-#!/usr/bin/env python
+#!/usr/bin/env python3
import unittest
-import socket
-from logging import *
-
-from framework import VppTestCase, VppTestRunner
-from vpp_sub_interface import VppSubInterface, VppDot1QSubint, VppDot1ADSubint
-from vpp_gre_interface import VppGreInterface
-from vpp_ip_route import IpRoute, IpPath
-from vpp_papi_provider import L2_VTR_OP
+import scapy.compat
from scapy.packet import Raw
-from scapy.layers.l2 import Ether, Dot1Q, ARP, GRE
+from scapy.layers.l2 import Ether, Dot1Q, GRE
from scapy.layers.inet import IP, UDP
-from scapy.layers.inet6 import ICMPv6ND_NS, ICMPv6ND_RA, IPv6, UDP
-from scapy.contrib.mpls import MPLS
+from scapy.layers.inet6 import IPv6
from scapy.volatile import RandMAC, RandIP
+from framework import tag_fixme_vpp_workers
+from framework import VppTestCase, VppTestRunner
+from vpp_sub_interface import L2_VTR_OP, VppDot1QSubint
+from vpp_gre_interface import VppGreInterface
+from vpp_teib import VppTeib
+from vpp_ip import DpoProto
+from vpp_ip_route import (
+ VppIpRoute,
+ VppRoutePath,
+ VppIpTable,
+ FibPathProto,
+ VppMplsLabel,
+)
+from vpp_mpls_tunnel_interface import VppMPLSTunnelInterface
+from util import ppp, ppc
+from vpp_papi import VppEnum
+
+
+@tag_fixme_vpp_workers
+class TestGREInputNodes(VppTestCase):
+ """GRE Input Nodes Test Case"""
+
+ def setUp(self):
+ super(TestGREInputNodes, self).setUp()
+
+ # create 3 pg interfaces - set one in a non-default table.
+ self.create_pg_interfaces(range(1))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+
+ def tearDown(self):
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.admin_down()
+ super(TestGREInputNodes, self).tearDown()
+
+ def test_gre_input_node(self):
+ """GRE gre input nodes not registerd unless configured"""
+ pkt = (
+ Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
+ / IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4)
+ / GRE()
+ )
+
+ self.pg0.add_stream(pkt)
+ self.pg_start()
+ # no tunnel created, gre-input not registered
+ err = self.statistics.get_counter("/err/ip4-local/unknown_protocol")[0]
+ self.assertEqual(err, 1)
+ err_count = err
+
+ # create gre tunnel
+ gre_if = VppGreInterface(self, self.pg0.local_ip4, "1.1.1.2")
+ gre_if.add_vpp_config()
+
+ self.pg0.add_stream(pkt)
+ self.pg_start()
+ # tunnel created, gre-input registered
+ err = self.statistics.get_counter("/err/ip4-local/unknown_protocol")[0]
+ # expect no new errors
+ self.assertEqual(err, err_count)
+
class TestGRE(VppTestCase):
- """ GRE Test Case """
+ """GRE Test Case"""
@classmethod
def setUpClass(cls):
super(TestGRE, cls).setUpClass()
+ @classmethod
+ def tearDownClass(cls):
+ super(TestGRE, cls).tearDownClass()
+
def setUp(self):
super(TestGRE, self).setUp()
- # create 2 pg interfaces - set one in a non-default table.
- self.create_pg_interfaces(range(2))
+ # create 3 pg interfaces - set one in a non-default table.
+ self.create_pg_interfaces(range(5))
+ self.tbl = VppIpTable(self, 1)
+ self.tbl.add_vpp_config()
self.pg1.set_table_ip4(1)
+
for i in self.pg_interfaces:
i.admin_up()
- i.config_ip4()
- i.resolve_arp()
+
+ self.pg0.config_ip4()
+ self.pg0.resolve_arp()
+ self.pg1.config_ip4()
+ self.pg1.resolve_arp()
+ self.pg2.config_ip6()
+ self.pg2.resolve_ndp()
+ self.pg3.config_ip4()
+ self.pg3.resolve_arp()
+ self.pg4.config_ip4()
+ self.pg4.resolve_arp()
def tearDown(self):
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.unconfig_ip6()
+ i.admin_down()
+ self.pg1.set_table_ip4(0)
super(TestGRE, self).tearDown()
- def create_stream_ip4(self, src_if, src_ip, dst_ip):
+ def create_stream_ip4(self, src_if, src_ip, dst_ip, dscp=0, ecn=0):
pkts = []
+ tos = (dscp << 2) | ecn
for i in range(0, 257):
- info = self.create_packet_info(src_if.sw_if_index,
- src_if.sw_if_index)
+ 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))
+ p = (
+ Ether(dst=src_if.local_mac, src=src_if.remote_mac)
+ / IP(src=src_ip, dst=dst_ip, tos=tos)
+ / UDP(sport=1234, dport=1234)
+ / Raw(payload)
+ )
info.data = p.copy()
pkts.append(p)
return pkts
- def create_tunnel_stream_4o4(self, src_if,
- tunnel_src, tunnel_dst,
- src_ip, dst_ip):
+ def create_stream_ip6(self, src_if, src_ip, dst_ip, dscp=0, ecn=0):
pkts = []
+ tc = (dscp << 2) | ecn
for i in range(0, 257):
- info = self.create_packet_info(src_if.sw_if_index,
- src_if.sw_if_index)
+ 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=tunnel_src, dst=tunnel_dst) /
- GRE() /
- IP(src=src_ip, dst=dst_ip) /
- UDP(sport=1234, dport=1234) /
- Raw(payload))
+ p = (
+ Ether(dst=src_if.local_mac, src=src_if.remote_mac)
+ / IPv6(src=src_ip, dst=dst_ip, tc=tc)
+ / UDP(sport=1234, dport=1234)
+ / Raw(payload)
+ )
info.data = p.copy()
pkts.append(p)
return pkts
- def create_tunnel_stream_6o4(self, src_if,
- tunnel_src, tunnel_dst,
- src_ip, dst_ip):
+ def create_tunnel_stream_4o4(self, src_if, tunnel_src, tunnel_dst, src_ip, dst_ip):
pkts = []
for i in range(0, 257):
- info = self.create_packet_info(src_if.sw_if_index,
- src_if.sw_if_index)
+ 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=tunnel_src, dst=tunnel_dst) /
- GRE() /
- IPv6(src=src_ip, dst=dst_ip) /
- UDP(sport=1234, dport=1234) /
- Raw(payload))
+ p = (
+ Ether(dst=src_if.local_mac, src=src_if.remote_mac)
+ / IP(src=tunnel_src, dst=tunnel_dst)
+ / GRE()
+ / IP(src=src_ip, dst=dst_ip)
+ / UDP(sport=1234, dport=1234)
+ / Raw(payload)
+ )
info.data = p.copy()
pkts.append(p)
return pkts
- def create_tunnel_stream_l2o4(self, src_if,
- tunnel_src, tunnel_dst):
+ def create_tunnel_stream_6o4(self, src_if, tunnel_src, tunnel_dst, src_ip, dst_ip):
pkts = []
for i in range(0, 257):
- info = self.create_packet_info(src_if.sw_if_index,
- src_if.sw_if_index)
+ 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=tunnel_src, dst=tunnel_dst) /
- GRE() /
- Ether(dst=RandMAC('*:*:*:*:*:*'),
- src=RandMAC('*:*:*:*:*:*')) /
- IP(src=str(RandIP()), dst=str(RandIP())) /
- UDP(sport=1234, dport=1234) /
- Raw(payload))
+ p = (
+ Ether(dst=src_if.local_mac, src=src_if.remote_mac)
+ / IP(src=tunnel_src, dst=tunnel_dst)
+ / GRE()
+ / IPv6(src=src_ip, dst=dst_ip)
+ / UDP(sport=1234, dport=1234)
+ / Raw(payload)
+ )
info.data = p.copy()
pkts.append(p)
return pkts
- def create_tunnel_stream_vlano4(self, src_if,
- tunnel_src, tunnel_dst, vlan):
+ def create_tunnel_stream_6o6(self, src_if, tunnel_src, tunnel_dst, src_ip, dst_ip):
pkts = []
for i in range(0, 257):
- info = self.create_packet_info(src_if.sw_if_index,
- src_if.sw_if_index)
+ 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=tunnel_src, dst=tunnel_dst) /
- GRE() /
- Ether(dst=RandMAC('*:*:*:*:*:*'),
- src=RandMAC('*:*:*:*:*:*')) /
- Dot1Q(vlan=vlan) /
- IP(src=str(RandIP()), dst=str(RandIP())) /
- UDP(sport=1234, dport=1234) /
- Raw(payload))
+ p = (
+ Ether(dst=src_if.local_mac, src=src_if.remote_mac)
+ / IPv6(src=tunnel_src, dst=tunnel_dst)
+ / GRE()
+ / IPv6(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
- for p in capture:
- if (p.haslayer(ICMPv6ND_RA)):
- capture.remove(p)
- return capture
+ def create_tunnel_stream_l2o4(self, src_if, tunnel_src, tunnel_dst):
+ 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=tunnel_src, dst=tunnel_dst)
+ / GRE()
+ / Ether(dst=RandMAC("*:*:*:*:*:*"), src=RandMAC("*:*:*:*:*:*"))
+ / IP(src=scapy.compat.raw(RandIP()), dst=scapy.compat.raw(RandIP()))
+ / UDP(sport=1234, dport=1234)
+ / Raw(payload)
+ )
+ info.data = p.copy()
+ pkts.append(p)
+ return pkts
+
+ def create_tunnel_stream_vlano4(self, src_if, tunnel_src, tunnel_dst, vlan):
+ 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=tunnel_src, dst=tunnel_dst)
+ / GRE()
+ / Ether(dst=RandMAC("*:*:*:*:*:*"), src=RandMAC("*:*:*:*:*:*"))
+ / Dot1Q(vlan=vlan)
+ / IP(src=scapy.compat.raw(RandIP()), dst=scapy.compat.raw(RandIP()))
+ / UDP(sport=1234, dport=1234)
+ / Raw(payload)
+ )
+ info.data = p.copy()
+ pkts.append(p)
+ return pkts
- def verify_tunneled_4o4(self, src_if, capture, sent,
- tunnel_src, tunnel_dst):
+ def verify_tunneled_4o4(
+ self, src_if, capture, sent, tunnel_src, tunnel_dst, dscp=0, ecn=0
+ ):
- capture = self.verify_filter(capture, sent)
self.assertEqual(len(capture), len(sent))
+ tos = (dscp << 2) | ecn
for i in range(len(capture)):
try:
self.assertEqual(rx_ip.src, tunnel_src)
self.assertEqual(rx_ip.dst, tunnel_dst)
+ self.assertEqual(rx_ip.tos, tos)
+ self.assertEqual(rx_ip.len, len(rx_ip))
rx_gre = rx[GRE]
rx_ip = rx_gre[IP]
self.assertEqual(rx_ip.ttl + 1, tx_ip.ttl)
except:
- rx.show()
- tx.show()
+ self.logger.error(ppp("Rx:", rx))
+ self.logger.error(ppp("Tx:", tx))
raise
- def verify_tunneled_l2o4(self, src_if, capture, sent,
- tunnel_src, tunnel_dst):
- capture = self.verify_filter(capture, sent)
+ def verify_tunneled_6o6(
+ self, src_if, capture, sent, tunnel_src, tunnel_dst, dscp=0, ecn=0
+ ):
+
self.assertEqual(len(capture), len(sent))
+ tc = (dscp << 2) | ecn
for i in range(len(capture)):
try:
tx = sent[i]
rx = capture[i]
+ tx_ip = tx[IPv6]
+ rx_ip = rx[IPv6]
+
+ self.assertEqual(rx_ip.src, tunnel_src)
+ self.assertEqual(rx_ip.dst, tunnel_dst)
+ self.assertEqual(rx_ip.tc, tc)
+
+ rx_gre = GRE(scapy.compat.raw(rx_ip[IPv6].payload))
+
+ self.assertEqual(rx_ip.plen, len(rx_gre))
+
+ rx_ip = rx_gre[IPv6]
+
+ self.assertEqual(rx_ip.src, tx_ip.src)
+ self.assertEqual(rx_ip.dst, tx_ip.dst)
+
+ except:
+ self.logger.error(ppp("Rx:", rx))
+ self.logger.error(ppp("Tx:", tx))
+ raise
+
+ def verify_tunneled_4o6(self, src_if, capture, sent, tunnel_src, tunnel_dst):
+
+ self.assertEqual(len(capture), len(sent))
+
+ for i in range(len(capture)):
+ try:
+ tx = sent[i]
+ rx = capture[i]
+
+ rx_ip = rx[IPv6]
+
+ self.assertEqual(rx_ip.src, tunnel_src)
+ self.assertEqual(rx_ip.dst, tunnel_dst)
+
+ rx_gre = GRE(scapy.compat.raw(rx_ip[IPv6].payload))
+
+ self.assertEqual(rx_ip.plen, len(rx_gre))
+
tx_ip = tx[IP]
+ rx_ip = rx_gre[IP]
+
+ self.assertEqual(rx_ip.src, tx_ip.src)
+ self.assertEqual(rx_ip.dst, tx_ip.dst)
+
+ except:
+ self.logger.error(ppp("Rx:", rx))
+ self.logger.error(ppp("Tx:", tx))
+ raise
+
+ def verify_tunneled_6o4(self, src_if, capture, sent, tunnel_src, tunnel_dst):
+
+ self.assertEqual(len(capture), len(sent))
+
+ for i in range(len(capture)):
+ try:
+ tx = sent[i]
+ rx = capture[i]
+
rx_ip = rx[IP]
self.assertEqual(rx_ip.src, tunnel_src)
self.assertEqual(rx_ip.dst, tunnel_dst)
+ self.assertEqual(rx_ip.len, len(rx_ip))
+
+ rx_gre = GRE(scapy.compat.raw(rx_ip[IP].payload))
+ rx_ip = rx_gre[IPv6]
+ tx_ip = tx[IPv6]
+
+ self.assertEqual(rx_ip.src, tx_ip.src)
+ self.assertEqual(rx_ip.dst, tx_ip.dst)
+
+ except:
+ self.logger.error(ppp("Rx:", rx))
+ self.logger.error(ppp("Tx:", tx))
+ raise
+
+ def verify_tunneled_l2o4(self, src_if, capture, sent, tunnel_src, tunnel_dst):
+ self.assertEqual(len(capture), len(sent))
+
+ for i in range(len(capture)):
+ try:
+ tx = sent[i]
+ rx = capture[i]
+
+ tx_ip = tx[IP]
+ rx_ip = rx[IP]
+
+ self.assertEqual(rx_ip.src, tunnel_src)
+ self.assertEqual(rx_ip.dst, tunnel_dst)
+ self.assertEqual(rx_ip.len, len(rx_ip))
rx_gre = rx[GRE]
rx_l2 = rx_gre[Ether]
self.assertEqual(rx_ip.ttl, tx_ip.ttl)
except:
- rx.show()
- tx.show()
+ self.logger.error(ppp("Rx:", rx))
+ self.logger.error(ppp("Tx:", tx))
raise
- def verify_tunneled_vlano4(self, src_if, capture, sent,
- tunnel_src, tunnel_dst, vlan):
+ def verify_tunneled_vlano4(
+ self, src_if, capture, sent, tunnel_src, tunnel_dst, vlan
+ ):
try:
- capture = self.verify_filter(capture, sent)
self.assertEqual(len(capture), len(sent))
except:
- capture.show()
+ ppc("Unexpected packets captured:", capture)
raise
for i in range(len(capture)):
self.assertEqual(rx_ip.ttl, tx_ip.ttl)
except:
- rx.show()
- tx.show()
+ self.logger.error(ppp("Rx:", rx))
+ self.logger.error(ppp("Tx:", tx))
raise
def verify_decapped_4o4(self, src_if, capture, sent):
- capture = self.verify_filter(capture, sent)
self.assertEqual(len(capture), len(sent))
for i in range(len(capture)):
self.assertEqual(rx_ip.ttl + 1, tx_ip.ttl)
except:
- rx.show()
- tx.show()
+ self.logger.error(ppp("Rx:", rx))
+ self.logger.error(ppp("Tx:", tx))
raise
def verify_decapped_6o4(self, src_if, capture, sent):
- capture = self.verify_filter(capture, sent)
self.assertEqual(len(capture), len(sent))
for i in range(len(capture)):
self.assertEqual(rx_ip.hlim + 1, tx_ip.hlim)
except:
- rx.show()
- tx.show()
+ self.logger.error(ppp("Rx:", rx))
+ self.logger.error(ppp("Tx:", tx))
+ raise
+
+ def verify_decapped_6o6(self, src_if, capture, sent):
+ self.assertEqual(len(capture), len(sent))
+
+ for i in range(len(capture)):
+ try:
+ tx = sent[i]
+ rx = capture[i]
+
+ tx_ip = tx[IPv6]
+ rx_ip = rx[IPv6]
+ tx_gre = tx[GRE]
+ tx_ip = tx_gre[IPv6]
+
+ self.assertEqual(rx_ip.src, tx_ip.src)
+ self.assertEqual(rx_ip.dst, tx_ip.dst)
+ self.assertEqual(rx_ip.hlim + 1, tx_ip.hlim)
+
+ except:
+ self.logger.error(ppp("Rx:", rx))
+ self.logger.error(ppp("Tx:", tx))
raise
def test_gre(self):
- """ GRE tunnel Tests """
+ """GRE IPv4 tunnel Tests"""
#
# Create an L3 GRE tunnel.
# - assign an IP Addres
# - Add a route via the tunnel
#
- gre_if = VppGreInterface(self,
- self.pg0.local_ip4,
- "1.1.1.2")
+ gre_if = VppGreInterface(self, self.pg0.local_ip4, "1.1.1.2")
gre_if.add_vpp_config()
#
gre_if.admin_up()
gre_if.config_ip4()
- route_via_tun = IpRoute(self, "4.4.4.4", 32,
- [IpPath("0.0.0.0", gre_if.sw_if_index)])
+ route_via_tun = VppIpRoute(
+ self, "4.4.4.4", 32, [VppRoutePath("0.0.0.0", gre_if.sw_if_index)]
+ )
route_via_tun.add_vpp_config()
#
# Send a packet stream that is routed into the tunnel
- # - they are all dropped since the tunnel's desintation IP
+ # - they are all dropped since the tunnel's destintation IP
# is unresolved - or resolves via the default route - which
# which is a drop.
#
tx = self.create_stream_ip4(self.pg0, "5.5.5.5", "4.4.4.4")
- self.pg0.add_stream(tx)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
-
- try:
- self.assertEqual(0, len(rx))
- except:
- error("GRE packets forwarded without DIP resolved")
- error(rx.show())
- raise
+ self.send_and_assert_no_replies(self.pg0, tx)
#
# Add a route that resolves the tunnel's destination
#
- route_tun_dst = IpRoute(self, "1.1.1.2", 32,
- [IpPath(self.pg0.remote_ip4, self.pg0.sw_if_index)])
+ route_tun_dst = VppIpRoute(
+ self,
+ "1.1.1.2",
+ 32,
+ [VppRoutePath(self.pg0.remote_ip4, self.pg0.sw_if_index)],
+ )
route_tun_dst.add_vpp_config()
#
# Send a packet stream that is routed into the tunnel
# - packets are GRE encapped
#
- self.vapi.cli("clear trace")
tx = self.create_stream_ip4(self.pg0, "5.5.5.5", "4.4.4.4")
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
- self.verify_tunneled_4o4(self.pg0, rx, tx,
- self.pg0.local_ip4, "1.1.1.2")
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_tunneled_4o4(self.pg0, rx, tx, self.pg0.local_ip4, "1.1.1.2")
#
# Send tunneled packets that match the created tunnel and
# are decapped and forwarded
#
- self.vapi.cli("clear trace")
- tx = self.create_tunnel_stream_4o4(self.pg0,
- "1.1.1.2",
- self.pg0.local_ip4,
- self.pg0.local_ip4,
- self.pg0.remote_ip4)
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
+ tx = self.create_tunnel_stream_4o4(
+ self.pg0,
+ "1.1.1.2",
+ self.pg0.local_ip4,
+ self.pg0.local_ip4,
+ self.pg0.remote_ip4,
+ )
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
self.verify_decapped_4o4(self.pg0, rx, tx)
#
# Send tunneled packets that do not match the tunnel's src
#
self.vapi.cli("clear trace")
- tx = self.create_tunnel_stream_4o4(self.pg0,
- "1.1.1.3",
- self.pg0.local_ip4,
- self.pg0.local_ip4,
- self.pg0.remote_ip4)
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
- try:
- self.assertEqual(0, len(rx))
- except:
- error("GRE packets forwarded despite no SRC address match")
- error(rx.show())
- raise
+ tx = self.create_tunnel_stream_4o4(
+ self.pg0,
+ "1.1.1.3",
+ self.pg0.local_ip4,
+ self.pg0.local_ip4,
+ self.pg0.remote_ip4,
+ )
+ self.send_and_assert_no_replies(
+ self.pg0, tx, remark="GRE packets forwarded despite no SRC address match"
+ )
#
# Configure IPv6 on the PG interface so we can route IPv6
# Send IPv6 tunnel encapslated packets
# - dropped since IPv6 is not enabled on the tunnel
#
- self.vapi.cli("clear trace")
- tx = self.create_tunnel_stream_6o4(self.pg0,
- "1.1.1.2",
- self.pg0.local_ip4,
- self.pg0.local_ip6,
- self.pg0.remote_ip6)
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
- try:
- self.assertEqual(0, len(rx))
- except:
- error("IPv6 GRE packets forwarded despite IPv6 not enabled on tunnel")
- error(rx.show())
- raise
+ tx = self.create_tunnel_stream_6o4(
+ self.pg0,
+ "1.1.1.2",
+ self.pg0.local_ip4,
+ self.pg0.local_ip6,
+ self.pg0.remote_ip6,
+ )
+ self.send_and_assert_no_replies(
+ self.pg0,
+ tx,
+ "IPv6 GRE packets forwarded despite IPv6 not enabled on tunnel",
+ )
#
# Enable IPv6 on the tunnel
# Send IPv6 tunnel encapslated packets
# - forwarded since IPv6 is enabled on the tunnel
#
- self.vapi.cli("clear trace")
- tx = self.create_tunnel_stream_6o4(self.pg0,
- "1.1.1.2",
- self.pg0.local_ip4,
- self.pg0.local_ip6,
- self.pg0.remote_ip6)
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
+ tx = self.create_tunnel_stream_6o4(
+ self.pg0,
+ "1.1.1.2",
+ self.pg0.local_ip4,
+ self.pg0.local_ip6,
+ self.pg0.remote_ip6,
+ )
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
self.verify_decapped_6o4(self.pg0, rx, tx)
+ #
+ # Send v6 packets for v4 encap
+ #
+ route6_via_tun = VppIpRoute(
+ self,
+ "2001::1",
+ 128,
+ [VppRoutePath("::", gre_if.sw_if_index, proto=DpoProto.DPO_PROTO_IP6)],
+ )
+ route6_via_tun.add_vpp_config()
+
+ tx = self.create_stream_ip6(self.pg0, "2001::2", "2001::1")
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+
+ self.verify_tunneled_6o4(self.pg0, rx, tx, self.pg0.local_ip4, "1.1.1.2")
+
+ #
+ # add a labelled route through the tunnel
+ #
+ label_via_tun = VppIpRoute(
+ self,
+ "5.4.3.2",
+ 32,
+ [VppRoutePath("0.0.0.0", gre_if.sw_if_index, labels=[VppMplsLabel(33)])],
+ )
+ label_via_tun.add_vpp_config()
+
+ tx = self.create_stream_ip4(self.pg0, "5.5.5.5", "5.4.3.2")
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_tunneled_4o4(self.pg0, rx, tx, self.pg0.local_ip4, "1.1.1.2")
+
+ #
+ # an MPLS tunnel over the GRE tunnel add a route through
+ # the mpls tunnel
+ #
+ mpls_tun = VppMPLSTunnelInterface(
+ self,
+ [
+ VppRoutePath(
+ "0.0.0.0",
+ gre_if.sw_if_index,
+ labels=[VppMplsLabel(44), VppMplsLabel(46)],
+ )
+ ],
+ )
+ mpls_tun.add_vpp_config()
+ mpls_tun.admin_up()
+
+ label_via_mpls = VppIpRoute(
+ self,
+ "5.4.3.1",
+ 32,
+ [VppRoutePath("0.0.0.0", mpls_tun.sw_if_index, labels=[VppMplsLabel(33)])],
+ )
+ label_via_mpls.add_vpp_config()
+
+ tx = self.create_stream_ip4(self.pg0, "5.5.5.5", "5.4.3.1")
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_tunneled_4o4(self.pg0, rx, tx, self.pg0.local_ip4, "1.1.1.2")
+
+ mpls_tun_l2 = VppMPLSTunnelInterface(
+ self,
+ [
+ VppRoutePath(
+ "0.0.0.0",
+ gre_if.sw_if_index,
+ labels=[VppMplsLabel(44), VppMplsLabel(46)],
+ )
+ ],
+ is_l2=1,
+ )
+ mpls_tun_l2.add_vpp_config()
+ mpls_tun_l2.admin_up()
+
#
# test case cleanup
#
route_tun_dst.remove_vpp_config()
route_via_tun.remove_vpp_config()
+ route6_via_tun.remove_vpp_config()
+ label_via_mpls.remove_vpp_config()
+ label_via_tun.remove_vpp_config()
+ mpls_tun.remove_vpp_config()
+ mpls_tun_l2.remove_vpp_config()
gre_if.remove_vpp_config()
self.pg0.unconfig_ip6()
+ def test_gre6(self):
+ """GRE IPv6 tunnel Tests"""
+
+ self.pg1.config_ip6()
+ self.pg1.resolve_ndp()
+
+ #
+ # Create an L3 GRE tunnel.
+ # - set it admin up
+ # - assign an IP Address
+ # - Add a route via the tunnel
+ #
+ gre_if = VppGreInterface(self, self.pg2.local_ip6, "1002::1")
+ gre_if.add_vpp_config()
+ gre_if.admin_up()
+ gre_if.config_ip6()
+
+ route_via_tun = VppIpRoute(
+ self, "4004::1", 128, [VppRoutePath("0::0", gre_if.sw_if_index)]
+ )
+
+ route_via_tun.add_vpp_config()
+
+ #
+ # Send a packet stream that is routed into the tunnel
+ # - they are all dropped since the tunnel's destintation IP
+ # is unresolved - or resolves via the default route - which
+ # which is a drop.
+ #
+ tx = self.create_stream_ip6(self.pg2, "5005::1", "4004::1")
+ self.send_and_assert_no_replies(
+ self.pg2, tx, "GRE packets forwarded without DIP resolved"
+ )
+
+ #
+ # Add a route that resolves the tunnel's destination
+ #
+ route_tun_dst = VppIpRoute(
+ self,
+ "1002::1",
+ 128,
+ [VppRoutePath(self.pg2.remote_ip6, self.pg2.sw_if_index)],
+ )
+ route_tun_dst.add_vpp_config()
+
+ #
+ # Send a packet stream that is routed into the tunnel
+ # - packets are GRE encapped
+ #
+ tx = self.create_stream_ip6(self.pg2, "5005::1", "4004::1")
+ rx = self.send_and_expect(self.pg2, tx, self.pg2)
+ self.verify_tunneled_6o6(self.pg2, rx, tx, self.pg2.local_ip6, "1002::1")
+
+ #
+ # Test decap. decapped packets go out pg1
+ #
+ tx = self.create_tunnel_stream_6o6(
+ self.pg2, "1002::1", self.pg2.local_ip6, "2001::1", self.pg1.remote_ip6
+ )
+ rx = self.send_and_expect(self.pg2, tx, self.pg1)
+
+ #
+ # RX'd packet is UDP over IPv6, test the GRE header is gone.
+ #
+ self.assertFalse(rx[0].haslayer(GRE))
+ self.assertEqual(rx[0][IPv6].dst, self.pg1.remote_ip6)
+
+ #
+ # Send v4 over v6
+ #
+ route4_via_tun = VppIpRoute(
+ self, "1.1.1.1", 32, [VppRoutePath("0.0.0.0", gre_if.sw_if_index)]
+ )
+ route4_via_tun.add_vpp_config()
+
+ tx = self.create_stream_ip4(self.pg0, "1.1.1.2", "1.1.1.1")
+ rx = self.send_and_expect(self.pg0, tx, self.pg2)
+
+ self.verify_tunneled_4o6(self.pg0, rx, tx, self.pg2.local_ip6, "1002::1")
+
+ #
+ # test case cleanup
+ #
+ route_tun_dst.remove_vpp_config()
+ route_via_tun.remove_vpp_config()
+ route4_via_tun.remove_vpp_config()
+ gre_if.remove_vpp_config()
+
+ self.pg2.unconfig_ip6()
+ self.pg1.unconfig_ip6()
+
def test_gre_vrf(self):
- """ GRE tunnel VRF Tests """
+ """GRE tunnel VRF Tests"""
+
+ e = VppEnum.vl_api_tunnel_encap_decap_flags_t
#
# Create an L3 GRE tunnel whose destination is in the non-default
# - set it admin up
# - assign an IP Addres
#
- gre_if = VppGreInterface(self, self.pg1.local_ip4,
- "2.2.2.2",
- outer_fib_id=1)
+ gre_if = VppGreInterface(
+ self,
+ self.pg1.local_ip4,
+ "2.2.2.2",
+ outer_table_id=1,
+ flags=(
+ e.TUNNEL_API_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP
+ | e.TUNNEL_API_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN
+ ),
+ )
+
gre_if.add_vpp_config()
gre_if.admin_up()
gre_if.config_ip4()
#
# Add a route via the tunnel - in the overlay
#
- route_via_tun = IpRoute(self, "9.9.9.9", 32,
- [IpPath("0.0.0.0", gre_if.sw_if_index)])
+ route_via_tun = VppIpRoute(
+ self, "9.9.9.9", 32, [VppRoutePath("0.0.0.0", gre_if.sw_if_index)]
+ )
route_via_tun.add_vpp_config()
#
# Add a route that resolves the tunnel's destination - in the
# underlay table
#
- route_tun_dst = IpRoute(self, "2.2.2.2", 32, table_id=1,
- paths=[IpPath(self.pg1.remote_ip4,
- self.pg1.sw_if_index)])
+ route_tun_dst = VppIpRoute(
+ self,
+ "2.2.2.2",
+ 32,
+ table_id=1,
+ paths=[VppRoutePath(self.pg1.remote_ip4, self.pg1.sw_if_index)],
+ )
route_tun_dst.add_vpp_config()
#
# - packets are GRE encapped
#
self.vapi.cli("clear trace")
- tx = self.create_stream_ip4(self.pg0, "5.5.5.5", "9.9.9.9")
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg1.get_capture()
- self.verify_tunneled_4o4(self.pg1, rx, tx,
- self.pg1.local_ip4, "2.2.2.2")
+ tx = self.create_stream_ip4(self.pg0, "5.5.5.5", "9.9.9.9", dscp=5, ecn=3)
+ rx = self.send_and_expect(self.pg0, tx, self.pg1)
+ self.verify_tunneled_4o4(
+ self.pg1, rx, tx, self.pg1.local_ip4, "2.2.2.2", dscp=5, ecn=3
+ )
#
# Send tunneled packets that match the created tunnel and
# does not happen in the encap table
#
self.vapi.cli("clear trace")
- tx = self.create_tunnel_stream_4o4(self.pg1,
- "2.2.2.2",
- self.pg1.local_ip4,
- self.pg0.local_ip4,
- self.pg0.remote_ip4)
- self.pg1.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
+ tx = self.create_tunnel_stream_4o4(
+ self.pg1,
+ "2.2.2.2",
+ self.pg1.local_ip4,
+ self.pg0.local_ip4,
+ self.pg0.remote_ip4,
+ )
+ rx = self.send_and_expect(self.pg1, tx, self.pg0)
self.verify_decapped_4o4(self.pg0, rx, tx)
+ #
+ # Send tunneled packets that match the created tunnel
+ # but arrive on an interface that is not in the tunnel's
+ # encap VRF, these are dropped.
+ # IP enable the interface so they aren't dropped due to
+ # IP not being enabled.
+ #
+ self.pg2.config_ip4()
+ self.vapi.cli("clear trace")
+ tx = self.create_tunnel_stream_4o4(
+ self.pg2,
+ "2.2.2.2",
+ self.pg1.local_ip4,
+ self.pg0.local_ip4,
+ self.pg0.remote_ip4,
+ )
+ rx = self.send_and_assert_no_replies(
+ self.pg2, tx, "GRE decap packets in wrong VRF"
+ )
+
+ self.pg2.unconfig_ip4()
+
#
# test case cleanup
#
gre_if.remove_vpp_config()
def test_gre_l2(self):
- """ GRE tunnel L2 Tests """
+ """GRE tunnel L2 Tests"""
#
# Add routes to resolve the tunnel destinations
#
- route_tun1_dst = IpRoute(self, "2.2.2.2", 32,
- [IpPath(self.pg0.remote_ip4,
- self.pg0.sw_if_index)])
- route_tun2_dst = IpRoute(self, "2.2.2.3", 32,
- [IpPath(self.pg0.remote_ip4,
- self.pg0.sw_if_index)])
+ route_tun1_dst = VppIpRoute(
+ self,
+ "2.2.2.2",
+ 32,
+ [VppRoutePath(self.pg0.remote_ip4, self.pg0.sw_if_index)],
+ )
+ route_tun2_dst = VppIpRoute(
+ self,
+ "2.2.2.3",
+ 32,
+ [VppRoutePath(self.pg0.remote_ip4, self.pg0.sw_if_index)],
+ )
route_tun1_dst.add_vpp_config()
route_tun2_dst.add_vpp_config()
#
# Create 2 L2 GRE tunnels and x-connect them
#
- gre_if1 = VppGreInterface(self, self.pg0.local_ip4,
- "2.2.2.2",
- is_teb=1)
- gre_if2 = VppGreInterface(self, self.pg0.local_ip4,
- "2.2.2.3",
- is_teb=1)
+ gre_if1 = VppGreInterface(
+ self,
+ self.pg0.local_ip4,
+ "2.2.2.2",
+ type=(VppEnum.vl_api_gre_tunnel_type_t.GRE_API_TUNNEL_TYPE_TEB),
+ )
+ gre_if2 = VppGreInterface(
+ self,
+ self.pg0.local_ip4,
+ "2.2.2.3",
+ type=(VppEnum.vl_api_gre_tunnel_type_t.GRE_API_TUNNEL_TYPE_TEB),
+ )
gre_if1.add_vpp_config()
gre_if2.add_vpp_config()
gre_if1.admin_up()
gre_if2.admin_up()
- self.vapi.sw_interface_set_l2_xconnect(gre_if1.sw_if_index,
- gre_if2.sw_if_index,
- enable=1)
- self.vapi.sw_interface_set_l2_xconnect(gre_if2.sw_if_index,
- gre_if1.sw_if_index,
- enable=1)
+ self.vapi.sw_interface_set_l2_xconnect(
+ gre_if1.sw_if_index, gre_if2.sw_if_index, enable=1
+ )
+ self.vapi.sw_interface_set_l2_xconnect(
+ gre_if2.sw_if_index, gre_if1.sw_if_index, enable=1
+ )
#
# Send in tunnel encapped L2. expect out tunnel encapped L2
# in both directions
#
- self.vapi.cli("clear trace")
- tx = self.create_tunnel_stream_l2o4(self.pg0,
- "2.2.2.2",
- self.pg0.local_ip4)
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
+ tx = self.create_tunnel_stream_l2o4(self.pg0, "2.2.2.2", self.pg0.local_ip4)
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_tunneled_l2o4(self.pg0, rx, tx, self.pg0.local_ip4, "2.2.2.3")
- rx = self.pg0.get_capture()
- self.verify_tunneled_l2o4(self.pg0, rx, tx,
- self.pg0.local_ip4,
- "2.2.2.3")
+ tx = self.create_tunnel_stream_l2o4(self.pg0, "2.2.2.3", self.pg0.local_ip4)
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_tunneled_l2o4(self.pg0, rx, tx, self.pg0.local_ip4, "2.2.2.2")
- self.vapi.cli("clear trace")
- tx = self.create_tunnel_stream_l2o4(self.pg0,
- "2.2.2.3",
- self.pg0.local_ip4)
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
- self.verify_tunneled_l2o4(self.pg0, rx, tx,
- self.pg0.local_ip4,
- "2.2.2.2")
-
- self.vapi.sw_interface_set_l2_xconnect(gre_if1.sw_if_index,
- gre_if2.sw_if_index,
- enable=0)
- self.vapi.sw_interface_set_l2_xconnect(gre_if2.sw_if_index,
- gre_if1.sw_if_index,
- enable=0)
+ self.vapi.sw_interface_set_l2_xconnect(
+ gre_if1.sw_if_index, gre_if2.sw_if_index, enable=0
+ )
+ self.vapi.sw_interface_set_l2_xconnect(
+ gre_if2.sw_if_index, gre_if1.sw_if_index, enable=0
+ )
#
# Create a VLAN sub-interfaces on the GRE TEB interfaces
gre_if_11.admin_up()
gre_if_12.admin_up()
- self.vapi.sw_interface_set_l2_xconnect(gre_if_11.sw_if_index,
- gre_if_12.sw_if_index,
- enable=1)
- self.vapi.sw_interface_set_l2_xconnect(gre_if_12.sw_if_index,
- gre_if_11.sw_if_index,
- enable=1)
+ self.vapi.sw_interface_set_l2_xconnect(
+ gre_if_11.sw_if_index, gre_if_12.sw_if_index, enable=1
+ )
+ self.vapi.sw_interface_set_l2_xconnect(
+ gre_if_12.sw_if_index, gre_if_11.sw_if_index, enable=1
+ )
#
# Configure both to pop thier respective VLAN tags,
# so that during the x-coonect they will subsequently push
#
- self.vapi.sw_interface_set_l2_tag_rewrite(gre_if_12.sw_if_index,
- L2_VTR_OP.L2_POP_1,
- 12)
- self.vapi.sw_interface_set_l2_tag_rewrite(gre_if_11.sw_if_index,
- L2_VTR_OP.L2_POP_1,
- 11)
+ self.vapi.l2_interface_vlan_tag_rewrite(
+ sw_if_index=gre_if_12.sw_if_index, vtr_op=L2_VTR_OP.L2_POP_1, push_dot1q=12
+ )
+ self.vapi.l2_interface_vlan_tag_rewrite(
+ sw_if_index=gre_if_11.sw_if_index, vtr_op=L2_VTR_OP.L2_POP_1, push_dot1q=11
+ )
#
# Send traffic in both directiond - expect the VLAN tags to
# be swapped.
#
- self.vapi.cli("clear trace")
- tx = self.create_tunnel_stream_vlano4(self.pg0,
- "2.2.2.2",
- self.pg0.local_ip4,
- 11)
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
- self.verify_tunneled_vlano4(self.pg0, rx, tx,
- self.pg0.local_ip4,
- "2.2.2.3",
- 12)
-
- self.vapi.cli("clear trace")
- tx = self.create_tunnel_stream_vlano4(self.pg0,
- "2.2.2.3",
- self.pg0.local_ip4,
- 12)
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
- self.verify_tunneled_vlano4(self.pg0, rx, tx,
- self.pg0.local_ip4,
- "2.2.2.2",
- 11)
+ tx = self.create_tunnel_stream_vlano4(
+ self.pg0, "2.2.2.2", self.pg0.local_ip4, 11
+ )
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_tunneled_vlano4(self.pg0, rx, tx, self.pg0.local_ip4, "2.2.2.3", 12)
+
+ tx = self.create_tunnel_stream_vlano4(
+ self.pg0, "2.2.2.3", self.pg0.local_ip4, 12
+ )
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_tunneled_vlano4(self.pg0, rx, tx, self.pg0.local_ip4, "2.2.2.2", 11)
#
# Cleanup Test resources
route_tun1_dst.add_vpp_config()
route_tun2_dst.add_vpp_config()
+ def test_gre_loop(self):
+ """GRE tunnel loop Tests"""
+
+ #
+ # Create an L3 GRE tunnel.
+ # - set it admin up
+ # - assign an IP Addres
+ #
+ gre_if = VppGreInterface(self, self.pg0.local_ip4, "1.1.1.2")
+ gre_if.add_vpp_config()
+ gre_if.admin_up()
+ gre_if.config_ip4()
+
+ #
+ # add a route to the tunnel's destination that points
+ # through the tunnel, hence forming a loop in the forwarding
+ # graph
+ #
+ route_dst = VppIpRoute(
+ self, "1.1.1.2", 32, [VppRoutePath("0.0.0.0", gre_if.sw_if_index)]
+ )
+ route_dst.add_vpp_config()
+
+ #
+ # packets to the tunnels destination should be dropped
+ #
+ tx = self.create_stream_ip4(self.pg0, "1.1.1.1", "1.1.1.2")
+ self.send_and_assert_no_replies(self.pg2, tx)
+
+ self.logger.info(self.vapi.ppcli("sh adj 7"))
+
+ #
+ # break the loop
+ #
+ route_dst.modify([VppRoutePath(self.pg1.remote_ip4, self.pg1.sw_if_index)])
+ route_dst.add_vpp_config()
+
+ rx = self.send_and_expect(self.pg0, tx, self.pg1)
+
+ #
+ # a good route throught the tunnel to check it restacked
+ #
+ route_via_tun_2 = VppIpRoute(
+ self, "2.2.2.2", 32, [VppRoutePath("0.0.0.0", gre_if.sw_if_index)]
+ )
+ route_via_tun_2.add_vpp_config()
+
+ tx = self.create_stream_ip4(self.pg0, "2.2.2.3", "2.2.2.2")
+ rx = self.send_and_expect(self.pg0, tx, self.pg1)
+ self.verify_tunneled_4o4(self.pg1, rx, tx, self.pg0.local_ip4, "1.1.1.2")
+
+ #
+ # cleanup
+ #
+ route_via_tun_2.remove_vpp_config()
+ gre_if.remove_vpp_config()
+
+ def test_mgre(self):
+ """mGRE IPv4 tunnel Tests"""
+
+ for itf in self.pg_interfaces[3:]:
+ #
+ # one underlay nh for each overlay/tunnel peer
+ #
+ itf.generate_remote_hosts(4)
+ itf.configure_ipv4_neighbors()
+
+ #
+ # Create an L3 GRE tunnel.
+ # - set it admin up
+ # - assign an IP Addres
+ # - Add a route via the tunnel
+ #
+ gre_if = VppGreInterface(
+ self,
+ itf.local_ip4,
+ "0.0.0.0",
+ mode=(VppEnum.vl_api_tunnel_mode_t.TUNNEL_API_MODE_MP),
+ )
+ gre_if.add_vpp_config()
+ gre_if.admin_up()
+ gre_if.config_ip4()
+ gre_if.generate_remote_hosts(4)
+
+ self.logger.info(self.vapi.cli("sh adj"))
+ self.logger.info(self.vapi.cli("sh ip fib"))
+
+ #
+ # ensure we don't match to the tunnel if the source address
+ # is all zeros
+ #
+ tx = self.create_tunnel_stream_4o4(
+ self.pg0,
+ "0.0.0.0",
+ itf.local_ip4,
+ self.pg0.local_ip4,
+ self.pg0.remote_ip4,
+ )
+ self.send_and_assert_no_replies(self.pg0, tx)
+
+ #
+ # for-each peer
+ #
+ for ii in range(1, 4):
+ route_addr = "4.4.4.%d" % ii
+ tx_e = self.create_stream_ip4(self.pg0, "5.5.5.5", route_addr)
+
+ #
+ # route traffic via the peer
+ #
+ route_via_tun = VppIpRoute(
+ self,
+ route_addr,
+ 32,
+ [VppRoutePath(gre_if._remote_hosts[ii].ip4, gre_if.sw_if_index)],
+ )
+ route_via_tun.add_vpp_config()
+
+ # all packets dropped at this point
+ rx = self.send_and_assert_no_replies(self.pg0, tx_e)
+
+ gre_if.admin_down()
+ gre_if.admin_up()
+ rx = self.send_and_assert_no_replies(self.pg0, tx_e)
+
+ #
+ # Add a TEIB entry resolves the peer
+ #
+ teib = VppTeib(
+ self,
+ gre_if,
+ gre_if._remote_hosts[ii].ip4,
+ itf._remote_hosts[ii].ip4,
+ )
+ teib.add_vpp_config()
+
+ #
+ # Send a packet stream that is routed into the tunnel
+ # - packets are GRE encapped
+ #
+ rx = self.send_and_expect(self.pg0, tx_e, itf)
+ self.verify_tunneled_4o4(
+ self.pg0, rx, tx_e, itf.local_ip4, itf._remote_hosts[ii].ip4
+ )
+
+ tx_i = self.create_tunnel_stream_4o4(
+ self.pg0,
+ itf._remote_hosts[ii].ip4,
+ itf.local_ip4,
+ self.pg0.local_ip4,
+ self.pg0.remote_ip4,
+ )
+ rx = self.send_and_expect(self.pg0, tx_i, self.pg0)
+ self.verify_decapped_4o4(self.pg0, rx, tx_i)
+
+ #
+ # delete and re-add the TEIB
+ #
+ teib.remove_vpp_config()
+ self.send_and_assert_no_replies(self.pg0, tx_e)
+ self.send_and_assert_no_replies(self.pg0, tx_i)
+
+ teib.add_vpp_config()
+ rx = self.send_and_expect(self.pg0, tx_e, itf)
+ self.verify_tunneled_4o4(
+ self.pg0, rx, tx_e, itf.local_ip4, itf._remote_hosts[ii].ip4
+ )
+ rx = self.send_and_expect(self.pg0, tx_i, self.pg0)
+ self.verify_decapped_4o4(self.pg0, rx, tx_i)
+
+ #
+ # bounce the interface state and try packets again
+ #
+ gre_if.admin_down()
+ gre_if.admin_up()
+ rx = self.send_and_expect(self.pg0, tx_e, itf)
+ self.verify_tunneled_4o4(
+ self.pg0, rx, tx_e, itf.local_ip4, itf._remote_hosts[ii].ip4
+ )
+ rx = self.send_and_expect(self.pg0, tx_i, self.pg0)
+ self.verify_decapped_4o4(self.pg0, rx, tx_i)
+
+ gre_if.admin_down()
+ gre_if.unconfig_ip4()
+
+ def test_mgre6(self):
+ """mGRE IPv6 tunnel Tests"""
+
+ self.pg0.config_ip6()
+ self.pg0.resolve_ndp()
+
+ e = VppEnum.vl_api_tunnel_encap_decap_flags_t
+
+ for itf in self.pg_interfaces[3:]:
+ #
+ # one underlay nh for each overlay/tunnel peer
+ #
+ itf.config_ip6()
+ itf.generate_remote_hosts(4)
+ itf.configure_ipv6_neighbors()
+
+ #
+ # Create an L3 GRE tunnel.
+ # - set it admin up
+ # - assign an IP Addres
+ # - Add a route via the tunnel
+ #
+ gre_if = VppGreInterface(
+ self,
+ itf.local_ip6,
+ "::",
+ mode=(VppEnum.vl_api_tunnel_mode_t.TUNNEL_API_MODE_MP),
+ flags=e.TUNNEL_API_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP,
+ )
+
+ gre_if.add_vpp_config()
+ gre_if.admin_up()
+ gre_if.config_ip6()
+ gre_if.generate_remote_hosts(4)
+
+ #
+ # for-each peer
+ #
+ for ii in range(1, 4):
+ route_addr = "4::%d" % ii
+
+ #
+ # Add a TEIB entry resolves the peer
+ #
+ teib = VppTeib(
+ self,
+ gre_if,
+ gre_if._remote_hosts[ii].ip6,
+ itf._remote_hosts[ii].ip6,
+ )
+ teib.add_vpp_config()
+
+ #
+ # route traffic via the peer
+ #
+ route_via_tun = VppIpRoute(
+ self,
+ route_addr,
+ 128,
+ [VppRoutePath(gre_if._remote_hosts[ii].ip6, gre_if.sw_if_index)],
+ )
+ route_via_tun.add_vpp_config()
+
+ #
+ # Send a packet stream that is routed into the tunnel
+ # - packets are GRE encapped
+ #
+ tx_e = self.create_stream_ip6(
+ self.pg0, "5::5", route_addr, dscp=2, ecn=1
+ )
+ rx = self.send_and_expect(self.pg0, tx_e, itf)
+ self.verify_tunneled_6o6(
+ self.pg0, rx, tx_e, itf.local_ip6, itf._remote_hosts[ii].ip6, dscp=2
+ )
+ tx_i = self.create_tunnel_stream_6o6(
+ self.pg0,
+ itf._remote_hosts[ii].ip6,
+ itf.local_ip6,
+ self.pg0.local_ip6,
+ self.pg0.remote_ip6,
+ )
+ rx = self.send_and_expect(self.pg0, tx_i, self.pg0)
+ self.verify_decapped_6o6(self.pg0, rx, tx_i)
+
+ #
+ # delete and re-add the TEIB
+ #
+ teib.remove_vpp_config()
+ self.send_and_assert_no_replies(self.pg0, tx_e)
+
+ teib.add_vpp_config()
+ rx = self.send_and_expect(self.pg0, tx_e, itf)
+ self.verify_tunneled_6o6(
+ self.pg0, rx, tx_e, itf.local_ip6, itf._remote_hosts[ii].ip6, dscp=2
+ )
+ rx = self.send_and_expect(self.pg0, tx_i, self.pg0)
+ self.verify_decapped_6o6(self.pg0, rx, tx_i)
+
+ gre_if.admin_down()
+ gre_if.unconfig_ip4()
+ itf.unconfig_ip6()
+ self.pg0.unconfig_ip6()
+
-if __name__ == '__main__':
+if __name__ == "__main__":
unittest.main(testRunner=VppTestRunner)
Code Review / vpp.git / blobdiff