from scapy.layers.inet6 import IPv6
from bfd import VppBFDAuthKey, BFD, BFDAuthType, VppBFDUDPSession, \
BFDDiagCode, BFDState, BFD_vpp_echo
-from framework import VppTestCase, VppTestRunner
-from vpp_pg_interface import CaptureTimeoutError
+from framework import VppTestCase, VppTestRunner, running_extended_tests
+from vpp_pg_interface import CaptureTimeoutError, is_ipv6_misc
from util import ppp
from vpp_papi_provider import UnexpectedApiReturnValueError
+from vpp_ip_route import VppIpRoute, VppRoutePath
USEC_IN_SEC = 1000000
conf_key_id=conf_key_id, key=key)
+@unittest.skipUnless(running_extended_tests(), "part of extended tests")
class BFDAPITestCase(VppTestCase):
"""Bidirectional Forwarding Detection (BFD) - API"""
self.our_seq_number = our_seq_number
self.vpp_seq_number = None
self.my_discriminator = 0
- self.desired_min_tx = 100000
- self.required_min_rx = 100000
+ self.desired_min_tx = 300000
+ self.required_min_rx = 300000
self.required_min_echo_rx = None
self.detect_mult = detect_mult
self.diag = BFDDiagCode.no_diagnostic
bfd_session_up(self)
bfd_session_down(self)
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_hold_up(self):
""" hold BFD session up """
bfd_session_up(self)
self.assert_equal(len(self.vapi.collect_events()), 0,
"number of bfd events")
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_slow_timer(self):
""" verify slow periodic control frames while session down """
packet_count = 3
time_diff, 0.70, 1.05, "time between slow packets")
prev_packet = next_packet
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_zero_remote_min_rx(self):
""" no packets when zero remote required min rx interval """
bfd_session_up(self)
pass
self.assert_equal(
len(self.vapi.collect_events()), 0, "number of bfd events")
- self.test_session.update(required_min_rx=100000)
+ self.test_session.update(required_min_rx=300000)
for dummy in range(3):
self.test_session.send_packet()
wait_for_bfd_packet(
self.assert_equal(
len(self.vapi.collect_events()), 0, "number of bfd events")
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_conn_down(self):
""" verify session goes down after inactivity """
bfd_session_up(self)
e = self.vapi.wait_for_event(1, "bfd_udp_session_details")
verify_event(self, e, expected_state=BFDState.down)
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_large_required_min_rx(self):
""" large remote required min rx interval """
bfd_session_up(self)
break
self.assert_equal(count, 0, "number of packets received")
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_immediate_remote_min_rx_reduction(self):
""" immediately honor remote required min rx reduction """
self.vpp_session.remove_vpp_config()
"time between BFD packets")
reference_packet = p
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_modify_req_min_rx_double(self):
""" modify session - double required min rx """
bfd_session_up(self)
self.assert_in_range(time_to_event, .9 * timeout,
1.1 * timeout, "session timeout")
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_modify_req_min_rx_halve(self):
""" modify session - halve required min rx """
self.vpp_session.modify_parameters(
required_min_rx=0.5 * self.vpp_session.required_min_rx)
# now we wait 0.8*3*old-req-min-rx and the session should still be up
self.sleep(0.8 * self.vpp_session.detect_mult *
- old_required_min_rx / USEC_IN_SEC)
+ old_required_min_rx / USEC_IN_SEC,
+ "wait before finishing poll sequence")
self.assert_equal(len(self.vapi.collect_events()), 0,
"number of bfd events")
p = wait_for_bfd_packet(self)
final[BFD].flags = "F"
self.test_session.send_packet(final)
# now the session should time out under new conditions
- before = time.time()
- e = self.vapi.wait_for_event(1, "bfd_udp_session_details")
- after = time.time()
detection_time = self.test_session.detect_mult *\
self.vpp_session.required_min_rx / USEC_IN_SEC
+ before = time.time()
+ e = self.vapi.wait_for_event(
+ 2 * detection_time, "bfd_udp_session_details")
+ after = time.time()
self.assert_in_range(after - before,
0.9 * detection_time,
1.1 * detection_time,
"time before bfd session goes down")
verify_event(self, e, expected_state=BFDState.down)
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_modify_detect_mult(self):
""" modify detect multiplier """
bfd_session_up(self)
self.assertNotIn("P", p.sprintf("%BFD.flags%"),
"Poll bit not set in BFD packet")
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_queued_poll(self):
""" test poll sequence queueing """
bfd_session_up(self)
self.assertNotIn("P", p.sprintf("%BFD.flags%"),
"Poll bit set in BFD packet")
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_poll_response(self):
""" test correct response to control frame with poll bit set """
bfd_session_up(self)
self, pcap_time_min=time.time() - self.vpp_clock_offset)
self.assertIn("F", final.sprintf("%BFD.flags%"))
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_no_periodic_if_remote_demand(self):
""" no periodic frames outside poll sequence if remote demand set """
bfd_session_up(self)
self.assertNotEqual(p[IP].src, self.loopback0.local_ip4,
"BFD ECHO src IP equal to loopback IP")
self.logger.debug(ppp("Looping back packet:", p))
+ self.assert_equal(p[Ether].dst, self.pg0.remote_mac,
+ "ECHO packet destination MAC address")
+ p[Ether].dst = self.pg0.local_mac
self.pg0.add_stream(p)
self.pg_start()
elif p.haslayer(BFD):
"number of bfd events")
self.test_session.send_packet()
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_echo_fail(self):
""" session goes down if echo function fails """
bfd_session_up(self)
self.assert_equal(events[0].state, BFDState.down, BFDState)
self.assertTrue(verified_diag, "Incorrect diagnostics code received")
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_echo_stop(self):
""" echo function stops if peer sets required min echo rx zero """
bfd_session_up(self)
self.logger.debug(ppp("Got packet:", p))
if p[UDP].dport == BFD.udp_dport_echo:
self.logger.debug(ppp("Looping back packet:", p))
+ p[Ether].dst = self.pg0.local_mac
self.pg0.add_stream(p)
self.pg_start()
break
events = self.vapi.collect_events()
self.assert_equal(len(events), 0, "number of bfd events")
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_echo_source_removed(self):
""" echo function stops if echo source is removed """
bfd_session_up(self)
self.logger.debug(ppp("Got packet:", p))
if p[UDP].dport == BFD.udp_dport_echo:
self.logger.debug(ppp("Looping back packet:", p))
+ p[Ether].dst = self.pg0.local_mac
self.pg0.add_stream(p)
self.pg_start()
break
events = self.vapi.collect_events()
self.assert_equal(len(events), 0, "number of bfd events")
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_stale_echo(self):
""" stale echo packets don't keep a session up """
bfd_session_up(self)
else:
self.logger.debug(ppp("Got followup echo packet:", p))
self.logger.debug(ppp("Looping back first echo packet:", p))
+ echo_packet[Ether].dst = self.pg0.local_mac
self.pg0.add_stream(echo_packet)
self.pg_start()
elif p.haslayer(BFD):
self.test_session.send_packet()
self.assertTrue(timeout_ok, "Expected timeout event didn't occur")
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_invalid_echo_checksum(self):
""" echo packets with invalid checksum don't keep a session up """
bfd_session_up(self)
timeout_at = time.time() + self.vpp_session.detect_mult * \
self.test_session.required_min_echo_rx / USEC_IN_SEC
p[BFD_vpp_echo].checksum = getrandbits(64)
+ p[Ether].dst = self.pg0.local_mac
self.logger.debug(ppp("Looping back modified echo packet:", p))
self.pg0.add_stream(p)
self.pg_start()
self.test_session.send_packet()
self.assertTrue(timeout_ok, "Expected timeout event didn't occur")
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_admin_up_down(self):
""" put session admin-up and admin-down """
bfd_session_up(self)
e = self.vapi.wait_for_event(1, "bfd_udp_session_details")
verify_event(self, e, expected_state=BFDState.up)
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_config_change_remote_demand(self):
""" configuration change while peer in demand mode """
bfd_session_up(self)
self.test_session.send_packet()
self.assert_equal(self.vpp_session.state, BFDState.up, BFDState)
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_hold_up(self):
""" hold BFD session up """
bfd_session_up(self)
self.assertNotEqual(p[IPv6].src, self.loopback0.local_ip6,
"BFD ECHO src IP equal to loopback IP")
self.logger.debug(ppp("Looping back packet:", p))
+ self.assert_equal(p[Ether].dst, self.pg0.remote_mac,
+ "ECHO packet destination MAC address")
+ p[Ether].dst = self.pg0.local_mac
self.pg0.add_stream(p)
self.pg_start()
elif p.haslayer(BFD):
self.test_session.send_packet()
+class BFDFIBTestCase(VppTestCase):
+ """ BFD-FIB interactions (IPv6) """
+
+ vpp_session = None
+ test_session = None
+
+ def setUp(self):
+ super(BFDFIBTestCase, self).setUp()
+ self.create_pg_interfaces(range(1))
+
+ self.vapi.want_bfd_events()
+ self.pg0.enable_capture()
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip6()
+ i.configure_ipv6_neighbors()
+
+ def tearDown(self):
+ if not self.vpp_dead:
+ self.vapi.want_bfd_events(enable_disable=0)
+
+ super(BFDFIBTestCase, self).tearDown()
+
+ @staticmethod
+ def pkt_is_not_data_traffic(p):
+ """ not data traffic implies BFD or the usual IPv6 ND/RA"""
+ if p.haslayer(BFD) or is_ipv6_misc(p):
+ return True
+ return False
+
+ def test_session_with_fib(self):
+ """ BFD-FIB interactions """
+
+ # packets to match against both of the routes
+ p = [(Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IPv6(src="3001::1", dst="2001::1") /
+ UDP(sport=1234, dport=1234) /
+ Raw('\xa5' * 100)),
+ (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IPv6(src="3001::1", dst="2002::1") /
+ UDP(sport=1234, dport=1234) /
+ Raw('\xa5' * 100))]
+
+ # A recursive and a non-recursive route via a next-hop that
+ # will have a BFD session
+ ip_2001_s_64 = VppIpRoute(self, "2001::", 64,
+ [VppRoutePath(self.pg0.remote_ip6,
+ self.pg0.sw_if_index,
+ is_ip6=1)],
+ is_ip6=1)
+ ip_2002_s_64 = VppIpRoute(self, "2002::", 64,
+ [VppRoutePath(self.pg0.remote_ip6,
+ 0xffffffff,
+ is_ip6=1)],
+ is_ip6=1)
+ ip_2001_s_64.add_vpp_config()
+ ip_2002_s_64.add_vpp_config()
+
+ # bring the session up now the routes are present
+ self.vpp_session = VppBFDUDPSession(self,
+ self.pg0,
+ self.pg0.remote_ip6,
+ af=AF_INET6)
+ self.vpp_session.add_vpp_config()
+ self.vpp_session.admin_up()
+ self.test_session = BFDTestSession(self, self.pg0, AF_INET6)
+
+ # session is up - traffic passes
+ bfd_session_up(self)
+
+ self.pg0.add_stream(p)
+ self.pg_start()
+ for packet in p:
+ captured = self.pg0.wait_for_packet(
+ 1,
+ filter_out_fn=self.pkt_is_not_data_traffic)
+ self.assertEqual(captured[IPv6].dst,
+ packet[IPv6].dst)
+
+ # session is up - traffic is dropped
+ bfd_session_down(self)
+
+ self.pg0.add_stream(p)
+ self.pg_start()
+ with self.assertRaises(CaptureTimeoutError):
+ self.pg0.wait_for_packet(1, self.pkt_is_not_data_traffic)
+
+ # session is up - traffic passes
+ bfd_session_up(self)
+
+ self.pg0.add_stream(p)
+ self.pg_start()
+ for packet in p:
+ captured = self.pg0.wait_for_packet(
+ 1,
+ filter_out_fn=self.pkt_is_not_data_traffic)
+ self.assertEqual(captured[IPv6].dst,
+ packet[IPv6].dst)
+
+
class BFDSHA1TestCase(VppTestCase):
"""Bidirectional Forwarding Detection (BFD) (SHA1 auth) """
bfd_key_id=self.vpp_session.bfd_key_id)
bfd_session_up(self)
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_hold_up(self):
""" hold BFD session up """
key = self.factory.create_random_key(self)
self.test_session.send_packet()
self.assert_equal(self.vpp_session.state, BFDState.up, BFDState)
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_hold_up_meticulous(self):
""" hold BFD session up - meticulous auth """
key = self.factory.create_random_key(
self.test_session.send_packet()
self.assert_equal(self.vpp_session.state, BFDState.up, BFDState)
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_send_bad_seq_number(self):
""" session is not kept alive by msgs with bad sequence numbers"""
key = self.factory.create_random_key(
wait_for_bfd_packet(self)
self.assert_equal(self.vpp_session.state, BFDState.up, BFDState)
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_mismatch_auth(self):
""" session is not brought down by unauthenticated msg """
key = self.factory.create_random_key(self)
legitimate_test_session,
rogue_test_session)
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_mismatch_bfd_key_id(self):
""" session is not brought down by msg with non-existent key-id """
key = self.factory.create_random_key(self)
legitimate_test_session,
rogue_test_session)
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_mismatched_auth_type(self):
""" session is not brought down by msg with wrong auth type """
key = self.factory.create_random_key(self)
vpp_session, legitimate_test_session, rogue_test_session,
{'auth_type': BFDAuthType.keyed_md5})
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
def test_restart(self):
""" simulate remote peer restart and resynchronization """
key = self.factory.create_random_key(
# don't send any packets for 2*detection_time
detection_time = self.test_session.detect_mult *\
self.vpp_session.required_min_rx / USEC_IN_SEC
- self.sleep(2*detection_time, "simulating peer restart")
+ self.sleep(2 * detection_time, "simulating peer restart")
events = self.vapi.collect_events()
self.assert_equal(len(events), 1, "number of bfd events")
verify_event(self, events[0], expected_state=BFDState.down)
bfd_session_up(self)
+@unittest.skipUnless(running_extended_tests(), "part of extended tests")
class BFDAuthOnOffTestCase(VppTestCase):
"""Bidirectional Forwarding Detection (BFD) (changing auth) """
"number of bfd events")
+@unittest.skipUnless(running_extended_tests(), "part of extended tests")
class BFDCLITestCase(VppTestCase):
"""Bidirectional Forwarding Detection (BFD) (CLI) """
pg0 = None
Code Review / vpp.git / blobdiff