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#!/usr/bin/env python3
""" 6RD RFC5969 functional tests """
import unittest
from scapy.layers.inet import IP, UDP, Ether
from scapy.layers.inet6 import IPv6
from scapy.packet import Raw
from framework import VppTestCase, VppTestRunner
from vpp_ip import DpoProto
from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpTable, FibPathProto
from socket import AF_INET, AF_INET6, inet_pton
""" Test6rd is a subclass of VPPTestCase classes.
6RD tests.
"""
class Test6RD(VppTestCase):
""" 6RD Test Case """
@classmethod
def setUpClass(cls):
super(Test6RD, cls).setUpClass()
cls.create_pg_interfaces(range(4))
cls.interfaces = list(cls.pg_interfaces)
@classmethod
def tearDownClass(cls):
super(Test6RD, cls).tearDownClass()
def setUp(self):
super(Test6RD, self).setUp()
t4 = VppIpTable(self, 10)
t6 = VppIpTable(self, 20, True)
t4.add_vpp_config()
t6.add_vpp_config()
for n in range(4):
i = self.pg_interfaces[n]
i.admin_up()
if (n > 1):
i.set_table_ip4(10)
i.set_table_ip6(20)
i.config_ip4()
i.config_ip6()
i.disable_ipv6_ra()
i.resolve_arp()
i.resolve_ndp()
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.admin_down()
super(Test6RD, self).tearDown()
def validate_6in4(self, rx, expected):
if IP not in rx:
self.fail()
if IPv6 not in rx:
self.fail()
self.assertEqual(rx[IP].src, expected[IP].src)
self.assertEqual(rx[IP].dst, expected[IP].dst)
self.assertEqual(rx[IP].proto, expected[IP].proto)
self.assertEqual(rx[IPv6].src, expected[IPv6].src)
self.assertEqual(rx[IPv6].dst, expected[IPv6].dst)
def validate_4in6(self, rx, expected):
if IPv6 not in rx:
self.fail()
if IP in rx:
self.fail()
self.assertEqual(rx[IPv6].src, expected[IPv6].src)
self.assertEqual(rx[IPv6].dst, expected[IPv6].dst)
self.assertEqual(rx[IPv6].nh, expected[IPv6].nh)
def payload(self, len):
return 'x' * len
def test_6rd_ip6_to_ip4(self):
""" ip6 -> ip4 (encap) 6rd test """
p_ether = Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
p_ip6 = IPv6(src="1::1", dst="2002:AC10:0202::1", nh='UDP')
rv = self.vapi.ipip_6rd_add_tunnel(ip6_table_id=0,
ip4_table_id=0,
ip6_prefix='2002::/16',
ip4_prefix='0.0.0.0/0',
ip4_src=self.pg0.local_ip4,
security_check=True)
self.tunnel_index = rv.sw_if_index
self.vapi.cli("show ip6 fib")
p_payload = UDP(sport=1234, dport=1234)
p = (p_ether / p_ip6 / p_payload)
p_reply = (IP(src=
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