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
+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 IPv6ExtHdrFragment
from pprint import pprint
from random import randint
+from util import L4_Conn
def to_acl_rule(self, is_permit, wildcard_sport=False):
self.testcase.sleep(self.sleep_sec)
-class Conn():
- def __init__(self, testcase, if1, if2, af, l4proto, port1, port2):
- self.testcase = testcase
- self.ifs = [None, None]
- self.ifs[0] = if1
- self.ifs[1] = if2
- self.address_family = af
- self.l4proto = l4proto
- self.ports = [None, None]
- self.ports[0] = port1
- self.ports[1] = port2
- self
-
- def pkt(self, side):
- is_ip6 = 1 if self.address_family == AF_INET6 else 0
- s0 = side
- s1 = 1-side
- src_if = self.ifs[s0]
- dst_if = self.ifs[s1]
- layer_3 = [IP(src=src_if.remote_ip4, dst=dst_if.remote_ip4),
- IPv6(src=src_if.remote_ip6, dst=dst_if.remote_ip6)]
- payload = "x"
- p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
- layer_3[is_ip6] /
- self.l4proto(sport=self.ports[s0], dport=self.ports[s1]) /
- Raw(payload))
- return p
-
+class Conn(L4_Conn):
def apply_acls(self, reflect_side, acl_side):
pkts = []
pkts.append(self.pkt(0))
r = []
r.append(pkt.to_acl_rule(2, wildcard_sport=True))
r.append(self.wildcard_rule(0))
- res = self.testcase.api_acl_add_replace(0xffffffff, r)
+ 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.api_acl_add_replace(0xffffffff, r)
+ 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.api_acl_interface_set_acl_list(
- self.ifs[acl_side].sw_if_index, 2, 1,
+ self.testcase.vapi.acl_interface_set_acl_list(
+ self.ifs[acl_side].sw_if_index, 1,
[reflect_acl_index,
deny_acl_index])
- self.testcase.api_acl_interface_set_acl_list(
- self.ifs[1-acl_side].sw_if_index, 0, 0, [])
+ self.testcase.vapi.acl_interface_set_acl_list(
+ self.ifs[1-acl_side].sw_if_index, 0, [])
else:
- self.testcase.api_acl_interface_set_acl_list(
- self.ifs[acl_side].sw_if_index, 2, 1,
+ self.testcase.vapi.acl_interface_set_acl_list(
+ self.ifs[acl_side].sw_if_index, 1,
[deny_acl_index,
reflect_acl_index])
- self.testcase.api_acl_interface_set_acl_list(
- self.ifs[1-acl_side].sw_if_index, 0, 0, [])
+ 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", "::"]
}
return new_rule
- def send(self, side):
- self.ifs[side].add_stream(self.pkt(side))
- self.ifs[1-side].enable_capture()
- self.testcase.pg_start()
-
- def recv(self, side):
- p = self.ifs[side].wait_for_packet(1)
- return p
-
- def send_through(self, side):
- self.send(side)
- p = self.recv(1-side)
- return p
-
- def send_pingpong(self, side):
- p1 = self.send_through(side)
- p2 = self.send_through(1-side)
- return [p1, p2]
-
@unittest.skipUnless(running_extended_tests(), "part of extended tests")
class ACLPluginConnTestCase(VppTestCase):
super(ACLPluginConnTestCase, self).setUpClass()
# create pg0 and pg1
self.create_pg_interfaces(range(2))
+ cmd = "set acl-plugin session table event-trace 1"
+ self.logger.info(self.vapi.cli(cmd))
for i in self.pg_interfaces:
i.admin_up()
i.config_ip4()
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"))
-
- def api_acl_add_replace(self, acl_index, r, count=-1, tag="",
- expected_retval=0):
- """Add/replace an ACL
-
- :param int acl_index: ACL index to replace, 4294967295 to create new.
- :param acl_rule r: ACL rules array.
- :param str tag: symbolic tag (description) for this ACL.
- :param int count: number of rules.
- """
- if (count < 0):
- count = len(r)
- return self.vapi.api(self.vapi.papi.acl_add_replace,
- {'acl_index': acl_index,
- 'r': r,
- 'count': count,
- 'tag': tag
- }, expected_retval=expected_retval)
-
- def api_acl_interface_set_acl_list(self, sw_if_index, count, n_input, acls,
- expected_retval=0):
- return self.vapi.api(self.vapi.papi.acl_interface_set_acl_list,
- {'sw_if_index': sw_if_index,
- 'count': count,
- 'n_input': n_input,
- 'acls': acls
- }, expected_retval=expected_retval)
-
- def api_acl_dump(self, acl_index, expected_retval=0):
- return self.vapi.api(self.vapi.papi.acl_dump,
- {'acl_index': acl_index},
- expected_retval=expected_retval)
+ self.logger.info(self.vapi.cli("show event-logger all"))
def run_basic_conn_test(self, af, acl_side):
""" Basic conn timeout test """
# 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")
""" 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)
""" 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