def flow_pcap_details(request, flow_pcap_md5):
log = Logger("Pcap file details", "DEBUG")
flow = Flow.objects.get(hash_value=flow_pcap_md5)
url = "".join([settings.BASE_URL, "/api/rest/all_protocols_by_hash/?format=json", "&parent_hash_value=", flow_pcap_md5])
log.message("URL: %s" % (url))
req = urllib2.Request(url, None)
opener = urllib2.build_opener()
f = opener.open(req)
json_response = json.load(f)
json_data = json.dumps(json_response)
json_dir = os.path.join(settings.PROJECT_ROOT, "json_files")
json_file = tempfile.NamedTemporaryFile(mode="w", dir=json_dir, delete=False)
file_name = os.path.basename(json_file.name)
# save the json data to the temporary file
json_file.write(json_data)
json_file.close()
context = {
'page_title': " ".join([flow.file_name, "Details"]),
'flow': flow,
'pcap_operation': "file_details",
'json_file_url': os.path.join(settings.ALTERNATE_BASE_URL, "json_media", file_name),
'json_response': json_response,
'hash_value': flow_pcap_md5,
'select_update_li': ["file_details", "file_summary"]
}
return render_to_response("pcap/file_details.html",
context_instance=RequestContext(request, context))
def __init__(self):
self.log = Logger("SMTP Protocol Handler", "DEBUG")
self.log.message("SMTP protocol handler called")
self.file_name_li = []
self.flow = None
self.toProcess = dict()
self.reportRoot = None
self.streamcounter = 0
def __init__(self):
super(Handler, self).__init__()
self.timestamp = None
self.proto = None
self.src_ip = None
self.dst_ip = None
self.sport = None
self.dport = None
self.ident = None
self.length = None
self.data = None
self.log = Logger("TCP Protocol Handler", "DEBUG")
self.log.message("TCP protocol handler called")
def login_user(request):
log = Logger("Login form", "DEBUG")
form = None
logged = False
if request.session.has_key('logged_in'):
logged = True
if logged or request.method == "POST":
form = LoginForm(request.POST)
if logged or form.is_valid():
user = username = email = password = None
if logged:
username = request.session['username']
email = request.session['user_email']
password = request.session['password']
else:
username = request.POST['username']
request.session['username'] = username
email = request.POST['user_email']
request.session['user_email'] = email
password = request.POST['password']
request.session['password'] = password
user = authenticate(username=username, password=password)
if user is not None:
if user.is_active:
login(request, user)
request.session['logged_in'] = True
user_id = request.user.id
url = "".join([settings.BASE_URL, "/api/rest/all_protocols/?format=json"])
log.message("URL: %s" % (url))
req = urllib2.Request(url, None)
opener = urllib2.build_opener()
f = opener.open(req)
json_response = json.load(f)
json_data = json.dumps(json_response)
json_dir = os.path.join(settings.PROJECT_ROOT, "json_files")
json_file = tempfile.NamedTemporaryFile(mode="w", dir=json_dir, delete=False)
user_json_file = UserJSonFile.objects.filter(user_id=user_id, json_type="summary-size")
if len(user_json_file) > 0:
user_json_file[0].delete()
file_path = os.path.join(settings.PROJECT_ROOT, "json_files", user_json_file[0].json_file_name)
try:
os.unlink(file_path)
except:
pass
file_name = os.path.basename(json_file.name)
# save the json data to the temporary file
json_file.write(json_data)
json_file.close()
user_json_file = UserJSonFile(user_id=user_id, json_type="summary-size", json_file_name=file_name)
user_json_file.save()
context = {
'page_title': 'Welcome to %s' % settings.PROJECT_NAME,
'pcap_operation': "welcome",
'json_file_url': os.path.join(settings.ALTERNATE_BASE_URL, "json_media", file_name),
'json_response': json_response
}
return render_to_response("main/welcome.html", context,
context_instance=RequestContext(request))
else:
context = {
'error_message': 'User is not activated!',
'page_title': 'Login Page'
}
return render_to_response("main/login.html", context,
context_instance=RequestContext(request))
else:
context = {
'error_message': 'Error occured at the user authentication',
'page_title': 'Login Page'
}
return render_to_response("main/login.html", context,
context_instance=RequestContext(request))
else:
context = {
'form': form,
'page_title': 'Login Page'
}
return render_to_response("main/login.html", context,
context_instance=RequestContext(request))
else:
form = LoginForm()
context = {
'form': form,
'page_title': 'Login Page'
}
return render_to_response("main/login.html", context,
context_instance=RequestContext(request))
def file_pcap_summary(request, hash_value):
# to get this work, runserver should be run as bin/django runserver 127.0.0.0:8001 and another instance should be run as
# bin/django runserver
log = Logger("Summary:", "DEBUG")
context = {
'page_title': 'Timeline view for the pcap',
'hash_value': hash_value
}
url = "".join([settings.BASE_URL, "/api/rest/protocols_by_hash/?format=json", "&parent_hash_value=", hash_value])
log.message("URL: %s" % (url))
req = urllib2.Request(url, None)
opener = urllib2.build_opener()
f = None
try:
f = opener.open(req)
json_response = json.load(f)
result = []
response_dict = dict()
legend = []
protocols_found = []
for response in json_response:
# indeed i have only one response for now, i decided to put all responses in one timeline instead of multiple timelines
id = os.urandom(4)
response_dict["id"] = id.encode('hex')
response_dict['title'] = "Summary For the Uploaded PCAP"
response_dict['focus_date'] = None # will be fixed
response_dict['initial_zoom'] = "38"
time_keeper = {'start': None, 'end': None}
importance_keeper = []
# events creation starts here
events = []
for protocol, values in response.iteritems():
count = 0
for value in values:
event_dict = dict()
event_dict['id'] = "-".join([response_dict["id"], protocol, str(count)])
event_dict['link'] = reverse('flow_details', args=(value['flow_id'],))
if value.has_key("type") and value['type']:
event_dict['title'] = value['type']
else:
event_dict['title'] = protocol
if value.has_key('description') and value['description']:
event_dict['description'] = cgi.escape(value['description'])
else:
event_dict['description'] = "No description is set"
event_dict['startdate'] = value['start']
event_dict['enddate'] = value['end']
dt_start = datetime.datetime.strptime(value['start'], "%Y-%m-%d %H:%M:%S")
dt_end = datetime.datetime.strptime(value['end'], "%Y-%m-%d %H:%M:%S")
if not time_keeper['start']:
time_keeper['start'] = dt_start
if dt_start <= time_keeper['start']:
time_keeper['start'] = dt_start
if not time_keeper['end']:
time_keeper['end'] = dt_end
if dt_end >= time_keeper['end']:
time_keeper['end'] = dt_end
event_dict['date_display'] = 'day'
ts = int(datetime.datetime.strptime(value['start'], "%Y-%m-%d %H:%M:%S").strftime("%s"))
importance = translate_time(ts)
#importance = random.randrange(1, 100)
event_dict['importance'] = importance
event_dict['high_threshold'] = int(importance) + 5
importance_keeper.append(int(importance))
if protocol not in protocols_found:
protocols_found.append(protocol)
event_dict['icon'] = ICONS[protocol]
events.append(event_dict)
count += 1
response_dict['events'] = events
# calculate the middle of the time
mid_point = time_keeper['start'] + ((time_keeper['end'] - time_keeper['start']) / 2)
response_dict['focus_date'] = mid_point.isoformat(sep=" ")
# calculate initial zoom
response_dict['initial_zoom'] = repr(int((importance_keeper[0]+importance_keeper[-1])/2))
for proto in protocols_found:
tmp = dict()
tmp['title'] = repr(proto)
tmp['icon'] = ICONS[proto]
legend.append(tmp)
response_dict['legend'] = legend
result.append(response_dict)
json_data = json.dumps(result)
json_dir = os.path.join(settings.PROJECT_ROOT, "json_files")
json_file = tempfile.NamedTemporaryFile(mode="w", dir=json_dir, delete=False)
file_name = os.path.basename(json_file.name)
# save the json data to the temporary file
json_file.write(json_data)
json_file.close()
context['json_file_url'] = os.path.join(settings.ALTERNATE_BASE_URL, "json_media", file_name)
context['icon_folder'] = os.path.join(settings.ALTERNATE_BASE_URL, "/site_media/jquery_widget/js/timeglider/icons/")
context['pcap_operation'] = "file_summary"
context['summary_li'] = ["summary", "file_summary"]
# get the summary query infos
flow = Flow.objects.get(hash_value=hash_value)
context['flow'] = flow
flow_details = FlowDetails.objects.filter(parent_hash_value=hash_value)
flow_details_dict = dict()
f_d = dict()
for flow_detail in flow_details:
if not flow_details_dict.has_key(flow_detail.protocol):
flow_details_dict[flow_detail.protocol] = dict()
f_d = flow_details_dict[flow_detail.protocol]
f_d['count'] = 1
f_d['timestamps'] = [flow_detail.timestamp]
else:
f_d['count'] += 1
f_d['timestamps'].append(flow_detail.timestamp)
for key, value in flow_details_dict.items():
ts = flow_details_dict[key]['timestamps']
ts.sort()
flow_details_dict[key]['start'] = ts[0]
flow_details_dict[key]['end'] = ts[-1]
context['flow_details'] = flow_details_dict
context['ALTERNATE_BASE_URL'] = settings.ALTERNATE_BASE_URL
context['select_update_li'] = ["file_details", "file_summary"]
return render_to_response("pcap/file_summary.html",
context_instance=RequestContext(request, context))
except Exception, ex:
log.message(ex)
raise Http404
def visualize(request, flow_pcap_md5, protocol, type="size"):
if type == "size":
# to get this work, runserver should be run as bin/django runserver 127.0.0.0:8001 and another instance should be run as
# bin/django runserver
log = Logger("Visualize:", "DEBUG")
context = {
'page_title': 'Packet Sizes',
}
#user_id = request.user.id will use them is user is logged_ib
url = "".join([settings.BASE_URL, "/api/rest/protocol_size_by_hash/?format=json&parent_hash_value=", flow_pcap_md5, "&protocol=", protocol])
log.message("URL: %s" % (url))
req = urllib2.Request(url, None)
opener = urllib2.build_opener()
f = None
try:
f = opener.open(req)
json_response = json.load(f)
json_data = json.dumps(json_response)
context['children'] = json_response['children']
context['flow_details'] = json_response
context['pcap_operation'] = "summary-size"
json_dir = os.path.join(settings.PROJECT_ROOT, "json_files")
json_file = tempfile.NamedTemporaryFile(mode="w", dir=json_dir, delete=False)
file_name = os.path.basename(json_file.name)
# save the json data to the temporary file
json_file.write(json_data)
json_file.close()
context['json_file_url'] = os.path.join(settings.ALTERNATE_BASE_URL, "json_media", file_name)
context['measure'] = 'size'
return render_to_response("pcap/summary-size.html",
context_instance=RequestContext(request, context))
except:
# return html template
pass
else:
# to get this work, runserver should be run as bin/django runserver 127.0.0.0:8001 and another instance should be run as
# bin/django runserver
log = Logger("Visualize:", "DEBUG")
context = {
'page_title': 'Packet counts of the uploaded pcaps',
}
user_id = request.user.id
url = "".join([settings.BASE_URL, "/api/rest/protocol_count_by_hash/?format=json&parent_hash_value=", flow_pcap_md5, "&protocol=", protocol], )
log.message("URL: %s" % (url))
req = urllib2.Request(url, None)
opener = urllib2.build_opener()
f = None
try:
f = opener.open(req)
json_response = json.load(f)
json_data = json.dumps(json_response)
context['children'] = json_response['children']
context['flow_details'] = json_response
context['pcap_operation'] = "summary-size"
json_dir = os.path.join(settings.PROJECT_ROOT, "json_files")
json_file = tempfile.NamedTemporaryFile(mode="w", dir=json_dir, delete=False)
file_name = os.path.basename(json_file.name)
# save the json data to the temporary file
json_file.write(json_data)
json_file.close()
context['json_file_url'] = os.path.join(settings.ALTERNATE_BASE_URL, "json_media", file_name)
return render_to_response("pcap/summary-size.html",
context_instance=RequestContext(request, context))
except Exception, ex:
raise Http404
def upload(request):
log = Logger("Upload form", "DEBUG")
context = {
'page_title': 'Upload your pcap file here',
'upload_status': False,
'message': request.session.get('message', False)
}
if request.method == "POST":
form = UploadPcapForm(request.POST, request.FILES)
if form.is_valid():
user_id = request.user.id
context['form'] = form
file_handler = FileHandler()
file_handler.create_dir()
mem_file = request.FILES['pcap_file']
log.message("file: %s" % mem_file.name)
file_handler.save_file(mem_file)
context['upload_status'] = True
#save the file name to the db
pcap_name = mem_file.name
upload_path = file_handler.upload_dir
# evey pcap file is saved as a flow container, there may or may not be flows, the pcaps colon will give the flow pcaps
hash_handler = HashHandler()
hash_value = hash_handler.get_hash(os.path.join(upload_path, pcap_name))
request.session['uploaded_hash'] = hash_value
request.session['uploaded_file_name'] = pcap_name
# send the file to the defined protocol handler so that it can detect
protocol_handler = settings.PROTOCOL_HANDLER
package = "ovizart.modules.traffic.detector"
module_name = ".".join([package, protocol_handler])
# from ovizart.modules.traffic.detector.x import handler as imported_module
traffic_detector_module = getattr(__import__(module_name, fromlist=["handler"]), "handler")
traffic_detector_handler = traffic_detector_module.Handler()
traffic_detector_handler.create_reassemble_information(file_handler.file_path, upload_path)
output = traffic_detector_handler.detect_proto(file_handler.file_path, upload_path)
if output == False:
request.session['message'] = "Error occured. Please try again."
return redirect('/pcap/upload')
file_type = get_file_type(file_handler.file_path)
file_size = get_file_size(file_handler.file_path)
flow_file, created = Flow.objects.get_or_create(user_id=user_id, hash_value=hash_value,file_name=pcap_name,
path=upload_path, upload_time=datetime.datetime.now(),
file_type=file_type, file_size=file_size)
if "tcp" in output:
log.message("protocol detected: %s" % "TCP")
# run tcp flow extractor
p_read_handler = PcapHandler()
p_read_handler.open_file(file_handler.file_path)
p_read_handler.open_pcap()
f_handler = FlowHandler(p_read_handler)
flow, direction = f_handler.get_tcp_flows()
p_write_handler = PcapHandler()
files = f_handler.save_flow(flow, p_write_handler, save_path=upload_path)
# save the flow pcap names to the mongo db
pcap_list = map(lambda x: Pcap.objects.create(hash_value=hash_handler.get_hash(os.path.join(upload_path, x)), file_name=x, path=upload_path), files.values()[0])
if flow_file.pcaps:
pre_li = flow_file.pcaps
pre_li.extend(pcap_list)
flow_file.pcaps = pre_li
else:
flow_file.pcaps = pcap_list
flow_file.save()
p_read_handler.close_file()
p_write_handler.close_file()
# now i should hook a protocol detector
# before that i should detect the application level protocol
for f in files.values()[0]:
packets = []
# better to save tcp level information to db here
full_path = os.path.join(upload_path, f)
p_read_handler.open_file(full_path)
p_read_handler.open_pcap()
pcap = p_read_handler.get_pcap()
# the list that will keep the tcp part of the packet
tcp_list = []
for ts, buf in pcap:
tcp_handler = TcpHandler()
tcp = tcp_handler.read_tcp(ts, buf)
# this list will be used at the layers above tcp
if tcp:
tcp_list.append((tcp, tcp_handler.ident))
else: continue
tcp_data = u"."
if tcp_handler.data:
tcp_data = tcp_handler.data
# some requests include hexadecimal info, most probably some binary info that can not be
# converted to the utf8, for now i better remove them, #TODO should handle them, though
# try with 4, tcp.data has binary request
# def get_tcp(n):
# count = 1
# f = file("milliyet.pcap", "rb")
# reader = dpkt.pcap.Reader(f)
# for ts, buf in reader:
# if count == n:
# f.close()
# return buf
# count += 1
data_li = tcp_data.split("\r\n")
tmp = []
for data in data_li:
try:
data.encode("utf-8")
tmp.append(data)
except:
tmp.append("data that can not be encoded to utf-8")
tcp_data = " \n".join(tmp)
packet = PacketDetails.objects.create(ident=tcp_handler.ident, flow_hash=hash_value, timestamp=tcp_handler.timestamp,
length=tcp_handler.length, protocol=tcp_handler.proto,
src_ip=tcp_handler.src_ip,
dst_ip=tcp_handler.dst_ip, sport=tcp_handler.sport,
dport=tcp_handler.dport, data=str(tcp_data))
packets.append(packet)
# get the pcap object
p = Pcap.objects.get(hash_value=hash_handler.get_hash(os.path.join(upload_path, f)))
log.message("pcap for packet update detected: %s" % p)
# update its packets
p.packets = list(packets) # converting a queryset to list
p.save()
p_read_handler.close_file()
if "udp" in output:
log.message("protocol detected: %s" % "UDP")
p_read_handler = PcapHandler()
file_path = os.path.join(upload_path, pcap_name)
p_read_handler.open_file(file_path)
p_read_handler.open_pcap()
udp_handler = UDPHandler()
pcap = Pcap.objects.create(hash_value=hash_handler.get_hash(os.path.join(upload_path, pcap_name)), file_name=pcap_name, path=upload_path)
pcap_list = list([pcap])
if flow_file.pcaps:
pre_li = flow_file.pcaps
pre_li.extend(pcap_list)
flow_file.pcaps = pre_li
else:
flow_file.pcaps = pcap_list
flow_file.save()
packets = []
for ts, buf in p_read_handler.get_reader():
udp = udp_handler.read_udp(ts, buf)
if udp:
udp_data = u"."
if udp_handler.data:
udp_data = udp_handler.data
try:
udp_data = udp_data.encode("utf-8")
except:
udp_data = "data that can not be encoded to utf-8"
packet = PacketDetails.objects.create(ident=udp_handler.ident, flow_hash=hash_value, timestamp=udp_handler.timestamp,
length = udp_handler.length,
protocol=udp_handler.proto, src_ip=udp_handler.src_ip,
dst_ip=udp_handler.dst_ip, sport=udp_handler.sport,
dport=udp_handler.dport, data=str(udp_data))
packets.append(packet)
# get the pcap object
p = Pcap.objects.get(hash_value=hash_handler.get_hash(os.path.join(upload_path, pcap_name)))
# update its packets
p.packets = list(packets) # converting a queryset to list
p.save()
p_read_handler.close_file()
# starting the bro related issues for the reassembled data
output = traffic_detector_handler.detect_appproto(file_handler.file_path, upload_path)
log.message("protocol detected: %s" % output)
if output and "http" in output:
log.message("protocol detected: %s" % "HTTP")
# save the reassembled http session IPs to FlowDetails
# this part is checking the http handler module name and importing the handler
http_protocol_handler = settings.HTTP_HANDLER
package = "ovizart.modules.traffic.parser.tcp"
module_name = ".".join([package, http_protocol_handler])
# from ovizart.modules.traffic.parser.tcp.x import handler as imported_module
http_handler_module = getattr(__import__(module_name, fromlist=["handler"]), "handler")
http_handler = http_handler_module.Handler()
# define a get_flow_ips function for the custom handler if required
# TODO: save the timestamps of the flows
flow_ips = http_handler.get_flow_ips(path=upload_path)
flow_detail_li = []
for detail in flow_ips:
flow_detail, create = FlowDetails.objects.get_or_create(parent_hash_value=request.session['uploaded_hash'], user_id=user_id, src_ip=detail[0], sport=int(detail[1]), dst_ip=detail[2], dport=int(detail[3]), protocol="http", timestamp = detail[4])
flow_detail_li.append(flow_detail)
if flow_file.details:
pre_li = flow_file.details
pre_li.extend(flow_detail_li)
flow_file.details = pre_li
else:
flow_file.details = flow_detail_li
flow_file.save()
# then call functions that will save request and responses that will parse dat files, save the headers and files
#http_handler.save_request(path=upload_path, hash_value=request.session['uploaded_hash'])
#http_handler.save_response(path=upload_path, hash_value=request.session['uploaded_hash'])
http_handler.save_request_response(path=upload_path, hash_value=request.session['uploaded_hash'])
# dns realted issues starts here
if output and "dns" in output:
log.message("protocol detected: %s" % "DNS")
dns_protocol_handler = settings.DNS_HANDLER
package = "ovizart.modules.traffic.parser.udp"
module_name = ".".join([package, dns_protocol_handler])
# from ovizart.modules.traffic.parser.udp.x import handler as imported_module
dns_handler_module = getattr(__import__(module_name, fromlist=["handler"]), "handler")
dns_handler = dns_handler_module.Handler()
# define a get_flow_ips function for the custom handler if required
flow_ips = dns_handler.get_flow_ips(path=upload_path, file_name=request.session['uploaded_file_name'])
flow_detail_li = []
for detail in flow_ips:
flow_detail, create = FlowDetails.objects.get_or_create(parent_hash_value=request.session['uploaded_hash'], user_id=user_id, src_ip=detail[0], sport=int(detail[1]), dst_ip=detail[2], dport=int(detail[3]), protocol="dns", timestamp = detail[4])
flow_detail_li.append(flow_detail)
if flow_file.details:
pre_li = flow_file.details
pre_li.extend(flow_detail_li)
flow_file.details = pre_li
else:
flow_file.details = flow_detail_li
flow_file.save()
dns_handler.save_request_response()
if output and "smtp" in output:
log.message("protocol detected: %s" % "SMTP")
smtp_protocol_handler = settings.SMTP_HANDLER
package = "ovizart.modules.traffic.parser.tcp"
module_name = ".".join([package, smtp_protocol_handler])
# from ovizart.modules.traffic.parser.tcp.x import handler as imported_module
smtp_handler_module = getattr(__import__(module_name, fromlist=["handler"]), "handler")
smtp_handler = smtp_handler_module.Handler()
# define a get_flow_ips function for the custom handler if required
smtp_handler.set_flow(flow_file) # i need this, to get the timestamp from a packet belongs to the flow
flow_ips = smtp_handler.get_flow_ips(path=upload_path, file_name=request.session['uploaded_file_name'])
flow_detail_li = []
for detail in flow_ips:
flow_detail, create = FlowDetails.objects.get_or_create(parent_hash_value=request.session['uploaded_hash'], user_id=user_id, src_ip=detail[0], sport=int(detail[1]), dst_ip=detail[2], dport=int(detail[3]), protocol="smtp", timestamp = detail[4])
flow_detail_li.append(flow_detail)
if flow_file.details:
pre_li = flow_file.details
pre_li.extend(flow_detail_li)
flow_file.details = pre_li
else:
flow_file.details = flow_detail_li
flow_file.save()
smtp_handler.save_request_response(upload_path=upload_path)
else:
log.message("protocol detected: %s" % "Unknown")
unknown_protocol_handler = settings.UNKNOWN_HANDLER
package = "ovizart.modules.traffic.parser"
module_name = ".".join([package, unknown_protocol_handler])
unknown_handler_module = getattr(__import__(module_name, fromlist=["handler"]), "handler")
unknown_handler = unknown_handler_module.Handler()
flow_ips = unknown_handler.get_flow_ips(path=upload_path, file_name=request.session['uploaded_file_name'], parent_hash_value=request.session['uploaded_hash'], user_id=user_id)
flow_detail_li = []
for detail in flow_ips:
flow_detail, create = FlowDetails.objects.get_or_create(parent_hash_value=request.session['uploaded_hash'], user_id=user_id, src_ip=detail[0], sport=int(detail[1]), dst_ip=detail[2], dport=int(detail[3]), protocol="unknown", timestamp = detail[4])
if created:
flow_detail_li.append(flow_detail)
if flow_file.details:
pre_li = flow_file.details
pre_li.extend(flow_detail_li)
flow_file.details = pre_li
else:
flow_file.details = flow_detail_li
flow_file.save()
else:
form = UploadPcapForm()
context['form'] = form
request.session['message'] = False
return render_to_response("pcap/upload.html",
context_instance=RequestContext(request, context))
def __init__(self, handler, debug_mode="DEBUG"):
self.pcap = handler.get_pcap()
self.pcap_handler = handler
self._logger = Logger(log_name="Flow Handler", log_mode=debug_mode)
self._logger.message("Flow Handler initialized")
def __init__(self):
self.log = Logger("DNS Protocol Handler", "DEBUG")
self.log.message("DNS protocol handler called")
self.dns_li = []
self.flow_li = []
def __init__(self):
super(Handler, self).__init__()
self.log = Logger("HTTP Protocol Handler", "DEBUG")
self.log.message("HTTP protocol handler called")
def __init__(self):
self.file_path = None
self.file_name = None
self.stream = None
self.data = None
self.log = Logger("File Handler", "DEBUG")
def __init__(self, debug_mode="DEBUG"):
self._logger = Logger(log_name="Pcap Handler", log_mode=debug_mode)
self._logger.message("Pcap Handler initialized")
self._pcap = None
self._filter_type = None
self._file_pointer = None
