vpp/test/test_acl_plugin_conns.py
Dave Wallace 8800f732f8 tests: refactor asf framework code
- Make framework.py classes a subset of asfframework.py classes
- Remove all packet related code from asfframework.py
- Add test class and test case set up debug output to log
- Repatriate packet tests from asf to test directory
- Remove non-packet related code from framework.py and
  inherit them from asfframework.py classes
- Clean up unused import variables
- Re-enable BFD tests on Ubuntu 22.04 and fix
  intermittent test failures in echo_looped_back
  testcases (where # control packets verified but
  not guaranteed to be received during test)
- Re-enable Wireguard tests on Ubuntu 22.04 and fix
  intermittent test failures in handshake ratelimiting
  testcases and event testcase
- Run Wiregard testcase suites solo
- Improve debug output in log.txt
- Increase VCL/LDP post sleep timeout to allow iperf server
  to finish cleanly.
- Fix pcap history files to be sorted by suite and testcase
  and ensure order/timestamp is correct based on creation
  in the testcase.
- Decode pcap files for each suite and testcase for all
  errors or if configured via comandline option / env var
- Improve vpp corefile detection to allow complete corefile
  generation
- Disable vm vpp interfaces testcases on debian11
- Clean up failed unittest dir when retrying failed testcases
  and unify testname directory and failed linknames into
  framwork functions

Type: test

Change-Id: I0764f79ea5bb639d278bf635ed2408d4d5220e1e
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
2023-11-03 05:06:43 +00:00

411 lines
15 KiB
Python

#!/usr/bin/env python3
""" ACL plugin extended stateful tests """
import unittest
from config import config
from framework import VppTestCase
from scapy.layers.inet import IP, UDP, TCP
from scapy.packet import Packet
from socket import AF_INET, AF_INET6
from scapy.layers.inet6 import IPv6
from util import L4_Conn
from ipaddress import ip_network
from vpp_acl import AclRule, VppAcl, VppAclInterface
def to_acl_rule(self, is_permit, wildcard_sport=False):
p = self
rule_family = AF_INET6 if p.haslayer(IPv6) else AF_INET
rule_prefix_len = 128 if p.haslayer(IPv6) else 32
rule_l3_layer = IPv6 if p.haslayer(IPv6) else IP
rule_l4_sport = p.sport
rule_l4_dport = p.dport
if p.haslayer(IPv6):
rule_l4_proto = p[IPv6].nh
else:
rule_l4_proto = p[IP].proto
if wildcard_sport:
rule_l4_sport_first = 0
rule_l4_sport_last = 65535
else:
rule_l4_sport_first = rule_l4_sport
rule_l4_sport_last = rule_l4_sport
new_rule = AclRule(
is_permit=is_permit,
proto=rule_l4_proto,
src_prefix=ip_network((p[rule_l3_layer].src, rule_prefix_len)),
dst_prefix=ip_network((p[rule_l3_layer].dst, rule_prefix_len)),
sport_from=rule_l4_sport_first,
sport_to=rule_l4_sport_last,
dport_from=rule_l4_dport,
dport_to=rule_l4_dport,
)
return new_rule
Packet.to_acl_rule = to_acl_rule
class IterateWithSleep:
def __init__(self, testcase, n_iters, description, sleep_sec):
self.curr = 0
self.testcase = testcase
self.n_iters = n_iters
self.sleep_sec = sleep_sec
self.description = description
def __iter__(self):
for x in range(0, self.n_iters):
yield x
self.testcase.sleep(self.sleep_sec)
class Conn(L4_Conn):
def apply_acls(self, reflect_side, acl_side):
pkts = []
pkts.append(self.pkt(0))
pkts.append(self.pkt(1))
pkt = pkts[reflect_side]
r = []
r.append(pkt.to_acl_rule(2, wildcard_sport=True))
r.append(self.wildcard_rule(0))
reflect_acl = VppAcl(self.testcase, r)
reflect_acl.add_vpp_config()
r = []
r.append(self.wildcard_rule(0))
deny_acl = VppAcl(self.testcase, r)
deny_acl.add_vpp_config()
if reflect_side == acl_side:
acl_if0 = VppAclInterface(
self.testcase,
self.ifs[acl_side].sw_if_index,
[reflect_acl, deny_acl],
n_input=1,
)
acl_if1 = VppAclInterface(
self.testcase, self.ifs[1 - acl_side].sw_if_index, [], n_input=0
)
acl_if0.add_vpp_config()
acl_if1.add_vpp_config()
else:
acl_if0 = VppAclInterface(
self.testcase,
self.ifs[acl_side].sw_if_index,
[deny_acl, reflect_acl],
n_input=1,
)
acl_if1 = VppAclInterface(
self.testcase, self.ifs[1 - acl_side].sw_if_index, [], n_input=0
)
acl_if0.add_vpp_config()
acl_if1.add_vpp_config()
def wildcard_rule(self, is_permit):
any_addr = ["0.0.0.0", "::"]
rule_family = self.address_family
is_ip6 = 1 if rule_family == AF_INET6 else 0
new_rule = AclRule(
is_permit=is_permit,
proto=0,
src_prefix=ip_network((any_addr[is_ip6], 0)),
dst_prefix=ip_network((any_addr[is_ip6], 0)),
sport_from=0,
sport_to=65535,
dport_from=0,
dport_to=65535,
)
return new_rule
@unittest.skipUnless(config.extended, "part of extended tests")
class ACLPluginConnTestCase(VppTestCase):
"""ACL plugin connection-oriented extended testcases"""
@classmethod
def setUpClass(cls):
super(ACLPluginConnTestCase, cls).setUpClass()
# create pg0 and pg1
cls.create_pg_interfaces(range(2))
cmd = "set acl-plugin session table event-trace 1"
cls.logger.info(cls.vapi.cli(cmd))
for i in cls.pg_interfaces:
i.admin_up()
i.config_ip4()
i.config_ip6()
i.resolve_arp()
i.resolve_ndp()
@classmethod
def tearDownClass(cls):
super(ACLPluginConnTestCase, cls).tearDownClass()
def tearDown(self):
"""Run standard test teardown and log various show commands"""
super(ACLPluginConnTestCase, self).tearDown()
def show_commands_at_teardown(self):
self.logger.info(self.vapi.cli("show ip neighbors"))
self.logger.info(self.vapi.cli("show ip6 neighbors"))
self.logger.info(self.vapi.cli("show acl-plugin sessions"))
self.logger.info(self.vapi.cli("show acl-plugin acl"))
self.logger.info(self.vapi.cli("show acl-plugin interface"))
self.logger.info(self.vapi.cli("show acl-plugin tables"))
self.logger.info(self.vapi.cli("show event-logger all"))
def run_basic_conn_test(self, af, acl_side):
"""Basic conn timeout test"""
conn1 = Conn(self, self.pg0, self.pg1, af, UDP, 42001, 4242)
conn1.apply_acls(0, acl_side)
conn1.send_through(0)
# the return packets should pass
conn1.send_through(1)
# send some packets on conn1, ensure it doesn't go away
for i in IterateWithSleep(self, 20, "Keep conn active", 0.3):
conn1.send_through(1)
# allow the conn to time out
for i in IterateWithSleep(self, 30, "Wait for timeout", 0.1):
pass
# now try to send a packet on the reflected side
try:
p2 = conn1.send_through(1).command()
except:
# If we asserted while waiting, it's good.
# the conn should have timed out.
p2 = None
self.assert_equal(p2, None, "packet on long-idle conn")
def run_active_conn_test(self, af, acl_side):
"""Idle connection behind active connection test"""
base = 10000 + 1000 * acl_side
conn1 = Conn(self, self.pg0, self.pg1, af, UDP, base + 1, 2323)
conn2 = Conn(self, self.pg0, self.pg1, af, UDP, base + 2, 2323)
conn3 = Conn(self, self.pg0, self.pg1, af, UDP, base + 3, 2323)
conn1.apply_acls(0, acl_side)
conn1.send(0)
conn1.recv(1)
# create and check that the conn2/3 work
self.sleep(0.1)
conn2.send_pingpong(0)
self.sleep(0.1)
conn3.send_pingpong(0)
# send some packets on conn1, keep conn2/3 idle
for i in IterateWithSleep(self, 20, "Keep conn active", 0.2):
conn1.send_through(1)
try:
p2 = conn2.send_through(1).command()
except:
# If we asserted while waiting, it's good.
# the conn should have timed out.
p2 = None
# We should have not received the packet on a long-idle
# connection, because it should have timed out
# If it didn't - it is a problem
self.assert_equal(p2, None, "packet on long-idle conn")
def run_clear_conn_test(self, af, acl_side):
"""Clear the connections via CLI"""
conn1 = Conn(self, self.pg0, self.pg1, af, UDP, 42001, 4242)
conn1.apply_acls(0, acl_side)
conn1.send_through(0)
# the return packets should pass
conn1.send_through(1)
# send some packets on conn1, ensure it doesn't go away
for i in IterateWithSleep(self, 20, "Keep conn active", 0.3):
conn1.send_through(1)
# clear all connections
self.vapi.ppcli("clear acl-plugin sessions")
# now try to send a packet on the reflected side
try:
p2 = conn1.send_through(1).command()
except:
# If we asserted while waiting, it's good.
# the conn should have timed out.
p2 = None
self.assert_equal(p2, None, "packet on supposedly deleted conn")
def run_tcp_transient_setup_conn_test(self, af, acl_side):
conn1 = Conn(self, self.pg0, self.pg1, af, TCP, 53001, 5151)
conn1.apply_acls(0, acl_side)
conn1.send_through(0, "S")
# the return packets should pass
conn1.send_through(1, "SA")
# allow the conn to time out
for i in IterateWithSleep(self, 30, "Wait for timeout", 0.1):
pass
# ensure conn times out
try:
p2 = conn1.send_through(1).command()
except:
# If we asserted while waiting, it's good.
# the conn should have timed out.
p2 = None
self.assert_equal(p2, None, "packet on supposedly deleted conn")
def run_tcp_established_conn_test(self, af, acl_side):
conn1 = Conn(self, self.pg0, self.pg1, af, TCP, 53002, 5052)
conn1.apply_acls(0, acl_side)
conn1.send_through(0, "S")
# the return packets should pass
conn1.send_through(1, "SA")
# complete the threeway handshake
# (NB: sequence numbers not tracked, so not set!)
conn1.send_through(0, "A")
# allow the conn to time out if it's in embryonic timer
for i in IterateWithSleep(self, 30, "Wait for transient timeout", 0.1):
pass
# Try to send the packet from the "forbidden" side - it must pass
conn1.send_through(1, "A")
# ensure conn times out for real
for i in IterateWithSleep(self, 130, "Wait for timeout", 0.1):
pass
try:
p2 = conn1.send_through(1).command()
except:
# If we asserted while waiting, it's good.
# the conn should have timed out.
p2 = None
self.assert_equal(p2, None, "packet on supposedly deleted conn")
def run_tcp_transient_teardown_conn_test(self, af, acl_side):
conn1 = Conn(self, self.pg0, self.pg1, af, TCP, 53002, 5052)
conn1.apply_acls(0, acl_side)
conn1.send_through(0, "S")
# the return packets should pass
conn1.send_through(1, "SA")
# complete the threeway handshake
# (NB: sequence numbers not tracked, so not set!)
conn1.send_through(0, "A")
# allow the conn to time out if it's in embryonic timer
for i in IterateWithSleep(self, 30, "Wait for transient timeout", 0.1):
pass
# Try to send the packet from the "forbidden" side - it must pass
conn1.send_through(1, "A")
# Send the FIN to bounce the session out of established
conn1.send_through(1, "FA")
# If conn landed on transient timer it will time out here
for i in IterateWithSleep(self, 30, "Wait for transient timeout", 0.1):
pass
# Now it should have timed out already
try:
p2 = conn1.send_through(1).command()
except:
# If we asserted while waiting, it's good.
# the conn should have timed out.
p2 = None
self.assert_equal(p2, None, "packet on supposedly deleted conn")
def test_0000_conn_prepare_test(self):
"""Prepare the settings"""
self.vapi.ppcli("set acl-plugin session timeout udp idle 1")
def test_0001_basic_conn_test(self):
"""IPv4: Basic conn timeout test reflect on ingress"""
self.run_basic_conn_test(AF_INET, 0)
def test_0002_basic_conn_test(self):
"""IPv4: Basic conn timeout test reflect on egress"""
self.run_basic_conn_test(AF_INET, 1)
def test_0005_clear_conn_test(self):
"""IPv4: reflect egress, clear conn"""
self.run_clear_conn_test(AF_INET, 1)
def test_0006_clear_conn_test(self):
"""IPv4: reflect ingress, clear conn"""
self.run_clear_conn_test(AF_INET, 0)
def test_0011_active_conn_test(self):
"""IPv4: Idle conn behind active conn, reflect on ingress"""
self.run_active_conn_test(AF_INET, 0)
def test_0012_active_conn_test(self):
"""IPv4: Idle conn behind active conn, reflect on egress"""
self.run_active_conn_test(AF_INET, 1)
def test_1001_basic_conn_test(self):
"""IPv6: Basic conn timeout test reflect on ingress"""
self.run_basic_conn_test(AF_INET6, 0)
def test_1002_basic_conn_test(self):
"""IPv6: Basic conn timeout test reflect on egress"""
self.run_basic_conn_test(AF_INET6, 1)
def test_1005_clear_conn_test(self):
"""IPv6: reflect egress, clear conn"""
self.run_clear_conn_test(AF_INET6, 1)
def test_1006_clear_conn_test(self):
"""IPv6: reflect ingress, clear conn"""
self.run_clear_conn_test(AF_INET6, 0)
def test_1011_active_conn_test(self):
"""IPv6: Idle conn behind active conn, reflect on ingress"""
self.run_active_conn_test(AF_INET6, 0)
def test_1012_active_conn_test(self):
"""IPv6: Idle conn behind active conn, reflect on egress"""
self.run_active_conn_test(AF_INET6, 1)
def test_2000_prepare_for_tcp_test(self):
"""Prepare for TCP session tests"""
# ensure the session hangs on if it gets treated as UDP
self.vapi.ppcli("set acl-plugin session timeout udp idle 200")
# let the TCP connection time out at 5 seconds
self.vapi.ppcli("set acl-plugin session timeout tcp idle 10")
self.vapi.ppcli("set acl-plugin session timeout tcp transient 1")
def test_2001_tcp_transient_conn_test(self):
"""IPv4: transient TCP session (incomplete 3WHS), ref. on ingress"""
self.run_tcp_transient_setup_conn_test(AF_INET, 0)
def test_2002_tcp_transient_conn_test(self):
"""IPv4: transient TCP session (incomplete 3WHS), ref. on egress"""
self.run_tcp_transient_setup_conn_test(AF_INET, 1)
def test_2003_tcp_transient_conn_test(self):
"""IPv4: established TCP session (complete 3WHS), ref. on ingress"""
self.run_tcp_established_conn_test(AF_INET, 0)
def test_2004_tcp_transient_conn_test(self):
"""IPv4: established TCP session (complete 3WHS), ref. on egress"""
self.run_tcp_established_conn_test(AF_INET, 1)
def test_2005_tcp_transient_teardown_conn_test(self):
"""IPv4: transient TCP session (3WHS,ACK,FINACK), ref. on ingress"""
self.run_tcp_transient_teardown_conn_test(AF_INET, 0)
def test_2006_tcp_transient_teardown_conn_test(self):
"""IPv4: transient TCP session (3WHS,ACK,FINACK), ref. on egress"""
self.run_tcp_transient_teardown_conn_test(AF_INET, 1)
def test_3001_tcp_transient_conn_test(self):
"""IPv6: transient TCP session (incomplete 3WHS), ref. on ingress"""
self.run_tcp_transient_setup_conn_test(AF_INET6, 0)
def test_3002_tcp_transient_conn_test(self):
"""IPv6: transient TCP session (incomplete 3WHS), ref. on egress"""
self.run_tcp_transient_setup_conn_test(AF_INET6, 1)
def test_3003_tcp_transient_conn_test(self):
"""IPv6: established TCP session (complete 3WHS), ref. on ingress"""
self.run_tcp_established_conn_test(AF_INET6, 0)
def test_3004_tcp_transient_conn_test(self):
"""IPv6: established TCP session (complete 3WHS), ref. on egress"""
self.run_tcp_established_conn_test(AF_INET6, 1)
def test_3005_tcp_transient_teardown_conn_test(self):
"""IPv6: transient TCP session (3WHS,ACK,FINACK), ref. on ingress"""
self.run_tcp_transient_teardown_conn_test(AF_INET6, 0)
def test_3006_tcp_transient_teardown_conn_test(self):
"""IPv6: transient TCP session (3WHS,ACK,FINACK), ref. on egress"""
self.run_tcp_transient_teardown_conn_test(AF_INET6, 1)