def test_deny_rule_install(self):
"""
Adds a policy to a subscriber. Verifies that flows are properly
installed in enforcement and enforcement stats.
Assert:
Policy classification flows installed in enforcement
Policy match flows installed in enforcement_stats
"""
fake_controller_setup(self.enforcement_controller,
self.enforcement_stats_controller)
imsi = 'IMSI001010000000014'
sub_ip = '192.16.15.7'
num_pkt_unmatched = 4096
flow_list = [
FlowDescription(match=FlowMatch(
ip_dst=convert_ipv4_str_to_ip_proto('1.1.0.0/24'),
direction=FlowMatch.UPLINK),
action=FlowDescription.DENY)
]
policy = PolicyRule(id='rule1', priority=3, flow_list=flow_list)
self.service_manager.session_rule_version_mapper.update_version(
imsi, convert_ipv4_str_to_ip_proto(sub_ip), 'rule1')
""" Setup subscriber, setup table_isolation to fwd pkts """
sub_context = RyuDirectSubscriberContext(
imsi, sub_ip, self.enforcement_controller, self._main_tbl_num,
self.enforcement_stats_controller).add_dynamic_rule(policy)
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(
sub_context.cfg).build_requests(), self.testing_controller)
pkt_sender = ScapyPacketInjector(self.IFACE)
packet = IPPacketBuilder() \
.set_ip_layer('45.10.0.0/20', sub_ip) \
.set_ether_layer(self.MAC_DEST, "00:00:00:00:00:00") \
.build()
# =========================== Verification ===========================
# Verifies that 1 flow is installed in enforcement and 2 flows are
# installed in enforcement stats, one for uplink and one for downlink.
snapshot_verifier = SnapshotVerifier(self, self.BRIDGE,
self.service_manager)
with isolator, sub_context, snapshot_verifier:
pkt_sender.send(packet)
enf_stat_name = imsi + '|' + self.DEFAULT_DROP_FLOW_NAME + '|' + sub_ip
wait_for_enforcement_stats(self.enforcement_stats_controller,
[enf_stat_name])
stats = get_enforcement_stats(
self.enforcement_stats_controller._report_usage.call_args_list)
self.assertEqual(stats[enf_stat_name].sid, imsi)
self.assertEqual(stats[enf_stat_name].rule_id,
self.DEFAULT_DROP_FLOW_NAME)
self.assertEqual(stats[enf_stat_name].dropped_rx, 0)
self.assertEqual(stats[enf_stat_name].dropped_tx,
num_pkt_unmatched * len(packet))
def test_gre_learn(self):
"""
Test that uplink packet hits the learn rule and a new flow is created
in the scratch table(snapshot is checked)
"""
# Set up subscribers
sub = SubContextConfig('IMSI001010000000013', '192.168.128.74',
self._tbl_num)
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(sub).build_requests(),
self.testing_controller,
)
# Set up packets
pkt_sender = ScapyPacketInjector(self.BRIDGE)
pkt = IPPacketBuilder() \
.set_ip_layer(self.INBOUND_TEST_IP, sub.ip) \
.set_ether_layer(self.MAC_DEST, "01:02:03:04:05:06") \
.build()
with isolator:
pkt_sender.send(pkt)
assert_bridge_snapshot_match(self, self.BRIDGE, self.service_manager)
def test_conntrack(self):
"""
Test that conntrack rules are properly setup
Verifies that 3 new connections are detected (2 tcp, 1 udp)
"""
sub_ip = '145.254.160.237' # extracted from pcap don't change
sub = SubContextConfig(
'IMSI001010000000013',
sub_ip,
default_ambr_config,
self._tbl_num,
)
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(sub).build_requests(),
self.testing_controller,
)
pkt_sender = ScapyPacketInjector(self.BRIDGE)
snapshot_verifier = SnapshotVerifier(
self,
self.BRIDGE,
self.service_manager,
include_stats=False,
)
current_path = \
str(pathlib.Path(__file__).parent.absolute())
with isolator, snapshot_verifier:
pkt_sender.send_pcap(current_path + "/pcaps/http_download.cap")
def test_stray_arp_drop(self):
"""
Verify that an arp that neither UE->UPLINK nor UPLINK->UE is dropped
"""
pkt_sender = ScapyPacketInjector(self.IFACE)
arp_packet = ARPPacketBuilder() \
.set_ether_layer('11:11:11:11:11:1', self.OTHER_MAC) \
.set_arp_layer(self.OTHER_IP) \
.set_arp_hwdst(self.OTHER_MAC) \
.set_arp_src('22:22:22:22:22:22', '1.1.1.1') \
.build()
uplink_args = RyuForwardFlowArgsBuilder(self._tbl_num) \
.set_eth_match(eth_dst='11:11:11:11:11:1', eth_src=self.OTHER_MAC) \
.set_reg_value(DIRECTION_REG, Direction.OUT) \
.build_requests()
isolator = RyuDirectTableIsolator(uplink_args, self.testing_controller)
snapshot_verifier = SnapshotVerifier(
self,
self.BRIDGE,
self.service_manager,
)
with isolator, snapshot_verifier:
pkt_sender.send(arp_packet)
wait_after_send(self.testing_controller)
def test_ue_to_uplink_arp(self):
"""
Verify that a UE->UPLINK arp request is properly matched
"""
pkt_sender = ScapyPacketInjector(self.IFACE)
arp_packet = ARPPacketBuilder() \
.set_ether_layer(self.OTHER_MAC, self.UE_MAC) \
.set_arp_layer(self.OTHER_IP) \
.set_arp_hwdst(self.OTHER_MAC) \
.set_arp_src(self.UE_MAC, self.UE_IP) \
.build()
uplink_args = RyuForwardFlowArgsBuilder(self._tbl_num) \
.set_eth_match(eth_src=self.UE_MAC, eth_dst=self.OTHER_MAC) \
.set_reg_value(DIRECTION_REG, Direction.OUT) \
.build_requests()
isolator = RyuDirectTableIsolator(uplink_args, self.testing_controller)
snapshot_verifier = SnapshotVerifier(
self,
self.BRIDGE,
self.service_manager,
)
with isolator, snapshot_verifier:
pkt_sender.send(arp_packet)
wait_after_send(self.testing_controller)
def test_uplink_to_ue_arp_router_mode(self):
"""
Verify that a UPLINK->UE arp request with IMSI set is properly matched
"""
pkt_sender = ScapyPacketInjector(self.IFACE)
arp_packet = ARPPacketBuilder() \
.set_ether_layer(self.UE_MAC, self.OTHER_MAC) \
.set_arp_layer(self.UE_IP) \
.set_arp_hwdst(self.UE_MAC) \
.set_arp_src(self.OTHER_MAC, self.OTHER_IP) \
.build()
dlink_args = RyuForwardFlowArgsBuilder(self._tbl_num) \
.set_eth_match(eth_dst=self.UE_MAC, eth_src=self.OTHER_MAC) \
.set_reg_value(DIRECTION_REG, Direction.IN) \
.set_reg_value(IMSI_REG, 123) \
.build_requests()
isolator = RyuDirectTableIsolator(dlink_args, self.testing_controller)
snapshot_verifier = SnapshotVerifier(self, self.BRIDGE,
self.service_manager)
with isolator, snapshot_verifier:
pkt_sender.send(arp_packet, count=4)
wait_after_send(self.testing_controller)
clean_to_ip_blocks_list()
def test_invalid_subscriber(self):
"""
Try to apply an invalid policy to a subscriber, should log and error
Assert:
Only 1 flow gets added to the table (drop flow)
"""
fake_controller_setup(self.enforcement_controller)
imsi = 'IMSI000000000000001'
sub_ip = '192.168.128.45'
flow_list = [FlowDescription(
match=FlowMatch(
ip_src=convert_ipv4_str_to_ip_proto('9999.0.0.0/24')),
action=FlowDescription.DENY
)]
policy = PolicyRule(id='invalid', priority=2, flow_list=flow_list)
invalid_sub_context = RyuDirectSubscriberContext(
imsi, sub_ip, self.enforcement_controller,
self._tbl_num).add_dynamic_rule(policy)
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(invalid_sub_context.cfg)
.build_requests(),
self.testing_controller
)
flow_query = FlowQuery(self._tbl_num, self.testing_controller)
num_flows_start = len(flow_query.lookup())
snapshot_verifier = SnapshotVerifier(self, self.BRIDGE,
self.service_manager)
with isolator, invalid_sub_context, snapshot_verifier:
wait_after_send(self.testing_controller)
num_flows_final = len(flow_query.lookup())
self.assertEqual(num_flows_final - num_flows_start, 0)
def test_redirect_policy(self):
"""
Add a redirect policy, verifies that EnforcementStatsController reports
correct stats to sessiond
Assert:
1 Packet is matched and reported
"""
fake_controller_setup(self.enforcement_controller,
self.enforcement_stats_controller)
redirect_ips = ["185.128.101.5", "185.128.121.4"]
self.enforcement_controller._redirect_manager._dns_cache.get(
"about.sha.ddih.org", lambda: redirect_ips, max_age=42)
imsi = 'IMSI010000000088888'
sub_ip = '192.168.128.74'
flow_list = [FlowDescription(match=FlowMatch())]
policy = PolicyRule(id='redir_test',
priority=3,
flow_list=flow_list,
redirect=RedirectInformation(
support=1,
address_type=2,
server_address="http://about.sha.ddih.org/"))
stat_name = imsi + '|redir_test' + '|' + sub_ip
self.service_manager.session_rule_version_mapper.update_version(
imsi, convert_ipv4_str_to_ip_proto(sub_ip), 'redir_test')
""" Setup subscriber, setup table_isolation to fwd pkts """
sub_context = RyuDirectSubscriberContext(
imsi, sub_ip, self.enforcement_controller, self._main_tbl_num,
self.enforcement_stats_controller).add_dynamic_rule(policy)
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(
sub_context.cfg).build_requests(), self.testing_controller)
pkt_sender = ScapyPacketInjector(self.IFACE)
packet = TCPPacketBuilder() \
.set_tcp_layer(42132, 80, 321) \
.set_tcp_flags("S") \
.set_ip_layer('151.42.41.122', sub_ip) \
.set_ether_layer(self.MAC_DEST, "00:00:00:00:00:00") \
.build()
# =========================== Verification ===========================
snapshot_verifier = SnapshotVerifier(self, self.BRIDGE,
self.service_manager)
""" Send packet, wait until pkts are received by ovs and enf stats """
with isolator, sub_context, snapshot_verifier:
self.enforcement_stats_controller._report_usage.reset_mock()
pkt_sender.send(packet)
wait_for_enforcement_stats(self.enforcement_stats_controller,
[stat_name])
""" Send packets, wait until pkts are received by ovs and enf stats """
stats = get_enforcement_stats(
self.enforcement_stats_controller._report_usage.call_args_list)
self.assertEqual(stats[stat_name].sid, imsi)
self.assertEqual(stats[stat_name].rule_id, "redir_test")
self.assertEqual(stats[stat_name].bytes_rx, 0)
self.assertEqual(stats[stat_name].bytes_tx, len(packet))
def test_subscriber_restrict_policy(self):
"""
Add restrict policy to subscriber, send 4096 packets
Assert:
Packets are properly matched with the 'restrict_match' policy
Send /20 (4096) packets, match /16 (256) packets
"""
fake_controller_setup(self.gy_controller)
imsi = 'IMSI010000000088888'
sub_ip = '192.168.128.74'
flow_list1 = [
FlowDescription(match=FlowMatch(
ip_dst=convert_ipv4_str_to_ip_proto('8.8.8.0/24'),
direction=FlowMatch.UPLINK),
action=FlowDescription.PERMIT)
]
policies = [
VersionedPolicy(
rule=PolicyRule(id='restrict_match',
priority=2,
flow_list=flow_list1),
version=1,
)
]
pkts_matched = 256
pkts_sent = 4096
# ============================ Subscriber ============================
sub_context = RyuDirectSubscriberContext(
imsi, sub_ip, self.gy_controller,
self._tbl_num).add_policy(policies[0])
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(
sub_context.cfg).build_requests(), self.testing_controller)
pkt_sender = ScapyPacketInjector(self.IFACE)
packet = IPPacketBuilder()\
.set_ip_layer('8.8.8.8', sub_ip)\
.set_ether_layer(self.MAC_DEST, "00:00:00:00:00:00")\
.build()
flow_query = FlowQuery(self._tbl_num,
self.testing_controller,
match=flow_match_to_magma_match(
flow_list1[0].match))
# =========================== Verification ===========================
# Verify aggregate table stats, subscriber 1 'simple_match' pkt count
flow_verifier = FlowVerifier([
FlowTest(FlowQuery(self._tbl_num, self.testing_controller),
pkts_sent),
FlowTest(flow_query, pkts_matched)
], lambda: wait_after_send(self.testing_controller))
snapshot_verifier = SnapshotVerifier(self,
self.BRIDGE,
self.service_manager,
include_stats=False)
with isolator, sub_context, flow_verifier, snapshot_verifier:
pkt_sender.send(packet)
def test_no_match(self):
"""
No match test, checks that packets are not matched when
the there is no match to the ip and direction in the blacklist.
Assert:
Both packets are not matched
Ip match flows are added
"""
# Set up subscribers
sub = SubContextConfig('IMSI001010000000013', '192.168.128.74',
self._tbl_num)
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(sub).build_requests(),
self.testing_controller,
)
# Set up packets. The directions of the packets are opposite of the
# installed match flow, so there should not matches.
pkt_sender = ScapyPacketInjector(self.BRIDGE)
packets = [
self._build_default_ip_packet(self.OUTBOUND_TEST_IP, sub.ip),
self._build_default_ip_packet(sub.ip, self.INBOUND_TEST_IP),
]
# Check if these flows were added (queries should return flows)
outbound_flow_queries = [
FlowQuery(self._tbl_num, self.testing_controller,
match=MagmaMatch(eth_type=ether_types.ETH_TYPE_IP,
direction=Direction.OUT,
ipv4_dst=self.INBOUND_TEST_IP)),
FlowQuery(self._tbl_num, self.testing_controller,
match=MagmaMatch(eth_type=ether_types.ETH_TYPE_IP,
direction=Direction.IN,
ipv4_src=self.OUTBOUND_TEST_IP)),
]
# =========================== Verification ===========================
# packets are not matched, ip match flows installed
flow_verifier = FlowVerifier(
[
FlowTest(
FlowQuery(self._tbl_num, self.testing_controller), 2),
] + [FlowTest(query, 0, flow_count=1) for query in
outbound_flow_queries],
lambda: wait_after_send(
self.testing_controller)
)
with isolator, flow_verifier:
for packet in packets:
pkt_sender.send(packet)
flow_verifier.verify()
assert_bridge_snapshot_match(self,
self.BRIDGE,
self.service_manager)
def test_inbound_ip_match(self):
"""
Inbound ip match test, checks that packets are properly matched when
the inbound traffic matches an ip in the blocklist.
Assert:
Both packets are matched
Ip match flows are added
"""
# Set up subscribers
sub = SubContextConfig('IMSI001010000000013', '192.168.128.74',
default_ambr_config, self._tbl_num)
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(sub).build_requests(),
self.testing_controller,
)
# Set up packets
pkt_sender = ScapyPacketInjector(self.BRIDGE)
packets = [
self._build_default_ip_packet(self.INBOUND_TEST_IP, sub.ip),
self._build_default_ip_packet(self.BOTH_DIR_TEST_IP, sub.ip),
]
# Check if these flows were added (queries should return flows)
inbound_flow_queries = [
FlowQuery(self._tbl_num, self.testing_controller,
match=MagmaMatch(eth_type=ether_types.ETH_TYPE_IP,
direction=Direction.OUT,
ipv4_dst=self.INBOUND_TEST_IP)),
FlowQuery(self._tbl_num, self.testing_controller,
match=MagmaMatch(eth_type=ether_types.ETH_TYPE_IP,
direction=Direction.OUT,
ipv4_dst=self.BOTH_DIR_TEST_IP)),
]
# =========================== Verification ===========================
# packets matched, ip match flows installed
flow_verifier = FlowVerifier(
[
FlowTest(
FlowQuery(self._tbl_num, self.testing_controller), 2),
] + [FlowTest(query, 1, flow_count=1) for query in
inbound_flow_queries],
lambda: wait_after_send(
self.testing_controller)
)
with isolator, flow_verifier:
for packet in packets:
pkt_sender.send(packet)
flow_verifier.verify()
assert_bridge_snapshot_match(self,
self.BRIDGE,
self.service_manager)
def test_subscriber_ipv6_policy(self):
"""
Add policy to subscriber, send 4096 packets
Assert:
Packets are properly matched with the 'simple_match' policy
Send /20 (4096) packets, match /16 (256) packets
"""
fake_controller_setup(self.enforcement_controller)
imsi = 'IMSI010000000088888'
sub_ip = 'de34:431d:1bc::'
flow_list1 = [
FlowDescription(
match=FlowMatch(
ip_dst=convert_ipv6_bytes_to_ip_proto(
'f333:432::dbca'.encode('utf-8'), ),
direction=FlowMatch.UPLINK,
),
action=FlowDescription.PERMIT,
),
]
policies = [
VersionedPolicy(
rule=PolicyRule(id='simple_match',
priority=2,
flow_list=flow_list1),
version=1,
),
]
# ============================ Subscriber ============================
sub_context = RyuDirectSubscriberContext(
imsi,
sub_ip,
self.enforcement_controller,
self._tbl_num,
).add_policy(policies[0])
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(
sub_context.cfg).build_requests(),
self.testing_controller,
)
pkt_sender = ScapyPacketInjector(self.IFACE)
packet = IPv6PacketBuilder() \
.set_ip_layer('f333:432::dbca', sub_ip) \
.set_ether_layer(self.MAC_DEST, "00:00:00:00:00:00") \
.build()
# =========================== Verification ===========================
snapshot_verifier = SnapshotVerifier(
self,
self.BRIDGE,
self.service_manager,
)
with isolator, sub_context, snapshot_verifier:
pkt_sender.send(packet)
def test_subscriber_policy(self):
"""
Add policy to subscriber, send 4096 packets
Assert:
Packets are properly matched with the 'simple_match' policy
Send /20 (4096) packets, match /16 (256) packets
"""
imsi = 'IMSI010000000088888'
sub_ip = '192.168.128.74'
flow_list1 = [FlowDescription(
match=FlowMatch(
ipv4_dst='45.10.0.0/24', direction=FlowMatch.UPLINK),
action=FlowDescription.PERMIT)
]
policies = [
PolicyRule(id='simple_match', priority=2, flow_list=flow_list1)
]
pkts_matched = 256
pkts_sent = 4096
self._static_rule_dict[policies[0].id] = policies[0]
# ============================ Subscriber ============================
sub_context = RyuDirectSubscriberContext(
imsi, sub_ip, self.enforcement_controller, self._tbl_num
).add_static_rule(policies[0].id)
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(sub_context.cfg)
.build_requests(),
self.testing_controller
)
pkt_sender = ScapyPacketInjector(self.IFACE)
packet = IPPacketBuilder()\
.set_ip_layer('45.10.0.0/20', sub_ip)\
.set_ether_layer(self.MAC_DEST, "00:00:00:00:00:00")\
.build()
flow_query = FlowQuery(
self._tbl_num, self.testing_controller,
match=flow_match_to_magma_match(flow_list1[0].match)
)
# =========================== Verification ===========================
# Verify aggregate table stats, subscriber 1 'simple_match' pkt count
flow_verifier = FlowVerifier([
FlowTest(FlowQuery(self._tbl_num, self.testing_controller),
pkts_sent),
FlowTest(flow_query, pkts_matched)
], lambda: wait_after_send(self.testing_controller))
with isolator, sub_context, flow_verifier:
pkt_sender.send(packet)
flow_verifier.verify()
def test_subscriber_redirect_policy(self):
"""
Add redirect policy to subscriber, send 4096 packets
Assert:
Packets are properly matched with the 'simple_match' policy
Send /20 (4096) packets, match /16 (256) packets
"""
fake_controller_setup(self.gy_controller)
imsi = 'IMSI010000000088888'
sub_ip = '192.168.128.74'
redirect_ips = ["185.128.101.5", "185.128.121.4"]
self.gy_controller._redirect_manager._dns_cache.get(
"about.sha.ddih.org", lambda: redirect_ips, max_age=42,
)
flow_list = [FlowDescription(match=FlowMatch())]
policy = VersionedPolicy(
rule=PolicyRule(
id='redir_test', priority=3, flow_list=flow_list,
redirect=RedirectInformation(
support=1,
address_type=2,
server_address="http://about.sha.ddih.org/",
),
),
version=1,
)
# ============================ Subscriber ============================
sub_context = RyuDirectSubscriberContext(
imsi, sub_ip, self.gy_controller, self._tbl_num,
).add_policy(policy)
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(sub_context.cfg)
.build_requests(),
self.testing_controller,
)
pkt_sender = ScapyPacketInjector(self.IFACE)
packet = TCPPacketBuilder()\
.set_tcp_layer(42132, 80, 2)\
.set_tcp_flags("S")\
.set_ip_layer('151.42.41.122', sub_ip)\
.set_ether_layer(self.MAC_DEST, "01:20:10:20:aa:bb")\
.build()
snapshot_verifier = SnapshotVerifier(
self, self.BRIDGE,
self.service_manager,
include_stats=False,
)
with isolator, sub_context, snapshot_verifier:
pkt_sender.send(packet)
def test_subscriber_policy_with_he(self):
"""
Add policy to subscriber with HE config
"""
cls = self.__class__
fake_controller_setup(self.enforcement_controller)
imsi = 'IMSI010000000088888'
sub_ip = '192.168.128.74'
flow_list1 = [
FlowDescription(
match=FlowMatch(
ip_dst=convert_ipv4_str_to_ip_proto('45.10.0.0/24'),
direction=FlowMatch.UPLINK,
),
action=FlowDescription.PERMIT,
),
]
he = HeaderEnrichment(urls=['abc.com'])
policies = [
VersionedPolicy(
rule=PolicyRule(id='simple_match',
priority=2,
flow_list=flow_list1,
he=he),
version=1,
),
]
# ============================ Subscriber ============================
sub_context = RyuDirectSubscriberContext(
imsi,
sub_ip,
self.enforcement_controller,
self._tbl_num,
).add_policy(policies[0])
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(
sub_context.cfg).build_requests(),
self.testing_controller,
)
snapshot_verifier = SnapshotVerifier(
self,
self.BRIDGE,
self.service_manager,
)
with isolator, sub_context, snapshot_verifier:
pass
def test_ipv6_flows(self):
"""
Verify that a UPLINK->UE arp request is properly matched
"""
ll_addr = get_if_hwaddr('testing_br')
pkt_sender = ScapyPacketInjector(self.IFACE)
pkt_rs = Ether(dst=self.OTHER_MAC, src=self.UE_MAC)
pkt_rs /= IPv6(
src='fe80:24c3:d0ff:fef3:9d21:4407:d337:1928',
dst='ff02::2',
)
pkt_rs /= ICMPv6ND_RS()
pkt_rs /= ICMPv6NDOptSrcLLAddr(lladdr=ll_addr)
pkt_ns = Ether(dst=self.OTHER_MAC, src=self.UE_MAC)
pkt_ns /= IPv6(
src='fe80::9d21:4407:d337:1928',
dst='ff02::2',
)
pkt_ns /= ICMPv6ND_NS(tgt='abcd:87:3::')
pkt_ns /= ICMPv6NDOptSrcLLAddr(lladdr=ll_addr)
ipv6_addr = 'ab22:5:6c:9:9d21:4407:d337:1928'
interface = get_ipv6_interface_id(ipv6_addr)
prefix = get_ipv6_prefix(ipv6_addr)
self.service_manager.interface_to_prefix_mapper.save_prefix(
interface,
prefix,
)
ulink_args = RyuForwardFlowArgsBuilder(self._tbl_num) \
.set_eth_match(eth_dst=self.OTHER_MAC, eth_src=self.UE_MAC) \
.set_reg_value(DIRECTION_REG, Direction.OUT) \
.build_requests()
isolator = RyuDirectTableIsolator(ulink_args, self.testing_controller)
snapshot_verifier = SnapshotVerifier(
self,
self.BRIDGE,
self.service_manager,
include_stats=False,
)
with isolator, snapshot_verifier:
pkt_sender.send(pkt_rs)
pkt_sender.send(pkt_ns)
wait_after_send(self.testing_controller, wait_time=5)
def packet_sender():
isolators = [
RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(
sub).build_requests(),
self.testing_controller,
) for sub in subs
]
flow_query = FlowQuery(20, self.testing_controller)
pkt_start = sum(flow.packets for flow in flow_query.lookup())
with ExitStack() as es:
for iso in isolators:
es.enter_context(iso)
for packet in packets:
pkt_sender.send(packet, count=count)
wait_after_send(self.testing_controller)
pkt_final = sum(flow.packets for flow in flow_query.lookup())
return pkt_final - pkt_start
def test_blocking_ip_match(self):
"""
Inbound ip match test, checks that packets are properly matched when
the inbound traffic matches an ip in the blocklist.
Assert:
Both packets are matched
Ip match flows are added
"""
# Set up subscribers
sub = SubContextConfig(
'IMSI001010000000013',
'192.168.128.74',
default_ambr_config,
self._tbl_num,
)
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(sub).build_requests(),
self.testing_controller,
)
# Set up packets
pkt_sender = ScapyPacketInjector(self.BRIDGE)
packets = [
_build_default_ip_packet(self.MAC_DEST, self.OUTBOUND_TEST_IP1,
sub.ip),
_build_default_ip_packet(self.MAC_DEST, self.OUTBOUND_TEST_IP2,
sub.ip),
_build_default_ip_packet(self.MAC_DEST, self.BOTH_DIR_TEST_IP,
sub.ip),
]
with isolator:
for packet in packets:
pkt_sender.send(packet)
assert_bridge_snapshot_match(
self,
self.BRIDGE,
self.service_manager,
)
def test_blocking_ip_match(self):
"""
Inbound ip match test, checks that packets are properly matched when
the inbound traffic matches an ip in the blocklist.
Assert:
Both packets are matched
Ip match flows are added
"""
sub = self._setup_subscribers_ipv6()
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(sub).build_requests(),
self.testing_controller,
)
# Set up packets
pkt_sender = ScapyPacketInjector(self.BRIDGE)
packets = [
_build_default_ipv6_packet(self.MAC_DEST, self.OUTBOUND_TEST_IP1,
sub.ip),
_build_default_ipv6_packet(self.MAC_DEST, self.OUTBOUND_TEST_IP2,
sub.ip),
_build_default_ipv6_packet(self.MAC_DEST, self.OUTBOUND_TEST_IP3,
sub.ip),
]
with isolator:
for packet in packets:
pkt_sender.send(packet)
assert_bridge_snapshot_match(
self,
self.BRIDGE,
self.service_manager,
ipv6_prefix_only=True,
)
def test_mtr_arp(self):
"""
Verify that a MTR arp request is handled in ARP responder
"""
pkt_sender = ScapyPacketInjector(self.IFACE)
arp_packet = ARPPacketBuilder() \
.set_ether_layer(self.OTHER_MAC, self.MAC_DEST) \
.set_arp_layer(self.MTR_IP) \
.set_arp_hwdst(self.OTHER_MAC) \
.set_arp_src(self.UE_MAC, self.UE_IP) \
.build()
uplink_args = RyuForwardFlowArgsBuilder(self._tbl_num) \
.set_eth_type_arp() \
.set_reg_value(DIRECTION_REG, Direction.IN) \
.build_requests()
isolator = RyuDirectTableIsolator(uplink_args, self.testing_controller)
time.sleep(1)
snapshot_verifier = SnapshotVerifier(self, self.BRIDGE,
self.service_manager)
with isolator, snapshot_verifier:
pkt_sender.send(arp_packet, count=4)
wait_after_send(self.testing_controller)
def test_rule_reactivation(self):
"""
Adds a policy to a subscriber, deletes it by incrementing the
version, and add it back. Verifies that the usage stats is correctly
reported, the old flows are deleted, and the new flows are installed.
Assert:
UPLINK policy matches 128 packets (*34 = 4352 bytes)
Old flows are deleted
New flows are installed
No other stats are reported
"""
fake_controller_setup(self.enforcement_controller,
self.enforcement_stats_controller)
imsi = 'IMSI001010000000013'
sub_ip = '192.168.128.74'
num_pkts_tx_match = 128
flow_list = [
FlowDescription(match=FlowMatch(ipv4_dst='45.10.0.0/25',
direction=FlowMatch.UPLINK),
action=FlowDescription.PERMIT)
]
policy = PolicyRule(id='rule1', priority=3, flow_list=flow_list)
enf_stat_name = imsi + '|rule1'
self.service_manager.session_rule_version_mapper.update_version(
imsi, 'rule1')
version = \
self.service_manager.session_rule_version_mapper.get_version(
imsi, 'rule1')
""" Setup subscriber, setup table_isolation to fwd pkts """
self._static_rule_dict[policy.id] = policy
sub_context = RyuDirectSubscriberContext(
imsi, sub_ip, self.enforcement_controller, self._main_tbl_num,
self.enforcement_stats_controller).add_static_rule(policy.id)
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(
sub_context.cfg).build_requests(), self.testing_controller)
""" Create a packet """
pkt_sender = ScapyPacketInjector(self.IFACE)
packet = IPPacketBuilder() \
.set_ip_layer('45.10.0.0/20', sub_ip) \
.set_ether_layer(self.MAC_DEST, "00:00:00:00:00:00") \
.build()
# =========================== Verification ===========================
rule_num = self.enforcement_stats_controller._rule_mapper \
.get_or_create_rule_num(policy.id)
enf_query = FlowQuery(self._main_tbl_num,
self.testing_controller,
match=flow_match_to_magma_match(
FlowMatch(ipv4_dst='45.10.0.0/25',
direction=FlowMatch.UPLINK)),
cookie=rule_num)
es_old_version_query = FlowQuery(self._scratch_tbl_num,
self.testing_controller,
match=MagmaMatch(
imsi=encode_imsi(imsi),
reg2=rule_num,
rule_version=version),
cookie=rule_num)
es_new_version_query = FlowQuery(self._scratch_tbl_num,
self.testing_controller,
match=MagmaMatch(
imsi=encode_imsi(imsi),
reg2=rule_num,
rule_version=version + 1),
cookie=rule_num)
packet_wait = FlowVerifier([], self._wait_func([enf_stat_name]))
""" Verify that flows are properly deleted """
verifier = FlowVerifier([
FlowTest(es_old_version_query, 0, flow_count=0),
FlowTest(es_new_version_query, num_pkts_tx_match, flow_count=2),
FlowTest(enf_query, num_pkts_tx_match, flow_count=1),
], self._wait_func([enf_stat_name]))
snapshot_verifier = SnapshotVerifier(self, self.BRIDGE,
self.service_manager)
"""
Send a packet, then deactivate and reactivate the same rule and send a
packet. Wait until it is received by ovs and enf stats.
"""
with isolator, sub_context, verifier, snapshot_verifier:
with packet_wait:
self.enforcement_stats_controller._report_usage.reset_mock()
pkt_sender.send(packet)
self.enforcement_stats_controller._report_usage.reset_mock()
self.service_manager.session_rule_version_mapper. \
update_version(imsi, 'rule1')
self.enforcement_controller.deactivate_rules(imsi, [policy.id])
self.enforcement_controller.activate_rules(imsi, sub_ip,
[policy.id], [])
self.enforcement_stats_controller.activate_rules(
imsi, sub_ip, [policy.id], [])
pkt_sender.send(packet)
verifier.verify()
stats = get_enforcement_stats(
self.enforcement_stats_controller._report_usage.call_args_list)
"""
Verify both packets are reported after reactivation.
"""
self.assertEqual(stats[enf_stat_name].sid, imsi)
self.assertEqual(stats[enf_stat_name].rule_id, "rule1")
self.assertEqual(stats[enf_stat_name].bytes_rx, 0)
# TODO Figure out why this one fails.
#self.assertEqual(stats[enf_stat_name].bytes_tx,
# num_pkts_tx_match * len(packet))
self.assertEqual(len(stats), 1)
def test_subscriber_policy(self):
"""
Adds 2 policies to subscriber, verifies that EnforcementStatsController
reports correct stats to sessiond
Assert:
UPLINK policy matches 128 packets (*34 = 4352 bytes)
DOWNLINK policy matches 256 packets (*34 = 8704 bytes)
No other stats are reported
"""
fake_controller_setup(self.enforcement_controller,
self.enforcement_stats_controller)
imsi = 'IMSI001010000000013'
sub_ip = '192.168.128.74'
num_pkts_tx_match = 128
num_pkts_rx_match = 256
""" Create 2 policy rules for the subscriber """
flow_list1 = [
FlowDescription(match=FlowMatch(ipv4_dst='45.10.0.0/25',
direction=FlowMatch.UPLINK),
action=FlowDescription.PERMIT)
]
flow_list2 = [
FlowDescription(match=FlowMatch(ipv4_src='45.10.0.0/24',
direction=FlowMatch.DOWNLINK),
action=FlowDescription.PERMIT)
]
policies = [
PolicyRule(id='tx_match', priority=3, flow_list=flow_list1),
PolicyRule(id='rx_match', priority=5, flow_list=flow_list2)
]
enf_stat_name = [imsi + '|tx_match', imsi + '|rx_match']
self.service_manager.session_rule_version_mapper.update_version(
imsi, 'tx_match')
self.service_manager.session_rule_version_mapper.update_version(
imsi, 'rx_match')
""" Setup subscriber, setup table_isolation to fwd pkts """
self._static_rule_dict[policies[0].id] = policies[0]
self._static_rule_dict[policies[1].id] = policies[1]
sub_context = RyuDirectSubscriberContext(
imsi, sub_ip, self.enforcement_controller, self._main_tbl_num,
self.enforcement_stats_controller).add_static_rule(
policies[0].id).add_static_rule(policies[1].id)
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(
sub_context.cfg).build_requests(), self.testing_controller)
""" Create 2 sets of packets, for policry rule1&2 """
pkt_sender = ScapyPacketInjector(self.IFACE)
packet1 = IPPacketBuilder()\
.set_ip_layer('45.10.0.0/20', sub_ip)\
.set_ether_layer(self.MAC_DEST, "00:00:00:00:00:00")\
.build()
packet2 = IPPacketBuilder()\
.set_ip_layer(sub_ip, '45.10.0.0/20')\
.set_ether_layer(self.MAC_DEST, "00:00:00:00:00:00")\
.build()
# =========================== Verification ===========================
flow_verifier = FlowVerifier([], self._wait_func(enf_stat_name))
snapshot_verifier = SnapshotVerifier(self, self.BRIDGE,
self.service_manager)
""" Send packets, wait until pkts are received by ovs and enf stats """
with isolator, sub_context, flow_verifier, snapshot_verifier:
pkt_sender.send(packet1)
pkt_sender.send(packet2)
stats = get_enforcement_stats(
self.enforcement_stats_controller._report_usage.call_args_list)
self.assertEqual(stats[enf_stat_name[0]].sid, imsi)
self.assertEqual(stats[enf_stat_name[0]].rule_id, "tx_match")
self.assertEqual(stats[enf_stat_name[0]].bytes_rx, 0)
self.assertEqual(stats[enf_stat_name[0]].bytes_tx,
num_pkts_tx_match * len(packet1))
self.assertEqual(stats[enf_stat_name[1]].sid, imsi)
self.assertEqual(stats[enf_stat_name[1]].rule_id, "rx_match")
self.assertEqual(stats[enf_stat_name[1]].bytes_tx, 0)
# downlink packets will discount ethernet header by default
# so, only count the IP portion
total_bytes_pkt2 = num_pkts_rx_match * len(packet2[IP])
self.assertEqual(stats[enf_stat_name[1]].bytes_rx, total_bytes_pkt2)
self.assertEqual(len(stats), 2)
def test_two_subscribers(self):
"""
Add 2 subscribers at the same time
Assert:
For subcriber1 the packets are matched to the proper policy
For subcriber2 the packets are matched to the proper policy
The total packet delta in the table is from the above matches
"""
fake_controller_setup(self.enforcement_controller)
pkt_sender = ScapyPacketInjector(self.IFACE)
ip_match = [
FlowDescription(match=FlowMatch(
ip_src=convert_ipv4_str_to_ip_proto('8.8.8.0/24'),
direction=1),
action=1)
]
tcp_match = [
FlowDescription(match=FlowMatch(ip_proto=6,
direction=FlowMatch.DOWNLINK),
action=FlowDescription.DENY)
]
self._static_rule_dict['t'] = PolicyRule(id='t',
priority=2,
flow_list=ip_match)
# =========================== Subscriber 1 ===========================
sub_context1 = RyuDirectSubscriberContext(
'IMSI208950001111111', '192.168.128.5',
self.enforcement_controller, self._tbl_num).add_static_rule('t')
isolator1 = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(
sub_context1.cfg).build_requests(), self.testing_controller)
packet_ip = IPPacketBuilder()\
.set_ether_layer(self.MAC_DEST, "00:00:00:00:00:00")\
.set_ip_layer(sub_context1.cfg.ip, '8.8.8.8')\
.build()
s1_pkts_sent = 29
pkts_to_send = [PktsToSend(packet_ip, s1_pkts_sent)]
flow_query1 = FlowQuery(self._tbl_num,
self.testing_controller,
match=flow_match_to_magma_match(
ip_match[0].match))
s1 = SubTest(sub_context1, isolator1,
FlowTest(flow_query1, s1_pkts_sent))
# =========================== Subscriber 2 ===========================
sub_context2 = RyuDirectSubscriberContext(
'IMSI911500451242001', '192.168.128.100',
self.enforcement_controller, self._tbl_num).add_dynamic_rule(
PolicyRule(id='qqq', priority=2, flow_list=tcp_match))
isolator2 = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(
sub_context2.cfg).build_requests(), self.testing_controller)
packet_tcp = TCPPacketBuilder()\
.set_ether_layer(self.MAC_DEST, "00:00:00:00:00:00")\
.set_ip_layer(sub_context2.cfg.ip, '15.0.0.8')\
.build()
s2_pkts_sent = 18
pkts_to_send.append(PktsToSend(packet_tcp, s2_pkts_sent))
flow_query2 = FlowQuery(self._tbl_num,
self.testing_controller,
match=flow_match_to_magma_match(
tcp_match[0].match))
s2 = SubTest(sub_context2, isolator2,
FlowTest(flow_query2, s2_pkts_sent))
# =========================== Verification ===========================
# Verify aggregate table stats, subscriber 1 & 2 flows packet matches
pkts = s1_pkts_sent + s2_pkts_sent
flow_verifier = FlowVerifier([
FlowTest(FlowQuery(self._tbl_num, self.testing_controller), pkts),
s1.flowtest_list, s2.flowtest_list
], lambda: wait_after_send(self.testing_controller))
snapshot_verifier = SnapshotVerifier(self, self.BRIDGE,
self.service_manager)
with s1.isolator, s1.context, s2.isolator, s2.context, flow_verifier, \
snapshot_verifier:
for pkt in pkts_to_send:
pkt_sender.send(pkt.pkt, pkt.num)
flow_verifier.verify()
def test_subscriber_two_policies(self):
"""
Add 2 policies to subscriber
Assert:
Packets are properly matched with the 'match' policy
The total packet delta in the table is from the above match
"""
fake_controller_setup(self.enforcement_controller)
imsi = 'IMSI208950000000001'
sub_ip = '192.168.128.74'
flow_list1 = [
FlowDescription(match=FlowMatch(
ip_src=convert_ipv4_str_to_ip_proto('15.0.0.0/24'),
direction=FlowMatch.DOWNLINK),
action=FlowDescription.DENY)
]
flow_list2 = [
FlowDescription(match=FlowMatch(ip_proto=6,
direction=FlowMatch.UPLINK),
action=FlowDescription.PERMIT)
]
policies = [
PolicyRule(id='match', priority=2, flow_list=flow_list1),
PolicyRule(id='no_match', priority=2, flow_list=flow_list2)
]
pkts_sent = 42
self._static_rule_dict[policies[0].id] = policies[0]
self._static_rule_dict[policies[1].id] = policies[1]
# ============================ Subscriber ============================
sub_context = RyuDirectSubscriberContext(imsi, sub_ip,
self.enforcement_controller,
self._tbl_num) \
.add_static_rule(policies[0].id)\
.add_static_rule(policies[1].id)
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(
sub_context.cfg).build_requests(), self.testing_controller)
pkt_sender = ScapyPacketInjector(self.IFACE)
packet = IPPacketBuilder()\
.set_ip_layer(sub_ip, '15.0.0.8')\
.set_ether_layer(self.MAC_DEST, "00:00:00:00:00:00")\
.build()
flow_query = FlowQuery(self._tbl_num,
self.testing_controller,
match=flow_match_to_magma_match(
flow_list1[0].match))
# =========================== Verification ===========================
# Verify aggregate table stats, subscriber 1 'match' rule pkt count
flow_verifier = FlowVerifier([
FlowTest(FlowQuery(self._tbl_num, self.testing_controller),
pkts_sent),
FlowTest(flow_query, pkts_sent)
], lambda: wait_after_send(self.testing_controller))
snapshot_verifier = SnapshotVerifier(self, self.BRIDGE,
self.service_manager)
with isolator, sub_context, flow_verifier, snapshot_verifier:
pkt_sender.send(packet, pkts_sent)
flow_verifier.verify()
def test_rule_reactivation(self):
"""
Adds a policy to a subscriber, deletes it by incrementing the
version, and add it back. Verifies that the usage stats is correctly
reported, the old flows are deleted, and the new flows are installed.
Assert:
UPLINK policy matches 128 packets (*34 = 4352 bytes)
Old flows are deleted
New flows are installed
No other stats are reported
"""
fake_controller_setup(
self.enforcement_controller,
self.enforcement_stats_controller,
)
imsi = 'IMSI001010000000013'
sub_ip = '192.168.128.74'
num_pkts_tx_match = 128
flow_list = [
FlowDescription(
match=FlowMatch(
ip_dst=convert_ipv4_str_to_ip_proto('45.10.0.0/25'),
direction=FlowMatch.UPLINK,
),
action=FlowDescription.PERMIT,
),
]
policy = VersionedPolicy(
rule=PolicyRule(id='rule1', priority=3, flow_list=flow_list),
version=1,
)
self.service_manager.session_rule_version_mapper.save_version(
imsi,
convert_ipv4_str_to_ip_proto(sub_ip),
'rule1',
1,
)
""" Setup subscriber, setup table_isolation to fwd pkts """
sub_context = RyuDirectSubscriberContext(
imsi,
sub_ip,
self.enforcement_controller,
self._main_tbl_num,
self.enforcement_stats_controller,
).add_policy(policy)
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(
sub_context.cfg).build_requests(),
self.testing_controller,
)
""" Create a packet """
pkt_sender = ScapyPacketInjector(self.IFACE)
packet = IPPacketBuilder() \
.set_ip_layer('45.10.0.0/20', sub_ip) \
.set_ether_layer(self.MAC_DEST, "00:00:00:00:00:00") \
.build()
# =========================== Verification ===========================
""" Verify that flows are properly deleted """
snapshot_verifier = SnapshotVerifier(
self,
self.BRIDGE,
self.service_manager,
)
"""
Send a packet, then deactivate and reactivate the same rule and send a
packet. Wait until it is received by ovs and enf stats.
"""
with isolator, sub_context, snapshot_verifier:
pkt_sender.send(packet)
self.service_manager.session_rule_version_mapper. \
save_version(
imsi, convert_ipv4_str_to_ip_proto(sub_ip),
'rule1', 2,
)
self.enforcement_controller.deactivate_rules(
imsi,
convert_ipv4_str_to_ip_proto(sub_ip),
[policy.rule.id],
)
policy.version = 2
self.enforcement_controller.activate_rules(
imsi,
None,
None,
convert_ipv4_str_to_ip_proto(sub_ip),
None,
[policy],
0,
0,
)
self.enforcement_stats_controller.activate_rules(
imsi,
None,
None,
convert_ipv4_str_to_ip_proto(sub_ip),
None,
[policy],
0,
0,
)
pkt_sender.send(packet)
enf_stat_names = [
imsi + '|rule1' + '|' + sub_ip + '|' + "1",
imsi + '|rule1' + '|' + sub_ip + '|' + "2",
]
wait_for_enforcement_stats(
self.enforcement_stats_controller,
enf_stat_names,
)
stats = get_enforcement_stats(
self.enforcement_stats_controller._report_usage.call_args_list,
)
for args in self.enforcement_stats_controller._report_usage.call_args_list:
self.enforcement_stats_controller._delete_old_flows(
args[0][0].values())
self.assertEqual(stats[enf_stat_names[0]].sid, imsi)
self.assertEqual(stats[enf_stat_names[0]].rule_id, "rule1")
self.assertEqual(stats[enf_stat_names[0]].rule_version, 1)
self.assertEqual(stats[enf_stat_names[0]].bytes_rx, 0)
self.assertEqual(len(stats), 3)
self.enforcement_stats_controller._report_usage.reset_mock()
wait_for_enforcement_stats(
self.enforcement_stats_controller,
[enf_stat_names[1]],
)
stats = get_enforcement_stats(
self.enforcement_stats_controller._report_usage.call_args_list, )
"""
Verify both packets are reported after reactivation.
"""
self.assertEqual(stats[enf_stat_names[1]].sid, imsi)
self.assertEqual(stats[enf_stat_names[1]].rule_id, "rule1")
self.assertEqual(stats[enf_stat_names[1]].rule_version, 2)
self.assertEqual(stats[enf_stat_names[1]].bytes_rx, 0)
# TODO Figure out why this one fails.
# self.assertEqual(stats[enf_stat_name].bytes_tx,
# num_pkts_tx_match * len(packet))
self.assertEqual(len(stats), 2)
def test_url_redirect(self):
"""
Partial redirection test, checks if flows were added properly for url
based redirection.
Assert:
1 Packet is matched
Packet bypass flows are added
Flow learn action is triggered - another flow is added to the table
"""
fake_controller_setup(self.enforcement_controller)
redirect_ips = ["185.128.101.5", "185.128.121.4"]
self.enforcement_controller._redirect_manager._dns_cache.get(
"about.sha.ddih.org", lambda: redirect_ips, max_age=42)
imsi = 'IMSI010000000088888'
sub_ip = '192.168.128.74'
flow_list = [FlowDescription(match=FlowMatch())]
policy = PolicyRule(id='redir_test',
priority=3,
flow_list=flow_list,
redirect=RedirectInformation(
support=1,
address_type=2,
server_address="http://about.sha.ddih.org/"))
# ============================ Subscriber ============================
sub_context = RyuDirectSubscriberContext(
imsi, sub_ip, self.enforcement_controller,
self._tbl_num).add_dynamic_rule(policy)
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(
sub_context.cfg).build_requests(), self.testing_controller)
pkt_sender = ScapyPacketInjector(self.IFACE)
packet = TCPPacketBuilder()\
.set_tcp_layer(42132, 80, 321)\
.set_tcp_flags("S")\
.set_ip_layer('151.42.41.122', sub_ip)\
.set_ether_layer(self.MAC_DEST, "00:00:00:00:00:00")\
.build()
# Check if these flows were added (queries should return flows)
permit_outbound, permit_inbound = [], []
for ip in redirect_ips:
permit_outbound.append(
FlowQuery(self._tbl_num,
self.testing_controller,
match=flow_match_to_magma_match(
FlowMatch(ipv4_dst=ip,
direction=FlowMatch.UPLINK))))
permit_inbound.append(
FlowQuery(self._tbl_num,
self.testing_controller,
match=flow_match_to_magma_match(
FlowMatch(ipv4_src=ip,
direction=FlowMatch.DOWNLINK))))
learn_action_flow = flow_match_to_magma_match(
FlowMatch(ip_proto=6,
direction=FlowMatch.DOWNLINK,
ipv4_src=self.BRIDGE_IP_ADDRESS,
ipv4_dst=sub_ip))
learn_action_query = FlowQuery(self._tbl_num, self.testing_controller,
learn_action_flow)
# =========================== Verification ===========================
# 1 packet sent, permit rules installed, learn action installed. Since
# the enforcement table is entered via the DPI table and the scratch
# enforcement table, the number of packets handled by the table is 2.
flow_verifier = FlowVerifier(
[
FlowTest(FlowQuery(self._tbl_num, self.testing_controller), 2),
FlowTest(learn_action_query, 0, flow_count=1)
] +
[FlowTest(query, 0, flow_count=1) for query in permit_outbound] +
[FlowTest(query, 0, flow_count=1) for query in permit_inbound],
lambda: wait_after_send(self.testing_controller))
with isolator, sub_context, flow_verifier:
pkt_sender.send(packet)
assert_bridge_snapshot_match(self, self.BRIDGE,
self.service_manager)
flow_verifier.verify()
def test_enforcement_restart(self):
"""
Adds rules using the setup feature
1) Empty SetupFlowsRequest
- assert default flows
2) Add 2 imsis, add 2 policies(sub1_rule_temp, sub2_rule_keep),
- assert everything is properly added
3) Same imsis 1 new policy, 1 old (sub2_new_rule, sub2_rule_keep)
- assert everything is properly added
4) Empty SetupFlowsRequest
- assert default flows
"""
fake_controller_setup(
enf_controller=self.enforcement_controller,
enf_stats_controller=self.enforcement_stats_controller,
startup_flow_controller=self.startup_flows_contoller)
snapshot_verifier = SnapshotVerifier(self, self.BRIDGE,
self.service_manager,
'default_flows')
with snapshot_verifier:
pass
imsi1 = 'IMSI010000000088888'
imsi2 = 'IMSI010000000012345'
sub2_ip = '192.168.128.74'
flow_list1 = [
FlowDescription(match=FlowMatch(ipv4_dst='45.10.0.0/24',
direction=FlowMatch.UPLINK),
action=FlowDescription.PERMIT),
FlowDescription(match=FlowMatch(ipv4_dst='45.11.0.0/24',
direction=FlowMatch.UPLINK),
action=FlowDescription.PERMIT)
]
flow_list2 = [
FlowDescription(match=FlowMatch(ipv4_dst='10.10.1.0/24',
direction=FlowMatch.UPLINK),
action=FlowDescription.PERMIT)
]
policies1 = [
PolicyRule(id='sub1_rule_temp', priority=2, flow_list=flow_list1),
]
policies2 = [
PolicyRule(id='sub2_rule_keep', priority=3, flow_list=flow_list2)
]
enf_stat_name = [imsi1 + '|sub1_rule_temp', imsi2 + '|sub2_rule_keep']
self.service_manager.session_rule_version_mapper.update_version(
imsi1, 'sub1_rule_temp')
self.service_manager.session_rule_version_mapper.update_version(
imsi2, 'sub2_rule_keep')
setup_flows_request = SetupFlowsRequest(requests=[
ActivateFlowsRequest(sid=SIDUtils.to_pb(imsi1),
dynamic_rules=policies1),
ActivateFlowsRequest(sid=SIDUtils.to_pb(imsi2),
dynamic_rules=policies2),
],
epoch=global_epoch)
fake_controller_setup(
enf_controller=self.enforcement_controller,
enf_stats_controller=self.enforcement_stats_controller,
startup_flow_controller=self.startup_flows_contoller,
setup_flows_request=setup_flows_request)
sub_context = RyuDirectSubscriberContext(imsi2, sub2_ip,
self.enforcement_controller,
self._enforcement_tbl_num)
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(
sub_context.cfg).build_requests(), self.testing_controller)
pkt_sender = ScapyPacketInjector(self.IFACE)
packets = IPPacketBuilder()\
.set_ip_layer('10.10.1.8/20', sub2_ip)\
.set_ether_layer(self.MAC_DEST, "00:00:00:00:00:00")\
.build()
pkts_sent = 4096
pkts_matched = 256
flow_query = FlowQuery(self._enforcement_tbl_num,
self.testing_controller,
match=flow_match_to_magma_match(
flow_list2[0].match))
flow_verifier = FlowVerifier([
FlowTest(
FlowQuery(self._enforcement_tbl_num, self.testing_controller),
pkts_sent),
FlowTest(flow_query, pkts_matched)
], self._wait_func(enf_stat_name))
snapshot_verifier = SnapshotVerifier(self, self.BRIDGE,
self.service_manager,
'before_restart')
with isolator, flow_verifier, snapshot_verifier:
pkt_sender.send(packets)
flow_verifier.verify()
flow_list1 = [
FlowDescription(match=FlowMatch(ipv4_dst='24.10.0.0/24',
direction=FlowMatch.UPLINK),
action=FlowDescription.PERMIT)
]
policies = [
PolicyRule(id='sub2_new_rule', priority=2, flow_list=flow_list1),
PolicyRule(id='sub2_rule_keep', priority=3, flow_list=flow_list2)
]
self.service_manager.session_rule_version_mapper.update_version(
imsi2, 'sub2_new_rule')
enf_stat_name = [imsi2 + '|sub2_new_rule', imsi2 + '|sub2_rule_keep']
setup_flows_request = SetupFlowsRequest(requests=[
ActivateFlowsRequest(sid=SIDUtils.to_pb(imsi2),
dynamic_rules=policies)
],
epoch=global_epoch)
fake_controller_setup(
enf_controller=self.enforcement_controller,
enf_stats_controller=self.enforcement_stats_controller,
startup_flow_controller=self.startup_flows_contoller,
setup_flows_request=setup_flows_request)
flow_verifier = FlowVerifier([FlowTest(flow_query, pkts_matched)],
self._wait_func(enf_stat_name))
snapshot_verifier = SnapshotVerifier(self, self.BRIDGE,
self.service_manager,
'after_restart')
with flow_verifier, snapshot_verifier:
pass
fake_controller_setup(
enf_controller=self.enforcement_controller,
enf_stats_controller=self.enforcement_stats_controller,
startup_flow_controller=self.startup_flows_contoller)
snapshot_verifier = SnapshotVerifier(self, self.BRIDGE,
self.service_manager,
'default_flows')
with snapshot_verifier:
pass
def test_rule_deactivation(self):
"""
Adds a policy to a subscriber, and then deletes it by incrementing the
version, verifies that the usage stats is correctly reported and the
flows are deleted.
Assert:
UPLINK policy matches 128 packets (*34 = 4352 bytes)
Flows are deleted
No other stats are reported
"""
fake_controller_setup(self.enforcement_controller,
self.enforcement_stats_controller)
imsi = 'IMSI001010000000013'
sub_ip = '192.168.128.74'
num_pkts_tx_match = 128
flow_list = [
FlowDescription(match=FlowMatch(
ip_dst=convert_ipv4_str_to_ip_proto('45.10.0.0/25'),
direction=FlowMatch.UPLINK),
action=FlowDescription.PERMIT)
]
policy = VersionedPolicy(
rule=PolicyRule(id='rule1', priority=3, flow_list=flow_list),
version=1,
)
enf_stat_name = imsi + '|rule1' + '|' + sub_ip + '|' + "1"
self.service_manager.session_rule_version_mapper.save_version(
imsi, convert_ipv4_str_to_ip_proto(sub_ip), 'rule1', 1)
""" Setup subscriber, setup table_isolation to fwd pkts """
sub_context = RyuDirectSubscriberContext(
imsi, sub_ip, self.enforcement_controller, self._main_tbl_num,
self.enforcement_stats_controller).add_policy(policy)
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(
sub_context.cfg).build_requests(), self.testing_controller)
""" Create a packet """
pkt_sender = ScapyPacketInjector(self.IFACE)
packet = IPPacketBuilder() \
.set_ip_layer('45.10.0.0/20', sub_ip) \
.set_ether_layer(self.MAC_DEST, "00:00:00:00:00:00") \
.build()
# =========================== Verification ===========================
""" Verify that flows are properly deleted """
snapshot_verifier = SnapshotVerifier(self, self.BRIDGE,
self.service_manager)
"""
Send packets, wait until packet is received by ovs and enf stats and
then deactivate the rule in enforcement controller. This emulates the
case where there is unreported traffic after rule deactivation.
"""
with isolator, sub_context, snapshot_verifier:
self.enforcement_stats_controller._report_usage.reset_mock()
pkt_sender.send(packet)
self.service_manager.session_rule_version_mapper. \
save_version(imsi, convert_ipv4_str_to_ip_proto(sub_ip),
'rule1', 2)
self.enforcement_controller.deactivate_rules(
imsi, convert_ipv4_str_to_ip_proto(sub_ip), [policy.rule.id])
wait_for_enforcement_stats(self.enforcement_stats_controller,
[enf_stat_name])
stats = get_enforcement_stats(
self.enforcement_stats_controller._report_usage.call_args_list)
for args in self.enforcement_stats_controller._report_usage.call_args_list:
self.enforcement_stats_controller._delete_old_flows(
args[0][0].values())
self.assertEqual(stats[enf_stat_name].sid, imsi)
self.assertEqual(stats[enf_stat_name].rule_id, "rule1")
self.assertEqual(stats[enf_stat_name].rule_version, 1)
self.assertEqual(stats[enf_stat_name].bytes_rx, 0)
self.assertEqual(stats[enf_stat_name].bytes_tx,
num_pkts_tx_match * len(packet))
self.assertEqual(len(stats), 2)
self.enforcement_stats_controller.deactivate_default_flow(
imsi, convert_ipv4_str_to_ip_proto(sub_ip))
snapshot_verifier = SnapshotVerifier(self, self.BRIDGE,
self.service_manager, 'nuke_ue')
with snapshot_verifier:
pass
def test_enforcement_stats_restart(self):
"""
Adds 2 policies to subscriber, verifies that EnforcementStatsController
reports correct stats to sessiond
Assert:
UPLINK policy matches 128 packets (*34 = 4352 bytes)
DOWNLINK policy matches 256 packets (*34 = 8704 bytes)
No other stats are reported
The controller is then restarted with the same SetupFlowsRequest,
- assert flows keep their packet counts
"""
self.enforcement_stats_controller._report_usage.reset_mock()
fake_controller_setup(
enf_controller=self.enforcement_controller,
enf_stats_controller=self.enforcement_stats_controller,
startup_flow_controller=self.startup_flows_contoller,
)
snapshot_verifier = SnapshotVerifier(
self,
self.BRIDGE,
self.service_manager,
'default_flows',
)
with snapshot_verifier:
pass
imsi = 'IMSI001010000000013'
sub_ip = '192.168.128.74'
num_pkts_tx_match = 128
num_pkts_rx_match = 256
""" Create 2 policy rules for the subscriber """
flow_list1 = [
FlowDescription(
match=FlowMatch(
ip_dst=convert_ipv4_str_to_ip_proto('45.10.0.0/25'),
direction=FlowMatch.UPLINK,
),
action=FlowDescription.PERMIT,
),
]
flow_list2 = [
FlowDescription(
match=FlowMatch(
ip_src=convert_ipv4_str_to_ip_proto('45.10.0.0/24'),
direction=FlowMatch.DOWNLINK,
),
action=FlowDescription.PERMIT,
),
]
policies = [
VersionedPolicy(
rule=PolicyRule(id='tx_match',
priority=3,
flow_list=flow_list1),
version=1,
),
VersionedPolicy(
rule=PolicyRule(id='rx_match',
priority=5,
flow_list=flow_list2),
version=1,
),
]
enf_stat_name = [
imsi + '|tx_match' + '|' + sub_ip + "|" + "1",
imsi + '|rx_match' + '|' + sub_ip + "|" + "1",
]
self.service_manager.session_rule_version_mapper.save_version(
imsi,
convert_ipv4_str_to_ip_proto(sub_ip),
'tx_match',
1,
)
self.service_manager.session_rule_version_mapper.save_version(
imsi,
convert_ipv4_str_to_ip_proto(sub_ip),
'rx_match',
1,
)
""" Setup subscriber, setup table_isolation to fwd pkts """
sub_context = RyuDirectSubscriberContext(
imsi,
sub_ip,
self.enforcement_controller,
self._enforcement_tbl_num,
self.enforcement_stats_controller,
nuke_flows_on_exit=False,
).add_policy(policies[0]).add_policy(policies[1])
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(
sub_context.cfg).build_requests(),
self.testing_controller,
)
""" Create 2 sets of packets, for policry rule1&2 """
pkt_sender = ScapyPacketInjector(self.IFACE)
packet1 = IPPacketBuilder()\
.set_ip_layer('45.10.0.0/20', sub_ip)\
.set_ether_layer(self.MAC_DEST, "00:00:00:00:00:00")\
.build()
packet2 = IPPacketBuilder()\
.set_ip_layer(sub_ip, '45.10.0.0/20')\
.set_ether_layer(self.MAC_DEST, "00:00:00:00:00:00")\
.build()
# =========================== Verification ===========================
snapshot_verifier = SnapshotVerifier(
self,
self.BRIDGE,
self.service_manager,
'initial_flows',
)
""" Send packets, wait until pkts are received by ovs and enf stats """
with isolator, sub_context, snapshot_verifier:
pkt_sender.send(packet1)
pkt_sender.send(packet2)
wait_for_enforcement_stats(
self.enforcement_stats_controller,
enf_stat_name,
)
stats = get_enforcement_stats(
self.enforcement_stats_controller._report_usage.call_args_list, )
self.assertEqual(stats[enf_stat_name[0]].sid, imsi)
self.assertEqual(stats[enf_stat_name[0]].rule_id, "tx_match")
self.assertEqual(stats[enf_stat_name[0]].bytes_rx, 0)
self.assertEqual(
stats[enf_stat_name[0]].bytes_tx,
num_pkts_tx_match * len(packet1),
)
self.assertEqual(stats[enf_stat_name[1]].sid, imsi)
self.assertEqual(stats[enf_stat_name[1]].rule_id, "rx_match")
self.assertEqual(stats[enf_stat_name[1]].bytes_tx, 0)
self.assertEqual(stats[enf_stat_name[1]].bytes_rx, 5120)
# downlink packets will discount ethernet header by default
# so, only count the IP portion
total_bytes_pkt2 = num_pkts_rx_match * len(packet2[IP])
self.assertEqual(stats[enf_stat_name[1]].bytes_rx, total_bytes_pkt2)
# NOTE this value is 8 because the EnforcementStatsController rule
# reporting doesn't reset on clearing flows(lingers from old tests)
self.assertEqual(len(stats), 3)
setup_flows_request = SetupFlowsRequest(
requests=[
ActivateFlowsRequest(
sid=SIDUtils.to_pb(imsi),
ip_addr=sub_ip,
policies=[policies[0], policies[1]],
),
],
epoch=global_epoch,
)
fake_controller_setup(
enf_controller=self.enforcement_controller,
enf_stats_controller=self.enforcement_stats_controller,
startup_flow_controller=self.startup_flows_contoller,
setup_flows_request=setup_flows_request,
)
snapshot_verifier = SnapshotVerifier(
self,
self.BRIDGE,
self.service_manager,
'after_restart',
)
with snapshot_verifier:
pass
def test_url_redirect(self):
"""
Partial redirection test, checks if flows were added properly for url
based redirection.
Assert:
1 Packet is matched
Packet bypass flows are added
Flow learn action is triggered - another flow is added to the table
"""
fake_controller_setup(
enf_controller=self.enforcement_controller,
enf_stats_controller=self.enforcement_stats_controller,
startup_flow_controller=self.startup_flows_contoller,
)
redirect_ips = ["185.128.101.5", "185.128.121.4"]
self.enforcement_controller._redirect_manager._dns_cache.get(
"about.sha.ddih.org",
lambda: redirect_ips,
max_age=42,
)
imsi = 'IMSI010000000088888'
sub_ip = '192.168.128.74'
flow_list = [FlowDescription(match=FlowMatch())]
policy = PolicyRule(
id='redir_test',
priority=3,
flow_list=flow_list,
redirect=RedirectInformation(
support=1,
address_type=2,
server_address="http://about.sha.ddih.org/",
),
)
# ============================ Subscriber ============================
sub_context = RyuDirectSubscriberContext(
imsi,
sub_ip,
self.enforcement_controller,
self._tbl_num,
)
setup_flows_request = SetupFlowsRequest(
requests=[
ActivateFlowsRequest(
sid=SIDUtils.to_pb(imsi),
ip_addr=sub_ip,
policies=[VersionedPolicy(rule=policy, version=1)],
),
],
epoch=global_epoch,
)
fake_controller_setup(
enf_controller=self.enforcement_controller,
enf_stats_controller=self.enforcement_stats_controller,
startup_flow_controller=self.startup_flows_contoller,
setup_flows_request=setup_flows_request,
)
isolator = RyuDirectTableIsolator(
RyuForwardFlowArgsBuilder.from_subscriber(
sub_context.cfg).build_requests(),
self.testing_controller,
)
pkt_sender = ScapyPacketInjector(self.IFACE)
packet = TCPPacketBuilder()\
.set_tcp_layer(42132, 80, 321)\
.set_tcp_flags("S")\
.set_ip_layer('151.42.41.122', sub_ip)\
.set_ether_layer(self.MAC_DEST, "00:00:00:00:00:00")\
.build()
snapshot_verifier = SnapshotVerifier(
self,
self.BRIDGE,
self.service_manager,
)
with isolator, sub_context, snapshot_verifier:
pkt_sender.send(packet)
