocked = self.client2_traffic_blocked + 1
if (self.client2_traffic_blocked % 500 == 0) :
log.info("Server1_Medium_Threat_Level + Client2_Attack_Blocked: %d " % self.client2_traffic_blocked)
msg = of.ofp_flow_mod()
msg.priority = 20
msg.actions.append(of.ofp_action_output(port=of.OFPP_NONE))
# create generic match
#match = of.ofp_match()
# policy in one direction
#match.dl_src = self._clientip2_mac
#match.nw_dst = self._serverip1
match = getFullMatch(self.packet, inport)
msg.match = match
event.connection.send(msg)
elif(str(self.packet.src) == str(self._clientip3_mac)):
if (self.client3_status == 0):
self.client3_low_threat = self.client3_low_threat + 1
if (self.client3_low_threat % 500 == 0) :
log.info("Server1_Medium_Threat_Level + Client3_Low_Threat_Level: %d " % self.client3_low_threat)
SimpleL2LearningSwitch._handle_PacketIn(self, event)
elif (self.client3_status == 1 or self.client3_status == 2):
if (self.client3_status == 1):
self.client3_medium_threat = self.client3_medium_threat + 1
if (self.client3_medium_threat % 500 == 0) :
log.info("Server1_Medium_Threat_Level + Client3_Medium_Threat_Level: %d " % self.client3_medium_threat)
elif (self.client3_status == 2):
self.client3_high_threat = self.client3_high_threat + 1
if (self.client3_high_threat % 500 == 0) :
log.info("Server1_Medium_Threat_Level + Client3_High_Threat_Level: %d " % self.client3_high_threat)
#Block Traffic
self.client3_traffic_blocked = self.client3_traffic_blocked + 1
if (self.client3_traffic_blocked % 500 == 0) :
log.info("Server1_Medium_Threat_Level + Client3_Attack_Blocked: %d " % self.client3_traffic_blocked)
msg = of.ofp_flow_mod()
msg.priority = 20
msg.actions.append(of.ofp_action_output(port=of.OFPP_NONE))
# create generic match
#match = of.ofp_match()
# policy in one direction
#match.dl_src = self._clientip3_mac
#match.nw_dst = self._serverip1
match = getFullMatch(self.packet, inport)
msg.match = match
event.connection.send(msg)
elif(str(self.packet.src) == str(self._clientip4_mac)):
self.user_traffic = self.user_traffic + 1
if (self.user_traffic % 500 == 0) :
log.info("Server1_Medium_Threat_Level + User_Traffic_From_Client4: %d " % self.user_traffic)
SimpleL2LearningSwitch._handle_PacketIn(self, event) #Consider Load Balancing Here
elif (self.server1_status == 2): #Server 1 is in High Attack Threat Mode
self.server1_high_threat = self.server1_high_threat + 1
if (self.server1_high_threat % 5000 == 0) :
log.info("Server1_High_Threat_Level: %d Client_Threats : %d, %d, %d" %(self.server1_high_threat, self.client1_status, self.client2_status, self.client3_status))
if(str(self.packet.src) == str(self._clientip1_mac) or str(self.packet.src) == str(self._clientip2_mac) or str(self.packet.src) == str(self._clientip3_mac)):
#Block Traffic
msg = of.ofp_flow_mod()
msg.priority = 20
msg.actions.append(of.ofp_action_output(port=of.OFPP_NONE))
# create generic match
#match = of.ofp_match()
# policy in one direction
if(self.packet.src == self._clientip1_mac):
self.client1_traffic_blocked = self.client1_traffic_blocked + 1
if (self.client1_traffic_blocked % 500 == 0) :
log.info("Server1_High_Threat_Level + Client1_Attack_Blocked: %d " % self.client1_traffic_blocked)
#match.dl_src = self._clientip1_mac
if(self.packet.src == self._clientip2_mac):
self.client2_traffic_blocked = self.client2_traffic_blocked + 1
if (self.client2_traffic_blocked % 500 == 0) :
log.info("Server1_High_Threat_Level + Client 2_Attack_Blocked: %d " % self.client2_traffic_blocked)
#match.dl_src = self._clientip2_mac
if(self.packet.src == self._clientip3_mac):
self.client3_traffic_blocked = self.client3_traffic_blocked + 1
if (self.client3_traffic_blocked % 500 == 0) :
log.info("Server1_High_Threat_Level + Client3_Attack_Blocked: %d " % self.client3_traffic_blocked)
#match.dl_src = self._clientip3_mac
#match.nw_dst = self._serverip1
match = getFullMatch(self.packet, inport)
msg.match = match
event.connection.send(msg)
elif(str(self.packet.src) == str(self._clientip4_mac)):
if packetIsTCP(self.packet, log):
#Redirect Traffic to Server 2; Modify Dst IP and Dst MAC
self.user_traffic_redirected = self.user_traffic_redirected + 1
log.info("Server1_High_Threat + Traffic_from_client4_Redirected_to_Server2: %d " % self.user_traffic_redirected)
newaction = createOFAction(of.OFPAT_SET_DL_DST, self._serverip2_mac, log)
actions.append(newaction)
newaction = createOFAction(of.OFPAT_SET_NW_DST, self._serverip2, log)
actions.append(newaction)
newaction = createOFAction(of.OFPAT_SET_TP_DST, 6001, log)
actions.append(newaction)
out_port = 7 ## Outport 7 on OpenVSwitch is connected to Server 2
newaction = createOFAction(of.OFPAT_OUTPUT, out_port, log)
actions.append(newaction)
#match = of.ofp_match()
#match.dl_src = str(self._clientip4_mac)
#match.nw_src = str(self._clientip4)
match = getFullMatch(self.packet, inport)
msg = createFlowMod(match, actions, FLOW_HARD_TIMEOUT, FLOW_IDLE_TIMEOUT, event.ofp.buffer_id)
event.connection.send(msg.pack())
elif (packetDstIp (self.packet, self._clientip4, log) and (str(self.packet.src) == str(self._serverip2_mac))):
if packetIsTCP(self.packet, log):
# Modify Source IP and Source Mac
self.user_return_traffic_redirected = self.user_return_traffic_redirected + 1
log.info("Server1_High_Threat + Return_Traffic_to_client4_modified: %d " % self.user_return_traffic_redirected)
newaction = createOFAction(of.OFPAT_SET_DL_SRC, self._serverip1_mac, log)
actions.append(newaction)
newaction = createOFAction(of.OFPAT_SET_NW_SRC, self._serverip1, log)
actions.append(newaction)
newaction = createOFAction(of.OFPAT_SET_TP_SRC, 5001, log)
actions.append(newaction)
out_port = 4 ## Outport 4 on OpenVSwitch is connected to Client 4
newaction = createOFAction(of.OFPAT_OUTPUT, out_port, log)
actions.append(newaction)
#match = of.ofp_match()
#match.dl_src = str(self._serverip2_mac)
#match.nw_src = str(self._serverip2)
match = getFullMatch(self.packet, inport)
msg = createFlowMod(match, actions, FLOW_HARD_TIMEOUT, FLOW_IDLE_TIMEOUT, event.ofp.buffer_id)
event.connection.send(msg.pack())
else:
self.other_traffic = self.other_traffic + 1
if (self.other_traffic % 1000 == 0) :
log.info("Legitmate_User_Traffic + Return_Traffic: %d " % self.other_traffic)
SimpleL2LearningSwitch._handle_PacketIn(self, event)
def parseAttackGraph(self):
index = 0
while 1:
log.info("#### Refreshing Attack Graph ####")
tot_syn_attack = 0
tot_icmp_attack = 0
tot_nmap_scan = 0
tot_server_attack = 0
fh = open("/var/log/snort/attackgraph", "rw+")
for line in iter(fh):
#print ("Parsing Attack %s : " % line)
cur_attack = line.split(',')
#print ("Attack type found : " + cur_attack[1])
if (int(cur_attack[1]) == 0):
#log.info ("Here incrementing type syn attack");
tot_syn_attack = tot_syn_attack + 1
tot_server_attack = tot_server_attack + 1
elif (int(cur_attack[1]) == 1):
tot_icmp_attack = tot_icmp_attack + 1
tot_server_attack = tot_server_attack + 1
elif (int(cur_attack[1]) == 2):
tot_nmap_scan = tot_nmap_scan + 1
tot_server_attack = tot_server_attack + 1
fh.close()
if (tot_syn_attack < 5) :
self.client1_status = 0;
elif (tot_syn_attack >= 5 and tot_syn_attack <= 10) :
self.client1_status = 1
else:
self.client1_status = 2
if (tot_icmp_attack < 5):
self.client2_status = 0
elif (tot_icmp_attack >= 5 and tot_icmp_attack <= 10) :
self.client2_status = 1
else:
self.client2_status = 2
if (tot_nmap_scan < 5):
self.client3_status = 0
elif (tot_nmap_scan >= 5 and tot_nmap_scan <= 10) :
self.client3_status = 1
else:
self.client3_status = 2
if (tot_server_attack < 5):
self.server1_status = 0
elif (tot_server_attack >= 5 and tot_server_attack <= 10) :
self.server1_status = 1
else:
self.server1_status = 2
log.info('*******************************************************************************************');
log.info('**** Syn Attacks : %d , Client1 STATUS : %d' %(tot_syn_attack,self.client1_status))
log.info('**** ICMP Attacks : %d , Client2 STATUS : %d' %(tot_icmp_attack,self.client1_status))
log.info('**** NMAP Scans : %d , Client3 STATUS : %d' %(tot_nmap_scan,self.client3_status))
log.info('**** Server Attacks : %d , Server STATUS : %d' %(tot_server_attack,self.server1_status))
log.info('*******************************************************************************************');
time.sleep(20)
class LoadBalancer(object):
def __init__(self, config):
core.openflow.addListeners(self)
self._config=config
def _handle_ConnectionUp(self, event):
log.debug("Connection %s" % (event.connection,))
LoadBalancerSwitch(event.connection, self._config)
def launch(config_file=os.path.join(SCRIPT_PATH, "load.config")):
log.debug("Starting N-IDPS " + config_file);
config = readConfigFile(config_file, log)
core.registerNew(LoadBalancer,config["general"])