| # |
| # 6RD RFC5969 functional tests |
| # |
| |
| import unittest |
| from scapy.layers.inet import IP, UDP, ICMP |
| from scapy.layers.inet6 import IPv6 |
| from scapy.layers.l2 import Ether, GRE |
| from scapy.packet import Raw |
| |
| from framework import VppTestCase |
| from vpp_ip_route import VppIpRoute, VppRoutePath, DpoProto |
| from util import ppp |
| from ipaddress import * |
| |
| """ Test6rd is a subclass of VPPTestCase classes. |
| |
| 6RD tests. |
| |
| """ |
| |
| |
| class Test6RD(VppTestCase): |
| """ 6RD Test Case """ |
| |
| @classmethod |
| def setUpClass(cls): |
| super(Test6RD, cls).setUpClass() |
| try: |
| cls.create_pg_interfaces(range(2)) |
| cls.interfaces = list(cls.pg_interfaces) |
| except Exception: |
| super(Test6RD, cls).tearDownClass() |
| raise |
| |
| def setUp(cls): |
| super(Test6RD, cls).setUp() |
| try: |
| for i in cls.interfaces: |
| i.admin_up() |
| i.config_ip4() |
| i.config_ip6() |
| i.disable_ipv6_ra() |
| i.resolve_arp() |
| i.resolve_ndp() |
| except Exception: |
| super(Test6RD, cls).tearDown() |
| raise |
| |
| def tearDown(self): |
| super(Test6RD, self).tearDown() |
| if not self.vpp_dead: |
| self.vapi.cli("show hardware") |
| for i in self.pg_interfaces: |
| i.unconfig_ip4() |
| i.unconfig_ip6() |
| i.admin_down() |
| if type(self.tunnel_index) is list: |
| for sw_if_index in self.tunnel_index: |
| self.vapi.sixrd_del_tunnel(sw_if_index) |
| else: |
| self.vapi.sixrd_del_tunnel(self.tunnel_index) |
| self.vapi.cli("show error") |
| |
| 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.assertTrue(rx[IPv6].src == expected[IPv6].src) |
| self.assertTrue(rx[IPv6].dst == expected[IPv6].dst) |
| self.assertTrue(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.sixrd_add_tunnel( |
| 0, str(ip_address('2002::').packed), 16, |
| str(ip_address('0.0.0.0').packed), 0, |
| str(ip_address(self.pg0.local_ip4).packed), 0, True) |
| |
| self.assertEqual(rv.retval, 0) |
| 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=self.pg0.local_ip4, dst=self.pg1.remote_ip4, |
| proto='ipv6') / p_ip6) |
| |
| rx = self.send_and_expect(self.pg0, p*10, self.pg1) |
| for p in rx: |
| self.validate_6in4(p, p_reply) |
| |
| # MTU tests (default is 1480) |
| plen = 1481 - 40 - 8 |
| p_ip6 = IPv6(src="1::1", dst="2002:AC10:0202::1") |
| p_payload = UDP(sport=1234, dport=1234) / Raw(self.payload(plen)) |
| p = (p_ether / p_ip6 / p_payload) |
| |
| p_reply = (IP(src=self.pg0.local_ip4, dst=self.pg1.remote_ip4, |
| proto='ipv6') / p_ip6) |
| |
| rx = self.send_and_assert_no_replies(self.pg0, p*10) |
| |
| def test_6rd_ip4_to_ip6(self): |
| """ ip4 -> ip6 (decap) 6rd test """ |
| |
| rv = self.vapi.sixrd_add_tunnel( |
| 0, str(ip_address('2002::').packed), |
| 16, str(ip_address('0.0.0.0').packed), |
| 0, str(ip_address(self.pg0.local_ip4).packed), 0, True) |
| self.assertEqual(rv.retval, 0) |
| self.tunnel_index = rv.sw_if_index |
| self.vapi.cli("show ip6 fib") |
| p_ip6 = (IPv6(src="2002:AC10:0202::1", dst=self.pg1.remote_ip6) / |
| UDP(sport=1234, dport=1234)) |
| |
| p = (Ether(src=self.pg0.remote_mac, |
| dst=self.pg0.local_mac) / |
| IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4) / |
| p_ip6) |
| |
| p_reply = p_ip6 |
| |
| rx = self.send_and_expect(self.pg0, p*10, self.pg1) |
| for p in rx: |
| self.validate_4in6(p, p_reply) |
| |
| def test_6rd_ip4_to_ip6_multiple(self): |
| """ ip4 -> ip6 (decap) 6rd test """ |
| |
| self.tunnel_index = [] |
| rv = self.vapi.sixrd_add_tunnel( |
| 0, str(ip_address('2002::').packed), |
| 16, str(ip_address('0.0.0.0').packed), |
| 0, str(ip_address(self.pg0.local_ip4).packed), 0, True) |
| self.assertEqual(rv.retval, 0) |
| self.tunnel_index.append(rv.sw_if_index) |
| rv = self.vapi.sixrd_add_tunnel( |
| 0, str(ip_address('2003::').packed), |
| 16, str(ip_address('0.0.0.0').packed), |
| 0, str(ip_address(self.pg1.local_ip4).packed), 0, True) |
| self.assertEqual(rv.retval, 0) |
| |
| self.tunnel_index.append(rv.sw_if_index) |
| |
| self.vapi.cli("show ip6 fib") |
| p_ether = Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) |
| p_ip4 = IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4) |
| p_ip6_1 = (IPv6(src="2002:AC10:0202::1", dst=self.pg1.remote_ip6) / |
| UDP(sport=1234, dport=1234)) |
| p_ip6_2 = (IPv6(src="2003:AC10:0202::1", dst=self.pg1.remote_ip6) / |
| UDP(sport=1234, dport=1234)) |
| |
| p = (p_ether / p_ip4 / p_ip6_1) |
| rx = self.send_and_expect(self.pg0, p*10, self.pg1) |
| for p in rx: |
| self.validate_4in6(p, p_ip6_1) |
| |
| p = (p_ether / p_ip4 / p_ip6_2) |
| rx = self.send_and_expect(self.pg0, p*10, self.pg1) |
| for p in rx: |
| self.validate_4in6(p, p_ip6_2) |
| |
| def test_6rd_ip4_to_ip6_suffix(self): |
| """ ip4 -> ip6 (decap) 6rd test """ |
| |
| rv = self.vapi.sixrd_add_tunnel( |
| 0, str(ip_address('2002::').packed), 16, |
| str(ip_address('172.0.0.0').packed), 8, |
| str(ip_address(self.pg0.local_ip4).packed), 0, True) |
| self.assertEqual(rv.retval, 0) |
| |
| self.tunnel_index = rv.sw_if_index |
| |
| self.vapi.cli("show ip6 fib") |
| p_ether = Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) |
| p_ip4 = IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4) |
| p_ip6 = (IPv6(src="2002:1002:0200::1", dst=self.pg1.remote_ip6) / |
| UDP(sport=1234, dport=1234)) |
| |
| p = (p_ether / p_ip4 / p_ip6) |
| rx = self.send_and_expect(self.pg0, p*10, self.pg1) |
| for p in rx: |
| self.validate_4in6(p, p_ip6) |
| |
| def test_6rd_ip4_to_ip6_sec_check(self): |
| """ ip4 -> ip6 (decap) security check 6rd test """ |
| |
| rv = self.vapi.sixrd_add_tunnel( |
| 0, str(ip_address('2002::').packed), |
| 16, str(ip_address('0.0.0.0').packed), |
| 0, str(ip_address(self.pg0.local_ip4).packed), 0, True) |
| self.assertEqual(rv.retval, 0) |
| self.tunnel_index = rv.sw_if_index |
| self.vapi.cli("show ip6 fib") |
| p_ip6 = (IPv6(src="2002:AC10:0202::1", dst=self.pg1.remote_ip6) / |
| UDP(sport=1234, dport=1234)) |
| p_ip6_fail = (IPv6(src="2002:DEAD:0202::1", dst=self.pg1.remote_ip6) / |
| UDP(sport=1234, dport=1234)) |
| |
| p = (Ether(src=self.pg0.remote_mac, |
| dst=self.pg0.local_mac) / |
| IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4) / |
| p_ip6) |
| |
| p_reply = p_ip6 |
| |
| rx = self.send_and_expect(self.pg0, p*10, self.pg1) |
| for p in rx: |
| self.validate_4in6(p, p_reply) |
| |
| p = (Ether(src=self.pg0.remote_mac, |
| dst=self.pg0.local_mac) / |
| IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4) / |
| p_ip6_fail) |
| rx = self.send_and_assert_no_replies(self.pg0, p*10) |
| |
| def test_6rd_bgp_tunnel(self): |
| """ 6rd BGP tunnel """ |
| |
| rv = self.vapi.sixrd_add_tunnel( |
| 0, str(ip_address('2002::').packed), |
| 16, str(ip_address('0.0.0.0').packed), |
| 0, str(ip_address(self.pg0.local_ip4).packed), 0, False) |
| self.assertEqual(rv.retval, 0) |
| self.tunnel_index = rv.sw_if_index |
| |
| default_route = VppIpRoute( |
| self, "DEAD::", 16, [VppRoutePath("2002:0808:0808::", |
| self.tunnel_index, |
| proto=DpoProto.DPO_PROTO_IP6)], |
| is_ip6=1) |
| default_route.add_vpp_config() |
| |
| ip4_route = VppIpRoute(self, "8.0.0.0", 8, |
| [VppRoutePath(self.pg1.remote_ip4, 0xFFFFFFFF)]) |
| ip4_route.add_vpp_config() |
| |
| # Via recursive route 6 -> 4 |
| p = (Ether(src=self.pg0.remote_mac, |
| dst=self.pg0.local_mac) / |
| IPv6(src="1::1", dst="DEAD:BEEF::1") / |
| UDP(sport=1234, dport=1234)) |
| |
| p_reply = (IP(src=self.pg0.local_ip4, dst="8.8.8.8", |
| proto='ipv6') / |
| IPv6(src='1::1', dst='DEAD:BEEF::1', nh='UDP')) |
| |
| rx = self.send_and_expect(self.pg0, p*10, self.pg1) |
| for p in rx: |
| self.validate_6in4(p, p_reply) |
| |
| # Via recursive route 4 -> 6 (Security check must be disabled) |
| p_ip6 = (IPv6(src="DEAD:BEEF::1", dst=self.pg1.remote_ip6) / |
| UDP(sport=1234, dport=1234)) |
| p = (Ether(src=self.pg0.remote_mac, |
| dst=self.pg0.local_mac) / |
| IP(src="8.8.8.8", dst=self.pg0.local_ip4) / |
| p_ip6) |
| |
| p_reply = p_ip6 |
| |
| rx = self.send_and_expect(self.pg0, p*10, self.pg1) |
| for p in rx: |
| self.validate_4in6(p, p_reply) |
| |
| |
| if __name__ == '__main__': |
| unittest.main(testRunner=VppTestRunner) |