diff options
Diffstat (limited to 'test/test_nat.py')
| -rw-r--r-- | test/test_nat.py | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/test/test_nat.py b/test/test_nat.py index 7194704046d..5f6334ebb39 100644 --- a/test/test_nat.py +++ b/test/test_nat.py @@ -5608,5 +5608,109 @@ class TestDSlite(MethodHolder): self.vapi.cli("show dslite aftr-tunnel-endpoint-address")) self.logger.info(self.vapi.cli("show dslite sessions")) + +class TestDSliteCE(MethodHolder): + """ DS-Lite CE Test Cases """ + + @classmethod + def setUpConstants(cls): + super(TestDSliteCE, cls).setUpConstants() + cls.vpp_cmdline.extend(["nat", "{", "dslite ce", "}"]) + + @classmethod + def setUpClass(cls): + super(TestDSliteCE, cls).setUpClass() + + try: + cls.create_pg_interfaces(range(2)) + cls.pg0.admin_up() + cls.pg0.config_ip4() + cls.pg0.resolve_arp() + cls.pg1.admin_up() + cls.pg1.config_ip6() + cls.pg1.generate_remote_hosts(1) + cls.pg1.configure_ipv6_neighbors() + + except Exception: + super(TestDSliteCE, cls).tearDownClass() + raise + + def test_dslite_ce(self): + """ Test DS-Lite CE """ + + b4_ip4 = '192.0.0.2' + b4_ip4_n = socket.inet_pton(socket.AF_INET, b4_ip4) + b4_ip6 = '2001:db8:62aa::375e:f4c1:1' + b4_ip6_n = socket.inet_pton(socket.AF_INET6, b4_ip6) + self.vapi.dslite_set_b4_addr(b4_ip6_n, b4_ip4_n) + + aftr_ip4 = '192.0.0.1' + aftr_ip4_n = socket.inet_pton(socket.AF_INET, aftr_ip4) + aftr_ip6 = '2001:db8:85a3::8a2e:370:1' + aftr_ip6_n = socket.inet_pton(socket.AF_INET6, aftr_ip6) + self.vapi.dslite_set_aftr_addr(aftr_ip6_n, aftr_ip4_n) + + self.vapi.ip_add_del_route(dst_address=aftr_ip6_n, + dst_address_length=128, + next_hop_address=self.pg1.remote_ip6n, + next_hop_sw_if_index=self.pg1.sw_if_index, + is_ipv6=1) + + # UDP encapsulation + p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / + IP(dst=self.pg1.remote_ip4, src=self.pg0.remote_ip4) / + UDP(sport=10000, dport=20000)) + self.pg0.add_stream(p) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + capture = self.pg1.get_capture(1) + capture = capture[0] + self.assertEqual(capture[IPv6].src, b4_ip6) + self.assertEqual(capture[IPv6].dst, aftr_ip6) + self.assertEqual(capture[IP].src, self.pg0.remote_ip4) + self.assertEqual(capture[IP].dst, self.pg1.remote_ip4) + self.assertEqual(capture[UDP].sport, 10000) + self.assertEqual(capture[UDP].dport, 20000) + self.check_ip_checksum(capture) + + # UDP decapsulation + p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / + IPv6(dst=b4_ip6, src=aftr_ip6) / + IP(dst=self.pg0.remote_ip4, src=self.pg1.remote_ip4) / + UDP(sport=20000, dport=10000)) + self.pg1.add_stream(p) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + capture = self.pg0.get_capture(1) + capture = capture[0] + self.assertFalse(capture.haslayer(IPv6)) + self.assertEqual(capture[IP].src, self.pg1.remote_ip4) + self.assertEqual(capture[IP].dst, self.pg0.remote_ip4) + self.assertEqual(capture[UDP].sport, 20000) + self.assertEqual(capture[UDP].dport, 10000) + self.check_ip_checksum(capture) + + # ping DS-Lite B4 tunnel endpoint address + p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / + IPv6(src=self.pg1.remote_hosts[0].ip6, dst=b4_ip6) / + ICMPv6EchoRequest()) + self.pg1.add_stream(p) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + capture = self.pg1.get_capture(1) + self.assertEqual(1, len(capture)) + capture = capture[0] + self.assertEqual(capture[IPv6].src, b4_ip6) + self.assertEqual(capture[IPv6].dst, self.pg1.remote_hosts[0].ip6) + self.assertTrue(capture.haslayer(ICMPv6EchoReply)) + + def tearDown(self): + super(TestDSliteCE, self).tearDown() + if not self.vpp_dead: + self.logger.info( + self.vapi.cli("show dslite aftr-tunnel-endpoint-address")) + self.logger.info( + self.vapi.cli("show dslite b4-tunnel-endpoint-address")) + if __name__ == '__main__': unittest.main(testRunner=VppTestRunner) |