diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/test_nat.py | 62 |
1 files changed, 60 insertions, 2 deletions
diff --git a/test/test_nat.py b/test/test_nat.py index 35e89e39b9c..4ae2850678d 100644 --- a/test/test_nat.py +++ b/test/test_nat.py @@ -9,7 +9,8 @@ import random from framework import VppTestCase, VppTestRunner, running_extended_tests 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 +from scapy.layers.inet6 import IPv6, ICMPv6EchoRequest, ICMPv6EchoReply, \ + ICMPv6ND_NS, ICMPv6ND_NA, ICMPv6NDOptDstLLAddr from scapy.layers.inet6 import ICMPv6DestUnreach, IPerror6, IPv6ExtHdrFragment from scapy.layers.l2 import Ether, ARP, GRE from scapy.data import IP_PROTOS @@ -5189,7 +5190,7 @@ class TestNAT64(MethodHolder): cls.ipfix_src_port = 4739 cls.ipfix_domain_id = 1 - cls.create_pg_interfaces(range(5)) + cls.create_pg_interfaces(range(6)) cls.ip6_interfaces = list(cls.pg_interfaces[0:1]) cls.ip6_interfaces.append(cls.pg_interfaces[2]) cls.ip4_interfaces = list(cls.pg_interfaces[1:2]) @@ -5216,10 +5217,67 @@ class TestNAT64(MethodHolder): cls.pg3.config_ip6() cls.pg3.configure_ipv6_neighbors() + cls.pg5.admin_up() + cls.pg5.config_ip6() + except Exception: super(TestNAT64, cls).tearDownClass() raise + def test_nat64_inside_interface_handles_neighbor_advertisement(self): + """ NAT64 inside interface handles Neighbor Advertisement """ + + self.vapi.nat64_add_del_interface(self.pg5.sw_if_index) + + # Try to send ping + ping = (Ether(dst=self.pg5.local_mac, src=self.pg5.remote_mac) / + IPv6(src=self.pg5.remote_ip6, dst=self.pg5.local_ip6) / + ICMPv6EchoRequest()) + pkts = [ping] + self.pg5.add_stream(pkts) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + # Wait for Neighbor Solicitation + capture = self.pg5.get_capture(len(pkts)) + self.assertEqual(1, len(capture)) + packet = capture[0] + try: + self.assertEqual(packet[IPv6].src, self.pg5.local_ip6) + self.assertTrue(packet.haslayer(ICMPv6ND_NS)) + tgt = packet[ICMPv6ND_NS].tgt + except: + self.logger.error(ppp("Unexpected or invalid packet:", packet)) + raise + + # Send Neighbor Advertisement + p = (Ether(dst=self.pg5.local_mac, src=self.pg5.remote_mac) / + IPv6(src=self.pg5.remote_ip6, dst=self.pg5.local_ip6) / + ICMPv6ND_NA(tgt=tgt) / + ICMPv6NDOptDstLLAddr(lladdr=self.pg5.remote_mac)) + pkts = [p] + self.pg5.add_stream(pkts) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + # Try to send ping again + pkts = [ping] + self.pg5.add_stream(pkts) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + # Wait for ping reply + capture = self.pg5.get_capture(len(pkts)) + self.assertEqual(1, len(capture)) + packet = capture[0] + try: + self.assertEqual(packet[IPv6].src, self.pg5.local_ip6) + self.assertEqual(packet[IPv6].dst, self.pg5.remote_ip6) + self.assertTrue(packet.haslayer(ICMPv6EchoReply)) + except: + self.logger.error(ppp("Unexpected or invalid packet:", packet)) + raise + def test_pool(self): """ Add/delete address to NAT64 pool """ nat_addr = socket.inet_pton(socket.AF_INET, '1.2.3.4') |