def readfile( month, day, hour, webpageId ):
strId = '.'.join([str(month), str(day), str(hour), str(webpageId)])
trace = Trace(webpageId)
start = 0
absPath = __constructAbsolutePath( month, day, hour, webpageId )
if absPath:
pcapReader = dpkt.pcap.Reader( file( absPath, "rb") )
for ts, buf in pcapReader:
eth = dpkt.ethernet.Ethernet(buf)
ip = eth.data
tcp = ip.data
if start==0: start = ts
direction = Packet.UP
if (tcp.sport==22):
direction = Packet.DOWN
delta = int(round(((ts - start) * 1000),0))
length = ip.len + Packet.HEADER_ETHERNET
trace.addPacket( Packet(direction, delta, length ) )
return trace
def readfile( month, day, hour, webpageId ):
strId = '.'.join([str(month), str(day), str(hour), str(webpageId)])
trace = Trace(webpageId)
start = 0
absPath = __constructAbsolutePath( month, day, hour, webpageId )
if absPath:
pcapReader = dpkt.pcap.Reader( file( absPath, "rb") )
for ts, buf in pcapReader:
eth = dpkt.ethernet.Ethernet(buf)
ip = eth.data
tcp = ip.data
if start==0: start = ts
direction = Packet.UP
if (tcp.sport==22):
direction = Packet.DOWN
delta = int(round(((ts - start) * 1000),0))
length = ip.len + Packet.HEADER_ETHERNET
trace.addPacket( Packet(direction, delta, length ) )
return trace
def readfile(month, day, hour, webpageId):
strId = '.'.join([str(month), str(day), str(hour), str(webpageId)])
trace = Trace(webpageId)
start = 0
absPath = __constructAbsolutePath(month, day, hour, webpageId)
# testing
#print absPath
if absPath:
pcapReader = dpkt.pcap.Reader(file(absPath, "rb"))
for ts, buf in pcapReader:
eth = dpkt.ethernet.Ethernet(buf)
ip = eth.data
tcp = ip.data
#dpkt.Packet.__flags__
if start == 0: start = ts
direction = Packet.UP
if (tcp.sport == 22):
direction = Packet.DOWN
if (config.DATA_SOURCE == 3):
if (tcp.sport == 9001 or tcp.sport == 443):
direction = Packet.DOWN
if (config.DATA_SOURCE == 4 or config.DATA_SOURCE == 41
or config.DATA_SOURCE == 42):
if (tcp.sport == 8080 or tcp.sport == 443):
direction = Packet.DOWN
#testing
#origTimeDiff = ts - start
#origTimeDiff = (ts - start) * 1000
#origTimeDiff = round(((ts - start) * 1000),0)
#origTimeDiff = int(round(((ts - start) * 1000),0))
#print origTimeDiff
delta = int(round(((ts - start) * 1000), 0))
length = ip.len + Packet.HEADER_ETHERNET
'''
if (config.DATA_SOURCE==3): # overcoming the packet size greater than 1500
while True:
if length > 1500: # MTU
excludedLength = random.randint(595, 1500)
trace.addPacket( Packet(direction, delta, excludedLength ) )
length = length - excludedLength
else:
trace.addPacket( Packet(direction, delta, length ) )
break
else:
trace.addPacket( Packet(direction, delta, length ) )
'''
trace.addPacket(Packet(direction, delta, length))
return trace
def readfileHoneyPatchSomePackets(webpageId, traceIndex):
trace = Trace(webpageId)
start = 0
if config.DATA_SOURCE == 6:
absPath = __constructAbsolutePathHoneyPatch(webpageId, traceIndex)
elif config.DATA_SOURCE == 61:
absPath = __constructAbsolutePathHoneyPatchMultiClass(
webpageId, traceIndex)
elif config.DATA_SOURCE == 62 or config.DATA_SOURCE == 63 or config.DATA_SOURCE == 64:
absPath = __constructAbsolutePathHoneyPatchMultiClassAttackBenign(
webpageId, traceIndex)
packetCtr = 0
if absPath:
try:
pcapReader = dpkt.pcap.Reader(file(absPath, "rb"))
except:
print absPath + ' has a problem reading file, testing'
return trace
#sys.exit(2)
#print absPath + ' is ok'
firstTCP = False
firstPacketkPort = 70000
try:
for ts, buf in pcapReader:
eth = dpkt.ethernet.Ethernet(buf)
ip = eth.data
tcp = ip.data
if "TCP" not in str(type(
ip.data)) or tcp.sport == 80 or tcp.dport == 80:
continue
if firstTCP == False:
firstTCP = True
firstPacketkPort = tcp.sport # uplink
if start == 0: start = ts
direction = Packet.UP
if (tcp.sport == 22):
direction = Packet.DOWN
if (config.DATA_SOURCE == 3):
if (tcp.sport == 9001 or tcp.sport == 443):
direction = Packet.DOWN
if (config.DATA_SOURCE == 4 or config.DATA_SOURCE == 41
or config.DATA_SOURCE == 42 or config.DATA_SOURCE == 6
or config.DATA_SOURCE == 61 or config.DATA_SOURCE == 62
or config.DATA_SOURCE == 63
or config.DATA_SOURCE == 64):
#if (tcp.sport==8080 or tcp.sport==443):
#direction = Packet.DOWN
if tcp.sport == firstPacketkPort:
direction = Packet.UP
else:
direction = Packet.DOWN
delta = int(round(((ts - start) * 1000), 0))
length = ip.len + Packet.HEADER_ETHERNET
trace.addPacket(Packet(direction, delta, length))
packetCtr += 1
# Some packets from the trace are added
if config.NUM_TRACE_PACKETS != -1 and packetCtr >= config.NUM_TRACE_PACKETS:
break
except:
print 'file ' + absPath + ' has a problem.'
return trace