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dab1dfeea9fec04a9a90a82dc5d770fbff344540
vpp/test/test_flowprobe.py
Alexander Chernavin dab1dfeea9 flowprobe: fix clearing interface state on feature disabling 
As a result of recent fixes, all currently stored flows of an interface
are deleted when the feature is being disabled for the interface. This
includes stopping the timer and freeing the flow entries for further
reuse. The problem is that meta information is not cleared in the flow
entries being deleted. For example, packet delta count will keep its
value. The next flow that gets one of these pool entries will already
have a non-zero packet count. So the counting of packets will start from
a non-zero value. And incorrect packet delta count will be exported for
that flow.

With this fix, clear meta information too when clearing interface state.
Also, update the corresponding test to cover this case.

Type: fix
Change-Id: I9a73b3958adfd1676e66b0ed50f1478920671cca
Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
2023-11-07 14:01:13 +00:00

1532 lines
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#!/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
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
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")
def test_0002(self):
"""timer greater than template timeout"""
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.pg4.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")
@tag_fixme_vpp_workers
class DatapathTx(MethodHolder, DatapathTestsHolder):
"""Collect info on Ethernet, IP4 and IP6 datapath (TX) (no timers)"""
intf1 = "pg2"
intf2 = "pg4"
intf3 = "pg6"
direction = "tx"
@tag_fixme_vpp_workers
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)
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