def test__update_fivetuplebi_noupdate():
afg = AnubisFG(bidirectional=True)
capture = rdpcap('tests/data/test_100_rows.pcap')
# First packet is a STP packet that should not be read.
packet = capture[0]
afg._update_fivetuplebi(packet)
assert afg.memory_fivetup == dict()
with pytest.raises(IndexError, match='Packet does not have an IP layer'):
afg._update_fivetuplebi(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__update_fivetuplebi_update():
afg = AnubisFG(bidirectional=True)
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
key = (ip_src, src_port, ip_dst, dst_port, protocol)
length = 74
hdr_len = 20
ttl = 63
fwd_pkt_flag_counter = [0] * 8
# SYN flag
fwd_pkt_flag_counter[1] = 1
bck_pkt_flag_counter = [0] * 8
# Creating
afg._update_fivetuplebi(packet)
expected = {
'fst_timestamp': timestamp,
'lst_timestamp': timestamp,
'fwd_pkt_flag_counter': fwd_pkt_flag_counter,
'fwd_tot_pkt': 1,
'fwd_tot_header_len': hdr_len,
'fwd_tot_packet_len': length,
'fwd_max_pkt_len': length,
'fwd_min_pkt_len': length,
'fwd_tot_ttl': ttl,
'bck_pkt_flag_counter': bck_pkt_flag_counter,
'bck_tot_pkt': 0,
'bck_tot_header_len': 0,
'bck_tot_packet_len': 0,
'bck_max_pkt_len': 0,
'bck_min_pkt_len': 0,
'bck_tot_ttl': 0
}
assert len(afg.memory_fivetup) == 1
assert afg.memory_fivetup[key].__dict__ == expected
# Updating Forward
# 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
fwd_pkt_flag_counter[1] += 1
afg._update_fivetuplebi(packet)
expected = {
'fst_timestamp': timestamp,
'lst_timestamp': new_timestamp,
'fwd_pkt_flag_counter': fwd_pkt_flag_counter,
'fwd_tot_pkt': 2,
'fwd_tot_header_len': hdr_len * 2,
'fwd_tot_packet_len': length * 2,
'fwd_max_pkt_len': length,
'fwd_min_pkt_len': length,
'fwd_tot_ttl': ttl * 2,
'bck_pkt_flag_counter': bck_pkt_flag_counter,
'bck_tot_pkt': 0,
'bck_tot_header_len': 0,
'bck_tot_packet_len': 0,
'bck_max_pkt_len': 0,
'bck_min_pkt_len': 0,
'bck_tot_ttl': 0
}
assert len(afg.memory_fivetup) == 1
assert afg.memory_fivetup[key].__dict__ == expected
# Fourth packet is a SYN ACK response TCP packet with inverted IPs and
# Ports
packet = capture[3]
new_timestamp = datetime(2018, 12, 1, 13, 17, 11, 183932)
# SYN flag
bck_pkt_flag_counter[1] += 1
# ACK flag
bck_pkt_flag_counter[4] += 1
afg._update_fivetuplebi(packet)
expected = {
'fst_timestamp': timestamp,
'lst_timestamp': new_timestamp,
'fwd_pkt_flag_counter': fwd_pkt_flag_counter,
'fwd_tot_pkt': 2,
'fwd_tot_header_len': hdr_len * 2,
'fwd_tot_packet_len': length * 2,
'fwd_max_pkt_len': length,
'fwd_min_pkt_len': length,
'fwd_tot_ttl': ttl * 2,
'bck_pkt_flag_counter': bck_pkt_flag_counter,
'bck_tot_pkt': 1,
'bck_tot_header_len': hdr_len,
'bck_tot_packet_len': length,
'bck_max_pkt_len': length,
'bck_min_pkt_len': length,
'bck_tot_ttl': 64
}
assert len(afg.memory_fivetup) == 1
assert afg.memory_fivetup[key].__dict__ == expected
def test__generate_features_fivetuplebi():
'''
Feature list:
Forward
fwd_qt_pkt
fwd_qt_fin_fl
fwd_qt_syn_fl
fwd_qt_res_fl
fwd_qt_psh_fl
fwd_qt_ack_fl
fwd_qt_urg_fl
fwd_qt_ecn_fl
fwd_qt_cwr_fl
fwd_avg_hdr_len
fwd_avg_pkt_len
fwd_max_pkt_len
fwd_min_pkt_len
fwd_frq_pkt
fwd_avg_ttl
Backward
bck_qt_pkt
bck_qt_fin_fl
bck_qt_syn_fl
bck_qt_res_fl
bck_qt_psh_fl
bck_qt_ack_fl
bck_qt_urg_fl
bck_qt_ecn_fl
bck_qt_cwr_fl
bck_avg_hdr_len
bck_avg_pkt_len
bck_max_pkt_len
bck_min_pkt_len
bck_frq_pkt
bck_avg_ttl
Non-directional
tm_dur_s
'''
n_features = 31
ip_src = '172.16.0.5'
ip_dst = '192.168.50.1'
src_port = 60675
dst_port = 80
protocol = 6
key = (ip_src, src_port, ip_dst, dst_port, protocol)
afg = AnubisFG(bidirectional=True)
# Tuple that is not on the memory.
empty = afg._generate_features_fivetuplebi(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_fivetuplebi(packet)
expected = [
1, # fwd_qt_pkt
0, # fwd_qt_fin_fl
1, # fwd_qt_syn_fl
0, # fwd_qt_res_fl
0, # fwd_qt_psh_fl
0, # fwd_qt_ack_fl
0, # fwd_qt_urg_fl
0, # fwd_qt_ecn_fl
0, # fwd_qt_cwr_fl
20, # fwd_avg_hdr_len
74, # fwd_avg_pkt_len
74, # fwd_max_pkt_len
74, # fwd_min_pkt_len
1, # fwd_frq_pkt
63, # fwd_avg_ttl
0, # bck_qt_pkt
0, # bck_qt_fin_fl
0, # bck_qt_syn_fl
0, # bck_qt_res_fl
0, # bck_qt_psh_fl
0, # bck_qt_ack_fl
0, # bck_qt_urg_fl
0, # bck_qt_ecn_fl
0, # bck_qt_cwr_fl
0, # bck_avg_hdr_len
0, # bck_avg_pkt_len
0, # bck_max_pkt_len
0, # bck_min_pkt_len
0, # bck_frq_pkt
0, # bck_avg_ttl
0, # tm_dur_s
]
ftrs = afg._generate_features_fivetuplebi(key)
assert ftrs == expected
# Inverted
expected = [
0, # bck_qt_pkt
0, # bck_qt_fin_fl
0, # bck_qt_syn_fl
0, # bck_qt_res_fl
0, # bck_qt_psh_fl
0, # bck_qt_ack_fl
0, # bck_qt_urg_fl
0, # bck_qt_ecn_fl
0, # bck_qt_cwr_fl
0, # bck_avg_hdr_len
0, # bck_avg_pkt_len
0, # bck_max_pkt_len
0, # bck_min_pkt_len
0, # bck_frq_pkt
0, # bck_avg_ttl
1, # fwd_qt_pkt
0, # fwd_qt_fin_fl
1, # fwd_qt_syn_fl
0, # fwd_qt_res_fl
0, # fwd_qt_psh_fl
0, # fwd_qt_ack_fl
0, # fwd_qt_urg_fl
0, # fwd_qt_ecn_fl
0, # fwd_qt_cwr_fl
20, # fwd_avg_hdr_len
74, # fwd_avg_pkt_len
74, # fwd_max_pkt_len
74, # fwd_min_pkt_len
1, # fwd_frq_pkt
63, # fwd_avg_ttl
0, # tm_dur_s
]
inv_key = (key[2], key[3], key[0], key[1], key[4])
ftrs = afg._generate_features_fivetuplebi(inv_key)
assert ftrs == expected
# Duration > 0
# Updating
# Third packet is another SYN TCP packet with same IPs and Ports
packet = capture[2]
afg._update_fivetuplebi(packet)
new_timestamp = datetime(2018, 12, 1, 13, 17, 11, 183813)
dur = (new_timestamp - timestamp).total_seconds()
expected = [
2, # fwd_qt_pkt
0, # fwd_qt_fin_fl
2, # fwd_qt_syn_fl
0, # fwd_qt_res_fl
0, # fwd_qt_psh_fl
0, # fwd_qt_ack_fl
0, # fwd_qt_urg_fl
0, # fwd_qt_ecn_fl
0, # fwd_qt_cwr_fl
20, # fwd_avg_hdr_len
74, # fwd_avg_pkt_len
74, # fwd_max_pkt_len
74, # fwd_min_pkt_len
2 / dur, # fwd_frq_pkt
63, # fwd_avg_ttl
0, # bck_qt_pkt
0, # bck_qt_fin_fl
0, # bck_qt_syn_fl
0, # bck_qt_res_fl
0, # bck_qt_psh_fl
0, # bck_qt_ack_fl
0, # bck_qt_urg_fl
0, # bck_qt_ecn_fl
0, # bck_qt_cwr_fl
0, # bck_avg_hdr_len
0, # bck_avg_pkt_len
0, # bck_max_pkt_len
0, # bck_min_pkt_len
0 / dur, # bck_frq_pkt
0, # bck_avg_ttl
dur, # tm_dur_s
]
ftrs = afg._generate_features_fivetuplebi(key)
assert ftrs == expected
# Using now datetime.
new_timestamp = datetime.now()
dur = (new_timestamp - timestamp).total_seconds()
expected = [
2, # fwd_qt_pkt
0, # fwd_qt_fin_fl
2, # fwd_qt_syn_fl
0, # fwd_qt_res_fl
0, # fwd_qt_psh_fl
0, # fwd_qt_ack_fl
0, # fwd_qt_urg_fl
0, # fwd_qt_ecn_fl
0, # fwd_qt_cwr_fl
20, # fwd_avg_hdr_len
74, # fwd_avg_pkt_len
74, # fwd_max_pkt_len
74, # fwd_min_pkt_len
2 / dur, # fwd_frq_pkt
63, # fwd_avg_ttl
0, # bck_qt_pkt
0, # bck_qt_fin_fl
0, # bck_qt_syn_fl
0, # bck_qt_res_fl
0, # bck_qt_psh_fl
0, # bck_qt_ack_fl
0, # bck_qt_urg_fl
0, # bck_qt_ecn_fl
0, # bck_qt_cwr_fl
0, # bck_avg_hdr_len
0, # bck_avg_pkt_len
0, # bck_max_pkt_len
0, # bck_min_pkt_len
0 / dur, # bck_frq_pkt
0, # bck_avg_ttl
dur, # tm_dur_s
]
ftrs = afg._generate_features_fivetuplebi(key, now=True)
assert np.isclose(ftrs, expected).all()
# Backward features
# Updating
# Fourth packet is a SYN ACK response TCP packet with inverted IPs and
packet = capture[3]
afg._update_fivetuplebi(packet)
new_timestamp = datetime(2018, 12, 1, 13, 17, 11, 183932)
dur = (new_timestamp - timestamp).total_seconds()
expected = [
2, # fwd_qt_pkt
0, # fwd_qt_fin_fl
2, # fwd_qt_syn_fl
0, # fwd_qt_res_fl
0, # fwd_qt_psh_fl
0, # fwd_qt_ack_fl
0, # fwd_qt_urg_fl
0, # fwd_qt_ecn_fl
0, # fwd_qt_cwr_fl
20, # fwd_avg_hdr_len
74, # fwd_avg_pkt_len
74, # fwd_max_pkt_len
74, # fwd_min_pkt_len
2 / dur, # fwd_frq_pkt
63, # fwd_avg_ttl
1, # bck_qt_pkt
0, # bck_qt_fin_fl
1, # bck_qt_syn_fl
0, # bck_qt_res_fl
0, # bck_qt_psh_fl
1, # bck_qt_ack_fl
0, # bck_qt_urg_fl
0, # bck_qt_ecn_fl
0, # bck_qt_cwr_fl
20, # bck_avg_hdr_len
74, # bck_avg_pkt_len
74, # bck_max_pkt_len
74, # bck_min_pkt_len
1 / dur, # bck_frq_pkt
64, # bck_avg_ttl
dur, # tm_dur_s
]
ftrs = afg._generate_features_fivetuplebi(key)
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'
src_port_1 = 80
dst_port_1 = 80
protocol_1 = 6
key_1 = (ip_src_1, src_port_1, ip_dst_1, dst_port_1, protocol_1)
t5_1 = FiveTupleBidirectionalNode()
memory_fivetup_1 = {key_1: t5_1}
afg_1 = AnubisFG(memory_fivetup=memory_fivetup_1)
ftrs = afg_1._generate_features_fivetuplebi(key_1)
assert ftrs == [0] * n_features