diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/test_snat.py | 247 |
1 files changed, 246 insertions, 1 deletions
diff --git a/test/test_snat.py b/test/test_snat.py index f876c5f0..df81fb56 100644 --- a/test/test_snat.py +++ b/test/test_snat.py @@ -1932,7 +1932,7 @@ class TestSNAT(MethodHolder): self.logger.error(ppp("Unexpected or invalid packet:", packet)) raise - def test_hairpinning_unknown_proto(self): + def test_hairpinning_static_unknown_proto(self): """ 1:1 NAT translate packet with unknown protocol - hairpinning """ host = self.pg0.remote_hosts[0] @@ -1987,6 +1987,127 @@ class TestSNAT(MethodHolder): self.logger.error(ppp("Unexpected or invalid packet:", packet)) raise + def test_unknown_proto(self): + """ SNAT translate packet with unknown protocol """ + self.snat_add_address(self.snat_addr) + 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) / + TCP(sport=self.tcp_port_in, dport=20)) + self.pg0.add_stream(p) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + p = self.pg1.get_capture(1) + + 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.pg3.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, self.snat_addr) + 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=self.snat_addr) / + GRE() / + IP(src=self.pg3.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 test_hairpinning_unknown_proto(self): + """ SNAT translate packet with unknown protocol - hairpinning """ + host = self.pg0.remote_hosts[0] + server = self.pg0.remote_hosts[1] + host_in_port = 1234 + host_out_port = 0 + server_in_port = 5678 + server_out_port = 8765 + server_nat_ip = "10.0.0.11" + + self.snat_add_address(self.snat_addr) + 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) + + # add static mapping for server + self.snat_add_static_mapping(server.ip4, server_nat_ip) + + # host to server + p = (Ether(src=host.mac, dst=self.pg0.local_mac) / + IP(src=host.ip4, dst=server_nat_ip) / + TCP(sport=host_in_port, dport=server_out_port)) + self.pg0.add_stream(p) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + capture = self.pg0.get_capture(1) + + p = (Ether(dst=self.pg0.local_mac, src=host.mac) / + IP(src=host.ip4, dst=server_nat_ip) / + GRE() / + IP(src=self.pg2.remote_ip4, dst=self.pg3.remote_ip4) / + TCP(sport=1234, dport=1234)) + self.pg0.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.snat_addr) + self.assertEqual(packet[IP].dst, server.ip4) + self.assertTrue(packet.haslayer(GRE)) + self.check_ip_checksum(packet) + except: + self.logger.error(ppp("Unexpected or invalid packet:", packet)) + raise + + # server to host + p = (Ether(dst=self.pg0.local_mac, src=server.mac) / + IP(src=server.ip4, dst=self.snat_addr) / + GRE() / + IP(src=self.pg3.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.pg0.get_capture(1) + packet = p[0] + try: + self.assertEqual(packet[IP].src, server_nat_ip) + self.assertEqual(packet[IP].dst, host.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: @@ -3230,6 +3351,130 @@ class TestNAT64(MethodHolder): vrf1_pref64_len) self.verify_capture_in_ip6(capture, dst_ip, self.pg2.remote_ip6) + def _test_unknown_proto(self): + """ NAT64 translate packet with unknown protocol """ + + self.vapi.nat64_add_del_pool_addr_range(self.nat_addr_n, + self.nat_addr_n) + self.vapi.nat64_add_del_interface(self.pg0.sw_if_index) + self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_inside=0) + remote_ip6 = self.compose_ip6(self.pg1.remote_ip4, '64:ff9b::', 96) + + # in2out + p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / + IPv6(src=self.pg0.remote_ip6, dst=remote_ip6) / + TCP(sport=self.tcp_port_in, dport=20)) + self.pg0.add_stream(p) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + p = self.pg1.get_capture(1) + + p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / + IPv6(src=self.pg0.remote_ip6, dst=remote_ip6) / + GRE() / + IP(src=self.pg2.local_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, self.nat_addr) + 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=self.nat_addr) / + GRE() / + IP(src=self.pg2.remote_ip4, dst=self.pg2.local_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[IPv6].src, remote_ip6) + self.assertEqual(packet[IPv6].dst, self.pgi0.remote_ip6) + self.assertTrue(packet.haslayer(GRE)) + except: + self.logger.error(ppp("Unexpected or invalid packet:", packet)) + raise + + def _test_hairpinning_unknown_proto(self): + """ NAT64 translate packet with unknown protocol - hairpinning """ + + client = self.pg0.remote_hosts[0] + server = self.pg0.remote_hosts[1] + server_tcp_in_port = 22 + server_tcp_out_port = 4022 + client_tcp_in_port = 1234 + client_udp_in_port = 1235 + nat_addr_ip6 = self.compose_ip6(self.nat_addr, '64:ff9b::', 96) + + self.vapi.nat64_add_del_pool_addr_range(self.nat_addr_n, + self.nat_addr_n) + self.vapi.nat64_add_del_interface(self.pg0.sw_if_index) + self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_inside=0) + + self.vapi.nat64_add_del_static_bib(server.ip6n, + self.nat_addr_n, + server_tcp_in_port, + server_tcp_out_port, + IP_PROTOS.tcp) + + # client to server + p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / + IPv6(src=client.ip6, dst=nat_addr_ip6) / + TCP(sport=client_tcp_in_port, dport=server_tcp_out_port)) + self.pg0.add_stream(p) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + p = self.pg0.get_capture(1) + + p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / + IPv6(src=client.ip6, dst=nat_addr_ip6) / + GRE() / + IP(src=self.pg2.local_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.pg0.get_capture(1) + packet = p[0] + try: + self.assertEqual(packet[IPv6].src, nat_addr_ip6) + self.assertEqual(packet[IPv6].dst, server.ip6) + self.assertTrue(packet.haslayer(GRE)) + except: + self.logger.error(ppp("Unexpected or invalid packet:", packet)) + raise + + # server to client + p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / + IPv6(src=server.ip6, dst=nat_addr_ip6) / + GRE() / + IP(src=self.pg2.remote_ip4, dst=self.pg2.local_ip4) / + TCP(sport=1234, dport=1234)) + self.pg0.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[IPv6].src, nat_addr_ip6) + self.assertEqual(packet[IPv6].dst, client.ip6) + self.assertTrue(packet.haslayer(GRE)) + except: + self.logger.error(ppp("Unexpected or invalid packet:", packet)) + raise + def nat64_get_ses_num(self): """ Return number of active NAT64 sessions. |