def taste(tcp):
((src, sport), (dst, dport)) = tcp.addr
if tcp.module_data["isodate"]:
timestamp = packet_isodate(tcp.timestamp)
else:
timestamp = packet_timedate(tcp.timestamp)
tcp.module_data["streams"][str(tcp.addr)] = {
"type": "stream",
"data": {
"comm_order": [],
"start_time": timestamp,
"end_time": timestamp,
"src": src,
"sport": sport,
"dst": dst,
"dport": dport,
"client_data_transfer": 0,
"server_data_transfer": 0,
"total_packets": 0,
},
}
if "start_time" not in tcp.module_data["pcap_summary"]["data"]:
tcp.module_data["pcap_summary"]["data"]["start_time"] = timestamp
tcp.module_data["pcap_summary"]["data"]["total_streams"] += 1
return True
def taste(tcp):
((src, sport), (dst, dport)) = tcp.addr
if tcp.module_data['isodate']:
timestamp = packet_isodate(tcp.timestamp)
else:
timestamp = packet_timedate(tcp.timestamp)
tcp.module_data['streams'][str(tcp.addr)] = {
'type': 'stream',
'data': {
'comm_order': [],
'start_time': timestamp,
'end_time': timestamp,
'src': src,
'sport': sport,
'dst': dst,
'dport': dport,
'client_data_transfer': 0,
'server_data_transfer': 0,
'total_packets': 0
}
}
if 'start_time' not in tcp.module_data['pcap_summary']['data']:
tcp.module_data['pcap_summary']['data']['start_time'] = timestamp
tcp.module_data['pcap_summary']['data']['total_streams'] += 1
return True
def handleStream(tcp):
key = str(tcp.addr)
((src, sport), (dst, dport)) = parse_addr(tcp)
if tcp.module_data["isodate"]:
timestamp = packet_isodate(tcp.timestamp)
else:
timestamp = packet_timedate(tcp.timestamp)
ps = tcp.module_data["pcap_summary"]["data"]
cs = tcp.module_data["streams"][key]["data"]
if tcp.server.count_new > 0:
comm = {
"data_to": "S",
"data_len": tcp.server.count_new,
"entropy": entropy(tcp.server.data[: tcp.server.count_new]),
}
cs["comm_order"].append(comm)
cs["server_data_transfer"] += tcp.server.count_new
ps["total_data_transfer"] += tcp.server.count_new
tcp.discard(tcp.server.count_new)
else:
comm = {
"data_to": "C",
"data_len": tcp.client.count_new,
"entropy": entropy(tcp.client.data[: tcp.client.count_new]),
}
cs["comm_order"].append(comm)
cs["client_data_transfer"] += tcp.client.count_new
ps["total_data_transfer"] += tcp.client.count_new
tcp.discard(tcp.client.count_new)
cs["end_time"] = timestamp
cs["total_packets"] += 1
ps["total_packets"] += 1
ps["end_time"] = timestamp
return
def handleStream(tcp):
key = str(tcp.addr)
((src, sport), (dst, dport)) = parse_addr(tcp)
if tcp.module_data['isodate']:
timestamp = packet_isodate(tcp.timestamp)
else:
timestamp = packet_timedate(tcp.timestamp)
ps = tcp.module_data['pcap_summary']['data']
cs = tcp.module_data['streams'][key]['data']
if tcp.server.count_new > 0:
comm = {
'data_to': 'S',
'data_len': tcp.server.count_new,
'entropy': entropy(tcp.server.data[:tcp.server.count_new])
}
cs['comm_order'].append(comm)
cs['server_data_transfer'] += tcp.server.count_new
ps['total_data_transfer'] += tcp.server.count_new
tcp.discard(tcp.server.count_new)
else:
comm = {
'data_to': 'C',
'data_len': tcp.client.count_new,
'entropy': entropy(tcp.client.data[:tcp.client.count_new])
}
cs['comm_order'].append(comm)
cs['client_data_transfer'] += tcp.client.count_new
ps['total_data_transfer'] += tcp.client.count_new
tcp.discard(tcp.client.count_new)
cs['end_time'] = timestamp
cs['total_packets'] += 1
ps['total_packets'] += 1
ps['end_time'] = timestamp
return