#!/usr/bin/env python3 from __future__ import print_function import binascii import random import socket import unittest import time from scapy.packet import Raw from scapy.layers.l2 import Ether from scapy.layers.inet import IP, TCP, UDP from scapy.layers.inet6 import IPv6 from scapy.contrib.lacp import SlowProtocol, LACP from config import config from framework import VppTestCase from asfframework import ( tag_fixme_vpp_workers, tag_fixme_ubuntu2204, tag_fixme_debian11, tag_run_solo, is_distro_ubuntu2204, is_distro_debian11, VppTestRunner, ) from vpp_object import VppObject from util import ppp from ipfix import IPFIX, Set, Template, Data, IPFIXDecoder from vpp_ip_route import VppIpRoute, VppRoutePath from vpp_papi.macaddress import mac_ntop from socket import inet_ntop from vpp_papi import VppEnum from vpp_sub_interface import VppDot1ADSubint TMPL_COMMON_FIELD_COUNT = 6 TMPL_L2_FIELD_COUNT = 3 TMPL_L3_FIELD_COUNT = 4 TMPL_L4_FIELD_COUNT = 3 IPFIX_TCP_FLAGS_ID = 6 IPFIX_SRC_TRANS_PORT_ID = 7 IPFIX_DST_TRANS_PORT_ID = 11 IPFIX_SRC_IP4_ADDR_ID = 8 IPFIX_DST_IP4_ADDR_ID = 12 IPFIX_FLOW_DIRECTION_ID = 61 TCP_F_FIN = 0x01 TCP_F_SYN = 0x02 TCP_F_RST = 0x04 TCP_F_PSH = 0x08 TCP_F_ACK = 0x10 TCP_F_URG = 0x20 TCP_F_ECE = 0x40 TCP_F_CWR = 0x80 class VppCFLOW(VppObject): """CFLOW object for IPFIX exporter and Flowprobe feature""" def __init__( self, test, intf="pg2", active=0, passive=0, timeout=100, mtu=1024, datapath="l2", layer="l2 l3 l4", direction="tx", ): self._test = test self._intf = intf self._intf_obj = getattr(self._test, intf) self._active = active if passive == 0 or passive < active: self._passive = active + 1 else: self._passive = passive self._datapath = datapath # l2 ip4 ip6 self._collect = layer # l2 l3 l4 self._direction = direction # rx tx both self._timeout = timeout self._mtu = mtu self._configured = False def add_vpp_config(self): self.enable_exporter() l2_flag = 0 l3_flag = 0 l4_flag = 0 if "l2" in self._collect.lower(): l2_flag = VppEnum.vl_api_flowprobe_record_flags_t.FLOWPROBE_RECORD_FLAG_L2 if "l3" in self._collect.lower(): l3_flag = VppEnum.vl_api_flowprobe_record_flags_t.FLOWPROBE_RECORD_FLAG_L3 if "l4" in self._collect.lower(): l4_flag = VppEnum.vl_api_flowprobe_record_flags_t.FLOWPROBE_RECORD_FLAG_L4 self._test.vapi.flowprobe_set_params( record_flags=(l2_flag | l3_flag | l4_flag), active_timer=self._active, passive_timer=self._passive, ) self.enable_flowprobe_feature() self._test.vapi.cli("ipfix flush") self._configured = True def remove_vpp_config(self): self.disable_exporter() self.disable_flowprobe_feature() self._test.vapi.cli("ipfix flush") self._configured = False def enable_exporter(self): self._test.vapi.set_ipfix_exporter( collector_address=self._test.pg0.remote_ip4, src_address=self._test.pg0.local_ip4, path_mtu=self._mtu, template_interval=self._timeout, ) def _enable_disable_flowprobe_feature(self, is_add): which_map = { "l2": VppEnum.vl_api_flowprobe_which_t.FLOWPROBE_WHICH_L2, "ip4": VppEnum.vl_api_flowprobe_which_t.FLOWPROBE_WHICH_IP4, "ip6": VppEnum.vl_api_flowprobe_which_t.FLOWPROBE_WHICH_IP6, } direction_map = { "rx": VppEnum.vl_api_flowprobe_direction_t.FLOWPROBE_DIRECTION_RX, "tx": VppEnum.vl_api_flowprobe_direction_t.FLOWPROBE_DIRECTION_TX, "both": VppEnum.vl_api_flowprobe_direction_t.FLOWPROBE_DIRECTION_BOTH, } self._test.vapi.flowprobe_interface_add_del( is_add=is_add, which=which_map[self._datapath], direction=direction_map[self._direction], sw_if_index=self._intf_obj.sw_if_index, ) def enable_flowprobe_feature(self): self._enable_disable_flowprobe_feature(is_add=True) def disable_exporter(self): self._test.vapi.cli("set ipfix exporter collector 0.0.0.0") def disable_flowprobe_feature(self): self._enable_disable_flowprobe_feature(is_add=False) def object_id(self): return "ipfix-collector-%s-%s" % (self._src, self.dst) def query_vpp_config(self): return self._configured def verify_templates(self, decoder=None, timeout=1, count=3, field_count_in=None): templates = [] self._test.assertIn(count, (1, 2, 3)) for _ in range(count): p = self._test.wait_for_cflow_packet(self._test.collector, 2, timeout) self._test.assertTrue(p.haslayer(IPFIX)) self._test.assertTrue(p.haslayer(Template)) if decoder is not None: templates.append(p[Template].templateID) decoder.add_template(p.getlayer(Template)) if field_count_in is not None: self._test.assertIn(p[Template].fieldCount, field_count_in) return templates class MethodHolder(VppTestCase): """Flow-per-packet plugin: test L2, IP4, IP6 reporting""" # Test variables debug_print = False max_number_of_packets = 10 pkts = [] @classmethod def setUpClass(cls): """ Perform standard class setup (defined by class method setUpClass in class VppTestCase) before running the test case, set test case related variables and configure VPP. """ super(MethodHolder, cls).setUpClass() if (is_distro_ubuntu2204 == True or is_distro_debian11 == True) and not hasattr( cls, "vpp" ): return try: # Create pg interfaces cls.create_pg_interfaces(range(9)) # Packet sizes cls.pg_if_packet_sizes = [64, 512, 1518, 9018] # Create BD with MAC learning and unknown unicast flooding disabled # and put interfaces to this BD cls.vapi.bridge_domain_add_del_v2( bd_id=1, uu_flood=1, learn=1, flood=1, forward=1, is_add=1 ) cls.vapi.sw_interface_set_l2_bridge( rx_sw_if_index=cls.pg1._sw_if_index, bd_id=1 ) cls.vapi.sw_interface_set_l2_bridge( rx_sw_if_index=cls.pg2._sw_if_index, bd_id=1 ) # Set up all interfaces for i in cls.pg_interfaces: i.admin_up() cls.pg0.config_ip4() cls.pg0.configure_ipv4_neighbors() cls.collector = cls.pg0 cls.pg1.config_ip4() cls.pg1.resolve_arp() cls.pg2.config_ip4() cls.pg2.resolve_arp() cls.pg3.config_ip4() cls.pg3.resolve_arp() cls.pg4.config_ip4() cls.pg4.resolve_arp() cls.pg7.config_ip4() cls.pg8.config_ip4() cls.pg8.configure_ipv4_neighbors() cls.pg5.config_ip6() cls.pg5.resolve_ndp() cls.pg5.disable_ipv6_ra() cls.pg6.config_ip6() cls.pg6.resolve_ndp() cls.pg6.disable_ipv6_ra() except Exception: super(MethodHolder, cls).tearDownClass() raise @classmethod def tearDownClass(cls): super(MethodHolder, cls).tearDownClass() def create_stream( self, src_if=None, dst_if=None, packets=None, size=None, ip_ver="v4" ): """Create a packet stream to tickle the plugin :param VppInterface src_if: Source interface for packet stream :param VppInterface src_if: Dst interface for packet stream """ if src_if is None: src_if = self.pg1 if dst_if is None: dst_if = self.pg2 self.pkts = [] if packets is None: packets = random.randint(1, self.max_number_of_packets) pkt_size = size for p in range(0, packets): if size is None: pkt_size = random.choice(self.pg_if_packet_sizes) info = self.create_packet_info(src_if, dst_if) payload = self.info_to_payload(info) p = Ether(src=src_if.remote_mac, dst=src_if.local_mac) if ip_ver == "v4": p /= IP(src=src_if.remote_ip4, dst=dst_if.remote_ip4) else: p /= IPv6(src=src_if.remote_ip6, dst=dst_if.remote_ip6) p /= UDP(sport=1234, dport=4321) p /= Raw(payload) info.data = p.copy() self.extend_packet(p, pkt_size) self.pkts.append(p) def verify_cflow_data(self, decoder, capture, cflow): octets = 0 packets = 0 for p in capture: octets += p[IP].len packets += 1 if cflow.haslayer(Data): data = decoder.decode_data_set(cflow.getlayer(Set)) for record in data: self.assertEqual(int(binascii.hexlify(record[1]), 16), octets) self.assertEqual(int(binascii.hexlify(record[2]), 16), packets) def send_packets(self, src_if=None, dst_if=None): if src_if is None: src_if = self.pg1 if dst_if is None: dst_if = self.pg2 self.pg_enable_capture([dst_if]) src_if.add_stream(self.pkts) self.pg_start() return dst_if.get_capture(len(self.pkts)) def verify_cflow_data_detail( self, decoder, capture, cflow, data_set={1: "octets", 2: "packets"}, ip_ver="v4", field_count=None, ): if self.debug_print: print(capture[0].show()) if cflow.haslayer(Data): data = decoder.decode_data_set(cflow.getlayer(Set)) if self.debug_print: print(data) if ip_ver == "v4": ip_layer = capture[0][IP] if capture[0].haslayer(IP) else None else: ip_layer = capture[0][IPv6] if capture[0].haslayer(IPv6) else None if data_set is not None: for record in data: # skip flow if ingress/egress interface is 0 if int(binascii.hexlify(record[10]), 16) == 0: continue if int(binascii.hexlify(record[14]), 16) == 0: continue for field in data_set: value = data_set[field] if value == "octets": value = ip_layer.len if ip_ver == "v6": value += 40 # ??? is this correct elif value == "packets": value = 1 elif value == "src_ip": if ip_ver == "v4": ip = socket.inet_pton(socket.AF_INET, ip_layer.src) else: ip = socket.inet_pton(socket.AF_INET6, ip_layer.src) value = int(binascii.hexlify(ip), 16) elif value == "dst_ip": if ip_ver == "v4": ip = socket.inet_pton(socket.AF_INET, ip_layer.dst) else: ip = socket.inet_pton(socket.AF_INET6, ip_layer.dst) value = int(binascii.hexlify(ip), 16) elif value == "sport": value = int(capture[0][UDP].sport) elif value == "dport": value = int(capture[0][UDP].dport) self.assertEqual( int(binascii.hexlify(record[field]), 16), value ) if field_count is not None: for record in data: self.assertEqual(len(record), field_count) def verify_cflow_data_notimer(self, decoder, capture, cflows): idx = 0 for cflow in cflows: if cflow.haslayer(Data): data = decoder.decode_data_set(cflow.getlayer(Set)) else: raise Exception("No CFLOW data") for rec in data: p = capture[idx] idx += 1 self.assertEqual(p[IP].len, int(binascii.hexlify(rec[1]), 16)) self.assertEqual(1, int(binascii.hexlify(rec[2]), 16)) self.assertEqual(len(capture), idx) def wait_for_cflow_packet(self, collector_intf, set_id=2, timeout=1): """wait for CFLOW packet and verify its correctness :param timeout: how long to wait """ self.logger.info("IPFIX: Waiting for CFLOW packet") # self.logger.debug(self.vapi.ppcli("show flow table")) p = collector_intf.wait_for_packet(timeout=timeout) self.assertEqual(p[Set].setID, set_id) # self.logger.debug(self.vapi.ppcli("show flow table")) self.logger.debug(ppp("IPFIX: Got packet:", p)) return p @tag_run_solo @tag_fixme_vpp_workers @tag_fixme_ubuntu2204 @tag_fixme_debian11 class Flowprobe(MethodHolder): """Template verification, timer tests""" @classmethod def setUpClass(cls): super(Flowprobe, cls).setUpClass() @classmethod def tearDownClass(cls): super(Flowprobe, cls).tearDownClass() def test_0001(self): """timer less than template timeout""" self.logger.info("FFP_TEST_START_0001") self.pg_enable_capture(self.pg_interfaces) self.pkts = [] ipfix = VppCFLOW(test=self, active=2) ipfix.add_vpp_config() ipfix_decoder = IPFIXDecoder() # template packet should arrive immediately templates = ipfix.verify_templates(ipfix_decoder) self.create_stream(packets=1) self.send_packets() capture = self.pg2.get_capture(1) # make sure the one packet we expect actually showed up cflow = self.wait_for_cflow_packet(self.collector, templates[1], 15) self.verify_cflow_data(ipfix_decoder, capture, cflow) ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0001") @unittest.skipUnless( config.extended, "Test is unstable (assertion error, needs to be fixed" ) def test_0002(self): """timer greater than template timeout [UNSTABLE, FIX ME]""" self.logger.info("FFP_TEST_START_0002") self.pg_enable_capture(self.pg_interfaces) self.pkts = [] ipfix = VppCFLOW(test=self, timeout=3, active=4) ipfix.add_vpp_config() ipfix_decoder = IPFIXDecoder() # template packet should arrive immediately ipfix.verify_templates() self.create_stream(packets=2) self.send_packets() capture = self.pg2.get_capture(2) # next set of template packet should arrive after 20 seconds # template packet should arrive within 20 s templates = ipfix.verify_templates(ipfix_decoder, timeout=5) # make sure the one packet we expect actually showed up cflow = self.wait_for_cflow_packet(self.collector, templates[1], 15) self.verify_cflow_data(ipfix_decoder, capture, cflow) ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0002") def test_cflow_packet(self): """verify cflow packet fields""" self.logger.info("FFP_TEST_START_0000") self.pg_enable_capture(self.pg_interfaces) self.pkts = [] ipfix = VppCFLOW( test=self, intf="pg8", datapath="ip4", layer="l2 l3 l4", active=2 ) ipfix.add_vpp_config() route_9001 = VppIpRoute( self, "9.0.0.0", 24, [VppRoutePath(self.pg8._remote_hosts[0].ip4, self.pg8.sw_if_index)], ) route_9001.add_vpp_config() ipfix_decoder = IPFIXDecoder() templates = ipfix.verify_templates(ipfix_decoder, count=1) self.pkts = [ ( Ether(dst=self.pg7.local_mac, src=self.pg7.remote_mac) / IP(src=self.pg7.remote_ip4, dst="9.0.0.100") / TCP(sport=1234, dport=4321, flags=80) / Raw(b"\xa5" * 100) ) ] nowUTC = int(time.time()) nowUNIX = nowUTC + 2208988800 self.send_packets(src_if=self.pg7, dst_if=self.pg8) cflow = self.wait_for_cflow_packet(self.collector, templates[0], 10) self.collector.get_capture(2) if cflow[0].haslayer(IPFIX): self.assertEqual(cflow[IPFIX].version, 10) self.assertEqual(cflow[IPFIX].observationDomainID, 1) self.assertEqual(cflow[IPFIX].sequenceNumber, 0) self.assertAlmostEqual(cflow[IPFIX].exportTime, nowUTC, delta=5) if cflow.haslayer(Data): record = ipfix_decoder.decode_data_set(cflow[0].getlayer(Set))[0] # ingress interface self.assertEqual(int(binascii.hexlify(record[10]), 16), 8) # egress interface self.assertEqual(int(binascii.hexlify(record[14]), 16), 9) # direction self.assertEqual(int(binascii.hexlify(record[61]), 16), 1) # packets self.assertEqual(int(binascii.hexlify(record[2]), 16), 1) # src mac self.assertEqual(mac_ntop(record[56]), self.pg8.local_mac) # dst mac self.assertEqual(mac_ntop(record[80]), self.pg8.remote_mac) flowTimestamp = int(binascii.hexlify(record[156]), 16) >> 32 # flow start timestamp self.assertAlmostEqual(flowTimestamp, nowUNIX, delta=1) flowTimestamp = int(binascii.hexlify(record[157]), 16) >> 32 # flow end timestamp self.assertAlmostEqual(flowTimestamp, nowUNIX, delta=1) # ethernet type self.assertEqual(int(binascii.hexlify(record[256]), 16), 8) # src ip self.assertEqual(inet_ntop(socket.AF_INET, record[8]), self.pg7.remote_ip4) # dst ip self.assertEqual(inet_ntop(socket.AF_INET, record[12]), "9.0.0.100") # protocol (TCP) self.assertEqual(int(binascii.hexlify(record[4]), 16), 6) # src port self.assertEqual(int(binascii.hexlify(record[7]), 16), 1234) # dst port self.assertEqual(int(binascii.hexlify(record[11]), 16), 4321) # tcp flags self.assertEqual(int(binascii.hexlify(record[6]), 16), 80) ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0000") def test_flow_entry_reuse(self): """Verify flow entry reuse doesn't accumulate meta info""" self.pg_enable_capture(self.pg_interfaces) self.pkts = [] # enable ip4 datapath for an interface # set active and passive timers ipfix = VppCFLOW( test=self, active=2, passive=3, intf="pg3", layer="l3 l4", datapath="ip4", direction="rx", mtu=100, ) ipfix.add_vpp_config() # template packet should arrive immediately ipfix_decoder = IPFIXDecoder() templates = ipfix.verify_templates(ipfix_decoder, count=1) # make a tcp packet self.pkts = [ ( Ether(src=self.pg3.remote_mac, dst=self.pg3.local_mac) / IP(src=self.pg3.remote_ip4, dst=self.pg4.remote_ip4) / TCP(sport=1234, dport=4321) / Raw(b"\xa5" * 50) ) ] # send the tcp packet two times, each time with new set of flags tcp_flags = ( TCP_F_SYN | TCP_F_ACK, TCP_F_RST | TCP_F_PSH, ) for f in tcp_flags: self.pkts[0][TCP].flags = f capture = self.send_packets(src_if=self.pg3, dst_if=self.pg4) # verify meta info - packet/octet delta and tcp flags cflow = self.wait_for_cflow_packet(self.collector, templates[0], timeout=6) self.verify_cflow_data(ipfix_decoder, capture, cflow) self.verify_cflow_data_detail( ipfix_decoder, capture, cflow, { IPFIX_TCP_FLAGS_ID: f, IPFIX_SRC_TRANS_PORT_ID: 1234, IPFIX_DST_TRANS_PORT_ID: 4321, }, ) self.collector.get_capture(3) # cleanup ipfix.remove_vpp_config() def test_interface_dump(self): """Dump interfaces with IPFIX flow record generation enabled""" self.logger.info("FFP_TEST_START_0003") # Enable feature for 3 interfaces ipfix1 = VppCFLOW(test=self, intf="pg1", datapath="l2", direction="rx") ipfix1.add_vpp_config() ipfix2 = VppCFLOW(test=self, intf="pg2", datapath="ip4", direction="tx") ipfix2.enable_flowprobe_feature() ipfix3 = VppCFLOW(test=self, intf="pg3", datapath="ip6", direction="both") ipfix3.enable_flowprobe_feature() # When request "all", dump should contain all enabled interfaces dump = self.vapi.flowprobe_interface_dump() self.assertEqual(len(dump), 3) # Verify 1st interface self.assertEqual(dump[0].sw_if_index, self.pg1.sw_if_index) self.assertEqual( dump[0].which, VppEnum.vl_api_flowprobe_which_t.FLOWPROBE_WHICH_L2 ) self.assertEqual( dump[0].direction, VppEnum.vl_api_flowprobe_direction_t.FLOWPROBE_DIRECTION_RX, ) # Verify 2nd interface self.assertEqual(dump[1].sw_if_index, self.pg2.sw_if_index) self.assertEqual( dump[1].which, VppEnum.vl_api_flowprobe_which_t.FLOWPROBE_WHICH_IP4 ) self.assertEqual( dump[1].direction, VppEnum.vl_api_flowprobe_direction_t.FLOWPROBE_DIRECTION_TX, ) # Verify 3rd interface self.assertEqual(dump[2].sw_if_index, self.pg3.sw_if_index) self.assertEqual( dump[2].which, VppEnum.vl_api_flowprobe_which_t.FLOWPROBE_WHICH_IP6 ) self.assertEqual( dump[2].direction, VppEnum.vl_api_flowprobe_direction_t.FLOWPROBE_DIRECTION_BOTH, ) # When request 2nd interface, dump should contain only the specified interface dump = self.vapi.flowprobe_interface_dump(sw_if_index=self.pg2.sw_if_index) self.assertEqual(len(dump), 1) # Verify 2nd interface self.assertEqual(dump[0].sw_if_index, self.pg2.sw_if_index) self.assertEqual( dump[0].which, VppEnum.vl_api_flowprobe_which_t.FLOWPROBE_WHICH_IP4 ) self.assertEqual( dump[0].direction, VppEnum.vl_api_flowprobe_direction_t.FLOWPROBE_DIRECTION_TX, ) # When request 99th interface, dump should be empty dump = self.vapi.flowprobe_interface_dump(sw_if_index=99) self.assertEqual(len(dump), 0) ipfix1.remove_vpp_config() ipfix2.remove_vpp_config() ipfix3.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0003") def test_get_params(self): """Get IPFIX flow record generation parameters""" self.logger.info("FFP_TEST_START_0004") # Enable feature for an interface with custom parameters ipfix = VppCFLOW(test=self, active=20, passive=40, layer="l2 l3 l4") ipfix.add_vpp_config() # Get and verify parameters params = self.vapi.flowprobe_get_params() self.assertEqual(params.active_timer, 20) self.assertEqual(params.passive_timer, 40) record_flags = VppEnum.vl_api_flowprobe_record_flags_t.FLOWPROBE_RECORD_FLAG_L2 record_flags |= VppEnum.vl_api_flowprobe_record_flags_t.FLOWPROBE_RECORD_FLAG_L3 record_flags |= VppEnum.vl_api_flowprobe_record_flags_t.FLOWPROBE_RECORD_FLAG_L4 self.assertEqual(params.record_flags, record_flags) ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0004") class DatapathTestsHolder(object): """collect information on Ethernet, IP4 and IP6 datapath (no timers)""" @classmethod def setUpClass(cls): super(DatapathTestsHolder, cls).setUpClass() @classmethod def tearDownClass(cls): super(DatapathTestsHolder, cls).tearDownClass() def test_templatesL2(self): """verify template on L2 datapath""" self.logger.info("FFP_TEST_START_0000") self.pg_enable_capture(self.pg_interfaces) ipfix = VppCFLOW( test=self, intf=self.intf1, layer="l2", direction=self.direction ) ipfix.add_vpp_config() # template packet should arrive immediately self.vapi.ipfix_flush() ipfix.verify_templates(timeout=3, count=1) self.collector.get_capture(1) ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0000") def test_L2onL2(self): """L2 data on L2 datapath""" self.logger.info("FFP_TEST_START_0001") self.pg_enable_capture(self.pg_interfaces) self.pkts = [] ipfix = VppCFLOW( test=self, intf=self.intf1, layer="l2", direction=self.direction ) ipfix.add_vpp_config() ipfix_decoder = IPFIXDecoder() # template packet should arrive immediately templates = ipfix.verify_templates(ipfix_decoder, count=1) self.create_stream(packets=1) capture = self.send_packets() # make sure the one packet we expect actually showed up self.vapi.ipfix_flush() cflow = self.wait_for_cflow_packet(self.collector, templates[0]) self.verify_cflow_data_detail( ipfix_decoder, capture, cflow, {2: "packets", 256: 8, 61: (self.direction == "tx")}, ) self.collector.get_capture(2) ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0001") def test_L3onL2(self): """L3 data on L2 datapath""" self.logger.info("FFP_TEST_START_0002") self.pg_enable_capture(self.pg_interfaces) self.pkts = [] ipfix = VppCFLOW( test=self, intf=self.intf1, layer="l3", direction=self.direction ) ipfix.add_vpp_config() ipfix_decoder = IPFIXDecoder() # template packet should arrive immediately templates = ipfix.verify_templates(ipfix_decoder, count=2) self.create_stream(packets=1) capture = self.send_packets() # make sure the one packet we expect actually showed up self.vapi.ipfix_flush() cflow = self.wait_for_cflow_packet(self.collector, templates[0]) self.verify_cflow_data_detail( ipfix_decoder, capture, cflow, { 2: "packets", 4: 17, 8: "src_ip", 12: "dst_ip", 61: (self.direction == "tx"), }, ) self.collector.get_capture(3) ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0002") def test_L234onL2(self): """L2/3/4 data on L2 datapath""" self.pg_enable_capture(self.pg_interfaces) self.pkts = [] ipfix = VppCFLOW( test=self, intf=self.intf1, layer="l2 l3 l4", direction=self.direction ) ipfix.add_vpp_config() ipfix_decoder = IPFIXDecoder() # template packet should arrive immediately tmpl_l2_field_count = TMPL_COMMON_FIELD_COUNT + TMPL_L2_FIELD_COUNT tmpl_ip_field_count = ( TMPL_COMMON_FIELD_COUNT + TMPL_L2_FIELD_COUNT + TMPL_L3_FIELD_COUNT + TMPL_L4_FIELD_COUNT ) templates = ipfix.verify_templates( ipfix_decoder, count=3, field_count_in=(tmpl_l2_field_count, tmpl_ip_field_count), ) # verify IPv4 and IPv6 flows for ip_ver in ("v4", "v6"): self.create_stream(packets=1, ip_ver=ip_ver) capture = self.send_packets() # make sure the one packet we expect actually showed up self.vapi.ipfix_flush() cflow = self.wait_for_cflow_packet( self.collector, templates[1 if ip_ver == "v4" else 2] ) src_ip_id = 8 if ip_ver == "v4" else 27 dst_ip_id = 12 if ip_ver == "v4" else 28 self.verify_cflow_data_detail( ipfix_decoder, capture, cflow, { 2: "packets", 256: 8 if ip_ver == "v4" else 56710, 4: 17, 7: "sport", 11: "dport", src_ip_id: "src_ip", dst_ip_id: "dst_ip", 61: (self.direction == "tx"), }, ip_ver=ip_ver, field_count=tmpl_ip_field_count, ) # verify non-IP flow self.pkts = [ ( Ether(dst=self.pg2.local_mac, src=self.pg1.remote_mac) / SlowProtocol() / LACP() ) ] capture = self.send_packets() # make sure the one packet we expect actually showed up self.vapi.ipfix_flush() cflow = self.wait_for_cflow_packet(self.collector, templates[0]) self.verify_cflow_data_detail( ipfix_decoder, capture, cflow, {2: "packets", 256: 2440, 61: (self.direction == "tx")}, field_count=tmpl_l2_field_count, ) self.collector.get_capture(6) ipfix.remove_vpp_config() def test_L4onL2(self): """L4 data on L2 datapath""" self.logger.info("FFP_TEST_START_0003") self.pg_enable_capture(self.pg_interfaces) self.pkts = [] ipfix = VppCFLOW( test=self, intf=self.intf1, layer="l4", direction=self.direction ) ipfix.add_vpp_config() ipfix_decoder = IPFIXDecoder() # template packet should arrive immediately templates = ipfix.verify_templates(ipfix_decoder, count=2) self.create_stream(packets=1) capture = self.send_packets() # make sure the one packet we expect actually showed up self.vapi.ipfix_flush() cflow = self.wait_for_cflow_packet(self.collector, templates[0]) self.verify_cflow_data_detail( ipfix_decoder, capture, cflow, {2: "packets", 7: "sport", 11: "dport", 61: (self.direction == "tx")}, ) self.collector.get_capture(3) ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0003") def test_templatesIp4(self): """verify templates on IP4 datapath""" self.logger.info("FFP_TEST_START_0000") self.pg_enable_capture(self.pg_interfaces) ipfix = VppCFLOW( test=self, intf=self.intf1, datapath="ip4", direction=self.direction ) ipfix.add_vpp_config() # template packet should arrive immediately self.vapi.ipfix_flush() ipfix.verify_templates(timeout=3, count=1) self.collector.get_capture(1) ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0000") def test_L2onIP4(self): """L2 data on IP4 datapath""" self.logger.info("FFP_TEST_START_0001") self.pg_enable_capture(self.pg_interfaces) self.pkts = [] ipfix = VppCFLOW( test=self, intf=self.intf2, layer="l2", datapath="ip4", direction=self.direction, ) ipfix.add_vpp_config() ipfix_decoder = IPFIXDecoder() # template packet should arrive immediately templates = ipfix.verify_templates(ipfix_decoder, count=1) self.create_stream(src_if=self.pg3, dst_if=self.pg4, packets=1) capture = self.send_packets(src_if=self.pg3, dst_if=self.pg4) # make sure the one packet we expect actually showed up self.vapi.ipfix_flush() cflow = self.wait_for_cflow_packet(self.collector, templates[0]) self.verify_cflow_data_detail( ipfix_decoder, capture, cflow, {2: "packets", 256: 8, 61: (self.direction == "tx")}, ) # expected two templates and one cflow packet self.collector.get_capture(2) ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0001") def test_L3onIP4(self): """L3 data on IP4 datapath""" self.logger.info("FFP_TEST_START_0002") self.pg_enable_capture(self.pg_interfaces) self.pkts = [] ipfix = VppCFLOW( test=self, intf=self.intf2, layer="l3", datapath="ip4", direction=self.direction, ) ipfix.add_vpp_config() ipfix_decoder = IPFIXDecoder() # template packet should arrive immediately templates = ipfix.verify_templates(ipfix_decoder, count=1) self.create_stream(src_if=self.pg3, dst_if=self.pg4, packets=1) capture = self.send_packets(src_if=self.pg3, dst_if=self.pg4) # make sure the one packet we expect actually showed up self.vapi.ipfix_flush() cflow = self.wait_for_cflow_packet(self.collector, templates[0]) self.verify_cflow_data_detail( ipfix_decoder, capture, cflow, { 1: "octets", 2: "packets", 8: "src_ip", 12: "dst_ip", 61: (self.direction == "tx"), }, ) # expected two templates and one cflow packet self.collector.get_capture(2) ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0002") def test_L4onIP4(self): """L4 data on IP4 datapath""" self.logger.info("FFP_TEST_START_0003") self.pg_enable_capture(self.pg_interfaces) self.pkts = [] ipfix = VppCFLOW( test=self, intf=self.intf2, layer="l4", datapath="ip4", direction=self.direction, ) ipfix.add_vpp_config() ipfix_decoder = IPFIXDecoder() # template packet should arrive immediately templates = ipfix.verify_templates(ipfix_decoder, count=1) self.create_stream(src_if=self.pg3, dst_if=self.pg4, packets=1) capture = self.send_packets(src_if=self.pg3, dst_if=self.pg4) # make sure the one packet we expect actually showed up self.vapi.ipfix_flush() cflow = self.wait_for_cflow_packet(self.collector, templates[0]) self.verify_cflow_data_detail( ipfix_decoder, capture, cflow, {2: "packets", 7: "sport", 11: "dport", 61: (self.direction == "tx")}, ) # expected two templates and one cflow packet self.collector.get_capture(2) ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0003") def test_templatesIP6(self): """verify templates on IP6 datapath""" self.logger.info("FFP_TEST_START_0000") self.pg_enable_capture(self.pg_interfaces) ipfix = VppCFLOW( test=self, intf=self.intf1, datapath="ip6", direction=self.direction ) ipfix.add_vpp_config() # template packet should arrive immediately ipfix.verify_templates(count=1) self.collector.get_capture(1) ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0000") def test_L2onIP6(self): """L2 data on IP6 datapath""" self.logger.info("FFP_TEST_START_0001") self.pg_enable_capture(self.pg_interfaces) self.pkts = [] ipfix = VppCFLOW( test=self, intf=self.intf3, layer="l2", datapath="ip6", direction=self.direction, ) ipfix.add_vpp_config() ipfix_decoder = IPFIXDecoder() # template packet should arrive immediately templates = ipfix.verify_templates(ipfix_decoder, count=1) self.create_stream(src_if=self.pg5, dst_if=self.pg6, packets=1, ip_ver="IPv6") capture = self.send_packets(src_if=self.pg5, dst_if=self.pg6) # make sure the one packet we expect actually showed up self.vapi.ipfix_flush() cflow = self.wait_for_cflow_packet(self.collector, templates[0]) self.verify_cflow_data_detail( ipfix_decoder, capture, cflow, {2: "packets", 256: 56710, 61: (self.direction == "tx")}, ip_ver="v6", ) # expected two templates and one cflow packet self.collector.get_capture(2) ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0001") def test_L3onIP6(self): """L3 data on IP6 datapath""" self.logger.info("FFP_TEST_START_0002") self.pg_enable_capture(self.pg_interfaces) self.pkts = [] ipfix = VppCFLOW( test=self, intf=self.intf3, layer="l3", datapath="ip6", direction=self.direction, ) ipfix.add_vpp_config() ipfix_decoder = IPFIXDecoder() # template packet should arrive immediately templates = ipfix.verify_templates(ipfix_decoder, count=1) self.create_stream(src_if=self.pg5, dst_if=self.pg6, packets=1, ip_ver="IPv6") capture = self.send_packets(src_if=self.pg5, dst_if=self.pg6) # make sure the one packet we expect actually showed up self.vapi.ipfix_flush() cflow = self.wait_for_cflow_packet(self.collector, templates[0]) self.verify_cflow_data_detail( ipfix_decoder, capture, cflow, {2: "packets", 27: "src_ip", 28: "dst_ip", 61: (self.direction == "tx")}, ip_ver="v6", ) # expected two templates and one cflow packet self.collector.get_capture(2) ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0002") def test_L4onIP6(self): """L4 data on IP6 datapath""" self.logger.info("FFP_TEST_START_0003") self.pg_enable_capture(self.pg_interfaces) self.pkts = [] ipfix = VppCFLOW( test=self, intf=self.intf3, layer="l4", datapath="ip6", direction=self.direction, ) ipfix.add_vpp_config() ipfix_decoder = IPFIXDecoder() # template packet should arrive immediately templates = ipfix.verify_templates(ipfix_decoder, count=1) self.create_stream(src_if=self.pg5, dst_if=self.pg6, packets=1, ip_ver="IPv6") capture = self.send_packets(src_if=self.pg5, dst_if=self.pg6) # make sure the one packet we expect actually showed up self.vapi.ipfix_flush() cflow = self.wait_for_cflow_packet(self.collector, templates[0]) self.verify_cflow_data_detail( ipfix_decoder, capture, cflow, {2: "packets", 7: "sport", 11: "dport", 61: (self.direction == "tx")}, ip_ver="v6", ) # expected two templates and one cflow packet self.collector.get_capture(2) ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0003") def test_0001(self): """no timers, one CFLOW packet, 9 Flows inside""" self.logger.info("FFP_TEST_START_0001") self.pg_enable_capture(self.pg_interfaces) self.pkts = [] ipfix = VppCFLOW(test=self, intf=self.intf1, direction=self.direction) ipfix.add_vpp_config() ipfix_decoder = IPFIXDecoder() # template packet should arrive immediately templates = ipfix.verify_templates(ipfix_decoder) self.create_stream(packets=9) capture = self.send_packets() # make sure the one packet we expect actually showed up self.vapi.ipfix_flush() cflow = self.wait_for_cflow_packet(self.collector, templates[1]) self.verify_cflow_data_notimer(ipfix_decoder, capture, [cflow]) self.collector.get_capture(4) ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0001") def test_0002(self): """no timers, two CFLOW packets (mtu=260), 3 Flows in each""" self.logger.info("FFP_TEST_START_0002") self.pg_enable_capture(self.pg_interfaces) self.pkts = [] ipfix = VppCFLOW(test=self, intf=self.intf1, direction=self.direction, mtu=260) ipfix.add_vpp_config() ipfix_decoder = IPFIXDecoder() # template packet should arrive immediately self.vapi.ipfix_flush() templates = ipfix.verify_templates(ipfix_decoder) self.create_stream(packets=6) capture = self.send_packets() # make sure the one packet we expect actually showed up cflows = [] self.vapi.ipfix_flush() cflows.append(self.wait_for_cflow_packet(self.collector, templates[1])) cflows.append(self.wait_for_cflow_packet(self.collector, templates[1])) self.verify_cflow_data_notimer(ipfix_decoder, capture, cflows) self.collector.get_capture(5) ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0002") class DatapathTx(MethodHolder, DatapathTestsHolder): """Collect info on Ethernet, IP4 and IP6 datapath (TX) (no timers)""" intf1 = "pg2" intf2 = "pg4" intf3 = "pg6" direction = "tx" def test_rewritten_traffic(self): """Rewritten traffic (from subif to ipfix if)""" self.pg_enable_capture(self.pg_interfaces) self.pkts = [] # prepare a sub-interface subif = VppDot1ADSubint(self, self.pg7, 0, 300, 400) subif.admin_up() subif.config_ip4() # enable ip4 datapath for an interface ipfix = VppCFLOW( test=self, intf="pg8", datapath="ip4", layer="l2 l3 l4", direction=self.direction, ) ipfix.add_vpp_config() # template packet should arrive immediately ipfix_decoder = IPFIXDecoder() templates = ipfix.verify_templates(ipfix_decoder, count=1) # forward some traffic through the ipfix interface route = VppIpRoute( self, "9.0.0.0", 24, [VppRoutePath(self.pg8.remote_ip4, self.pg8.sw_if_index)], ) route.add_vpp_config() # prepare an IPv4 packet (subif => ipfix interface) pkt = ( Ether(src=subif.remote_mac, dst=self.pg7.local_mac) / IP(src=subif.remote_ip4, dst="9.0.0.1") / UDP(sport=1234, dport=4321) / Raw(b"\xa5" * 123) ) self.pkts = [ subif.add_dot1ad_layer(pkt, 300, 400), ] # send the packet capture = self.send_packets(self.pg7, self.pg8) # wait for a flow and verify it self.vapi.ipfix_flush() cflow = self.wait_for_cflow_packet(self.collector, templates[0]) self.verify_cflow_data(ipfix_decoder, capture, cflow) self.verify_cflow_data_detail( ipfix_decoder, capture, cflow, { IPFIX_SRC_IP4_ADDR_ID: "src_ip", IPFIX_DST_IP4_ADDR_ID: "dst_ip", IPFIX_SRC_TRANS_PORT_ID: "sport", IPFIX_DST_TRANS_PORT_ID: "dport", IPFIX_FLOW_DIRECTION_ID: (self.direction == "tx"), }, ) self.collector.get_capture(2) # cleanup route.remove_vpp_config() subif.remove_vpp_config() ipfix.remove_vpp_config() class DatapathRx(MethodHolder, DatapathTestsHolder): """Collect info on Ethernet, IP4 and IP6 datapath (RX) (no timers)""" intf1 = "pg1" intf2 = "pg3" intf3 = "pg5" direction = "rx" @unittest.skipUnless(config.extended, "part of extended tests") class DisableIPFIX(MethodHolder): """Disable IPFIX""" @classmethod def setUpClass(cls): super(DisableIPFIX, cls).setUpClass() @classmethod def tearDownClass(cls): super(DisableIPFIX, cls).tearDownClass() def test_0001(self): """disable IPFIX after first packets""" self.logger.info("FFP_TEST_START_0001") self.pg_enable_capture(self.pg_interfaces) self.pkts = [] ipfix = VppCFLOW(test=self) ipfix.add_vpp_config() ipfix_decoder = IPFIXDecoder() # template packet should arrive immediately templates = ipfix.verify_templates(ipfix_decoder) self.create_stream() self.send_packets() # make sure the one packet we expect actually showed up self.vapi.ipfix_flush() self.wait_for_cflow_packet(self.collector, templates[1]) self.collector.get_capture(4) # disable IPFIX ipfix.disable_exporter() self.pg_enable_capture([self.collector]) self.send_packets() # make sure no one packet arrived in 1 minute self.vapi.ipfix_flush() self.sleep(1, "wait before verifying no packets sent") self.collector.assert_nothing_captured() ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0001") @unittest.skipUnless(config.extended, "part of extended tests") class ReenableIPFIX(MethodHolder): """Re-enable IPFIX""" @classmethod def setUpClass(cls): super(ReenableIPFIX, cls).setUpClass() @classmethod def tearDownClass(cls): super(ReenableIPFIX, cls).tearDownClass() def test_0011(self): """disable IPFIX after first packets and re-enable after few packets""" self.logger.info("FFP_TEST_START_0001") self.pg_enable_capture(self.pg_interfaces) self.pkts = [] ipfix = VppCFLOW(test=self) ipfix.add_vpp_config() ipfix_decoder = IPFIXDecoder() # template packet should arrive immediately templates = ipfix.verify_templates(ipfix_decoder) self.create_stream(packets=5) self.send_packets() # make sure the one packet we expect actually showed up self.vapi.ipfix_flush() self.wait_for_cflow_packet(self.collector, templates[1]) self.collector.get_capture(4) # disable IPFIX ipfix.disable_exporter() self.vapi.ipfix_flush() self.pg_enable_capture([self.collector]) self.send_packets() # make sure no one packet arrived in active timer span self.vapi.ipfix_flush() self.sleep(1, "wait before verifying no packets sent") self.collector.assert_nothing_captured() self.pg2.get_capture(5) # enable IPFIX ipfix.enable_exporter() capture = self.collector.get_capture(4) nr_templates = 0 nr_data = 0 for p in capture: self.assertTrue(p.haslayer(IPFIX)) if p.haslayer(Template): nr_templates += 1 self.assertTrue(nr_templates, 3) for p in capture: self.assertTrue(p.haslayer(IPFIX)) if p.haslayer(Data): nr_data += 1 self.assertTrue(nr_templates, 1) ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0001") @unittest.skipUnless(config.extended, "part of extended tests") class DisableFP(MethodHolder): """Disable Flowprobe feature""" @classmethod def setUpClass(cls): super(DisableFP, cls).setUpClass() @classmethod def tearDownClass(cls): super(DisableFP, cls).tearDownClass() def test_0001(self): """disable flowprobe feature after first packets""" self.logger.info("FFP_TEST_START_0001") self.pg_enable_capture(self.pg_interfaces) self.pkts = [] ipfix = VppCFLOW(test=self) ipfix.add_vpp_config() ipfix_decoder = IPFIXDecoder() # template packet should arrive immediately templates = ipfix.verify_templates(ipfix_decoder) self.create_stream() self.send_packets() # make sure the one packet we expect actually showed up self.vapi.ipfix_flush() self.wait_for_cflow_packet(self.collector, templates[1]) self.collector.get_capture(4) # disable IPFIX ipfix.disable_flowprobe_feature() self.pg_enable_capture([self.collector]) self.send_packets() # make sure no one packet arrived in active timer span self.vapi.ipfix_flush() self.sleep(1, "wait before verifying no packets sent") self.collector.assert_nothing_captured() # enable FPP feature so the remove_vpp_config() doesn't fail # due to missing feature on interface. ipfix.enable_flowprobe_feature() ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0001") def test_no_leftover_flows_after_disabling(self): """disable flowprobe feature and expect no leftover flows""" self.pg_enable_capture(self.pg_interfaces) self.pkts = [] # enable ip4 datapath for an interface # set active and passive timers ipfix = VppCFLOW( test=self, active=3, passive=4, intf="pg3", layer="l3", datapath="ip4", direction="rx", mtu=100, ) ipfix.add_vpp_config() # template packet should arrive immediately ipfix.verify_templates(count=1) # send some ip4 packets self.create_stream(src_if=self.pg3, dst_if=self.pg4, packets=5) self.send_packets(src_if=self.pg3, dst_if=self.pg4) # disable feature for the interface # currently stored ip4 flows should be removed ipfix.disable_flowprobe_feature() # no leftover ip4 flows are expected self.pg_enable_capture([self.collector]) self.sleep(12, "wait for leftover ip4 flows during three passive intervals") self.collector.assert_nothing_captured() # re-enable feature for the interface ipfix.enable_flowprobe_feature() # template packet should arrive immediately ipfix_decoder = IPFIXDecoder() self.vapi.ipfix_flush() templates = ipfix.verify_templates(ipfix_decoder, count=1) # send some ip4 packets self.create_stream(src_if=self.pg3, dst_if=self.pg4, packets=5) capture = self.send_packets(src_if=self.pg3, dst_if=self.pg4) # verify meta info - packet/octet delta self.vapi.ipfix_flush() cflow = self.wait_for_cflow_packet(self.collector, templates[0], timeout=8) self.verify_cflow_data(ipfix_decoder, capture, cflow) self.collector.get_capture(2) # cleanup ipfix.remove_vpp_config() @unittest.skipUnless(config.extended, "part of extended tests") class ReenableFP(MethodHolder): """Re-enable Flowprobe feature""" @classmethod def setUpClass(cls): super(ReenableFP, cls).setUpClass() @classmethod def tearDownClass(cls): super(ReenableFP, cls).tearDownClass() def test_0001(self): """disable flowprobe feature after first packets and re-enable after few packets""" self.logger.info("FFP_TEST_START_0001") self.pg_enable_capture(self.pg_interfaces) self.pkts = [] ipfix = VppCFLOW(test=self) ipfix.add_vpp_config() ipfix_decoder = IPFIXDecoder() # template packet should arrive immediately self.vapi.ipfix_flush() templates = ipfix.verify_templates(ipfix_decoder, timeout=3) self.create_stream() self.send_packets() # make sure the one packet we expect actually showed up self.vapi.ipfix_flush() self.wait_for_cflow_packet(self.collector, templates[1], 5) self.collector.get_capture(4) # disable FPP feature ipfix.disable_flowprobe_feature() self.pg_enable_capture([self.collector]) self.send_packets() # make sure no one packet arrived in active timer span self.vapi.ipfix_flush() self.sleep(5, "wait before verifying no packets sent") self.collector.assert_nothing_captured() # enable FPP feature ipfix.enable_flowprobe_feature() self.vapi.ipfix_flush() templates = ipfix.verify_templates(ipfix_decoder, timeout=3) self.send_packets() # make sure the next packets (templates and data) we expect actually # showed up self.vapi.ipfix_flush() self.wait_for_cflow_packet(self.collector, templates[1], 5) self.collector.get_capture(4) ipfix.remove_vpp_config() self.logger.info("FFP_TEST_FINISH_0001") if __name__ == "__main__": unittest.main(testRunner=VppTestRunner)