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_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_rest_ip_flow(self): """ Sends an ip packet Assert: The correct ip rule is matched No other rule is matched """ isolator = RyuRestTableIsolator( RyuForwardFlowArgsBuilder(self.TID).set_reg_value( DIRECTION_REG, 0x1).build_requests()) flow_query = RyuRestFlowQuery(self.TID, match={ 'eth_type': 2048, DIRECTION_REG: 1 }) pkt_sender = ScapyPacketInjector(self.IFACE) packet = IPPacketBuilder()\ .set_ether_layer(self.MAC_DEST, "00:00:00:00:00:04")\ .set_ip_layer(self.IP_DEST, "10.0.0.0")\ .build() num_pkts = 42 ip_start = flow_query.lookup()[0].packets total_start = _pkt_total(RyuRestFlowQuery(self.TID).lookup()) with isolator: pkt_sender.send(packet, num_pkts) time.sleep(2.5) total_final = _pkt_total(RyuRestFlowQuery(self.TID).lookup()) ip_final = flow_query.lookup()[0].packets self.assertEqual(ip_final - ip_start, num_pkts) self.assertEqual(total_final - total_start, num_pkts)
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_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 get_packets_for_flows(sub, flows): """ Get packets sent from a subscriber to match a set of flows Args: sub (SubscriberContext): subscriber to send packets towards flows ([FlowDescription]): list of flows to send matching packets to Returns: list of scapy packets to send """ packets = [] for flow in flows: packet = IPPacketBuilder()\ .set_ip_layer(flow.match.ipv4_dst, sub.ip)\ .set_ether_layer(MAC_DEST, "00:00:00:00:00:00")\ .build() packets.append(packet) return packets
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_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 _build_default_ip_packet(mac, dst, src): return IPPacketBuilder() \ .set_ip_layer(dst, src) \ .set_ether_layer(mac, "00:00:00:00:00:00") \ .build()
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_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 """ self.enforcement_controller._rule_mapper = RuleIDToNumMapper() self.enforcement_stats_controller._rule_mapper = RuleIDToNumMapper() 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( ip_dst=convert_ipv4_str_to_ip_proto('45.10.0.0/24'), direction=FlowMatch.UPLINK, ), action=FlowDescription.PERMIT, ), FlowDescription( match=FlowMatch( ip_dst=convert_ipv4_str_to_ip_proto('45.11.0.0/24'), direction=FlowMatch.UPLINK, ), action=FlowDescription.PERMIT, ), ] flow_list2 = [ FlowDescription( match=FlowMatch( ip_dst=convert_ipv4_str_to_ip_proto('10.10.1.0/24'), direction=FlowMatch.UPLINK, ), action=FlowDescription.PERMIT, ), ] policies1 = [ VersionedPolicy( rule=PolicyRule(id='sub1_rule_temp', priority=2, flow_list=flow_list1), version=1, ), ] policies2 = [ VersionedPolicy( rule=PolicyRule(id='sub2_rule_keep', priority=3, flow_list=flow_list2), version=1, ), ] enf_stat_name = [ imsi1 + '|sub1_rule_temp' + '|' + sub2_ip, imsi2 + '|sub2_rule_keep' + '|' + sub2_ip, ] self.service_manager.session_rule_version_mapper.save_version( imsi1, convert_ipv4_str_to_ip_proto(sub2_ip), 'sub1_rule_temp', 1, ) self.service_manager.session_rule_version_mapper.save_version( imsi2, convert_ipv4_str_to_ip_proto(sub2_ip), 'sub2_rule_keep', 1, ) setup_flows_request = SetupFlowsRequest( requests=[ ActivateFlowsRequest( sid=SIDUtils.to_pb(imsi1), ip_addr=sub2_ip, policies=policies1, ), ActivateFlowsRequest( sid=SIDUtils.to_pb(imsi2), ip_addr=sub2_ip, policies=policies2, ), ], epoch=global_epoch, ) # Simulate clearing the dict self.service_manager.session_rule_version_mapper\ ._version_by_imsi_and_rule = {} 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() snapshot_verifier = SnapshotVerifier( self, self.BRIDGE, self.service_manager, 'before_restart', ) with isolator, snapshot_verifier: pkt_sender.send(packets) flow_list1 = [ FlowDescription( match=FlowMatch( ip_dst=convert_ipv4_str_to_ip_proto('24.10.0.0/24'), direction=FlowMatch.UPLINK, ), action=FlowDescription.PERMIT, ), ] policies = [ VersionedPolicy( rule=PolicyRule(id='sub2_new_rule', priority=2, flow_list=flow_list1), version=1, ), VersionedPolicy( rule=PolicyRule(id='sub2_rule_keep', priority=3, flow_list=flow_list2), version=1, ), ] enf_stat_name = [ imsi2 + '|sub2_new_rule' + '|' + sub2_ip + "|" + "1", imsi2 + '|sub2_rule_keep' + '|' + sub2_ip + "|" + "1", ] setup_flows_request = SetupFlowsRequest( requests=[ ActivateFlowsRequest( sid=SIDUtils.to_pb(imsi2), ip_addr=sub2_ip, policies=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, ) snapshot_verifier = SnapshotVerifier( self, self.BRIDGE, self.service_manager, 'after_restart', ) with 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_w_packets', ) with snapshot_verifier: pass
def _make_default_pkt(mac_dest, dst, src): return IPPacketBuilder() \ .set_ip_layer(dst, src) \ .set_ether_layer(mac_dest, "00:00:00:00:00:00") \ .build()
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_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 _make_default_pkt(self, dst, src): return IPPacketBuilder()\ .set_ip_layer(dst, src)\ .set_ether_layer(self.MAC_DEST, "00:00:00:00:00:00")\ .build()