--- /dev/null
+#!/usr/bin/env python
+""" ACL plugin extended stateful tests """
+
+import unittest
+from framework import VppTestCase, VppTestRunner, running_extended_tests
+from scapy.layers.l2 import Ether
+from scapy.packet import Raw
+from scapy.layers.inet import IP, UDP, TCP
+from scapy.packet import Packet
+from socket import inet_pton, AF_INET, AF_INET6
+from scapy.layers.inet6 import IPv6, ICMPv6Unknown, ICMPv6EchoRequest
+from scapy.layers.inet6 import ICMPv6EchoReply, IPv6ExtHdrRouting
+from scapy.layers.inet6 import IPv6ExtHdrFragment
+from pprint import pprint
+from random import randint
+from util import L4_Conn
+
+
+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 = {
+ 'is_permit': is_permit,
+ 'is_ipv6': p.haslayer(IPv6),
+ 'src_ip_addr': inet_pton(rule_family,
+ p[rule_l3_layer].src),
+ 'src_ip_prefix_len': rule_prefix_len,
+ 'dst_ip_addr': inet_pton(rule_family,
+ p[rule_l3_layer].dst),
+ 'dst_ip_prefix_len': rule_prefix_len,
+ 'srcport_or_icmptype_first': rule_l4_sport_first,
+ 'srcport_or_icmptype_last': rule_l4_sport_last,
+ 'dstport_or_icmpcode_first': rule_l4_dport,
+ 'dstport_or_icmpcode_last': rule_l4_dport,
+ 'proto': rule_l4_proto,
+ }
+ 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))
+ res = self.testcase.vapi.acl_add_replace(0xffffffff, r)
+ self.testcase.assert_equal(res.retval, 0, "error adding ACL")
+ reflect_acl_index = res.acl_index
+
+ r = []
+ r.append(self.wildcard_rule(0))
+ res = self.testcase.vapi.acl_add_replace(0xffffffff, r)
+ self.testcase.assert_equal(res.retval, 0, "error adding deny ACL")
+ deny_acl_index = res.acl_index
+
+ if reflect_side == acl_side:
+ self.testcase.vapi.acl_interface_set_acl_list(
+ self.ifs[acl_side].sw_if_index, 1,
+ [reflect_acl_index,
+ deny_acl_index])
+ self.testcase.vapi.acl_interface_set_acl_list(
+ self.ifs[1-acl_side].sw_if_index, 0, [])
+ else:
+ self.testcase.vapi.acl_interface_set_acl_list(
+ self.ifs[acl_side].sw_if_index, 1,
+ [deny_acl_index,
+ reflect_acl_index])
+ self.testcase.vapi.acl_interface_set_acl_list(
+ self.ifs[1-acl_side].sw_if_index, 0, [])
+
+ 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 = {
+ 'is_permit': is_permit,
+ 'is_ipv6': is_ip6,
+ 'src_ip_addr': inet_pton(rule_family, any_addr[is_ip6]),
+ 'src_ip_prefix_len': 0,
+ 'dst_ip_addr': inet_pton(rule_family, any_addr[is_ip6]),
+ 'dst_ip_prefix_len': 0,
+ 'srcport_or_icmptype_first': 0,
+ 'srcport_or_icmptype_last': 65535,
+ 'dstport_or_icmpcode_first': 0,
+ 'dstport_or_icmpcode_last': 65535,
+ 'proto': 0,
+ }
+ return new_rule
+
+
+@unittest.skipUnless(running_extended_tests, "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 arp"))
+ 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)
Code Review / vpp.git / blobdiff