def test__update_twotupleuni_update():
afg = AnubisFG(bidirectional=False)
capture = rdpcap('tests/data/test_100_rows.pcap')
# Second packet is a SYN TCP packet.
packet = capture[1]
ip_src = '172.16.0.5'
ip_dst = '192.168.50.1'
timestamp = datetime(2018, 12, 1, 13, 17, 11, 183810)
src_port = 60675
dst_port = 80
protocol = 6
hdr_len = 20
length = 74
ttl = 63
pkt_flag_counter = [0] * 8
# SYN flag
pkt_flag_counter[1] = 1
# Creating
afg._update_twotupleuni(packet)
expected = {
'fst_timestamp': timestamp,
'lst_timestamp': timestamp,
'set_src_ports': {src_port},
'set_dst_ports': {dst_port},
'pkt_flag_counter': pkt_flag_counter,
'pkt_protocol_counter': {
protocol: 1
},
'tot_header_len': hdr_len,
'tot_packet_len': length,
'tot_ttl': ttl
}
assert len(afg.memory_twotup) == 1
assert afg.memory_twotup[(ip_src, ip_dst)].__dict__ == expected
# Updating
# Third packet is another SYN TCP packet with same IPs and Ports
packet = capture[2]
new_timestamp = datetime(2018, 12, 1, 13, 17, 11, 183813)
# SYN flag
pkt_flag_counter[1] += 1
afg._update_twotupleuni(packet)
expected = {
'fst_timestamp': timestamp,
'lst_timestamp': new_timestamp,
'set_src_ports': {src_port},
'set_dst_ports': {dst_port},
'pkt_flag_counter': pkt_flag_counter,
'pkt_protocol_counter': {
protocol: 2
},
'tot_header_len': hdr_len * 2,
'tot_packet_len': length * 2,
'tot_ttl': ttl * 2
}
assert len(afg.memory_twotup) == 1
assert afg.memory_twotup[(ip_src, ip_dst)].__dict__ == expected
def test__update_twotupleuni_noupdate():
afg = AnubisFG(bidirectional=False)
capture = rdpcap('tests/data/test_100_rows.pcap')
# First packet is a STP packet that should not be read.
packet = capture[0]
afg._update_twotupleuni(packet)
assert afg.memory_twotup == dict()
with pytest.raises(IndexError, match='Packet does not have an IP layer'):
afg._update_twotupleuni(packet, ignore_errors=False)
def test_update():
capture = rdpcap('tests/data/test_100_rows.pcap')
# Will be tested considering all possible sets of attributes.
for bidir in [True, False]:
for onlytwo in [True, False]:
for onlyfive in set([not onlytwo, False]):
# This will be updated by the method update.
afg_1 = AnubisFG(bidirectional=bidir,
only_twotuple=onlytwo,
only_fivetuple=onlyfive)
# This will be updated by the specific method(s) tested above.
afg_2 = AnubisFG(bidirectional=bidir,
only_twotuple=onlytwo,
only_fivetuple=onlyfive)
for i in range(1, 4):
packet = capture[i]
afg_1.update(packet)
assert afg_1.lst_timestamp == datetime.utcfromtimestamp(
packet.time)
if bidir:
if onlytwo:
afg_2._update_twotuplebi(packet)
elif onlyfive:
afg_2._update_fivetuplebi(packet)
else:
afg_2._update_twotuplebi(packet)
afg_2._update_fivetuplebi(packet)
else:
if onlytwo:
afg_2._update_twotupleuni(packet)
elif onlyfive:
afg_2._update_fivetupleuni(packet)
else:
afg_2._update_twotupleuni(packet)
afg_2._update_fivetupleuni(packet)
if afg_1.memory_twotup is None:
assert afg_2.memory_twotup is None
else:
assert afg_1.memory_twotup.keys(
) == afg_2.memory_twotup.keys()
for key in afg_1.memory_twotup.keys():
assert afg_1.memory_twotup[
key].__dict__ == afg_2.memory_twotup[
key].__dict__
if afg_1.memory_fivetup is None:
assert afg_2.memory_fivetup is None
else:
assert afg_1.memory_fivetup.keys(
) == afg_2.memory_fivetup.keys()
for key in afg_1.memory_fivetup.keys():
assert afg_1.memory_fivetup[
key].__dict__ == afg_2.memory_fivetup[
key].__dict__
def test__generate_features_twotupleuni():
'''
Feature list:
qt_pkt
qt_pkt_tcp
qt_pkt_udp
qt_pkt_icmp
qt_pkt_ip
qt_prtcl
qt_src_prt
qt_dst_prt
qt_fin_fl
qt_syn_fl
qt_res_fl
qt_psh_fl
qt_ack_fl
qt_urg_fl
qt_ecn_fl
qt_cwr_fl
avg_hdr_len
avg_pkt_len
frq_pkt
avg_ttl
tm_dur_s
'''
n_features = 21
ip_src = '172.16.0.5'
ip_dst = '192.168.50.1'
key = (ip_src, ip_dst)
afg = AnubisFG(bidirectional=False)
# Tuple that is not on the memory.
empty = afg._generate_features_twotupleuni(key)
assert empty == [0] * n_features
# Duration 0
capture = rdpcap('tests/data/test_100_rows.pcap')
# Second packet is a SYN TCP packet.
packet = capture[1]
timestamp = datetime(2018, 12, 1, 13, 17, 11, 183810)
afg._update_twotupleuni(packet)
expected = [
1, # qt_pkt
1, # qt_pkt_tcp
0, # qt_pkt_udp
0, # qt_pkt_icmp
0, # qt_pkt_ip
1, # qt_prtcl
1, # qt_src_prt
1, # qt_dst_prt
0, # qt_fin_fl
1, # qt_syn_fl
0, # qt_res_fl
0, # qt_psh_fl
0, # qt_ack_fl
0, # qt_urg_fl
0, # qt_ecn_fl
0, # qt_cwr_fl
20, # avg_hdr_len
74, # avg_pkt_len
1, # frq_pkt
63, # avg_ttl
0, # tm_dur_s
]
ftrs = afg._generate_features_twotupleuni(key)
assert ftrs == expected
# Duration > 0
# Updating
# Third packet is another SYN TCP packet with same IPs and Ports
packet = capture[2]
afg._update_twotupleuni(packet)
new_timestamp = datetime(2018, 12, 1, 13, 17, 11, 183813)
dur = (new_timestamp - timestamp).total_seconds()
expected = [
2, # qt_pkt
2, # qt_pkt_tcp
0, # qt_pkt_udp
0, # qt_pkt_icmp
0, # qt_pkt_ip
1, # qt_prtcl
1, # qt_src_prt
1, # qt_dst_prt
0, # qt_fin_fl
2, # qt_syn_fl
0, # qt_res_fl
0, # qt_psh_fl
0, # qt_ack_fl
0, # qt_urg_fl
0, # qt_ecn_fl
0, # qt_cwr_fl
20, # avg_hdr_len
74, # avg_pkt_len
2 / dur, # frq_pkt
63, # avg_ttl
dur, # tm_dur_s
]
ftrs = afg._generate_features_twotupleuni(key)
assert ftrs == expected
# Using now datetime.
new_timestamp = datetime.now()
dur = (new_timestamp - timestamp).total_seconds()
expected = [
2, # qt_pkt
2, # qt_pkt_tcp
0, # qt_pkt_udp
0, # qt_pkt_icmp
0, # qt_pkt_ip
1, # qt_prtcl
1, # qt_src_prt
1, # qt_dst_prt
0, # qt_fin_fl
2, # qt_syn_fl
0, # qt_res_fl
0, # qt_psh_fl
0, # qt_ack_fl
0, # qt_urg_fl
0, # qt_ecn_fl
0, # qt_cwr_fl
20, # avg_hdr_len
74, # avg_pkt_len
2 / dur, # frq_pkt
63, # avg_ttl
dur, # tm_dur_s
]
ftrs = afg._generate_features_twotupleuni(key, now=True)
assert np.isclose(ftrs, expected).all()
# Zero forward packets on existing flow
ip_src_1 = '192.168.0.1'
ip_dst_1 = '192.168.0.2'
key_1 = (ip_src_1, ip_dst_1)
t2_1 = TwoTupleUnidirectionalNode()
memory_twotup_1 = {key_1: t2_1}
afg_1 = AnubisFG(memory_twotup=memory_twotup_1, bidirectional=False)
ftrs = afg_1._generate_features_twotupleuni(key_1)
assert ftrs == [0] * n_features