-#!/usr/bin/env python
+#!/usr/bin/env python3
import unittest
-import socket
-
-from framework import VppTestCase, VppTestRunner
-from vpp_ip_route import VppIpRoute, VppRoutePath, VppMplsRoute, \
- VppMplsIpBind
+from framework import VppTestCase
+from asfframework import VppTestRunner, tag_fixme_vpp_workers
+from vpp_ip import INVALID_INDEX
+from vpp_ip_route import (
+ VppIpRoute,
+ VppRoutePath,
+ VppMplsRoute,
+ VppMplsIpBind,
+ VppIpMRoute,
+ VppMRoutePath,
+ VppIpTable,
+ VppMplsTable,
+ VppMplsLabel,
+ MplsLspMode,
+ find_mpls_route,
+ FibPathProto,
+ FibPathType,
+ FibPathFlags,
+ VppMplsLabel,
+ MplsLspMode,
+)
+from vpp_mpls_tunnel_interface import VppMPLSTunnelInterface
+from vpp_papi import VppEnum
+
+import scapy.compat
from scapy.packet import Raw
-from scapy.layers.l2 import Ether
-from scapy.layers.inet import IP, UDP, ICMP
-from scapy.layers.inet6 import IPv6
+from scapy.layers.l2 import Ether, ARP
+from scapy.layers.inet import IP, UDP, ICMP, icmptypes, icmpcodes
+from scapy.layers.inet6 import (
+ IPv6,
+ ICMPv6TimeExceeded,
+ ICMPv6EchoRequest,
+ ICMPv6PacketTooBig,
+)
from scapy.contrib.mpls import MPLS
+NUM_PKTS = 67
+
+# scapy removed these attributes.
+# we asked that they be restored: https://github.com/secdev/scapy/pull/1878
+# semantic names have more meaning than numbers. so here they are.
+ARP.who_has = 1
+ARP.is_at = 2
+
+
+def verify_filter(capture, sent):
+ if not len(capture) == len(sent):
+ # filter out any IPv6 RAs from the capture
+ for p in capture:
+ if p.haslayer(IPv6):
+ capture.remove(p)
+ return capture
+
+
+def verify_mpls_stack(tst, rx, mpls_labels):
+ # the rx'd packet has the MPLS label popped
+ eth = rx[Ether]
+ tst.assertEqual(eth.type, 0x8847)
+
+ rx_mpls = rx[MPLS]
+
+ for ii in range(len(mpls_labels)):
+ tst.assertEqual(rx_mpls.label, mpls_labels[ii].value)
+ tst.assertEqual(rx_mpls.cos, mpls_labels[ii].exp)
+ tst.assertEqual(rx_mpls.ttl, mpls_labels[ii].ttl)
+ if ii == len(mpls_labels) - 1:
+ tst.assertEqual(rx_mpls.s, 1)
+ else:
+ # not end of stack
+ tst.assertEqual(rx_mpls.s, 0)
+ # pop the label to expose the next
+ rx_mpls = rx_mpls[MPLS].payload
+
+
+@tag_fixme_vpp_workers
class TestMPLS(VppTestCase):
- """ MPLS Test Case """
+ """MPLS Test Case"""
@classmethod
def setUpClass(cls):
super(TestMPLS, cls).setUpClass()
+ @classmethod
+ def tearDownClass(cls):
+ super(TestMPLS, cls).tearDownClass()
+
def setUp(self):
super(TestMPLS, self).setUp()
# create 2 pg interfaces
- self.create_pg_interfaces(range(2))
+ self.create_pg_interfaces(range(4))
# setup both interfaces
# assign them different tables.
table_id = 0
+ self.tables = []
+
+ tbl = VppMplsTable(self, 0)
+ tbl.add_vpp_config()
+ self.tables.append(tbl)
for i in self.pg_interfaces:
i.admin_up()
+
+ if table_id != 0:
+ tbl = VppIpTable(self, table_id)
+ tbl.add_vpp_config()
+ self.tables.append(tbl)
+ tbl = VppIpTable(self, table_id, is_ip6=1)
+ tbl.add_vpp_config()
+ self.tables.append(tbl)
+
i.set_table_ip4(table_id)
i.set_table_ip6(table_id)
i.config_ip4()
table_id += 1
def tearDown(self):
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.unconfig_ip6()
+ i.set_table_ip4(0)
+ i.set_table_ip6(0)
+ i.disable_mpls()
+ i.admin_down()
super(TestMPLS, self).tearDown()
# the default of 64 matches the IP packet TTL default
def create_stream_labelled_ip4(
- self,
- src_if,
- mpls_labels,
- mpls_ttl=255,
- ping=0,
- ip_itf=None):
+ self,
+ src_if,
+ mpls_labels,
+ ping=0,
+ ip_itf=None,
+ dst_ip=None,
+ chksum=None,
+ ip_ttl=64,
+ n=257,
+ ):
self.reset_packet_infos()
pkts = []
- for i in range(0, 257):
+ for i in range(0, n):
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)
for ii in range(len(mpls_labels)):
- if ii == len(mpls_labels) - 1:
- p = p / MPLS(label=mpls_labels[ii], ttl=mpls_ttl, s=1)
- else:
- p = p / MPLS(label=mpls_labels[ii], ttl=mpls_ttl, s=0)
+ p = p / MPLS(
+ label=mpls_labels[ii].value,
+ ttl=mpls_labels[ii].ttl,
+ cos=mpls_labels[ii].exp,
+ )
if not ping:
- p = (p / IP(src=src_if.local_ip4, dst=src_if.remote_ip4) /
- UDP(sport=1234, dport=1234) /
- Raw(payload))
+ if not dst_ip:
+ p = (
+ p
+ / IP(src=src_if.local_ip4, dst=src_if.remote_ip4, ttl=ip_ttl)
+ / UDP(sport=1234, dport=1234)
+ / Raw(payload)
+ )
+ else:
+ p = (
+ p
+ / IP(src=src_if.local_ip4, dst=dst_ip, ttl=ip_ttl)
+ / UDP(sport=1234, dport=1234)
+ / Raw(payload)
+ )
else:
- p = (p / IP(src=ip_itf.remote_ip4,
- dst=ip_itf.local_ip4) /
- ICMP())
-
+ p = (
+ p
+ / IP(src=ip_itf.remote_ip4, dst=ip_itf.local_ip4, ttl=ip_ttl)
+ / ICMP()
+ )
+
+ if chksum:
+ p[IP].chksum = chksum
info.data = p.copy()
pkts.append(p)
return pkts
- def create_stream_ip4(self, src_if, dst_ip):
+ def create_stream_ip4(
+ self, src_if, dst_ip, ip_ttl=64, ip_dscp=0, payload_size=None
+ ):
self.reset_packet_infos()
pkts = []
for i in range(0, 257):
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_if.remote_ip4, dst=dst_ip) /
- UDP(sport=1234, dport=1234) /
- Raw(payload))
+ p = (
+ Ether(dst=src_if.local_mac, src=src_if.remote_mac)
+ / IP(src=src_if.remote_ip4, dst=dst_ip, ttl=ip_ttl, tos=ip_dscp)
+ / UDP(sport=1234, dport=1234)
+ / Raw(payload)
+ )
info.data = p.copy()
+ if payload_size:
+ self.extend_packet(p, payload_size)
pkts.append(p)
return pkts
- def create_stream_labelled_ip6(self, src_if, mpls_label, mpls_ttl):
+ def create_stream_ip6(self, src_if, dst_ip, ip_ttl=64, ip_dscp=0):
self.reset_packet_infos()
pkts = []
for i in range(0, 257):
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) /
- MPLS(label=mpls_label, ttl=mpls_ttl) /
- IPv6(src=src_if.remote_ip6, dst=src_if.remote_ip6) /
- UDP(sport=1234, dport=1234) /
- Raw(payload))
+ p = (
+ Ether(dst=src_if.local_mac, src=src_if.remote_mac)
+ / IPv6(src=src_if.remote_ip6, dst=dst_ip, hlim=ip_ttl, tc=ip_dscp)
+ / UDP(sport=1234, dport=1234)
+ / Raw(payload)
+ )
info.data = p.copy()
pkts.append(p)
return pkts
- @staticmethod
- def verify_filter(capture, sent):
- if not len(capture) == len(sent):
- # filter out any IPv6 RAs from the capture
- for p in capture:
- if p.haslayer(IPv6):
- capture.remove(p)
- return capture
+ def create_stream_labelled_ip6(
+ self, src_if, mpls_labels, hlim=64, dst_ip=None, ping=0, ip_itf=None
+ ):
+ if dst_ip is None:
+ dst_ip = src_if.remote_ip6
+ self.reset_packet_infos()
+ pkts = []
+ for i in range(0, 257):
+ 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)
+ for l in mpls_labels:
+ p = p / MPLS(label=l.value, ttl=l.ttl, cos=l.exp)
+
+ if ping:
+ p = p / (
+ IPv6(src=ip_itf.remote_ip6, dst=ip_itf.local_ip6)
+ / ICMPv6EchoRequest()
+ )
+ else:
+ p = p / (
+ IPv6(src=src_if.remote_ip6, dst=dst_ip, hlim=hlim)
+ / UDP(sport=1234, dport=1234)
+ / Raw(payload)
+ )
+ info.data = p.copy()
+ pkts.append(p)
+ return pkts
- def verify_capture_ip4(self, src_if, capture, sent, ping_resp=0):
+ def verify_capture_ip4(
+ self, src_if, capture, sent, ping_resp=0, ip_ttl=None, ip_dscp=0
+ ):
try:
- capture = self.verify_filter(capture, sent)
+ capture = verify_filter(capture, sent)
self.assertEqual(len(capture), len(sent))
if not ping_resp:
self.assertEqual(rx_ip.src, tx_ip.src)
self.assertEqual(rx_ip.dst, tx_ip.dst)
- # IP processing post pop has decremented the TTL
- self.assertEqual(rx_ip.ttl + 1, tx_ip.ttl)
+ self.assertEqual(rx_ip.tos, ip_dscp)
+ if not ip_ttl:
+ # IP processing post pop has decremented the TTL
+ self.assertEqual(rx_ip.ttl + 1, tx_ip.ttl)
+ else:
+ self.assertEqual(rx_ip.ttl, ip_ttl)
else:
self.assertEqual(rx_ip.src, tx_ip.dst)
self.assertEqual(rx_ip.dst, tx_ip.src)
except:
raise
- def verify_mpls_stack(self, rx, mpls_labels, ttl=255, num=0):
- # the rx'd packet has the MPLS label popped
- eth = rx[Ether]
- self.assertEqual(eth.type, 0x8847)
+ def verify_capture_labelled_ip4(
+ self, src_if, capture, sent, mpls_labels, ip_ttl=None
+ ):
+ try:
+ capture = verify_filter(capture, sent)
- rx_mpls = rx[MPLS]
+ self.assertEqual(len(capture), len(sent))
- for ii in range(len(mpls_labels)):
- self.assertEqual(rx_mpls.label, mpls_labels[ii])
- self.assertEqual(rx_mpls.cos, 0)
- if ii == num:
- self.assertEqual(rx_mpls.ttl, ttl)
- else:
- self.assertEqual(rx_mpls.ttl, 255)
+ for i in range(len(capture)):
+ tx = sent[i]
+ rx = capture[i]
+ tx_ip = tx[IP]
+ rx_ip = rx[IP]
- if ii == len(mpls_labels) - 1:
- self.assertEqual(rx_mpls.s, 1)
- else:
- # not end of stack
- self.assertEqual(rx_mpls.s, 0)
- # pop the label to expose the next
- rx_mpls = rx_mpls[MPLS].payload
+ verify_mpls_stack(self, rx, mpls_labels)
+
+ self.assertEqual(rx_ip.src, tx_ip.src)
+ self.assertEqual(rx_ip.dst, tx_ip.dst)
+ if not ip_ttl:
+ # IP processing post pop has decremented the TTL
+ self.assertEqual(rx_ip.ttl + 1, tx_ip.ttl)
+ else:
+ self.assertEqual(rx_ip.ttl, ip_ttl)
+
+ except:
+ raise
- def verify_capture_labelled_ip4(self, src_if, capture, sent,
- mpls_labels):
+ def verify_capture_labelled_ip6(
+ self, src_if, capture, sent, mpls_labels, ip_ttl=None
+ ):
try:
- capture = self.verify_filter(capture, sent)
+ capture = verify_filter(capture, sent)
self.assertEqual(len(capture), len(sent))
for i in range(len(capture)):
tx = sent[i]
rx = capture[i]
- tx_ip = tx[IP]
- rx_ip = rx[IP]
+ tx_ip = tx[IPv6]
+ rx_ip = rx[IPv6]
- # the MPLS TTL is copied from the IP
- self.verify_mpls_stack(
- rx, mpls_labels, rx_ip.ttl, len(mpls_labels) - 1)
+ verify_mpls_stack(self, rx, mpls_labels)
self.assertEqual(rx_ip.src, tx_ip.src)
self.assertEqual(rx_ip.dst, tx_ip.dst)
- # IP processing post pop has decremented the TTL
- self.assertEqual(rx_ip.ttl + 1, tx_ip.ttl)
+ if not ip_ttl:
+ # IP processing post pop has decremented the TTL
+ self.assertEqual(rx_ip.hlim + 1, tx_ip.hlim)
+ else:
+ self.assertEqual(rx_ip.hlim, ip_ttl)
except:
raise
def verify_capture_tunneled_ip4(self, src_if, capture, sent, mpls_labels):
try:
- capture = self.verify_filter(capture, sent)
+ capture = verify_filter(capture, sent)
self.assertEqual(len(capture), len(sent))
tx_ip = tx[IP]
rx_ip = rx[IP]
- # the MPLS TTL is 255 since it enters a new tunnel
- self.verify_mpls_stack(
- rx, mpls_labels, 255, len(mpls_labels) - 1)
+ verify_mpls_stack(self, rx, mpls_labels)
self.assertEqual(rx_ip.src, tx_ip.src)
self.assertEqual(rx_ip.dst, tx_ip.dst)
except:
raise
- def verify_capture_labelled(self, src_if, capture, sent,
- mpls_labels, ttl=254, num=0):
+ def verify_capture_labelled(self, src_if, capture, sent, mpls_labels):
try:
- capture = self.verify_filter(capture, sent)
+ capture = verify_filter(capture, sent)
self.assertEqual(len(capture), len(sent))
for i in range(len(capture)):
rx = capture[i]
- self.verify_mpls_stack(rx, mpls_labels, ttl, num)
+ verify_mpls_stack(self, rx, mpls_labels)
except:
raise
- def verify_capture_ip6(self, src_if, capture, sent):
+ def verify_capture_ip6(
+ self, src_if, capture, sent, ip_hlim=None, ip_dscp=0, ping_resp=0
+ ):
try:
self.assertEqual(len(capture), len(sent))
tx_ip = tx[IPv6]
rx_ip = rx[IPv6]
+ if not ping_resp:
+ self.assertEqual(rx_ip.src, tx_ip.src)
+ self.assertEqual(rx_ip.dst, tx_ip.dst)
+ self.assertEqual(rx_ip.tc, ip_dscp)
+ # IP processing post pop has decremented the TTL
+ if not ip_hlim:
+ self.assertEqual(rx_ip.hlim + 1, tx_ip.hlim)
+ else:
+ self.assertEqual(rx_ip.hlim, ip_hlim)
+ else:
+ self.assertEqual(rx_ip.src, tx_ip.dst)
+ self.assertEqual(rx_ip.dst, tx_ip.src)
+ except:
+ raise
+
+ def verify_capture_ip6_icmp(self, src_if, capture, sent):
+ try:
+ # rate limited ICMP
+ self.assertTrue(len(capture) <= len(sent))
+
+ for i in range(len(capture)):
+ tx = sent[i]
+ rx = capture[i]
+
+ # the rx'd packet has the MPLS label popped
+ eth = rx[Ether]
+ self.assertEqual(eth.type, 0x86DD)
+
+ tx_ip = tx[IPv6]
+ rx_ip = rx[IPv6]
+
+ self.assertEqual(rx_ip.dst, tx_ip.src)
+ # ICMP sourced from the interface's address
+ self.assertEqual(rx_ip.src, src_if.local_ip6)
+ # hop-limit reset to 255 for IMCP packet
+ self.assertEqual(rx_ip.hlim, 255)
+
+ icmp = rx[ICMPv6TimeExceeded]
+
+ except:
+ raise
+
+ def verify_capture_fragmented_labelled_ip4(
+ self, src_if, capture, sent, mpls_labels, ip_ttl=None
+ ):
+ try:
+ capture = verify_filter(capture, sent)
+
+ for i in range(len(capture)):
+ tx = sent[0]
+ rx = capture[i]
+ tx_ip = tx[IP]
+ rx_ip = rx[IP]
+
+ verify_mpls_stack(self, rx, mpls_labels)
+
self.assertEqual(rx_ip.src, tx_ip.src)
self.assertEqual(rx_ip.dst, tx_ip.dst)
- # IP processing post pop has decremented the TTL
- self.assertEqual(rx_ip.hlim + 1, tx_ip.hlim)
+ if not ip_ttl:
+ # IP processing post pop has decremented the TTL
+ self.assertEqual(rx_ip.ttl + 1, tx_ip.ttl)
+ else:
+ self.assertEqual(rx_ip.ttl, ip_ttl)
+
+ except:
+ raise
+
+ def verify_capture_fragmented_labelled_ip6(
+ self, src_if, capture, sent, mpls_labels, ip_ttl=None
+ ):
+ try:
+ capture = verify_filter(capture, sent)
+
+ for i in range(len(capture)):
+ tx = sent[0]
+ rx = capture[i]
+ tx_ip = tx[IPv6]
+ rx.show()
+ rx_ip = IPv6(rx[MPLS].payload)
+ rx_ip.show()
+
+ verify_mpls_stack(self, rx, mpls_labels)
+ self.assertEqual(rx_ip.src, tx_ip.src)
+ self.assertEqual(rx_ip.dst, tx_ip.dst)
+ if not ip_ttl:
+ # IP processing post pop has decremented the hop-limit
+ self.assertEqual(rx_ip.hlim + 1, tx_ip.hlim)
+ else:
+ self.assertEqual(rx_ip.hlim, ip_ttl)
except:
raise
def test_swap(self):
- """ MPLS label swap tests """
+ """MPLS label swap tests"""
#
# A simple MPLS xconnect - eos label in label out
#
- route_32_eos = VppMplsRoute(self, 32, 1,
- [VppRoutePath(self.pg0.remote_ip4,
- self.pg0.sw_if_index,
- labels=[33])])
+ route_32_eos = VppMplsRoute(
+ self,
+ 32,
+ 1,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip4, self.pg0.sw_if_index, labels=[VppMplsLabel(33)]
+ )
+ ],
+ )
route_32_eos.add_vpp_config()
+ self.assertTrue(
+ find_mpls_route(
+ self,
+ 0,
+ 32,
+ 1,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(33)],
+ )
+ ],
+ )
+ )
+
#
# a stream that matches the route for 10.0.0.1
# PG0 is in the default table
#
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip4(self.pg0, [32])
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
+ tx = self.create_stream_labelled_ip4(
+ self.pg0, [VppMplsLabel(32, ttl=32, exp=1)]
+ )
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled(
+ self.pg0, rx, tx, [VppMplsLabel(33, ttl=31, exp=1)]
+ )
- rx = self.pg0.get_capture()
- self.verify_capture_labelled_ip4(self.pg0, rx, tx, [33])
+ self.assertEqual(route_32_eos.get_stats_to()["packets"], 257)
#
# A simple MPLS xconnect - non-eos label in label out
#
- route_32_neos = VppMplsRoute(self, 32, 0,
- [VppRoutePath(self.pg0.remote_ip4,
- self.pg0.sw_if_index,
- labels=[33])])
+ route_32_neos = VppMplsRoute(
+ self,
+ 32,
+ 0,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip4, self.pg0.sw_if_index, labels=[VppMplsLabel(33)]
+ )
+ ],
+ )
route_32_neos.add_vpp_config()
#
# a stream that matches the route for 10.0.0.1
# PG0 is in the default table
#
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip4(self.pg0, [32, 99])
- self.pg0.add_stream(tx)
+ tx = self.create_stream_labelled_ip4(
+ self.pg0, [VppMplsLabel(32, ttl=21, exp=7), VppMplsLabel(99)]
+ )
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled(
+ self.pg0, rx, tx, [VppMplsLabel(33, ttl=20, exp=7), VppMplsLabel(99)]
+ )
+ self.assertEqual(route_32_neos.get_stats_to()["packets"], 257)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
+ #
+ # A simple MPLS xconnect - non-eos label in label out, uniform mode
+ #
+ route_42_neos = VppMplsRoute(
+ self,
+ 42,
+ 0,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(43, MplsLspMode.UNIFORM)],
+ )
+ ],
+ )
+ route_42_neos.add_vpp_config()
- rx = self.pg0.get_capture()
- self.verify_capture_labelled(self.pg0, rx, tx, [33, 99])
+ tx = self.create_stream_labelled_ip4(
+ self.pg0, [VppMplsLabel(42, ttl=21, exp=7), VppMplsLabel(99)]
+ )
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled(
+ self.pg0, rx, tx, [VppMplsLabel(43, ttl=20, exp=7), VppMplsLabel(99)]
+ )
#
# An MPLS xconnect - EOS label in IP out
#
- route_33_eos = VppMplsRoute(self, 33, 1,
- [VppRoutePath(self.pg0.remote_ip4,
- self.pg0.sw_if_index,
- labels=[])])
+ route_33_eos = VppMplsRoute(
+ self,
+ 33,
+ 1,
+ [VppRoutePath(self.pg0.remote_ip4, self.pg0.sw_if_index, labels=[])],
+ )
route_33_eos.add_vpp_config()
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip4(self.pg0, [33])
- self.pg0.add_stream(tx)
+ tx = self.create_stream_labelled_ip4(self.pg0, [VppMplsLabel(33)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_ip4(self.pg0, rx, tx)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
+ #
+ # disposed packets have an invalid IPv4 checksum
+ #
+ tx = self.create_stream_labelled_ip4(
+ self.pg0, [VppMplsLabel(33)], dst_ip=self.pg0.remote_ip4, n=65, chksum=1
+ )
+ self.send_and_assert_no_replies(self.pg0, tx, "Invalid Checksum")
- rx = self.pg0.get_capture()
- self.verify_capture_ip4(self.pg0, rx, tx)
+ #
+ # An MPLS xconnect - EOS label in IP out, uniform mode
+ #
+ route_3333_eos = VppMplsRoute(
+ self,
+ 3333,
+ 1,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(3, MplsLspMode.UNIFORM)],
+ )
+ ],
+ )
+ route_3333_eos.add_vpp_config()
+
+ tx = self.create_stream_labelled_ip4(
+ self.pg0, [VppMplsLabel(3333, ttl=55, exp=3)]
+ )
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_ip4(self.pg0, rx, tx, ip_ttl=54, ip_dscp=0x60)
+ tx = self.create_stream_labelled_ip4(
+ self.pg0, [VppMplsLabel(3333, ttl=66, exp=4)]
+ )
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_ip4(self.pg0, rx, tx, ip_ttl=65, ip_dscp=0x80)
+
+ #
+ # An MPLS xconnect - EOS label in IPv6 out
+ #
+ route_333_eos = VppMplsRoute(
+ self,
+ 333,
+ 1,
+ [VppRoutePath(self.pg0.remote_ip6, self.pg0.sw_if_index, labels=[])],
+ eos_proto=FibPathProto.FIB_PATH_NH_PROTO_IP6,
+ )
+ route_333_eos.add_vpp_config()
+
+ tx = self.create_stream_labelled_ip6(self.pg0, [VppMplsLabel(333)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_ip6(self.pg0, rx, tx)
+
+ #
+ # disposed packets have an TTL expired
+ #
+ tx = self.create_stream_labelled_ip6(
+ self.pg0, [VppMplsLabel(333, ttl=64)], dst_ip=self.pg1.remote_ip6, hlim=1
+ )
+ rx = self.send_and_expect_some(self.pg0, tx, self.pg0)
+ self.verify_capture_ip6_icmp(self.pg0, rx, tx)
+
+ #
+ # An MPLS xconnect - EOS label in IPv6 out w imp-null
+ #
+ route_334_eos = VppMplsRoute(
+ self,
+ 334,
+ 1,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip6, self.pg0.sw_if_index, labels=[VppMplsLabel(3)]
+ )
+ ],
+ eos_proto=FibPathProto.FIB_PATH_NH_PROTO_IP6,
+ )
+ route_334_eos.add_vpp_config()
+
+ tx = self.create_stream_labelled_ip6(self.pg0, [VppMplsLabel(334, ttl=64)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_ip6(self.pg0, rx, tx)
+
+ #
+ # An MPLS xconnect - EOS label in IPv6 out w imp-null in uniform mode
+ #
+ route_335_eos = VppMplsRoute(
+ self,
+ 335,
+ 1,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip6,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(3, MplsLspMode.UNIFORM)],
+ )
+ ],
+ eos_proto=FibPathProto.FIB_PATH_NH_PROTO_IP6,
+ )
+ route_335_eos.add_vpp_config()
+
+ tx = self.create_stream_labelled_ip6(
+ self.pg0, [VppMplsLabel(335, ttl=27, exp=4)]
+ )
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_ip6(self.pg0, rx, tx, ip_hlim=26, ip_dscp=0x80)
+
+ #
+ # disposed packets have an TTL expired
+ #
+ tx = self.create_stream_labelled_ip6(
+ self.pg0, [VppMplsLabel(334)], dst_ip=self.pg1.remote_ip6, hlim=0
+ )
+ rx = self.send_and_expect_some(self.pg0, tx, self.pg0)
+ self.verify_capture_ip6_icmp(self.pg0, rx, tx)
#
# An MPLS xconnect - non-EOS label in IP out - an invalid configuration
# so this traffic should be dropped.
#
- route_33_neos = VppMplsRoute(self, 33, 0,
- [VppRoutePath(self.pg0.remote_ip4,
- self.pg0.sw_if_index,
- labels=[])])
+ route_33_neos = VppMplsRoute(
+ self,
+ 33,
+ 0,
+ [VppRoutePath(self.pg0.remote_ip4, self.pg0.sw_if_index, labels=[])],
+ )
route_33_neos.add_vpp_config()
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip4(self.pg0, [33, 99])
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
- self.pg0.assert_nothing_captured(
- remark="MPLS non-EOS packets popped and forwarded")
+ tx = self.create_stream_labelled_ip4(
+ self.pg0, [VppMplsLabel(33), VppMplsLabel(99)]
+ )
+ self.send_and_assert_no_replies(
+ self.pg0, tx, "MPLS non-EOS packets popped and forwarded"
+ )
#
# A recursive EOS x-connect, which resolves through another x-connect
+ # in pipe mode
#
- route_34_eos = VppMplsRoute(self, 34, 1,
- [VppRoutePath("0.0.0.0",
- 0xffffffff,
- nh_via_label=32,
- labels=[44, 45])])
+ route_34_eos = VppMplsRoute(
+ self,
+ 34,
+ 1,
+ [
+ VppRoutePath(
+ "0.0.0.0",
+ 0xFFFFFFFF,
+ nh_via_label=32,
+ labels=[VppMplsLabel(44), VppMplsLabel(45)],
+ )
+ ],
+ )
route_34_eos.add_vpp_config()
+ self.logger.info(self.vapi.cli("sh mpls fib 34"))
- tx = self.create_stream_labelled_ip4(self.pg0, [34])
- self.pg0.add_stream(tx)
+ tx = self.create_stream_labelled_ip4(self.pg0, [VppMplsLabel(34, ttl=3)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled(
+ self.pg0,
+ rx,
+ tx,
+ [VppMplsLabel(33), VppMplsLabel(44), VppMplsLabel(45, ttl=2)],
+ )
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
+ self.assertEqual(route_34_eos.get_stats_to()["packets"], 257)
+ self.assertEqual(route_32_neos.get_stats_via()["packets"], 257)
- rx = self.pg0.get_capture()
- self.verify_capture_labelled_ip4(self.pg0, rx, tx, [33, 44, 45])
+ #
+ # A recursive EOS x-connect, which resolves through another x-connect
+ # in uniform mode
+ #
+ route_35_eos = VppMplsRoute(
+ self,
+ 35,
+ 1,
+ [
+ VppRoutePath(
+ "0.0.0.0", 0xFFFFFFFF, nh_via_label=42, labels=[VppMplsLabel(44)]
+ )
+ ],
+ )
+ route_35_eos.add_vpp_config()
+
+ tx = self.create_stream_labelled_ip4(self.pg0, [VppMplsLabel(35, ttl=3)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled(
+ self.pg0, rx, tx, [VppMplsLabel(43, ttl=2), VppMplsLabel(44, ttl=2)]
+ )
#
# A recursive non-EOS x-connect, which resolves through another
# x-connect
#
- route_34_neos = VppMplsRoute(self, 34, 0,
- [VppRoutePath("0.0.0.0",
- 0xffffffff,
- nh_via_label=32,
- labels=[44, 46])])
+ route_34_neos = VppMplsRoute(
+ self,
+ 34,
+ 0,
+ [
+ VppRoutePath(
+ "0.0.0.0",
+ 0xFFFFFFFF,
+ nh_via_label=32,
+ labels=[VppMplsLabel(44), VppMplsLabel(46)],
+ )
+ ],
+ )
route_34_neos.add_vpp_config()
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip4(self.pg0, [34, 99])
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
+ tx = self.create_stream_labelled_ip4(
+ self.pg0, [VppMplsLabel(34, ttl=45), VppMplsLabel(99)]
+ )
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
# it's the 2nd (counting from 0) label in the stack that is swapped
- self.verify_capture_labelled(self.pg0, rx, tx, [33, 44, 46, 99], num=2)
+ self.verify_capture_labelled(
+ self.pg0,
+ rx,
+ tx,
+ [
+ VppMplsLabel(33),
+ VppMplsLabel(44),
+ VppMplsLabel(46, ttl=44),
+ VppMplsLabel(99),
+ ],
+ )
#
# an recursive IP route that resolves through the recursive non-eos
# x-connect
#
- ip_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32,
- [VppRoutePath("0.0.0.0",
- 0xffffffff,
- nh_via_label=34,
- labels=[55])])
+ ip_10_0_0_1 = VppIpRoute(
+ self,
+ "10.0.0.1",
+ 32,
+ [
+ VppRoutePath(
+ "0.0.0.0", 0xFFFFFFFF, nh_via_label=34, labels=[VppMplsLabel(55)]
+ )
+ ],
+ )
ip_10_0_0_1.add_vpp_config()
- self.vapi.cli("clear trace")
tx = self.create_stream_ip4(self.pg0, "10.0.0.1")
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
- self.verify_capture_labelled_ip4(self.pg0, rx, tx, [33, 44, 46, 55])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled_ip4(
+ self.pg0,
+ rx,
+ tx,
+ [VppMplsLabel(33), VppMplsLabel(44), VppMplsLabel(46), VppMplsLabel(55)],
+ )
+ self.assertEqual(ip_10_0_0_1.get_stats_to()["packets"], 257)
ip_10_0_0_1.remove_vpp_config()
route_34_neos.remove_vpp_config()
route_32_eos.remove_vpp_config()
def test_bind(self):
- """ MPLS Local Label Binding test """
+ """MPLS Local Label Binding test"""
#
# Add a non-recursive route with a single out label
#
- route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32,
- [VppRoutePath(self.pg0.remote_ip4,
- self.pg0.sw_if_index,
- labels=[45])])
+ route_10_0_0_1 = VppIpRoute(
+ self,
+ "10.0.0.1",
+ 32,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip4, self.pg0.sw_if_index, labels=[VppMplsLabel(45)]
+ )
+ ],
+ )
route_10_0_0_1.add_vpp_config()
# bind a local label to the route
binding.add_vpp_config()
# non-EOS stream
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip4(self.pg0, [44, 99])
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
- self.verify_capture_labelled(self.pg0, rx, tx, [45, 99])
+ tx = self.create_stream_labelled_ip4(
+ self.pg0, [VppMplsLabel(44), VppMplsLabel(99)]
+ )
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled(
+ self.pg0, rx, tx, [VppMplsLabel(45, ttl=63), VppMplsLabel(99)]
+ )
# EOS stream
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip4(self.pg0, [44])
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
- self.verify_capture_labelled(self.pg0, rx, tx, [45])
+ tx = self.create_stream_labelled_ip4(self.pg0, [VppMplsLabel(44)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled(self.pg0, rx, tx, [VppMplsLabel(45, ttl=63)])
# IP stream
- self.vapi.cli("clear trace")
tx = self.create_stream_ip4(self.pg0, "10.0.0.1")
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
- self.verify_capture_labelled_ip4(self.pg0, rx, tx, [45])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled_ip4(self.pg0, rx, tx, [VppMplsLabel(45)])
#
# cleanup
route_10_0_0_1.remove_vpp_config()
def test_imposition(self):
- """ MPLS label imposition test """
+ """MPLS label imposition test"""
#
# Add a non-recursive route with a single out label
#
- route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32,
- [VppRoutePath(self.pg0.remote_ip4,
- self.pg0.sw_if_index,
- labels=[32])])
+ route_10_0_0_1 = VppIpRoute(
+ self,
+ "10.0.0.1",
+ 32,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip4, self.pg0.sw_if_index, labels=[VppMplsLabel(32)]
+ )
+ ],
+ )
route_10_0_0_1.add_vpp_config()
#
# a stream that matches the route for 10.0.0.1
# PG0 is in the default table
#
- self.vapi.cli("clear trace")
tx = self.create_stream_ip4(self.pg0, "10.0.0.1")
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
- self.verify_capture_labelled_ip4(self.pg0, rx, tx, [32])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled_ip4(self.pg0, rx, tx, [VppMplsLabel(32)])
#
# Add a non-recursive route with a 3 out labels
#
- route_10_0_0_2 = VppIpRoute(self, "10.0.0.2", 32,
- [VppRoutePath(self.pg0.remote_ip4,
- self.pg0.sw_if_index,
- labels=[32, 33, 34])])
+ route_10_0_0_2 = VppIpRoute(
+ self,
+ "10.0.0.2",
+ 32,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(32), VppMplsLabel(33), VppMplsLabel(34)],
+ )
+ ],
+ )
route_10_0_0_2.add_vpp_config()
+ tx = self.create_stream_ip4(self.pg0, "10.0.0.2", ip_ttl=44, ip_dscp=0xFF)
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled_ip4(
+ self.pg0,
+ rx,
+ tx,
+ [VppMplsLabel(32), VppMplsLabel(33), VppMplsLabel(34)],
+ ip_ttl=43,
+ )
+
#
- # a stream that matches the route for 10.0.0.1
- # PG0 is in the default table
+ # Add a non-recursive route with a single out label in uniform mode
#
- self.vapi.cli("clear trace")
- tx = self.create_stream_ip4(self.pg0, "10.0.0.2")
- self.pg0.add_stream(tx)
+ route_10_0_0_3 = VppIpRoute(
+ self,
+ "10.0.0.3",
+ 32,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(32, mode=MplsLspMode.UNIFORM)],
+ )
+ ],
+ )
+ route_10_0_0_3.add_vpp_config()
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
+ tx = self.create_stream_ip4(self.pg0, "10.0.0.3", ip_ttl=54, ip_dscp=0xBE)
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled_ip4(
+ self.pg0, rx, tx, [VppMplsLabel(32, ttl=53, exp=5)]
+ )
- rx = self.pg0.get_capture()
- self.verify_capture_labelled_ip4(self.pg0, rx, tx, [32, 33, 34])
+ #
+ # Add a IPv6 non-recursive route with a single out label in
+ # uniform mode
+ #
+ route_2001_3 = VppIpRoute(
+ self,
+ "2001::3",
+ 128,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip6,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(32, mode=MplsLspMode.UNIFORM)],
+ )
+ ],
+ )
+ route_2001_3.add_vpp_config()
+
+ tx = self.create_stream_ip6(self.pg0, "2001::3", ip_ttl=54, ip_dscp=0xBE)
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled_ip6(
+ self.pg0, rx, tx, [VppMplsLabel(32, ttl=53, exp=5)]
+ )
#
# add a recursive path, with output label, via the 1 label route
#
- route_11_0_0_1 = VppIpRoute(self, "11.0.0.1", 32,
- [VppRoutePath("10.0.0.1",
- 0xffffffff,
- labels=[44])])
+ route_11_0_0_1 = VppIpRoute(
+ self,
+ "11.0.0.1",
+ 32,
+ [VppRoutePath("10.0.0.1", 0xFFFFFFFF, labels=[VppMplsLabel(44)])],
+ )
route_11_0_0_1.add_vpp_config()
#
# a stream that matches the route for 11.0.0.1, should pick up
# the label stack for 11.0.0.1 and 10.0.0.1
#
- self.vapi.cli("clear trace")
tx = self.create_stream_ip4(self.pg0, "11.0.0.1")
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled_ip4(
+ self.pg0, rx, tx, [VppMplsLabel(32), VppMplsLabel(44)]
+ )
- rx = self.pg0.get_capture()
- self.verify_capture_labelled_ip4(self.pg0, rx, tx, [32, 44])
+ self.assertEqual(route_11_0_0_1.get_stats_to()["packets"], 257)
#
# add a recursive path, with 2 labels, via the 3 label route
#
- route_11_0_0_2 = VppIpRoute(self, "11.0.0.2", 32,
- [VppRoutePath("10.0.0.2",
- 0xffffffff,
- labels=[44, 45])])
+ route_11_0_0_2 = VppIpRoute(
+ self,
+ "11.0.0.2",
+ 32,
+ [
+ VppRoutePath(
+ "10.0.0.2", 0xFFFFFFFF, labels=[VppMplsLabel(44), VppMplsLabel(45)]
+ )
+ ],
+ )
route_11_0_0_2.add_vpp_config()
#
# a stream that matches the route for 11.0.0.1, should pick up
# the label stack for 11.0.0.1 and 10.0.0.1
#
- self.vapi.cli("clear trace")
tx = self.create_stream_ip4(self.pg0, "11.0.0.2")
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled_ip4(
+ self.pg0,
+ rx,
+ tx,
+ [
+ VppMplsLabel(32),
+ VppMplsLabel(33),
+ VppMplsLabel(34),
+ VppMplsLabel(44),
+ VppMplsLabel(45),
+ ],
+ )
+
+ self.assertEqual(route_11_0_0_2.get_stats_to()["packets"], 257)
+
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
self.verify_capture_labelled_ip4(
- self.pg0, rx, tx, [32, 33, 34, 44, 45])
+ self.pg0,
+ rx,
+ tx,
+ [
+ VppMplsLabel(32),
+ VppMplsLabel(33),
+ VppMplsLabel(34),
+ VppMplsLabel(44),
+ VppMplsLabel(45),
+ ],
+ )
+
+ self.assertEqual(route_11_0_0_2.get_stats_to()["packets"], 514)
#
# cleanup
route_10_0_0_2.remove_vpp_config()
route_10_0_0_1.remove_vpp_config()
- def test_tunnel(self):
- """ MPLS Tunnel Tests """
+ def test_imposition_fragmentation(self):
+ """MPLS label imposition fragmentation test"""
#
- # Create a tunnel with a single out label
+ # Add a ipv4 non-recursive route with a single out label
+ #
+ route_10_0_0_1 = VppIpRoute(
+ self,
+ "10.0.0.1",
+ 32,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip4, self.pg0.sw_if_index, labels=[VppMplsLabel(32)]
+ )
+ ],
+ )
+ route_10_0_0_1.add_vpp_config()
+ route_1000_1 = VppIpRoute(
+ self,
+ "1000::1",
+ 128,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip6, self.pg0.sw_if_index, labels=[VppMplsLabel(32)]
+ )
+ ],
+ )
+ route_1000_1.add_vpp_config()
+
+ #
+ # a stream that matches the route for 10.0.0.1
+ # PG0 is in the default table
+ #
+ tx = self.create_stream_ip4(self.pg0, "10.0.0.1")
+ for i in range(0, 257):
+ self.extend_packet(tx[i], 10000)
+
+ #
+ # 5 fragments per packet (257*5=1285)
+ #
+ rx = self.send_and_expect(self.pg0, tx, self.pg0, 1285)
+ self.verify_capture_fragmented_labelled_ip4(
+ self.pg0, rx, tx, [VppMplsLabel(32)]
+ )
+
+ # packets with DF bit set generate ICMP
+ for t in tx:
+ t[IP].flags = "DF"
+ rxs = self.send_and_expect_some(self.pg0, tx, self.pg0)
+
+ for rx in rxs:
+ self.assertEqual(icmptypes[rx[ICMP].type], "dest-unreach")
+ self.assertEqual(
+ icmpcodes[rx[ICMP].type][rx[ICMP].code], "fragmentation-needed"
+ )
+ # the link MTU is 9000, the MPLS over head is 4 bytes
+ self.assertEqual(rx[ICMP].nexthopmtu, 9000 - 4)
+
+ self.assertEqual(
+ self.statistics.get_err_counter("/err/mpls-frag/dont_fragment_set"),
+ len(tx),
+ )
+ #
+ # a stream that matches the route for 1000::1/128
+ # PG0 is in the default table
+ #
+ tx = self.create_stream_ip6(self.pg0, "1000::1")
+ for i in range(0, 257):
+ self.extend_packet(tx[i], 10000)
+
+ rxs = self.send_and_expect_some(self.pg0, tx, self.pg0)
+ for rx in rxs:
+ self.assertEqual(rx[ICMPv6PacketTooBig].mtu, 9000 - 4)
+
+ #
+ # cleanup
#
- nh_addr = socket.inet_pton(socket.AF_INET, self.pg0.remote_ip4)
+ route_10_0_0_1.remove_vpp_config()
- reply = self.vapi.mpls_tunnel_add_del(
- 0xffffffff, # don't know the if index yet
- 1, # IPv4 next-hop
- nh_addr,
- self.pg0.sw_if_index,
- 0, # next-hop-table-id
- 1, # next-hop-weight
- 2, # num-out-labels,
- [44, 46])
- self.vapi.sw_interface_set_flags(reply.sw_if_index, admin_up_down=1)
+ def test_tunnel_pipe(self):
+ """MPLS Tunnel Tests - Pipe"""
+
+ #
+ # Create a tunnel with two out labels
+ #
+ mpls_tun = VppMPLSTunnelInterface(
+ self,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(44), VppMplsLabel(46)],
+ )
+ ],
+ )
+ mpls_tun.add_vpp_config()
+ mpls_tun.admin_up()
#
# add an unlabelled route through the new tunnel
#
- route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32,
- [VppRoutePath("0.0.0.0",
- reply.sw_if_index)])
+ route_10_0_0_3 = VppIpRoute(
+ self, "10.0.0.3", 32, [VppRoutePath("0.0.0.0", mpls_tun._sw_if_index)]
+ )
route_10_0_0_3.add_vpp_config()
self.vapi.cli("clear trace")
self.pg_start()
rx = self.pg0.get_capture()
- self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [44, 46])
-
- def test_v4_exp_null(self):
- """ MPLS V4 Explicit NULL test """
+ self.verify_capture_tunneled_ip4(
+ self.pg0, rx, tx, [VppMplsLabel(44), VppMplsLabel(46)]
+ )
#
- # The first test case has an MPLS TTL of 0
- # all packet should be dropped
+ # add a labelled route through the new tunnel
#
- tx = self.create_stream_labelled_ip4(self.pg0, [0], 0)
+ route_10_0_0_4 = VppIpRoute(
+ self,
+ "10.0.0.4",
+ 32,
+ [VppRoutePath("0.0.0.0", mpls_tun._sw_if_index, labels=[33])],
+ )
+ route_10_0_0_4.add_vpp_config()
+
+ self.vapi.cli("clear trace")
+ tx = self.create_stream_ip4(self.pg0, "10.0.0.4")
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- self.pg0.assert_nothing_captured(remark="MPLS TTL=0 packets forwarded")
+ rx = self.pg0.get_capture()
+ self.verify_capture_tunneled_ip4(
+ self.pg0,
+ rx,
+ tx,
+ [VppMplsLabel(44), VppMplsLabel(46), VppMplsLabel(33, ttl=255)],
+ )
#
- # a stream with a non-zero MPLS TTL
- # PG0 is in the default table
+ # change tunnel's MTU to a low value
+ #
+ mpls_tun.set_l3_mtu(1200)
+
+ # send IP into the tunnel to be fragmented
+ tx = self.create_stream_ip4(self.pg0, "10.0.0.3", payload_size=1500)
+ rx = self.send_and_expect(self.pg0, tx, self.pg0, len(tx) * 2)
+
+ fake_tx = []
+ for p in tx:
+ fake_tx.append(p)
+ fake_tx.append(p)
+ self.verify_capture_tunneled_ip4(
+ self.pg0, rx, fake_tx, [VppMplsLabel(44), VppMplsLabel(46)]
+ )
+
+ # send MPLS into the tunnel to be fragmented
+ tx = self.create_stream_ip4(self.pg0, "10.0.0.4", payload_size=1500)
+ rx = self.send_and_expect(self.pg0, tx, self.pg0, len(tx) * 2)
+
+ fake_tx = []
+ for p in tx:
+ fake_tx.append(p)
+ fake_tx.append(p)
+ self.verify_capture_tunneled_ip4(
+ self.pg0,
+ rx,
+ fake_tx,
+ [VppMplsLabel(44), VppMplsLabel(46), VppMplsLabel(33, ttl=255)],
+ )
+
+ def test_tunnel_uniform(self):
+ """MPLS Tunnel Tests - Uniform"""
+
+ #
+ # Create a tunnel with a single out label
+ # The label stack is specified here from outer to inner
#
- tx = self.create_stream_labelled_ip4(self.pg0, [0])
+ mpls_tun = VppMPLSTunnelInterface(
+ self,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[
+ VppMplsLabel(44, ttl=32),
+ VppMplsLabel(46, MplsLspMode.UNIFORM),
+ ],
+ )
+ ],
+ )
+ mpls_tun.add_vpp_config()
+ mpls_tun.admin_up()
+
+ #
+ # add an unlabelled route through the new tunnel
+ #
+ route_10_0_0_3 = VppIpRoute(
+ self, "10.0.0.3", 32, [VppRoutePath("0.0.0.0", mpls_tun._sw_if_index)]
+ )
+ route_10_0_0_3.add_vpp_config()
+
+ self.vapi.cli("clear trace")
+ tx = self.create_stream_ip4(self.pg0, "10.0.0.3", ip_ttl=24)
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg0.get_capture()
- self.verify_capture_ip4(self.pg0, rx, tx)
+ self.verify_capture_tunneled_ip4(
+ self.pg0, rx, tx, [VppMplsLabel(44, ttl=32), VppMplsLabel(46, ttl=23)]
+ )
#
- # a stream with a non-zero MPLS TTL
- # PG1 is in table 1
- # we are ensuring the post-pop lookup occurs in the VRF table
+ # add a labelled route through the new tunnel
#
+ route_10_0_0_4 = VppIpRoute(
+ self,
+ "10.0.0.4",
+ 32,
+ [
+ VppRoutePath(
+ "0.0.0.0", mpls_tun._sw_if_index, labels=[VppMplsLabel(33, ttl=47)]
+ )
+ ],
+ )
+ route_10_0_0_4.add_vpp_config()
+
self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip4(self.pg1, [0])
- self.pg1.add_stream(tx)
+ tx = self.create_stream_ip4(self.pg0, "10.0.0.4")
+ self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- rx = self.pg1.get_capture()
- self.verify_capture_ip4(self.pg0, rx, tx)
+ rx = self.pg0.get_capture()
+ self.verify_capture_tunneled_ip4(
+ self.pg0,
+ rx,
+ tx,
+ [
+ VppMplsLabel(44, ttl=32),
+ VppMplsLabel(46, ttl=47),
+ VppMplsLabel(33, ttl=47),
+ ],
+ )
+
+ def test_mpls_tunnel_many(self):
+ """MPLS Multiple Tunnels"""
+
+ for ii in range(100):
+ mpls_tun = VppMPLSTunnelInterface(
+ self,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[
+ VppMplsLabel(44, ttl=32),
+ VppMplsLabel(46, MplsLspMode.UNIFORM),
+ ],
+ )
+ ],
+ )
+ mpls_tun.add_vpp_config()
+ mpls_tun.admin_up()
+ for ii in range(100):
+ mpls_tun = VppMPLSTunnelInterface(
+ self,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[
+ VppMplsLabel(44, ttl=32),
+ VppMplsLabel(46, MplsLspMode.UNIFORM),
+ ],
+ )
+ ],
+ is_l2=1,
+ )
+ mpls_tun.add_vpp_config()
+ mpls_tun.admin_up()
- def test_v6_exp_null(self):
- """ MPLS V6 Explicit NULL test """
+ def test_v4_exp_null(self):
+ """MPLS V4 Explicit NULL test"""
+
+ #
+ # The first test case has an MPLS TTL of 0
+ # all packet should be dropped
+ #
+ tx = self.create_stream_labelled_ip4(self.pg0, [VppMplsLabel(0, ttl=0)])
+ self.send_and_assert_no_replies(self.pg0, tx, "MPLS TTL=0 packets forwarded")
#
# a stream with a non-zero MPLS TTL
# PG0 is in the default table
#
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip6(self.pg0, 2, 2)
- self.pg0.add_stream(tx)
+ tx = self.create_stream_labelled_ip4(self.pg0, [VppMplsLabel(0)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_ip4(self.pg0, rx, tx)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
+ #
+ # a stream with a non-zero MPLS TTL
+ # PG1 is in table 1
+ # we are ensuring the post-pop lookup occurs in the VRF table
+ #
+ tx = self.create_stream_labelled_ip4(self.pg1, [VppMplsLabel(0)])
+ rx = self.send_and_expect(self.pg1, tx, self.pg1)
+ self.verify_capture_ip4(self.pg1, rx, tx)
- rx = self.pg0.get_capture()
+ def test_v6_exp_null(self):
+ """MPLS V6 Explicit NULL test"""
+
+ #
+ # a stream with a non-zero MPLS TTL
+ # PG0 is in the default table
+ #
+ tx = self.create_stream_labelled_ip6(self.pg0, [VppMplsLabel(2)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
self.verify_capture_ip6(self.pg0, rx, tx)
#
# PG1 is in table 1
# we are ensuring the post-pop lookup occurs in the VRF table
#
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip6(self.pg1, 2, 2)
- self.pg1.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg1.get_capture()
+ tx = self.create_stream_labelled_ip6(self.pg1, [VppMplsLabel(2)])
+ rx = self.send_and_expect(self.pg1, tx, self.pg1)
self.verify_capture_ip6(self.pg0, rx, tx)
def test_deag(self):
- """ MPLS Deagg """
+ """MPLS Deagg"""
#
# A de-agg route - next-hop lookup in default table
#
- route_34_eos = VppMplsRoute(self, 34, 1,
- [VppRoutePath("0.0.0.0",
- 0xffffffff,
- nh_table_id=0)])
+ route_34_eos = VppMplsRoute(
+ self, 34, 1, [VppRoutePath("0.0.0.0", 0xFFFFFFFF, nh_table_id=0)]
+ )
route_34_eos.add_vpp_config()
#
# ping an interface in the default table
# PG0 is in the default table
#
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip4(self.pg0, [34], ping=1,
- ip_itf=self.pg0)
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
+ tx = self.create_stream_labelled_ip4(
+ self.pg0, [VppMplsLabel(34)], ping=1, ip_itf=self.pg0
+ )
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
self.verify_capture_ip4(self.pg0, rx, tx, ping_resp=1)
#
# A de-agg route - next-hop lookup in non-default table
#
- route_35_eos = VppMplsRoute(self, 35, 1,
- [VppRoutePath("0.0.0.0",
- 0xffffffff,
- nh_table_id=1)])
+ route_35_eos = VppMplsRoute(
+ self, 35, 1, [VppRoutePath("0.0.0.0", 0xFFFFFFFF, nh_table_id=1)]
+ )
route_35_eos.add_vpp_config()
+ route_356_eos = VppMplsRoute(
+ self,
+ 356,
+ 1,
+ [VppRoutePath("0::0", 0xFFFFFFFF, nh_table_id=1)],
+ eos_proto=FibPathProto.FIB_PATH_NH_PROTO_IP6,
+ )
+ route_356_eos.add_vpp_config()
#
# ping an interface in the non-default table
# PG0 is in the default table. packet arrive labelled in the
# default table and egress unlabelled in the non-default
#
+ tx = self.create_stream_labelled_ip4(
+ self.pg0, [VppMplsLabel(35)], ping=1, ip_itf=self.pg1
+ )
+ rx = self.send_and_expect(self.pg0, tx, self.pg1)
+ self.verify_capture_ip4(self.pg1, rx, tx, ping_resp=1)
+ tx = self.create_stream_labelled_ip6(
+ self.pg0, [VppMplsLabel(356)], ping=1, ip_itf=self.pg1
+ )
+ rx = self.send_and_expect(self.pg0, tx, self.pg1)
+ self.verify_capture_ip6(self.pg1, rx, tx, ping_resp=1)
+
+ #
+ # Double pop
+ #
+ route_36_neos = VppMplsRoute(self, 36, 0, [VppRoutePath("0.0.0.0", 0xFFFFFFFF)])
+ route_36_neos.add_vpp_config()
+
+ tx = self.create_stream_labelled_ip4(
+ self.pg0, [VppMplsLabel(36), VppMplsLabel(35)], ping=1, ip_itf=self.pg1
+ )
+ rx = self.send_and_expect(self.pg0, tx, self.pg1)
+ self.verify_capture_ip4(self.pg1, rx, tx, ping_resp=1)
+
+ route_36_neos.remove_vpp_config()
+ route_35_eos.remove_vpp_config()
+ route_34_eos.remove_vpp_config()
+
+ def test_interface_rx(self):
+ """MPLS Interface Receive"""
+
+ #
+ # Add a non-recursive route that will forward the traffic
+ # post-interface-rx
+ #
+ route_10_0_0_1 = VppIpRoute(
+ self,
+ "10.0.0.1",
+ 32,
+ table_id=1,
+ paths=[VppRoutePath(self.pg1.remote_ip4, self.pg1.sw_if_index)],
+ )
+ route_10_0_0_1.add_vpp_config()
+
+ #
+ # An interface receive label that maps traffic to RX on interface
+ # pg1
+ # by injecting the packet in on pg0, which is in table 0
+ # doing an interface-rx on pg1 and matching a route in table 1
+ # if the packet egresses, then we must have swapped to pg1
+ # so as to have matched the route in table 1
+ #
+ route_34_eos = VppMplsRoute(
+ self,
+ 34,
+ 1,
+ [
+ VppRoutePath(
+ "0.0.0.0",
+ self.pg1.sw_if_index,
+ type=FibPathType.FIB_PATH_TYPE_INTERFACE_RX,
+ )
+ ],
+ )
+ route_34_eos.add_vpp_config()
+
+ #
+ # ping an interface in the default table
+ # PG0 is in the default table
+ #
+ tx = self.create_stream_labelled_ip4(
+ self.pg0, [VppMplsLabel(34)], dst_ip="10.0.0.1"
+ )
+ rx = self.send_and_expect(self.pg0, tx, self.pg1)
+ self.verify_capture_ip4(self.pg1, rx, tx)
+
+ def test_mcast_mid_point(self):
+ """MPLS Multicast Mid Point"""
+
+ #
+ # Add a non-recursive route that will forward the traffic
+ # post-interface-rx
+ #
+ route_10_0_0_1 = VppIpRoute(
+ self,
+ "10.0.0.1",
+ 32,
+ table_id=1,
+ paths=[VppRoutePath(self.pg1.remote_ip4, self.pg1.sw_if_index)],
+ )
+ route_10_0_0_1.add_vpp_config()
+
+ #
+ # Add a mcast entry that replicate to pg2 and pg3
+ # and replicate to a interface-rx (like a bud node would)
+ #
+ route_3400_eos = VppMplsRoute(
+ self,
+ 3400,
+ 1,
+ [
+ VppRoutePath(
+ self.pg2.remote_ip4,
+ self.pg2.sw_if_index,
+ labels=[VppMplsLabel(3401)],
+ ),
+ VppRoutePath(
+ self.pg3.remote_ip4,
+ self.pg3.sw_if_index,
+ labels=[VppMplsLabel(3402)],
+ ),
+ VppRoutePath(
+ "0.0.0.0",
+ self.pg1.sw_if_index,
+ type=FibPathType.FIB_PATH_TYPE_INTERFACE_RX,
+ ),
+ ],
+ is_multicast=1,
+ )
+ route_3400_eos.add_vpp_config()
+
+ #
+ # ping an interface in the default table
+ # PG0 is in the default table
+ #
self.vapi.cli("clear trace")
tx = self.create_stream_labelled_ip4(
- self.pg0, [35], ping=1, ip_itf=self.pg1)
+ self.pg0, [VppMplsLabel(3400, ttl=64)], n=257, dst_ip="10.0.0.1"
+ )
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- packet_count = self.get_packet_count_for_if_idx(self.pg0.sw_if_index)
- rx = self.pg1.get_capture(packet_count)
- self.verify_capture_ip4(self.pg1, rx, tx, ping_resp=1)
+ rx = self.pg1.get_capture(257)
+ self.verify_capture_ip4(self.pg1, rx, tx)
- route_35_eos.remove_vpp_config()
- route_34_eos.remove_vpp_config()
+ rx = self.pg2.get_capture(257)
+ self.verify_capture_labelled(self.pg2, rx, tx, [VppMplsLabel(3401, ttl=63)])
+ rx = self.pg3.get_capture(257)
+ self.verify_capture_labelled(self.pg3, rx, tx, [VppMplsLabel(3402, ttl=63)])
+
+ def test_mcast_head(self):
+ """MPLS Multicast Head-end"""
+
+ MRouteItfFlags = VppEnum.vl_api_mfib_itf_flags_t
+ MRouteEntryFlags = VppEnum.vl_api_mfib_entry_flags_t
+
+ #
+ # Create a multicast tunnel with two replications
+ #
+ mpls_tun = VppMPLSTunnelInterface(
+ self,
+ [
+ VppRoutePath(
+ self.pg2.remote_ip4, self.pg2.sw_if_index, labels=[VppMplsLabel(42)]
+ ),
+ VppRoutePath(
+ self.pg3.remote_ip4, self.pg3.sw_if_index, labels=[VppMplsLabel(43)]
+ ),
+ ],
+ is_multicast=1,
+ )
+ mpls_tun.add_vpp_config()
+ mpls_tun.admin_up()
+
+ #
+ # add an unlabelled route through the new tunnel
+ #
+ route_10_0_0_3 = VppIpRoute(
+ self, "10.0.0.3", 32, [VppRoutePath("0.0.0.0", mpls_tun._sw_if_index)]
+ )
+ route_10_0_0_3.add_vpp_config()
+
+ self.vapi.cli("clear trace")
+ tx = self.create_stream_ip4(self.pg0, "10.0.0.3")
+ self.pg0.add_stream(tx)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg2.get_capture(257)
+ self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [VppMplsLabel(42)])
+ rx = self.pg3.get_capture(257)
+ self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [VppMplsLabel(43)])
+
+ #
+ # An an IP multicast route via the tunnel
+ # A (*,G).
+ # one accepting interface, pg0, 1 forwarding interface via the tunnel
+ #
+ route_232_1_1_1 = VppIpMRoute(
+ self,
+ "0.0.0.0",
+ "232.1.1.1",
+ 32,
+ MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
+ [
+ VppMRoutePath(
+ self.pg0.sw_if_index, MRouteItfFlags.MFIB_API_ITF_FLAG_ACCEPT
+ ),
+ VppMRoutePath(
+ mpls_tun._sw_if_index, MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD
+ ),
+ ],
+ )
+ route_232_1_1_1.add_vpp_config()
+ self.logger.info(self.vapi.cli("sh ip mfib index 0"))
+
+ self.vapi.cli("clear trace")
+ tx = self.create_stream_ip4(self.pg0, "232.1.1.1")
+ self.pg0.add_stream(tx)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg2.get_capture(257)
+ self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [VppMplsLabel(42)])
+ rx = self.pg3.get_capture(257)
+ self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [VppMplsLabel(43)])
+
+ def test_mcast_ip4_tail(self):
+ """MPLS IPv4 Multicast Tail"""
+
+ MRouteItfFlags = VppEnum.vl_api_mfib_itf_flags_t
+ MRouteEntryFlags = VppEnum.vl_api_mfib_entry_flags_t
+
+ #
+ # Add a multicast route that will forward the traffic
+ # post-disposition
+ #
+ route_232_1_1_1 = VppIpMRoute(
+ self,
+ "0.0.0.0",
+ "232.1.1.1",
+ 32,
+ MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
+ table_id=1,
+ paths=[
+ VppMRoutePath(
+ self.pg1.sw_if_index, MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD
+ )
+ ],
+ )
+ route_232_1_1_1.add_vpp_config()
+
+ #
+ # An interface receive label that maps traffic to RX on interface
+ # pg1
+ # by injecting the packet in on pg0, which is in table 0
+ # doing an rpf-id and matching a route in table 1
+ # if the packet egresses, then we must have matched the route in
+ # table 1
+ #
+ route_34_eos = VppMplsRoute(
+ self,
+ 34,
+ 1,
+ [VppRoutePath("0.0.0.0", 0xFFFFFFFF, nh_table_id=1, rpf_id=55)],
+ is_multicast=1,
+ eos_proto=FibPathProto.FIB_PATH_NH_PROTO_IP4,
+ )
+
+ route_34_eos.add_vpp_config()
+
+ #
+ # Drop due to interface lookup miss
+ #
+ self.vapi.cli("clear trace")
+ tx = self.create_stream_labelled_ip4(
+ self.pg0, [VppMplsLabel(34)], dst_ip="232.1.1.1", n=1
+ )
+ self.send_and_assert_no_replies(self.pg0, tx, "RPF-ID drop none")
+
+ #
+ # set the RPF-ID of the entry to match the input packet's
+ #
+ route_232_1_1_1.update_rpf_id(55)
+ self.logger.info(self.vapi.cli("sh ip mfib index 1 232.1.1.1"))
+
+ tx = self.create_stream_labelled_ip4(
+ self.pg0, [VppMplsLabel(34)], dst_ip="232.1.1.1"
+ )
+ rx = self.send_and_expect(self.pg0, tx, self.pg1)
+ self.verify_capture_ip4(self.pg1, rx, tx)
+
+ #
+ # disposed packets have an invalid IPv4 checksum
+ #
+ tx = self.create_stream_labelled_ip4(
+ self.pg0, [VppMplsLabel(34)], dst_ip="232.1.1.1", n=65, chksum=1
+ )
+ self.send_and_assert_no_replies(self.pg0, tx, "Invalid Checksum")
+
+ #
+ # set the RPF-ID of the entry to not match the input packet's
+ #
+ route_232_1_1_1.update_rpf_id(56)
+ tx = self.create_stream_labelled_ip4(
+ self.pg0, [VppMplsLabel(34)], dst_ip="232.1.1.1"
+ )
+ self.send_and_assert_no_replies(self.pg0, tx, "RPF-ID drop 56")
+
+ def test_mcast_ip6_tail(self):
+ """MPLS IPv6 Multicast Tail"""
+
+ MRouteItfFlags = VppEnum.vl_api_mfib_itf_flags_t
+ MRouteEntryFlags = VppEnum.vl_api_mfib_entry_flags_t
+
+ #
+ # Add a multicast route that will forward the traffic
+ # post-disposition
+ #
+ route_ff = VppIpMRoute(
+ self,
+ "::",
+ "ff01::1",
+ 32,
+ MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
+ table_id=1,
+ paths=[
+ VppMRoutePath(
+ self.pg1.sw_if_index,
+ MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_IP6,
+ )
+ ],
+ )
+ route_ff.add_vpp_config()
+
+ #
+ # An interface receive label that maps traffic to RX on interface
+ # pg1
+ # by injecting the packet in on pg0, which is in table 0
+ # doing an rpf-id and matching a route in table 1
+ # if the packet egresses, then we must have matched the route in
+ # table 1
+ #
+ route_34_eos = VppMplsRoute(
+ self,
+ 34,
+ 1,
+ [VppRoutePath("::", 0xFFFFFFFF, nh_table_id=1, rpf_id=55)],
+ is_multicast=1,
+ eos_proto=FibPathProto.FIB_PATH_NH_PROTO_IP6,
+ )
+
+ route_34_eos.add_vpp_config()
+
+ #
+ # Drop due to interface lookup miss
+ #
+ tx = self.create_stream_labelled_ip6(
+ self.pg0, [VppMplsLabel(34)], dst_ip="ff01::1"
+ )
+ self.send_and_assert_no_replies(self.pg0, tx, "RPF Miss")
+
+ #
+ # set the RPF-ID of the entry to match the input packet's
+ #
+ route_ff.update_rpf_id(55)
+
+ tx = self.create_stream_labelled_ip6(
+ self.pg0, [VppMplsLabel(34)], dst_ip="ff01::1"
+ )
+ rx = self.send_and_expect(self.pg0, tx, self.pg1)
+ self.verify_capture_ip6(self.pg1, rx, tx)
+
+ #
+ # disposed packets have hop-limit = 1
+ #
+ tx = self.create_stream_labelled_ip6(
+ self.pg0, [VppMplsLabel(34)], dst_ip="ff01::1", hlim=1
+ )
+ rx = self.send_and_expect_some(self.pg0, tx, self.pg0)
+ self.verify_capture_ip6_icmp(self.pg0, rx, tx)
+
+ #
+ # set the RPF-ID of the entry to not match the input packet's
+ #
+ route_ff.update_rpf_id(56)
+ tx = self.create_stream_labelled_ip6(
+ self.pg0, [VppMplsLabel(34)], dst_ip="ff01::1"
+ )
+ self.send_and_assert_no_replies(self.pg0, tx, "RPF-ID drop 56")
+
+ def test_6pe(self):
+ """MPLS 6PE"""
+
+ #
+ # Add a non-recursive route with a single out label
+ #
+ route_10_0_0_1 = VppIpRoute(
+ self,
+ "10.0.0.1",
+ 32,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip4, self.pg0.sw_if_index, labels=[VppMplsLabel(45)]
+ )
+ ],
+ )
+ route_10_0_0_1.add_vpp_config()
+
+ # bind a local label to the route
+ binding = VppMplsIpBind(self, 44, "10.0.0.1", 32)
+ binding.add_vpp_config()
-if __name__ == '__main__':
+ #
+ # a labelled v6 route that resolves through the v4
+ #
+ route_2001_3 = VppIpRoute(
+ self,
+ "2001::3",
+ 128,
+ [VppRoutePath("10.0.0.1", INVALID_INDEX, labels=[VppMplsLabel(32)])],
+ )
+ route_2001_3.add_vpp_config()
+
+ tx = self.create_stream_ip6(self.pg0, "2001::3")
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+
+ self.verify_capture_labelled_ip6(
+ self.pg0, rx, tx, [VppMplsLabel(45), VppMplsLabel(32)]
+ )
+
+ #
+ # and a v4 recursive via the v6
+ #
+ route_20_3 = VppIpRoute(
+ self,
+ "20.0.0.3",
+ 32,
+ [VppRoutePath("2001::3", INVALID_INDEX, labels=[VppMplsLabel(99)])],
+ )
+ route_20_3.add_vpp_config()
+
+ tx = self.create_stream_ip4(self.pg0, "20.0.0.3")
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+
+ self.verify_capture_labelled_ip4(
+ self.pg0, rx, tx, [VppMplsLabel(45), VppMplsLabel(32), VppMplsLabel(99)]
+ )
+
+ def test_attached(self):
+ """Attach Routes with Local Label"""
+
+ #
+ # test that if a local label is associated with an attached/connected
+ # prefix, that we can reach hosts in the prefix.
+ #
+ binding = VppMplsIpBind(
+ self, 44, self.pg0._local_ip4_subnet, self.pg0.local_ip4_prefix_len
+ )
+ binding.add_vpp_config()
+
+ tx = (
+ Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac)
+ / MPLS(label=44, ttl=64)
+ / IP(src=self.pg0.remote_ip4, dst=self.pg0.remote_ip4)
+ / UDP(sport=1234, dport=1234)
+ / Raw(b"\xa5" * 100)
+ )
+ rxs = self.send_and_expect(self.pg0, [tx], self.pg0)
+ for rx in rxs:
+ # if there's an ARP then the label is linked to the glean
+ # which is wrong.
+ self.assertFalse(rx.haslayer(ARP))
+ # it should be unicasted to the host
+ self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
+ self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
+
+
+class TestMPLSDisabled(VppTestCase):
+ """MPLS disabled"""
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestMPLSDisabled, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestMPLSDisabled, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestMPLSDisabled, self).setUp()
+
+ # create 2 pg interfaces
+ self.create_pg_interfaces(range(2))
+
+ self.tbl = VppMplsTable(self, 0)
+ self.tbl.add_vpp_config()
+
+ # PG0 is MPLS enabled
+ self.pg0.admin_up()
+ self.pg0.config_ip4()
+ self.pg0.resolve_arp()
+ self.pg0.enable_mpls()
+
+ # PG 1 is not MPLS enabled
+ self.pg1.admin_up()
+
+ def tearDown(self):
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.admin_down()
+
+ self.pg0.disable_mpls()
+ super(TestMPLSDisabled, self).tearDown()
+
+ def test_mpls_disabled(self):
+ """MPLS Disabled"""
+
+ self.logger.info(self.vapi.cli("show mpls interface"))
+ self.logger.info(self.vapi.cli("show mpls interface pg1"))
+ self.logger.info(self.vapi.cli("show mpls interface pg0"))
+
+ tx = (
+ Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac)
+ / MPLS(label=32, ttl=64)
+ / IPv6(src="2001::1", dst=self.pg0.remote_ip6)
+ / UDP(sport=1234, dport=1234)
+ / Raw(b"\xa5" * 100)
+ )
+
+ #
+ # A simple MPLS xconnect - eos label in label out
+ #
+ route_32_eos = VppMplsRoute(
+ self,
+ 32,
+ 1,
+ [VppRoutePath(self.pg0.remote_ip4, self.pg0.sw_if_index, labels=[33])],
+ )
+ route_32_eos.add_vpp_config()
+
+ #
+ # PG1 does not forward IP traffic
+ #
+ self.send_and_assert_no_replies(self.pg1, tx, "MPLS disabled")
+
+ #
+ # MPLS enable PG1
+ #
+ self.pg1.enable_mpls()
+
+ self.logger.info(self.vapi.cli("show mpls interface"))
+ self.logger.info(self.vapi.cli("show mpls interface pg1"))
+
+ #
+ # Now we get packets through
+ #
+ self.pg1.add_stream(tx)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg0.get_capture(1)
+
+ #
+ # Disable PG1
+ #
+ self.pg1.disable_mpls()
+
+ #
+ # PG1 does not forward IP traffic
+ #
+ self.send_and_assert_no_replies(self.pg1, tx, "IPv6 disabled")
+ self.send_and_assert_no_replies(self.pg1, tx, "IPv6 disabled")
+
+
+class TestMPLSPIC(VppTestCase):
+ """MPLS Prefix-Independent Convergence (PIC) edge convergence"""
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestMPLSPIC, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestMPLSPIC, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestMPLSPIC, self).setUp()
+
+ # create 2 pg interfaces
+ self.create_pg_interfaces(range(4))
+
+ mpls_tbl = VppMplsTable(self, 0)
+ mpls_tbl.add_vpp_config()
+ tbl4 = VppIpTable(self, 1)
+ tbl4.add_vpp_config()
+ tbl6 = VppIpTable(self, 1, is_ip6=1)
+ tbl6.add_vpp_config()
+
+ # core links
+ self.pg0.admin_up()
+ self.pg0.config_ip4()
+ self.pg0.resolve_arp()
+ self.pg0.enable_mpls()
+
+ self.pg1.admin_up()
+ self.pg1.config_ip4()
+ self.pg1.resolve_arp()
+ self.pg1.enable_mpls()
+
+ # VRF (customer facing) link
+ self.pg2.admin_up()
+ self.pg2.set_table_ip4(1)
+ self.pg2.config_ip4()
+ self.pg2.resolve_arp()
+ self.pg2.set_table_ip6(1)
+ self.pg2.config_ip6()
+ self.pg2.resolve_ndp()
+
+ self.pg3.admin_up()
+ self.pg3.set_table_ip4(1)
+ self.pg3.config_ip4()
+ self.pg3.resolve_arp()
+ self.pg3.set_table_ip6(1)
+ self.pg3.config_ip6()
+ self.pg3.resolve_ndp()
+
+ def tearDown(self):
+ self.pg0.disable_mpls()
+ self.pg1.disable_mpls()
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.unconfig_ip6()
+ i.set_table_ip4(0)
+ i.set_table_ip6(0)
+ i.admin_down()
+ super(TestMPLSPIC, self).tearDown()
+
+ def test_mpls_ibgp_pic(self):
+ """MPLS iBGP Prefix-Independent Convergence (PIC) edge convergence
+
+ 1) setup many iBGP VPN routes via a pair of iBGP peers.
+ 2) Check EMCP forwarding to these peers
+ 3) withdraw the IGP route to one of these peers.
+ 4) check forwarding continues to the remaining peer
+ """
+
+ #
+ # IGP+LDP core routes
+ #
+ core_10_0_0_45 = VppIpRoute(
+ self,
+ "10.0.0.45",
+ 32,
+ [VppRoutePath(self.pg0.remote_ip4, self.pg0.sw_if_index, labels=[45])],
+ )
+ core_10_0_0_45.add_vpp_config()
+
+ core_10_0_0_46 = VppIpRoute(
+ self,
+ "10.0.0.46",
+ 32,
+ [VppRoutePath(self.pg1.remote_ip4, self.pg1.sw_if_index, labels=[46])],
+ )
+ core_10_0_0_46.add_vpp_config()
+
+ #
+ # Lot's of VPN routes. We need more the 64 so VPP will build
+ # the fast convergence indirection
+ #
+ vpn_routes = []
+ pkts = []
+ for ii in range(NUM_PKTS):
+ dst = "192.168.1.%d" % ii
+ vpn_routes.append(
+ VppIpRoute(
+ self,
+ dst,
+ 32,
+ [
+ VppRoutePath(
+ "10.0.0.45",
+ 0xFFFFFFFF,
+ labels=[145],
+ flags=FibPathFlags.FIB_PATH_FLAG_RESOLVE_VIA_HOST,
+ ),
+ VppRoutePath(
+ "10.0.0.46",
+ 0xFFFFFFFF,
+ labels=[146],
+ flags=FibPathFlags.FIB_PATH_FLAG_RESOLVE_VIA_HOST,
+ ),
+ ],
+ table_id=1,
+ )
+ )
+ vpn_routes[ii].add_vpp_config()
+
+ pkts.append(
+ Ether(dst=self.pg2.local_mac, src=self.pg2.remote_mac)
+ / IP(src=self.pg2.remote_ip4, dst=dst)
+ / UDP(sport=1234, dport=1234)
+ / Raw(b"\xa5" * 100)
+ )
+
+ #
+ # Send the packet stream (one pkt to each VPN route)
+ # - expect a 50-50 split of the traffic
+ #
+ self.pg2.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg0._get_capture(NUM_PKTS)
+ rx1 = self.pg1._get_capture(NUM_PKTS)
+
+ # not testing the LB hashing algorithm so we're not concerned
+ # with the split ratio, just as long as neither is 0
+ self.assertNotEqual(0, len(rx0))
+ self.assertNotEqual(0, len(rx1))
+ self.assertEqual(
+ len(pkts),
+ len(rx0) + len(rx1),
+ "Expected all (%s) packets across both ECMP paths. "
+ "rx0: %s rx1: %s." % (len(pkts), len(rx0), len(rx1)),
+ )
+
+ #
+ # use a test CLI command to stop the FIB walk process, this
+ # will prevent the FIB converging the VPN routes and thus allow
+ # us to probe the interim (post-fail, pre-converge) state
+ #
+ self.vapi.ppcli("test fib-walk-process disable")
+
+ #
+ # Withdraw one of the IGP routes
+ #
+ core_10_0_0_46.remove_vpp_config()
+
+ #
+ # now all packets should be forwarded through the remaining peer
+ #
+ self.vapi.ppcli("clear trace")
+ self.pg2.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg0.get_capture(NUM_PKTS)
+ self.assertEqual(
+ len(pkts),
+ len(rx0),
+ "Expected all (%s) packets across single path. "
+ "rx0: %s." % (len(pkts), len(rx0)),
+ )
+
+ #
+ # enable the FIB walk process to converge the FIB
+ #
+ self.vapi.ppcli("test fib-walk-process enable")
+
+ #
+ # packets should still be forwarded through the remaining peer
+ #
+ self.pg2.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg0.get_capture(NUM_PKTS)
+ self.assertEqual(
+ len(pkts),
+ len(rx0),
+ "Expected all (%s) packets across single path. "
+ "rx0: %s." % (len(pkts), len(rx0)),
+ )
+
+ #
+ # Add the IGP route back and we return to load-balancing
+ #
+ core_10_0_0_46.add_vpp_config()
+
+ self.pg2.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg0._get_capture(NUM_PKTS)
+ rx1 = self.pg1._get_capture(NUM_PKTS)
+ self.assertNotEqual(0, len(rx0))
+ self.assertNotEqual(0, len(rx1))
+ self.assertEqual(
+ len(pkts),
+ len(rx0) + len(rx1),
+ "Expected all (%s) packets across both ECMP paths. "
+ "rx0: %s rx1: %s." % (len(pkts), len(rx0), len(rx1)),
+ )
+
+ def test_mpls_ebgp_pic(self):
+ """MPLS eBGP Prefix-Independent Convergence (PIC) edge convergence
+
+ 1) setup many eBGP VPN routes via a pair of eBGP peers.
+ 2) Check EMCP forwarding to these peers
+ 3) withdraw one eBGP path - expect LB across remaining eBGP
+ """
+
+ #
+ # Lot's of VPN routes. We need more the 64 so VPP will build
+ # the fast convergence indirection
+ #
+ vpn_routes = []
+ vpn_bindings = []
+ pkts = []
+ for ii in range(NUM_PKTS):
+ dst = "192.168.1.%d" % ii
+ local_label = 1600 + ii
+ vpn_routes.append(
+ VppIpRoute(
+ self,
+ dst,
+ 32,
+ [
+ VppRoutePath(
+ self.pg2.remote_ip4,
+ 0xFFFFFFFF,
+ nh_table_id=1,
+ flags=FibPathFlags.FIB_PATH_FLAG_RESOLVE_VIA_ATTACHED,
+ ),
+ VppRoutePath(
+ self.pg3.remote_ip4,
+ 0xFFFFFFFF,
+ nh_table_id=1,
+ flags=FibPathFlags.FIB_PATH_FLAG_RESOLVE_VIA_ATTACHED,
+ ),
+ ],
+ table_id=1,
+ )
+ )
+ vpn_routes[ii].add_vpp_config()
+
+ vpn_bindings.append(
+ VppMplsIpBind(self, local_label, dst, 32, ip_table_id=1)
+ )
+ vpn_bindings[ii].add_vpp_config()
+
+ pkts.append(
+ Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
+ / MPLS(label=local_label, ttl=64)
+ / IP(src=self.pg0.remote_ip4, dst=dst)
+ / UDP(sport=1234, dport=1234)
+ / Raw(b"\xa5" * 100)
+ )
+
+ #
+ # Send the packet stream (one pkt to each VPN route)
+ # - expect a 50-50 split of the traffic
+ #
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg2._get_capture(NUM_PKTS)
+ rx1 = self.pg3._get_capture(NUM_PKTS)
+
+ # not testing the LB hashing algorithm so we're not concerned
+ # with the split ratio, just as long as neither is 0
+ self.assertNotEqual(0, len(rx0))
+ self.assertNotEqual(0, len(rx1))
+ self.assertEqual(
+ len(pkts),
+ len(rx0) + len(rx1),
+ "Expected all (%s) packets across both ECMP paths. "
+ "rx0: %s rx1: %s." % (len(pkts), len(rx0), len(rx1)),
+ )
+
+ #
+ # use a test CLI command to stop the FIB walk process, this
+ # will prevent the FIB converging the VPN routes and thus allow
+ # us to probe the interim (post-fail, pre-converge) state
+ #
+ self.vapi.ppcli("test fib-walk-process disable")
+
+ #
+ # withdraw the connected prefix on the interface.
+ #
+ self.pg2.unconfig_ip4()
+
+ #
+ # now all packets should be forwarded through the remaining peer
+ #
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg3.get_capture(NUM_PKTS)
+ self.assertEqual(
+ len(pkts),
+ len(rx0),
+ "Expected all (%s) packets across single path. "
+ "rx0: %s." % (len(pkts), len(rx0)),
+ )
+
+ #
+ # enable the FIB walk process to converge the FIB
+ #
+ self.vapi.ppcli("test fib-walk-process enable")
+
+ #
+ # packets should still be forwarded through the remaining peer
+ #
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg3.get_capture(NUM_PKTS)
+ self.assertEqual(
+ len(pkts),
+ len(rx0),
+ "Expected all (%s) packets across single path. "
+ "rx0: %s." % (len(pkts), len(rx0)),
+ )
+
+ #
+ # put the connected routes back
+ #
+ self.pg2.config_ip4()
+ self.pg2.resolve_arp()
+
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg2._get_capture(NUM_PKTS)
+ rx1 = self.pg3._get_capture(NUM_PKTS)
+ self.assertNotEqual(0, len(rx0))
+ self.assertNotEqual(0, len(rx1))
+ self.assertEqual(
+ len(pkts),
+ len(rx0) + len(rx1),
+ "Expected all (%s) packets across both ECMP paths. "
+ "rx0: %s rx1: %s." % (len(pkts), len(rx0), len(rx1)),
+ )
+
+ def test_mpls_v6_ebgp_pic(self):
+ """MPLSv6 eBGP Prefix-Independent Convergence (PIC) edge convergence
+
+ 1) setup many eBGP VPNv6 routes via a pair of eBGP peers
+ 2) Check EMCP forwarding to these peers
+ 3) withdraw one eBGP path - expect LB across remaining eBGP
+ """
+
+ #
+ # Lot's of VPN routes. We need more the 64 so VPP will build
+ # the fast convergence indirection
+ #
+ vpn_routes = []
+ vpn_bindings = []
+ pkts = []
+ for ii in range(NUM_PKTS):
+ dst = "3000::%d" % ii
+ local_label = 1600 + ii
+ vpn_routes.append(
+ VppIpRoute(
+ self,
+ dst,
+ 128,
+ [
+ VppRoutePath(
+ self.pg2.remote_ip6,
+ 0xFFFFFFFF,
+ nh_table_id=1,
+ flags=FibPathFlags.FIB_PATH_FLAG_RESOLVE_VIA_ATTACHED,
+ ),
+ VppRoutePath(
+ self.pg3.remote_ip6,
+ 0xFFFFFFFF,
+ nh_table_id=1,
+ flags=FibPathFlags.FIB_PATH_FLAG_RESOLVE_VIA_ATTACHED,
+ ),
+ ],
+ table_id=1,
+ )
+ )
+ vpn_routes[ii].add_vpp_config()
+
+ vpn_bindings.append(
+ VppMplsIpBind(self, local_label, dst, 128, ip_table_id=1)
+ )
+ vpn_bindings[ii].add_vpp_config()
+
+ pkts.append(
+ Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
+ / MPLS(label=local_label, ttl=64)
+ / IPv6(src=self.pg0.remote_ip6, dst=dst)
+ / UDP(sport=1234, dport=1234)
+ / Raw(b"\xa5" * 100)
+ )
+ self.logger.info(self.vapi.cli("sh ip6 fib %s" % dst))
+
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg2._get_capture(NUM_PKTS)
+ rx1 = self.pg3._get_capture(NUM_PKTS)
+ self.assertNotEqual(0, len(rx0))
+ self.assertNotEqual(0, len(rx1))
+ self.assertEqual(
+ len(pkts),
+ len(rx0) + len(rx1),
+ "Expected all (%s) packets across both ECMP paths. "
+ "rx0: %s rx1: %s." % (len(pkts), len(rx0), len(rx1)),
+ )
+
+ #
+ # use a test CLI command to stop the FIB walk process, this
+ # will prevent the FIB converging the VPN routes and thus allow
+ # us to probe the interim (post-fail, pre-converge) state
+ #
+ self.vapi.ppcli("test fib-walk-process disable")
+
+ #
+ # withdraw the connected prefix on the interface.
+ # and shutdown the interface so the ND cache is flushed.
+ #
+ self.pg2.unconfig_ip6()
+ self.pg2.admin_down()
+
+ #
+ # now all packets should be forwarded through the remaining peer
+ #
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg3.get_capture(NUM_PKTS)
+ self.assertEqual(
+ len(pkts),
+ len(rx0),
+ "Expected all (%s) packets across single path. "
+ "rx0: %s." % (len(pkts), len(rx0)),
+ )
+
+ #
+ # enable the FIB walk process to converge the FIB
+ #
+ self.vapi.ppcli("test fib-walk-process enable")
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg3.get_capture(NUM_PKTS)
+ self.assertEqual(
+ len(pkts),
+ len(rx0),
+ "Expected all (%s) packets across single path. "
+ "rx0: %s." % (len(pkts), len(rx0)),
+ )
+
+ #
+ # put the connected routes back
+ #
+ self.logger.info(self.vapi.cli("sh log"))
+ self.pg2.admin_up()
+ self.pg2.config_ip6()
+ self.pg2.resolve_ndp()
+
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg2._get_capture(NUM_PKTS)
+ rx1 = self.pg3._get_capture(NUM_PKTS)
+ self.assertNotEqual(0, len(rx0))
+ self.assertNotEqual(0, len(rx1))
+ self.assertEqual(
+ len(pkts),
+ len(rx0) + len(rx1),
+ "Expected all (%s) packets across both ECMP paths. "
+ "rx0: %s rx1: %s." % (len(pkts), len(rx0), len(rx1)),
+ )
+
+
+class TestMPLSL2(VppTestCase):
+ """MPLS-L2"""
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestMPLSL2, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestMPLSL2, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestMPLSL2, self).setUp()
+
+ # create 2 pg interfaces
+ self.create_pg_interfaces(range(2))
+
+ # create the default MPLS table
+ self.tables = []
+ tbl = VppMplsTable(self, 0)
+ tbl.add_vpp_config()
+ self.tables.append(tbl)
+
+ # use pg0 as the core facing interface, don't resolve ARP
+ self.pg0.admin_up()
+ self.pg0.config_ip4()
+ self.pg0.enable_mpls()
+
+ # use the other 2 for customer facing L2 links
+ for i in self.pg_interfaces[1:]:
+ i.admin_up()
+
+ def tearDown(self):
+ for i in self.pg_interfaces[1:]:
+ i.admin_down()
+
+ self.pg0.disable_mpls()
+ self.pg0.unconfig_ip4()
+ self.pg0.admin_down()
+ super(TestMPLSL2, self).tearDown()
+
+ def verify_capture_tunneled_ethernet(self, capture, sent, mpls_labels):
+ capture = verify_filter(capture, sent)
+
+ self.assertEqual(len(capture), len(sent))
+
+ for i in range(len(capture)):
+ tx = sent[i]
+ rx = capture[i]
+
+ # the MPLS TTL is 255 since it enters a new tunnel
+ verify_mpls_stack(self, rx, mpls_labels)
+
+ tx_eth = tx[Ether]
+ rx_eth = Ether(scapy.compat.raw(rx[MPLS].payload))
+
+ self.assertEqual(rx_eth.src, tx_eth.src)
+ self.assertEqual(rx_eth.dst, tx_eth.dst)
+
+ def verify_arp_req(self, rx, smac, sip, dip):
+ ether = rx[Ether]
+ self.assertEqual(ether.dst, "ff:ff:ff:ff:ff:ff")
+ self.assertEqual(ether.src, smac)
+
+ arp = rx[ARP]
+ self.assertEqual(arp.hwtype, 1)
+ self.assertEqual(arp.ptype, 0x800)
+ self.assertEqual(arp.hwlen, 6)
+ self.assertEqual(arp.plen, 4)
+ self.assertEqual(arp.op, ARP.who_has)
+ self.assertEqual(arp.hwsrc, smac)
+ self.assertEqual(arp.hwdst, "00:00:00:00:00:00")
+ self.assertEqual(arp.psrc, sip)
+ self.assertEqual(arp.pdst, dip)
+
+ def test_vpws(self):
+ """Virtual Private Wire Service"""
+
+ #
+ # Create an MPLS tunnel that pushes 1 label
+ # For Ethernet over MPLS the uniform mode is irrelevant since ttl/cos
+ # information is not in the packet, but we test it works anyway
+ #
+ mpls_tun_1 = VppMPLSTunnelInterface(
+ self,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(42, MplsLspMode.UNIFORM)],
+ )
+ ],
+ is_l2=1,
+ )
+ mpls_tun_1.add_vpp_config()
+ mpls_tun_1.admin_up()
+
+ #
+ # Create a label entry to for 55 that does L2 input to the tunnel
+ #
+ route_55_eos = VppMplsRoute(
+ self,
+ 55,
+ 1,
+ [
+ VppRoutePath(
+ "0.0.0.0",
+ mpls_tun_1.sw_if_index,
+ type=FibPathType.FIB_PATH_TYPE_INTERFACE_RX,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_ETHERNET,
+ )
+ ],
+ eos_proto=FibPathProto.FIB_PATH_NH_PROTO_ETHERNET,
+ )
+ route_55_eos.add_vpp_config()
+
+ #
+ # Cross-connect the tunnel with one of the customers L2 interfaces
+ #
+ self.vapi.sw_interface_set_l2_xconnect(
+ self.pg1.sw_if_index, mpls_tun_1.sw_if_index, enable=1
+ )
+ self.vapi.sw_interface_set_l2_xconnect(
+ mpls_tun_1.sw_if_index, self.pg1.sw_if_index, enable=1
+ )
+
+ #
+ # inject a packet from the core
+ #
+ pcore = (
+ Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
+ / MPLS(label=55, ttl=64)
+ / Ether(dst="00:00:de:ad:ba:be", src="00:00:de:ad:be:ef")
+ / IP(src="10.10.10.10", dst="11.11.11.11")
+ / UDP(sport=1234, dport=1234)
+ / Raw(b"\xa5" * 100)
+ )
+
+ tx0 = pcore * NUM_PKTS
+ rx0 = self.send_and_expect(self.pg0, tx0, self.pg1)
+ payload = pcore[MPLS].payload
+
+ self.assertEqual(rx0[0][Ether].dst, payload[Ether].dst)
+ self.assertEqual(rx0[0][Ether].src, payload[Ether].src)
+
+ #
+ # Inject a packet from the customer/L2 side
+ # there's no resolved ARP entry so the first packet we see should be
+ # an ARP request
+ #
+ tx1 = pcore[MPLS].payload
+ rx1 = self.send_and_expect(self.pg1, [tx1], self.pg0)
+
+ self.verify_arp_req(
+ rx1[0], self.pg0.local_mac, self.pg0.local_ip4, self.pg0.remote_ip4
+ )
+
+ #
+ # resolve the ARP entries and send again
+ #
+ self.pg0.resolve_arp()
+ tx1 = pcore[MPLS].payload * NUM_PKTS
+ rx1 = self.send_and_expect(self.pg1, tx1, self.pg0)
+
+ self.verify_capture_tunneled_ethernet(rx1, tx1, [VppMplsLabel(42)])
+
+ def test_vpls(self):
+ """Virtual Private LAN Service"""
+
+ # we skipped this in the setup
+ self.pg0.resolve_arp()
+
+ #
+ # Create a L2 MPLS tunnels
+ #
+ mpls_tun1 = VppMPLSTunnelInterface(
+ self,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip4, self.pg0.sw_if_index, labels=[VppMplsLabel(42)]
+ )
+ ],
+ is_l2=1,
+ )
+ mpls_tun1.add_vpp_config()
+ mpls_tun1.admin_up()
+
+ mpls_tun2 = VppMPLSTunnelInterface(
+ self,
+ [
+ VppRoutePath(
+ self.pg0.remote_ip4, self.pg0.sw_if_index, labels=[VppMplsLabel(43)]
+ )
+ ],
+ is_l2=1,
+ )
+ mpls_tun2.add_vpp_config()
+ mpls_tun2.admin_up()
+
+ #
+ # Create a label entries, 55 and 56, that do L2 input to the tunnel
+ # the latter includes a Psuedo Wire Control Word
+ #
+ route_55_eos = VppMplsRoute(
+ self,
+ 55,
+ 1,
+ [
+ VppRoutePath(
+ "0.0.0.0",
+ mpls_tun1.sw_if_index,
+ type=FibPathType.FIB_PATH_TYPE_INTERFACE_RX,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_ETHERNET,
+ )
+ ],
+ eos_proto=FibPathProto.FIB_PATH_NH_PROTO_ETHERNET,
+ )
+
+ route_56_eos = VppMplsRoute(
+ self,
+ 56,
+ 1,
+ [
+ VppRoutePath(
+ "0.0.0.0",
+ mpls_tun2.sw_if_index,
+ type=FibPathType.FIB_PATH_TYPE_INTERFACE_RX,
+ flags=FibPathFlags.FIB_PATH_FLAG_POP_PW_CW,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_ETHERNET,
+ )
+ ],
+ eos_proto=FibPathProto.FIB_PATH_NH_PROTO_ETHERNET,
+ )
+
+ # move me
+ route_56_eos.add_vpp_config()
+ route_55_eos.add_vpp_config()
+
+ self.logger.info(self.vapi.cli("sh mpls fib 56"))
+
+ #
+ # add to tunnel to the customers bridge-domain
+ #
+ self.vapi.sw_interface_set_l2_bridge(
+ rx_sw_if_index=mpls_tun1.sw_if_index, bd_id=1
+ )
+ self.vapi.sw_interface_set_l2_bridge(
+ rx_sw_if_index=mpls_tun2.sw_if_index, bd_id=1
+ )
+ self.vapi.sw_interface_set_l2_bridge(
+ rx_sw_if_index=self.pg1.sw_if_index, bd_id=1
+ )
+
+ #
+ # Packet from host on the customer interface to each host
+ # reachable over the core, and vice-versa
+ #
+ p_cust1 = (
+ Ether(dst="00:00:de:ad:ba:b1", src="00:00:de:ad:be:ef")
+ / IP(src="10.10.10.10", dst="11.11.11.11")
+ / UDP(sport=1234, dport=1234)
+ / Raw(b"\xa5" * 100)
+ )
+ p_cust2 = (
+ Ether(dst="00:00:de:ad:ba:b2", src="00:00:de:ad:be:ef")
+ / IP(src="10.10.10.10", dst="11.11.11.12")
+ / UDP(sport=1234, dport=1234)
+ / Raw(b"\xa5" * 100)
+ )
+ p_core1 = (
+ Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
+ / MPLS(label=55, ttl=64)
+ / Ether(src="00:00:de:ad:ba:b1", dst="00:00:de:ad:be:ef")
+ / IP(dst="10.10.10.10", src="11.11.11.11")
+ / UDP(sport=1234, dport=1234)
+ / Raw(b"\xa5" * 100)
+ )
+ p_core2 = (
+ Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
+ / MPLS(label=56, ttl=64)
+ / Raw(b"\x01" * 4)
+ / Ether(src="00:00:de:ad:ba:b2", dst="00:00:de:ad:be:ef") # PW CW
+ / IP(dst="10.10.10.10", src="11.11.11.12")
+ / UDP(sport=1234, dport=1234)
+ / Raw(b"\xa5" * 100)
+ )
+
+ #
+ # The BD is learning, so send in one of each packet to learn
+ #
+
+ # 2 packets due to BD flooding
+ rx = self.send_and_expect(self.pg1, p_cust1, self.pg0, n_rx=2)
+ rx = self.send_and_expect(self.pg1, p_cust2, self.pg0, n_rx=2)
+
+ # we've learnt this so expect it be be forwarded not flooded
+ rx = self.send_and_expect(self.pg0, [p_core1], self.pg1)
+ self.assertEqual(rx[0][Ether].dst, p_cust1[Ether].src)
+ self.assertEqual(rx[0][Ether].src, p_cust1[Ether].dst)
+
+ rx = self.send_and_expect(self.pg0, [p_core2], self.pg1)
+ self.assertEqual(rx[0][Ether].dst, p_cust2[Ether].src)
+ self.assertEqual(rx[0][Ether].src, p_cust2[Ether].dst)
+
+ #
+ # now a stream in each direction from each host
+ #
+ rx = self.send_and_expect(self.pg1, p_cust1 * NUM_PKTS, self.pg0)
+ self.verify_capture_tunneled_ethernet(
+ rx, p_cust1 * NUM_PKTS, [VppMplsLabel(42)]
+ )
+
+ rx = self.send_and_expect(self.pg1, p_cust2 * NUM_PKTS, self.pg0)
+ self.verify_capture_tunneled_ethernet(
+ rx, p_cust2 * NUM_PKTS, [VppMplsLabel(43)]
+ )
+
+ rx = self.send_and_expect(self.pg0, p_core1 * NUM_PKTS, self.pg1)
+ rx = self.send_and_expect(self.pg0, p_core2 * NUM_PKTS, self.pg1)
+
+ #
+ # remove interfaces from customers bridge-domain
+ #
+ self.vapi.sw_interface_set_l2_bridge(
+ rx_sw_if_index=mpls_tun1.sw_if_index, bd_id=1, enable=0
+ )
+ self.vapi.sw_interface_set_l2_bridge(
+ rx_sw_if_index=mpls_tun2.sw_if_index, bd_id=1, enable=0
+ )
+ self.vapi.sw_interface_set_l2_bridge(
+ rx_sw_if_index=self.pg1.sw_if_index, bd_id=1, enable=0
+ )
+
+
+if __name__ == "__main__":
unittest.main(testRunner=VppTestRunner)
Code Review / vpp.git / blobdiff