def inmem_capture():
return pyshark.InMemCapture()
async def greet(packets):
for g in packets:
c = pyshark.InMemCapture()
p = c.parse_packet(g)
print(p)
c.close()
def loop():
imc = pyshark.InMemCapture(linktype=228,
custom_parameters={"-J": "lte_rrc"})
source = os.open(_pipe, os.O_RDONLY | os.O_NONBLOCK)
poll = select.poll()
poll.register(source, select.POLLIN)
_ip_base = "172.17.0."
_ip_pool = iter(range(5, 128))
handover_start = False
handover_complete = False
cell_id = None
test_mode = os.getenv('TEST_SETUP')
if test_mode == None or not (test_mode
in ['mptcp', 'tcpwo', 'tcp', 'sip', 'sipwo']):
print("TEST_SETUP env variable not set")
return
else:
print('Test mode: {}'.format(test_mode))
while True:
if (source, select.POLLIN) in poll.poll(2000): # 2s
ts, pkt = get_packet(source)
else:
continue
pkt = imc.parse_packet(pkt)
# print("timestamp:", ts, pkt, dir(pkt.lte_rrc))
# cell id
new_cell_id = None
try:
new_cell_id = pkt.lte_rrc.lte_rrc_physcellid
except AttributeError:
pass
if new_cell_id != None:
cell_id = new_cell_id
# Check handover completes
if handover_start:
handover_complete = False
try:
handover_complete = pkt.lte_rrc.lte_rrc_rrcconnectionreconfigurationcomplete_element == 'rrcConnectionReconfigurationComplete'
except AttributeError:
pass
# Record
if handover_complete:
print("***** Handover completes! *****")
try:
ip = _ip_base + str(next(_ip_pool))
except StopIteration:
_ip_pool = iter(range(5, 128))
ip = _ip_base + str(next(_ip_pool))
if not (test_mode in ['tcpwo', 'sipwo']):
#ho.do(new_ip=ip, lat=32.072 * 1e-3, name="uec_new2")
ho.do(new_ip=ip, lat=96.0 * 1e-3, name="uec_new2")
handover_start = False
# handover start
try:
handover_start = pkt.lte_rrc.lte_rrc_mobilitycontrolinfo_element == 'mobilityControlInfo'
if handover_start:
print("***** Handover starts! *****")
except AttributeError:
pass
# TBD which timestamp
event = 'RRC'
if handover_complete:
event = 'HO_END'
if handover_start:
event = 'HO_START'
print(time.time(), event, cell_id)
# Reset handover completes
if handover_complete:
handover_complete = False
cap = pyshark.FileCapture('../challenge/pingpong.pcap')
stream_count = {}
i = 0
for pkt in cap:
data = binascii.unhexlify(pkt['ICMP'].data)
if i == 5:
challenge = data[5:]
if i == 6:
target_digest = data[5:]
if len(data) > 50:
c = pyshark.InMemCapture()
offset = 5 # magic word
ethernet_header = b'\x00' * 12 + b'\x08' + b'\x00'
pkt_inner = c.parse_packet(ethernet_header + data[offset:])
print(pkt_inner)
if 'ICMP' in pkt_inner:
print(binascii.unhexlify(pkt_inner['ICMP'].data))
print('-' * 100)
i += 1
password = crack_password(challenge, target_digest)
print('Password was "{}"'.format(password))