diff options
Diffstat (limited to 'test/test_nat.py')
| -rw-r--r-- | test/test_nat.py | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/test/test_nat.py b/test/test_nat.py index 37e1b1e7b75..e420baffd1d 100644 --- a/test/test_nat.py +++ b/test/test_nat.py @@ -5,6 +5,7 @@ import unittest import struct from framework import VppTestCase, VppTestRunner, running_extended_tests +from vpp_ip_route import VppIpRoute, VppRoutePath, DpoProto from scapy.layers.inet import IP, TCP, UDP, ICMP from scapy.layers.inet import IPerror, TCPerror, UDPerror, ICMPerror from scapy.layers.inet6 import IPv6, ICMPv6EchoRequest, ICMPv6EchoReply @@ -4007,5 +4008,152 @@ class TestNAT64(MethodHolder): self.logger.info(self.vapi.cli("show nat64 session table all")) self.clear_nat64() + +class TestDSlite(MethodHolder): + """ DS-Lite Test Cases """ + + @classmethod + def setUpClass(cls): + super(TestDSlite, cls).setUpClass() + + try: + cls.nat_addr = '10.0.0.3' + cls.nat_addr_n = socket.inet_pton(socket.AF_INET, cls.nat_addr) + + 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(2) + cls.pg1.configure_ipv6_neighbors() + + except Exception: + super(TestDSlite, cls).tearDownClass() + raise + + def test_dslite(self): + """ Test DS-Lite """ + self.vapi.dslite_add_del_pool_addr_range(self.nat_addr_n, + self.nat_addr_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) + + # UDP + p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / + IPv6(dst=aftr_ip6, src=self.pg1.remote_hosts[0].ip6) / + IP(dst=self.pg0.remote_ip4, src='192.168.1.1') / + 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.nat_addr) + self.assertEqual(capture[IP].dst, self.pg0.remote_ip4) + self.assertNotEqual(capture[UDP].sport, 20000) + self.assertEqual(capture[UDP].dport, 10000) + self.check_ip_checksum(capture) + out_port = capture[UDP].sport + + p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / + IP(dst=self.nat_addr, src=self.pg0.remote_ip4) / + UDP(sport=10000, dport=out_port)) + 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, aftr_ip6) + self.assertEqual(capture[IPv6].dst, self.pg1.remote_hosts[0].ip6) + self.assertEqual(capture[IP].src, self.pg0.remote_ip4) + self.assertEqual(capture[IP].dst, '192.168.1.1') + self.assertEqual(capture[UDP].sport, 10000) + self.assertEqual(capture[UDP].dport, 20000) + self.check_ip_checksum(capture) + + # TCP + p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / + IPv6(dst=aftr_ip6, src=self.pg1.remote_hosts[1].ip6) / + IP(dst=self.pg0.remote_ip4, src='192.168.1.1') / + TCP(sport=20001, dport=10001)) + 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.nat_addr) + self.assertEqual(capture[IP].dst, self.pg0.remote_ip4) + self.assertNotEqual(capture[TCP].sport, 20001) + self.assertEqual(capture[TCP].dport, 10001) + self.check_ip_checksum(capture) + self.check_tcp_checksum(capture) + out_port = capture[TCP].sport + + p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / + IP(dst=self.nat_addr, src=self.pg0.remote_ip4) / + TCP(sport=10001, dport=out_port)) + 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, aftr_ip6) + self.assertEqual(capture[IPv6].dst, self.pg1.remote_hosts[1].ip6) + self.assertEqual(capture[IP].src, self.pg0.remote_ip4) + self.assertEqual(capture[IP].dst, '192.168.1.1') + self.assertEqual(capture[TCP].sport, 10001) + self.assertEqual(capture[TCP].dport, 20001) + self.check_ip_checksum(capture) + self.check_tcp_checksum(capture) + + # ICMP + p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / + IPv6(dst=aftr_ip6, src=self.pg1.remote_hosts[1].ip6) / + IP(dst=self.pg0.remote_ip4, src='192.168.1.1') / + ICMP(id=4000, type='echo-request')) + 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.nat_addr) + self.assertEqual(capture[IP].dst, self.pg0.remote_ip4) + self.assertNotEqual(capture[ICMP].id, 4000) + self.check_ip_checksum(capture) + self.check_icmp_checksum(capture) + out_id = capture[ICMP].id + + p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / + IP(dst=self.nat_addr, src=self.pg0.remote_ip4) / + ICMP(id=out_id, type='echo-reply')) + 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, aftr_ip6) + self.assertEqual(capture[IPv6].dst, self.pg1.remote_hosts[1].ip6) + self.assertEqual(capture[IP].src, self.pg0.remote_ip4) + self.assertEqual(capture[IP].dst, '192.168.1.1') + self.assertEqual(capture[ICMP].id, 4000) + self.check_ip_checksum(capture) + self.check_icmp_checksum(capture) + + def tearDown(self): + super(TestDSlite, self).tearDown() + if not self.vpp_dead: + self.logger.info(self.vapi.cli("show dslite pool")) + self.logger.info( + self.vapi.cli("show dslite aftr-tunnel-endpoint-address")) + self.logger.info(self.vapi.cli("show dslite sessions")) + if __name__ == '__main__': unittest.main(testRunner=VppTestRunner) |