import unittest
from framework import VppTestCase, VppTestRunner
-from vpp_sub_interface import VppSubInterface, VppDot1QSubint, VppDot1ADSubint
-from vpp_ip_route import VppIpMRoute, VppMRoutePath, VppMFibSignal
+from vpp_ip import DpoProto
+from vpp_ip_route import VppIpMRoute, VppMRoutePath, VppMFibSignal, \
+ MRouteItfFlags, MRouteEntryFlags, VppIpTable
from scapy.packet import Raw
from scapy.layers.l2 import Ether
from scapy.layers.inet import IP, UDP, getmacbyip
from scapy.layers.inet6 import IPv6, getmacbyip6
-from util import ppp
-
-
-class MRouteItfFlags:
- MFIB_ITF_FLAG_NONE = 0
- MFIB_ITF_FLAG_NEGATE_SIGNAL = 1
- MFIB_ITF_FLAG_ACCEPT = 2
- MFIB_ITF_FLAG_FORWARD = 4
- MFIB_ITF_FLAG_SIGNAL_PRESENT = 8
- MFIB_ITF_FLAG_INTERNAL_COPY = 16
-
-
-class MRouteEntryFlags:
- MFIB_ENTRY_FLAG_NONE = 0
- MFIB_ENTRY_FLAG_SIGNAL = 1
- MFIB_ENTRY_FLAG_DROP = 2
- MFIB_ENTRY_FLAG_CONNECTED = 4
- MFIB_ENTRY_FLAG_INHERIT_ACCEPT = 8
#
-# The number of packets sent is set to 90 so that when we replicate more than 3
+# The number of packets sent is set to 91 so that when we replicate more than 3
# times, which we do for some entries, we will generate more than 256 packets
# to the next node in the VLIB graph. Thus we are testing the code's
-# correctness handling this over-flow
+# correctness handling this over-flow.
+# It's also an odd number so we hit any single loops.
#
-N_PKTS_IN_STREAM = 90
+N_PKTS_IN_STREAM = 91
class TestMFIB(VppTestCase):
if error:
self.logger.critical(error)
- self.assertEqual(error.find("Failed"), -1)
+ self.assertNotIn("Failed", error)
class TestIPMcast(VppTestCase):
def setUp(self):
super(TestIPMcast, self).setUp()
- # create 4 pg interfaces
- self.create_pg_interfaces(range(4))
+ # create 8 pg interfaces
+ self.create_pg_interfaces(range(9))
# setup interfaces
- for i in self.pg_interfaces:
+ for i in self.pg_interfaces[:8]:
i.admin_up()
i.config_ip4()
i.config_ip6()
i.resolve_arp()
i.resolve_ndp()
- def create_stream_ip4(self, src_if, src_ip, dst_ip):
+ # one more in a vrf
+ tbl4 = VppIpTable(self, 10)
+ tbl4.add_vpp_config()
+ self.pg8.set_table_ip4(10)
+ self.pg8.config_ip4()
+
+ tbl6 = VppIpTable(self, 10, is_ip6=1)
+ tbl6.add_vpp_config()
+ self.pg8.set_table_ip6(10)
+ self.pg8.config_ip6()
+
+ def tearDown(self):
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.unconfig_ip6()
+ i.admin_down()
+
+ self.pg8.set_table_ip4(0)
+ self.pg8.set_table_ip6(0)
+ super(TestIPMcast, self).tearDown()
+
+ def create_stream_ip4(self, src_if, src_ip, dst_ip, payload_size=0):
pkts = []
+ # default to small packet sizes
+ p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
+ IP(src=src_ip, dst=dst_ip) /
+ UDP(sport=1234, dport=1234))
+ if not payload_size:
+ payload_size = 64 - len(p)
+ p = p / Raw('\xa5' * payload_size)
+
for i in range(0, N_PKTS_IN_STREAM):
- info = self.create_packet_info(src_if, src_if)
- payload = self.info_to_payload(info)
- p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
- IP(src=src_ip, dst=dst_ip) /
- UDP(sport=1234, dport=1234) /
- Raw(payload))
- info.data = p.copy()
pkts.append(p)
return pkts
def verify_filter(self, capture, sent):
if not len(capture) == len(sent):
- # filter out any IPv6 RAs from the captur
+ # filter out any IPv6 RAs from the capture
for p in capture:
if (p.haslayer(IPv6)):
capture.remove(p)
return capture
- def verify_capture_ip4(self, src_if, sent):
- rxd = self.pg1.get_capture(N_PKTS_IN_STREAM)
+ def verify_capture_ip4(self, rx_if, sent, dst_mac=None):
+ rxd = rx_if.get_capture(len(sent))
try:
capture = self.verify_filter(rxd, sent)
tx = sent[i]
rx = capture[i]
- # the rx'd packet has the MPLS label popped
eth = rx[Ether]
self.assertEqual(eth.type, 0x800)
tx_ip = tx[IP]
rx_ip = rx[IP]
+ if dst_mac is None:
+ dst_mac = getmacbyip(rx_ip.dst)
+
# check the MAC address on the RX'd packet is correctly formed
- self.assertEqual(eth.dst, getmacbyip(rx_ip.dst))
+ self.assertEqual(eth.dst, dst_mac)
self.assertEqual(rx_ip.src, tx_ip.src)
self.assertEqual(rx_ip.dst, tx_ip.dst)
except:
raise
- def verify_capture_ip6(self, src_if, sent):
- capture = self.pg1.get_capture(N_PKTS_IN_STREAM)
+ def verify_capture_ip6(self, rx_if, sent):
+ capture = rx_if.get_capture(len(sent))
self.assertEqual(len(capture), len(sent))
tx = sent[i]
rx = capture[i]
- # the rx'd packet has the MPLS label popped
eth = rx[Ether]
self.assertEqual(eth.type, 0x86DD)
#
# A (*,G).
- # one accepting interface, pg0, 3 forwarding interfaces
+ # one accepting interface, pg0, 7 forwarding interfaces
+ # many forwarding interfaces test the case where the replicate DPO
+ # needs to use extra cache lines for the buckets.
#
route_232_1_1_1 = VppIpMRoute(
self,
VppMRoutePath(self.pg2.sw_if_index,
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
VppMRoutePath(self.pg3.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
+ VppMRoutePath(self.pg4.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
+ VppMRoutePath(self.pg5.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
+ VppMRoutePath(self.pg6.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
+ VppMRoutePath(self.pg7.sw_if_index,
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
route_232_1_1_1.add_vpp_config()
route_1_1_1_1_232_1_1_1 = VppIpMRoute(
self,
"1.1.1.1",
- "232.1.1.1", 64,
+ "232.1.1.1", 27, # any grp-len is ok when src is set
MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
[VppMRoutePath(self.pg0.sw_if_index,
MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
route_1_1_1_1_232_1_1_1.add_vpp_config()
+ #
+ # An (S,G).
+ # one accepting interface, pg0, 2 forwarding interfaces
+ # that use unicast next-hops
+ #
+ route_1_1_1_1_232_1_1_2 = VppIpMRoute(
+ self,
+ "1.1.1.1",
+ "232.1.1.2", 64,
+ MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ [VppMRoutePath(self.pg0.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
+ VppMRoutePath(self.pg1.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
+ nh=self.pg1.remote_ip4),
+ VppMRoutePath(self.pg2.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
+ nh=self.pg2.remote_ip4)])
+ route_1_1_1_1_232_1_1_2.add_vpp_config()
+
#
# An (*,G/m).
# one accepting interface, pg0, 1 forwarding interfaces
#
# a stream that matches the route for (1.1.1.1,232.1.1.1)
+ # small packets
#
self.vapi.cli("clear trace")
tx = self.create_stream_ip4(self.pg0, "1.1.1.1", "232.1.1.1")
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- # We expect replications on Pg1, 2,
+ self.assertEqual(route_1_1_1_1_232_1_1_1.get_stats()['packets'],
+ len(tx))
+
+ # We expect replications on Pg1->7
+ self.verify_capture_ip4(self.pg1, tx)
+ self.verify_capture_ip4(self.pg2, tx)
+
+ # no replications on Pg0
+ self.pg0.assert_nothing_captured(
+ remark="IP multicast packets forwarded on PG0")
+ self.pg3.assert_nothing_captured(
+ remark="IP multicast packets forwarded on PG3")
+
+ #
+ # a stream that matches the route for (1.1.1.1,232.1.1.1)
+ # large packets
+ #
+ self.vapi.cli("clear trace")
+ tx = self.create_stream_ip4(self.pg0, "1.1.1.1", "232.1.1.1",
+ payload_size=1024)
+ self.pg0.add_stream(tx)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ # We expect replications on Pg1->7
self.verify_capture_ip4(self.pg1, tx)
self.verify_capture_ip4(self.pg2, tx)
+ self.assertEqual(route_1_1_1_1_232_1_1_1.get_stats()['packets'],
+ 2*len(tx))
+
# no replications on Pg0
self.pg0.assert_nothing_captured(
remark="IP multicast packets forwarded on PG0")
self.pg3.assert_nothing_captured(
remark="IP multicast packets forwarded on PG3")
+ #
+ # a stream to the unicast next-hops
+ #
+ self.vapi.cli("clear trace")
+ tx = self.create_stream_ip4(self.pg0, "1.1.1.1", "232.1.1.2")
+ self.pg0.add_stream(tx)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ # We expect replications on Pg1->7
+ self.verify_capture_ip4(self.pg1, tx, dst_mac=self.pg1.remote_mac)
+ self.verify_capture_ip4(self.pg2, tx, dst_mac=self.pg2.remote_mac)
+
+ # no replications on Pg0 nor pg3
+ self.pg0.assert_nothing_captured(
+ remark="IP multicast packets forwarded on PG0")
+ self.pg3.assert_nothing_captured(
+ remark="IP multicast packets forwarded on PG3")
+
#
# a stream that matches the route for (*,232.0.0.0/8)
# Send packets with the 9th bit set so we test the correct clearing
# We expect replications on Pg1 only
self.verify_capture_ip4(self.pg1, tx)
+ self.assertEqual(route_232.get_stats()['packets'], len(tx))
# no replications on Pg0, Pg2 not Pg3
self.pg0.assert_nothing_captured(
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- # We expect replications on Pg1, 2, 3.
+ # We expect replications on Pg1->7
self.verify_capture_ip4(self.pg1, tx)
self.verify_capture_ip4(self.pg2, tx)
self.verify_capture_ip4(self.pg3, tx)
+ self.verify_capture_ip4(self.pg4, tx)
+ self.verify_capture_ip4(self.pg5, tx)
+ self.verify_capture_ip4(self.pg6, tx)
+ self.verify_capture_ip4(self.pg7, tx)
# no replications on Pg0
self.pg0.assert_nothing_captured(
remark="IP multicast packets forwarded on PG0")
- route_232_1_1_1.remove_vpp_config()
- route_1_1_1_1_232_1_1_1.remove_vpp_config()
- route_232.remove_vpp_config()
-
def test_ip6_mcast(self):
""" IPv6 Multicast Replication """
"ff01::1", 128,
MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
[VppMRoutePath(self.pg0.sw_if_index,
- MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT,
+ proto=DpoProto.DPO_PROTO_IP6),
VppMRoutePath(self.pg1.sw_if_index,
- MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
+ proto=DpoProto.DPO_PROTO_IP6),
VppMRoutePath(self.pg2.sw_if_index,
- MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
+ proto=DpoProto.DPO_PROTO_IP6),
VppMRoutePath(self.pg3.sw_if_index,
- MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)],
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
+ proto=DpoProto.DPO_PROTO_IP6)],
is_ip6=1)
route_ff01_1.add_vpp_config()
route_2001_ff01_1 = VppIpMRoute(
self,
"2001::1",
- "ff01::1", 256,
+ "ff01::1", 0, # any grp-len is ok when src is set
MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
[VppMRoutePath(self.pg0.sw_if_index,
- MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT,
+ proto=DpoProto.DPO_PROTO_IP6),
VppMRoutePath(self.pg1.sw_if_index,
- MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
+ proto=DpoProto.DPO_PROTO_IP6),
VppMRoutePath(self.pg2.sw_if_index,
- MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)],
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
+ proto=DpoProto.DPO_PROTO_IP6)],
is_ip6=1)
route_2001_ff01_1.add_vpp_config()
"ff01::", 16,
MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
[VppMRoutePath(self.pg0.sw_if_index,
- MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT,
+ proto=DpoProto.DPO_PROTO_IP6),
VppMRoutePath(self.pg1.sw_if_index,
- MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)],
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
+ proto=DpoProto.DPO_PROTO_IP6)],
is_ip6=1)
route_ff01.add_vpp_config()
#
# a stream that matches the route for (*, ff01::/16)
+ # sent on the non-accepting interface
+ #
+ self.vapi.cli("clear trace")
+ tx = self.create_stream_ip6(self.pg1, "2002::1", "ff01:2::255")
+ self.send_and_assert_no_replies(self.pg1, tx, "RPF miss")
+
+ #
+ # a stream that matches the route for (*, ff01::/16)
+ # sent on the accepting interface
#
self.vapi.cli("clear trace")
tx = self.create_stream_ip6(self.pg0, "2002::1", "ff01:2::255")
self.pg3.assert_nothing_captured(
remark="IP multicast packets forwarded on PG3")
+ #
+ # Bounce the interface and it should still work
+ #
+ self.pg1.admin_down()
+ self.pg0.add_stream(tx)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ self.pg1.assert_nothing_captured(
+ remark="IP multicast packets forwarded on down PG1")
+
+ self.pg1.admin_up()
+ self.pg0.add_stream(tx)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ self.verify_capture_ip6(self.pg1, tx)
+
#
# a stream that matches the route for (*,ff01::1)
#
self.pg3.assert_nothing_captured(
remark="IP multicast packets forwarded on PG3")
- route_ff01.remove_vpp_config()
- route_ff01_1.remove_vpp_config()
- route_2001_ff01_1.remove_vpp_config()
-
def _mcast_connected_send_stream(self, dst_ip):
self.vapi.cli("clear trace")
tx = self.create_stream_ip4(self.pg0,
signal_232_1_1_1_itf_0.compare(signals[1])
signal_232_1_1_2_itf_0.compare(signals[0])
- route_232_1_1_1.remove_vpp_config()
- route_232_1_1_2.remove_vpp_config()
+ route_232_1_1_1.update_entry_flags(
+ MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE)
+ route_232_1_1_2.update_entry_flags(
+ MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE)
def test_ip_mcast_signal(self):
""" IP Multicast Signal """
(MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT |
MRouteItfFlags.MFIB_ITF_FLAG_NEGATE_SIGNAL))
+ self.vapi.cli("clear trace")
tx = self._mcast_connected_send_stream("232.1.1.1")
signals = self.vapi.mfib_signal_dump()
signals = self.vapi.mfib_signal_dump()
self.assertEqual(0, len(signals))
+ def test_ip_mcast_vrf(self):
+ """ IP Multicast Replication in non-default table"""
+
#
- # Cleanup
+ # An (S,G).
+ # one accepting interface, pg0, 2 forwarding interfaces
#
- route_232_1_1_1.remove_vpp_config()
+ route_1_1_1_1_232_1_1_1 = VppIpMRoute(
+ self,
+ "1.1.1.1",
+ "232.1.1.1", 64,
+ MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ [VppMRoutePath(self.pg8.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
+ VppMRoutePath(self.pg1.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
+ VppMRoutePath(self.pg2.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)],
+ table_id=10)
+ route_1_1_1_1_232_1_1_1.add_vpp_config()
+
+ #
+ # a stream that matches the route for (1.1.1.1,232.1.1.1)
+ # small packets
+ #
+ self.vapi.cli("clear trace")
+ tx = self.create_stream_ip4(self.pg8, "1.1.1.1", "232.1.1.1")
+ self.pg8.add_stream(tx)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ # We expect replications on Pg1 & 2
+ self.verify_capture_ip4(self.pg1, tx)
+ self.verify_capture_ip4(self.pg2, tx)
+
+ def test_ip6_mcast_vrf(self):
+ """ IPv6 Multicast Replication in non-default table"""
+
+ #
+ # An (S,G).
+ # one accepting interface, pg0, 2 forwarding interfaces
+ #
+ route_2001_ff01_1 = VppIpMRoute(
+ self,
+ "2001::1",
+ "ff01::1", 256,
+ MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ [VppMRoutePath(self.pg8.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT,
+ proto=DpoProto.DPO_PROTO_IP6),
+ VppMRoutePath(self.pg1.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
+ proto=DpoProto.DPO_PROTO_IP6),
+ VppMRoutePath(self.pg2.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
+ proto=DpoProto.DPO_PROTO_IP6)],
+ table_id=10,
+ is_ip6=1)
+ route_2001_ff01_1.add_vpp_config()
+
+ #
+ # a stream that matches the route for (2001::1, ff00::1)
+ #
+ self.vapi.cli("clear trace")
+ tx = self.create_stream_ip6(self.pg8, "2001::1", "ff01::1")
+ self.pg8.add_stream(tx)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ # We expect replications on Pg1, 2,
+ self.verify_capture_ip6(self.pg1, tx)
+ self.verify_capture_ip6(self.pg2, tx)
+
+ def test_bidir(self):
+ """ IP Multicast Bi-directional """
+
+ #
+ # A (*,G). The set of accepting interfaces matching the forwarding
+ #
+ route_232_1_1_1 = VppIpMRoute(
+ self,
+ "0.0.0.0",
+ "232.1.1.1", 32,
+ MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ [VppMRoutePath(self.pg0.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT |
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
+ VppMRoutePath(self.pg1.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT |
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
+ VppMRoutePath(self.pg2.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT |
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
+ VppMRoutePath(self.pg3.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT |
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
+ route_232_1_1_1.add_vpp_config()
+
+ tx = self.create_stream_ip4(self.pg0, "1.1.1.1", "232.1.1.1")
+ self.pg0.add_stream(tx)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ # We expect replications on Pg1, 2, 3, but not on pg0
+ self.verify_capture_ip4(self.pg1, tx)
+ self.verify_capture_ip4(self.pg2, tx)
+ self.verify_capture_ip4(self.pg3, tx)
+ self.pg0.assert_nothing_captured(
+ remark="IP multicast packets forwarded on PG0")
if __name__ == '__main__':
Code Review / vpp.git / blobdiff