diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/test_snat.py | 50 |
1 files changed, 49 insertions, 1 deletions
diff --git a/test/test_snat.py b/test/test_snat.py index ee689e6ac3e..e148fbae56c 100644 --- a/test/test_snat.py +++ b/test/test_snat.py @@ -9,7 +9,7 @@ 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 ICMPv6DestUnreach, IPerror6 -from scapy.layers.l2 import Ether, ARP +from scapy.layers.l2 import Ether, ARP, GRE from scapy.data import IP_PROTOS from scapy.packet import bind_layers from util import ppp @@ -1835,6 +1835,54 @@ class TestSNAT(MethodHolder): capture = self.pg8.get_capture(len(pkts)) self.verify_capture_out(capture) + def test_static_unknown_proto(self): + """ 1:1 NAT translate packet with unknown protocol """ + nat_ip = "10.0.0.10" + self.snat_add_static_mapping(self.pg0.remote_ip4, nat_ip) + self.vapi.snat_interface_add_del_feature(self.pg0.sw_if_index) + self.vapi.snat_interface_add_del_feature(self.pg1.sw_if_index, + is_inside=0) + + # in2out + p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / + IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) / + GRE() / + IP(src=self.pg2.remote_ip4, dst=self.pg2.remote_ip4) / + TCP(sport=1234, dport=1234)) + self.pg0.add_stream(p) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + p = self.pg1.get_capture(1) + packet = p[0] + try: + self.assertEqual(packet[IP].src, nat_ip) + self.assertEqual(packet[IP].dst, self.pg1.remote_ip4) + self.assertTrue(packet.haslayer(GRE)) + self.check_ip_checksum(packet) + except: + self.logger.error(ppp("Unexpected or invalid packet:", packet)) + raise + + # out2in + p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / + IP(src=self.pg1.remote_ip4, dst=nat_ip) / + GRE() / + IP(src=self.pg2.remote_ip4, dst=self.pg2.remote_ip4) / + TCP(sport=1234, dport=1234)) + self.pg1.add_stream(p) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + p = self.pg0.get_capture(1) + packet = p[0] + try: + self.assertEqual(packet[IP].src, self.pg1.remote_ip4) + self.assertEqual(packet[IP].dst, self.pg0.remote_ip4) + self.assertTrue(packet.haslayer(GRE)) + self.check_ip_checksum(packet) + except: + self.logger.error(ppp("Unexpected or invalid packet:", packet)) + raise + def tearDown(self): super(TestSNAT, self).tearDown() if not self.vpp_dead: |