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Diffstat (limited to 'test/test_map_br.py')
| -rw-r--r-- | test/test_map_br.py | 694 |
1 files changed, 694 insertions, 0 deletions
diff --git a/test/test_map_br.py b/test/test_map_br.py new file mode 100644 index 00000000000..3602ddd2e31 --- /dev/null +++ b/test/test_map_br.py @@ -0,0 +1,694 @@ +#!/usr/bin/env python3 + +import ipaddress +import unittest + +from framework import VppTestCase, VppTestRunner +from vpp_ip import DpoProto +from vpp_ip_route import VppIpRoute, VppRoutePath +from util import fragment_rfc791, fragment_rfc8200 + +import scapy.compat +from scapy.layers.l2 import Ether +from scapy.packet import Raw +from scapy.layers.inet import IP, UDP, ICMP, TCP, IPerror, UDPerror +from scapy.layers.inet6 import IPv6, ICMPv6TimeExceeded, ICMPv6PacketTooBig +from scapy.layers.inet6 import ICMPv6EchoRequest, ICMPv6EchoReply, IPerror6 + + +class TestMAPBR(VppTestCase): + """ MAP-T Test Cases """ + + @classmethod + def setUpClass(cls): + super(TestMAPBR, cls).setUpClass() + + @classmethod + def tearDownClass(cls): + super(TestMAPBR, cls).tearDownClass() + + def setUp(self): + super(TestMAPBR, self).setUp() + + # + # Create 2 pg interfaces. + # pg0 is IPv4 + # pg1 is IPv6 + # + self.create_pg_interfaces(range(2)) + + self.pg0.admin_up() + self.pg0.config_ip4() + self.pg1.generate_remote_hosts(20) + self.pg1.configure_ipv4_neighbors() + self.pg0.resolve_arp() + + self.pg1.admin_up() + self.pg1.config_ip6() + self.pg1.generate_remote_hosts(20) + self.pg1.configure_ipv6_neighbors() + + # + # BR configuration parameters used for all test. + # + self.ip4_prefix = '198.18.0.0/24' + self.ip6_prefix = '2001:db8:f0::/48' + self.ip6_src = '2001:db8:ffff:ff00::/64' + self.ea_bits_len = 12 + self.psid_offset = 6 + self.psid_length = 4 + self.mtu = 1500 + self.tag = 'MAP-T BR' + + self.ipv4_internet_address = self.pg0.remote_ip4 + self.ipv4_map_address = "198.18.0.12" + self.ipv4_udp_or_tcp_internet_port = 65000 + self.ipv4_udp_or_tcp_map_port = 16606 + + self.ipv6_cpe_address = "2001:db8:f0:c30:0:c612:c:3" # 198.18.0.12 + self.ipv6_spoof_address = "2001:db8:f0:c30:0:c612:1c:3" # 198.18.0.28 + self.ipv6_spoof_prefix = "2001:db8:f0:c30:0:a00:c:3" # 10.0.0.12 + self.ipv6_spoof_psid = "2001:db8:f0:c30:0:c612:c:4" # 4 + self.ipv6_spoof_subnet = "2001:db8:f1:c30:0:c612:c:3" # f1 + + self.ipv6_udp_or_tcp_internet_port = 65000 + self.ipv6_udp_or_tcp_map_port = 16606 + self.ipv6_udp_or_tcp_spoof_port = 16862 + + self.ipv6_map_address = ( + "2001:db8:ffff:ff00:ac:1001:200:0") # 176.16.1.2 + self.ipv6_map_same_rule_diff_addr = ( + "2001:db8:ffff:ff00:c6:1200:1000:0") # 198.18.0.16 + self.ipv6_map_same_rule_same_addr = ( + "2001:db8:ffff:ff00:c6:1200:c00:0") # 198.18.0.12 + + self.map_br_prefix = "2001:db8:f0::" + self.map_br_prefix_len = 48 + self.psid_number = 3 + + # + # Add an IPv6 route to the MAP-BR. + # + map_route = VppIpRoute(self, + self.map_br_prefix, + self.map_br_prefix_len, + [VppRoutePath(self.pg1.remote_ip6, + self.pg1.sw_if_index)]) + map_route.add_vpp_config() + + # + # Add a MAP BR domain that maps from pg0 to pg1. + # + self.vapi.map_add_domain(ip4_prefix=self.ip4_prefix, + ip6_prefix=self.ip6_prefix, + ip6_src=self.ip6_src, + ea_bits_len=self.ea_bits_len, + psid_offset=self.psid_offset, + psid_length=self.psid_length, + mtu=self.mtu, + tag=self.tag) + + # + # Set BR parameters. + # + self.vapi.map_param_set_fragmentation(inner=1, ignore_df=0) + self.vapi.map_param_set_fragmentation(inner=0, ignore_df=0) + self.vapi.map_param_set_icmp(ip4_err_relay_src=self.pg0.local_ip4) + self.vapi.map_param_set_traffic_class(copy=1) + + # + # Enable MAP-T on interfaces. + # + self.vapi.map_if_enable_disable(is_enable=1, + sw_if_index=self.pg0.sw_if_index, + is_translation=1) + + self.vapi.map_if_enable_disable(is_enable=1, + sw_if_index=self.pg1.sw_if_index, + is_translation=1) + + self.vapi.map_if_enable_disable(is_enable=1, + sw_if_index=self.pg1.sw_if_index, + is_translation=1) + + def tearDown(self): + super(TestMAPBR, self).tearDown() + for i in self.pg_interfaces: + i.unconfig_ip4() + i.unconfig_ip6() + i.admin_down() + + def v4_address_check(self, pkt): + self.assertEqual(pkt[IP].src, self.ipv4_map_address) + self.assertEqual(pkt[IP].dst, self.ipv4_internet_address) + + def v4_port_check(self, pkt, proto): + self.assertEqual(pkt[proto].sport, self.ipv4_udp_or_tcp_map_port) + self.assertEqual(pkt[proto].dport, self.ipv4_udp_or_tcp_internet_port) + + def v6_address_check(self, pkt): + self.assertEqual(pkt[IPv6].src, self.ipv6_map_address) + self.assertEqual(pkt[IPv6].dst, self.ipv6_cpe_address) + + def v6_port_check(self, pkt, proto): + self.assertEqual(pkt[proto].sport, self.ipv6_udp_or_tcp_internet_port) + self.assertEqual(pkt[proto].dport, self.ipv6_udp_or_tcp_map_port) + + # + # Normal translation of UDP packets v4 -> v6 direction + # Send 128 frame size packet for IPv4/UDP. + # Received packet should be translated into IPv6 packet with no + # fragment header. + # + + def test_map_t_udp_ip4_to_ip6(self): + """ MAP-T UDP IPv4 -> IPv6 """ + + eth = Ether(src=self.pg0.remote_mac, + dst=self.pg0.local_mac) + ip = IP(src=self.pg0.remote_ip4, + dst=self.ipv4_map_address, + tos=0) + udp = UDP(sport=self.ipv4_udp_or_tcp_internet_port, + dport=self.ipv4_udp_or_tcp_map_port) + payload = "a" * 82 + tx_pkt = eth / ip / udp / payload + + self.pg_send(self.pg0, tx_pkt * 1) + + rx_pkts = self.pg1.get_capture(1) + rx_pkt = rx_pkts[0] + + self.v6_address_check(rx_pkt) + self.v6_port_check(rx_pkt, UDP) + self.assertEqual(rx_pkt[IPv6].tc, 0) # IPv4 ToS passed to v6 TC + self.assertEqual(rx_pkt[IPv6].nh, IPv6(nh="UDP").nh) + + # + # Normal translation of TCP packets v4 -> v6 direction. + # Send 128 frame size packet for IPv4/TCP. + # Received packet should be translated into IPv6 packet with no + # fragment header. + # + + def test_map_t_tcp_ip4_to_ip6(self): + """ MAP-T TCP IPv4 -> IPv6 """ + + eth = Ether(src=self.pg0.remote_mac, + dst=self.pg0.local_mac) + ip = IP(src=self.pg0.remote_ip4, + dst=self.ipv4_map_address, + tos=0) + tcp = TCP(sport=self.ipv4_udp_or_tcp_internet_port, + dport=self.ipv4_udp_or_tcp_map_port) + payload = "a" * 82 + tx_pkt = eth / ip / tcp / payload + + self.pg_send(self.pg0, tx_pkt * 1) + + rx_pkts = self.pg1.get_capture(1) + rx_pkt = rx_pkts[0] + + self.v6_address_check(rx_pkt) + self.v6_port_check(rx_pkt, TCP) + self.assertEqual(rx_pkt[IPv6].tc, 0) # IPv4 ToS passed to v6 TC + self.assertEqual(rx_pkt[IPv6].nh, IPv6(nh="TCP").nh) + + # + # Normal translation of UDP packets v6 -> v4 direction + # Send 128 frame size packet for IPv6/UDP. + # Received packet should be translated into an IPv4 packet with DF=1. + # + + def test_map_t_udp_ip6_to_ip4(self): + """ MAP-T UDP IPv6 -> IPv4 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IPv6(src=self.ipv6_cpe_address, + dst=self.ipv6_map_address) + udp = UDP(sport=self.ipv6_udp_or_tcp_map_port, + dport=self.ipv6_udp_or_tcp_internet_port) + payload = "a" * 82 + tx_pkt = eth / ip / udp / payload + + self.pg_send(self.pg1, tx_pkt * 1) + + rx_pkts = self.pg0.get_capture(1) + rx_pkt = rx_pkts[0] + + self.v4_address_check(rx_pkt) + self.v4_port_check(rx_pkt, UDP) + self.assertEqual(rx_pkt[IP].proto, IP(proto="udp").proto) + self.assertEqual(rx_pkt[IP].tos, 0) # IPv6 TC passed to v4 ToS + df_bit = IP(flags="DF").flags + self.assertNotEqual(rx_pkt[IP].flags & df_bit, df_bit) + + # + # Normal translation of TCP packets v6 -> v4 direction + # Send 128 frame size packet for IPv6/TCP. + # Received packet should be translated into an IPv4 packet with DF=1 + # + + def test_map_t_tcp_ip6_to_ip4(self): + """ MAP-T TCP IPv6 -> IPv4 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IPv6(src=self.ipv6_cpe_address, + dst=self.ipv6_map_address) + tcp = TCP(sport=self.ipv6_udp_or_tcp_map_port, + dport=self.ipv6_udp_or_tcp_internet_port) + payload = "a" * 82 + tx_pkt = eth / ip / tcp / payload + + self.pg_send(self.pg1, tx_pkt * 1) + + rx_pkts = self.pg0.get_capture(1) + rx_pkt = rx_pkts[0] + + self.v4_address_check(rx_pkt) + self.v4_port_check(rx_pkt, TCP) + self.assertEqual(rx_pkt[IP].proto, IP(proto="tcp").proto) + self.assertEqual(rx_pkt[IP].tos, 0) # IPv6 TC passed to v4 ToS + df_bit = IP(flags="DF").flags + self.assertNotEqual(rx_pkt[IP].flags & df_bit, df_bit) + + # + # Translation of ICMP Echo Request v4 -> v6 direction + # Received packet should be translated into an IPv6 Echo Request. + # + + def test_map_t_echo_request_ip4_to_ip6(self): + """ MAP-T echo request IPv4 -> IPv6 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IP(src=self.pg0.remote_ip4, + dst=self.ipv4_map_address) + icmp = ICMP(type="echo-request", + id=self.ipv6_udp_or_tcp_map_port) + payload = "H" * 10 + tx_pkt = eth / ip / icmp / payload + + self.pg_send(self.pg0, tx_pkt * 1) + + rx_pkts = self.pg1.get_capture(1) + rx_pkt = rx_pkts[0] + + self.assertEqual(rx_pkt[IPv6].nh, IPv6(nh="ICMPv6").nh) + self.assertEqual(rx_pkt[ICMPv6EchoRequest].type, + ICMPv6EchoRequest(type="Echo Request").type) + self.assertEqual(rx_pkt[ICMPv6EchoRequest].code, 0) + self.assertEqual(rx_pkt[ICMPv6EchoRequest].id, + self.ipv6_udp_or_tcp_map_port) + + # + # Translation of ICMP Echo Reply v4 -> v6 direction + # Received packet should be translated into an IPv6 Echo Reply. + # + + def test_map_t_echo_reply_ip4_to_ip6(self): + """ MAP-T echo reply IPv4 -> IPv6 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IP(src=self.pg0.remote_ip4, + dst=self.ipv4_map_address) + icmp = ICMP(type="echo-reply", + id=self.ipv6_udp_or_tcp_map_port) + payload = "H" * 10 + tx_pkt = eth / ip / icmp / payload + + self.pg_send(self.pg0, tx_pkt * 1) + + rx_pkts = self.pg1.get_capture(1) + rx_pkt = rx_pkts[0] + + self.assertEqual(rx_pkt[IPv6].nh, IPv6(nh="ICMPv6").nh) + self.assertEqual(rx_pkt[ICMPv6EchoReply].type, + ICMPv6EchoReply(type="Echo Reply").type) + self.assertEqual(rx_pkt[ICMPv6EchoReply].code, 0) + self.assertEqual(rx_pkt[ICMPv6EchoReply].id, + self.ipv6_udp_or_tcp_map_port) + + # + # Translation of ICMP Time Exceeded v4 -> v6 direction + # Received packet should be translated into an IPv6 Time Exceeded. + # + + def test_map_t_time_exceeded_ip4_to_ip6(self): + """ MAP-T time exceeded IPv4 -> IPv6 """ + + eth = Ether(src=self.pg0.remote_mac, + dst=self.pg0.local_mac) + ip = IP(src=self.pg0.remote_ip4, + dst=self.ipv4_map_address) + icmp = ICMP(type="time-exceeded", code="ttl-zero-during-transit") + ip_inner = IP(dst=self.pg0.remote_ip4, + src=self.ipv4_map_address, ttl=1) + udp_inner = UDP(sport=self.ipv4_udp_or_tcp_map_port, + dport=self.ipv4_udp_or_tcp_internet_port) + payload = "H" * 10 + tx_pkt = eth / ip / icmp / ip_inner / udp_inner / payload + + self.pg_send(self.pg0, tx_pkt * 1) + + rx_pkts = self.pg1.get_capture(1) + rx_pkt = rx_pkts[0] + + self.v6_address_check(rx_pkt) + self.assertEqual(rx_pkt[IPv6].nh, IPv6(nh="ICMPv6").nh) + self.assertEqual(rx_pkt[ICMPv6TimeExceeded].type, + ICMPv6TimeExceeded().type) + self.assertEqual(rx_pkt[ICMPv6TimeExceeded].code, + ICMPv6TimeExceeded( + code="hop limit exceeded in transit").code) + self.assertEqual(rx_pkt[ICMPv6TimeExceeded].hlim, tx_pkt[IP][1].ttl) + self.assertTrue(rx_pkt.haslayer(IPerror6)) + self.assertTrue(rx_pkt.haslayer(UDPerror)) + self.assertEqual(rx_pkt[IPv6].src, rx_pkt[IPerror6].dst) + self.assertEqual(rx_pkt[IPv6].dst, rx_pkt[IPerror6].src) + self.assertEqual(rx_pkt[UDPerror].sport, self.ipv6_udp_or_tcp_map_port) + self.assertEqual(rx_pkt[UDPerror].dport, + self.ipv6_udp_or_tcp_internet_port) + + # + # Translation of ICMP Echo Request v6 -> v4 direction + # Received packet should be translated into an IPv4 Echo Request. + # + + def test_map_t_echo_request_ip6_to_ip4(self): + """ MAP-T echo request IPv6 -> IPv4 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IPv6(src=self.ipv6_cpe_address, + dst=self.ipv6_map_address) + icmp = ICMPv6EchoRequest() + icmp.id = self.ipv6_udp_or_tcp_map_port + payload = "H" * 10 + tx_pkt = eth / ip / icmp / payload + + self.pg_send(self.pg1, tx_pkt * 1) + + rx_pkts = self.pg0.get_capture(1) + rx_pkt = rx_pkts[0] + + self.assertEqual(rx_pkt[IP].proto, IP(proto="icmp").proto) + self.assertEqual(rx_pkt[ICMP].type, ICMP(type="echo-request").type) + self.assertEqual(rx_pkt[ICMP].code, 0) + self.assertEqual(rx_pkt[ICMP].id, self.ipv6_udp_or_tcp_map_port) + + # + # Translation of ICMP Echo Reply v6 -> v4 direction + # Received packet should be translated into an IPv4 Echo Reply. + # + + def test_map_t_echo_reply_ip6_to_ip4(self): + """ MAP-T echo reply IPv6 -> IPv4 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IPv6(src=self.ipv6_cpe_address, + dst=self.ipv6_map_address) + icmp = ICMPv6EchoReply(id=self.ipv6_udp_or_tcp_map_port) + payload = "H" * 10 + tx_pkt = eth / ip / icmp / payload + + self.pg_send(self.pg1, tx_pkt * 1) + + rx_pkts = self.pg0.get_capture(1) + rx_pkt = rx_pkts[0] + + self.assertEqual(rx_pkt[IP].proto, IP(proto="icmp").proto) + self.assertEqual(rx_pkt[ICMP].type, ICMP(type="echo-reply").type) + self.assertEqual(rx_pkt[ICMP].code, 0) + self.assertEqual(rx_pkt[ICMP].id, self.ipv6_udp_or_tcp_map_port) + + # + # Translation of ICMP Packet Too Big v6 -> v4 direction + # Received packet should be translated into an IPv4 Dest Unreachable. + # + + def test_map_t_packet_too_big_ip6_to_ip4(self): + """ MAP-T packet too big IPv6 -> IPv4 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IPv6(src=self.ipv6_cpe_address, + dst=self.ipv6_map_address) + icmp = ICMPv6PacketTooBig(mtu=1280) + ip_inner = IPv6(src=self.ipv6_map_address, + dst=self.ipv6_cpe_address) + udp_inner = UDP(sport=self.ipv6_udp_or_tcp_internet_port, + dport=self.ipv6_udp_or_tcp_map_port) + payload = "H" * 10 + tx_pkt = eth / ip / icmp / ip_inner / udp_inner / payload + + self.pg_send(self.pg1, tx_pkt * 1) + + rx_pkts = self.pg0.get_capture(1) + rx_pkt = rx_pkts[0] + + self.v4_address_check(rx_pkt) + self.assertEqual(rx_pkt[IP].proto, IP(proto="icmp").proto) + self.assertEqual(rx_pkt[ICMP].type, ICMP(type="dest-unreach").type) + self.assertEqual(rx_pkt[ICMP].code, + ICMP(code="fragmentation-needed").code) + self.assertEqual(rx_pkt[ICMP].nexthopmtu, + tx_pkt[ICMPv6PacketTooBig].mtu - 20) + self.assertTrue(rx_pkt.haslayer(IPerror)) + self.assertTrue(rx_pkt.haslayer(UDPerror)) + self.assertEqual(rx_pkt[IP].src, rx_pkt[IPerror].dst) + self.assertEqual(rx_pkt[IP].dst, rx_pkt[IPerror].src) + self.assertEqual(rx_pkt[UDPerror].sport, + self.ipv4_udp_or_tcp_internet_port) + self.assertEqual(rx_pkt[UDPerror].dport, self.ipv4_udp_or_tcp_map_port) + + # + # Translation of ICMP Time Exceeded v6 -> v4 direction + # Received packet should be translated into an IPv4 Time Exceeded. + # + + def test_map_t_time_exceeded_ip6_to_ip4(self): + """ MAP-T time exceeded IPv6 -> IPv4 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IPv6(src=self.ipv6_cpe_address, + dst=self.ipv6_map_address) + icmp = ICMPv6TimeExceeded() + ip_inner = IPv6(src=self.ipv6_map_address, + dst=self.ipv6_cpe_address, hlim=1) + udp_inner = UDP(sport=self.ipv6_udp_or_tcp_internet_port, + dport=self.ipv6_udp_or_tcp_map_port) + payload = "H" * 10 + tx_pkt = eth / ip / icmp / ip_inner / udp_inner / payload + + self.pg_send(self.pg1, tx_pkt * 1) + + rx_pkts = self.pg0.get_capture(1) + rx_pkt = rx_pkts[0] + + self.v4_address_check(rx_pkt) + self.assertEqual(rx_pkt[IP].proto, IP(proto="icmp").proto) + self.assertEqual(rx_pkt[ICMP].type, ICMP(type="time-exceeded").type) + self.assertEqual(rx_pkt[ICMP].code, + ICMP(code="ttl-zero-during-transit").code) + self.assertEqual(rx_pkt[ICMP].ttl, tx_pkt[IPv6][1].hlim) + self.assertTrue(rx_pkt.haslayer(IPerror)) + self.assertTrue(rx_pkt.haslayer(UDPerror)) + self.assertEqual(rx_pkt[IP].src, rx_pkt[IPerror].dst) + self.assertEqual(rx_pkt[IP].dst, rx_pkt[IPerror].src) + self.assertEqual(rx_pkt[UDPerror].sport, + self.ipv4_udp_or_tcp_internet_port) + self.assertEqual(rx_pkt[UDPerror].dport, self.ipv4_udp_or_tcp_map_port) + + # + # Spoofed IPv4 Source Address v6 -> v4 direction + # Send a packet with a wrong IPv4 address embedded in bits 72-103. + # The BR should either drop the packet, or rewrite the spoofed + # source IPv4 as the actual source IPv4 address. + # The BR really should drop the packet. + # + + def test_map_t_spoof_ipv4_src_addr_ip6_to_ip4(self): + """ MAP-T spoof ipv4 src addr IPv6 -> IPv4 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IPv6(src=self.ipv6_spoof_address, + dst=self.ipv6_map_address) + udp = UDP(sport=self.ipv6_udp_or_tcp_map_port, + dport=self.ipv6_udp_or_tcp_internet_port) + payload = "a" * 82 + tx_pkt = eth / ip / udp / payload + + self.pg_send(self.pg1, tx_pkt * 1) + + self.pg0.get_capture(0, timeout=1) + self.pg0.assert_nothing_captured("Should drop IPv4 spoof address") + + # + # Spoofed IPv4 Source Prefix v6 -> v4 direction + # Send a packet with a wrong IPv4 prefix embedded in bits 72-103. + # The BR should either drop the packet, or rewrite the source IPv4 + # to the prefix that matches the source IPv4 address. + # + + def test_map_t_spoof_ipv4_src_prefix_ip6_to_ip4(self): + """ MAP-T spoof ipv4 src prefix IPv6 -> IPv4 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IPv6(src=self.ipv6_spoof_prefix, + dst=self.ipv6_map_address) + udp = UDP(sport=self.ipv6_udp_or_tcp_map_port, + dport=self.ipv6_udp_or_tcp_internet_port) + payload = "a" * 82 + tx_pkt = eth / ip / udp / payload + + self.pg_send(self.pg1, tx_pkt * 1) + + self.pg0.get_capture(0, timeout=1) + self.pg0.assert_nothing_captured("Should drop IPv4 spoof prefix") + + # + # Spoofed IPv6 PSID v6 -> v4 direction + # Send a packet with a wrong IPv6 port PSID + # The BR should drop the packet. + # + + def test_map_t_spoof_psid_ip6_to_ip4(self): + """ MAP-T spoof psid IPv6 -> IPv4 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IPv6(src=self.ipv6_spoof_psid, + dst=self.ipv6_map_address) + udp = UDP(sport=self.ipv6_udp_or_tcp_map_port, + dport=self.ipv6_udp_or_tcp_internet_port) + payload = "a" * 82 + tx_pkt = eth / ip / udp / payload + + self.pg_send(self.pg1, tx_pkt * 1) + + self.pg0.get_capture(0, timeout=1) + self.pg0.assert_nothing_captured("Should drop IPv6 spoof PSID") + + # + # Spoofed IPv6 subnet field v6 -> v4 direction + # Send a packet with a wrong IPv6 subnet as "2001:db8:f1" + # The BR should drop the packet. + # + + def test_map_t_spoof_subnet_ip6_to_ip4(self): + """ MAP-T spoof subnet IPv6 -> IPv4 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IPv6(src=self.ipv6_spoof_subnet, + dst=self.ipv6_map_address) + udp = UDP(sport=self.ipv6_udp_or_tcp_map_port, + dport=self.ipv6_udp_or_tcp_internet_port) + payload = "a" * 82 + tx_pkt = eth / ip / udp / payload + + self.pg_send(self.pg1, tx_pkt * 1) + + self.pg0.get_capture(0, timeout=1) + self.pg0.assert_nothing_captured("Should drop IPv6 spoof subnet") + + # + # Spoofed IPv6 port PSID v6 -> v4 direction + # Send a packet with a wrong IPv6 port PSID + # The BR should drop the packet. + # + + def test_map_t_spoof_port_psid_ip6_to_ip4(self): + """ MAP-T spoof port psid IPv6 -> IPv4 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IPv6(src=self.ipv6_cpe_address, + dst=self.ipv6_map_address) + udp = UDP(sport=self.ipv6_udp_or_tcp_spoof_port, + dport=self.ipv6_udp_or_tcp_internet_port) + payload = "a" * 82 + tx_pkt = eth / ip / udp / payload + + self.pg_send(self.pg1, tx_pkt * 1) + + self.pg0.get_capture(0, timeout=1) + self.pg0.assert_nothing_captured("Should drop IPv6 spoof port PSID") + + # + # Spoofed IPv6 ICMP ID PSID v6 -> v4 direction + # Send a packet with a wrong IPv6 IMCP ID PSID + # The BR should drop the packet. + # + + def test_map_t_spoof_icmp_id_psid_ip6_to_ip4(self): + """ MAP-T spoof ICMP id psid IPv6 -> IPv4 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IPv6(src=self.ipv6_cpe_address, + dst=self.ipv6_map_address) + icmp = ICMPv6EchoRequest() + icmp.id = self.ipv6_udp_or_tcp_spoof_port + payload = "H" * 10 + tx_pkt = eth / ip / icmp / payload + + self.pg_send(self.pg1, tx_pkt * 1) + + self.pg0.get_capture(0, timeout=1) + self.pg0.assert_nothing_captured("Should drop IPv6 spoof port PSID") + + # + # Map to Map - same rule, different address + # + + @unittest.skip("Fixme: correct behavior needs clarification") + def test_map_t_same_rule_diff_addr_ip6_to_ip4(self): + """ MAP-T same rule, diff addr IPv6 -> IPv6 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IPv6(src=self.ipv6_cpe_address, + dst=self.ipv6_map_same_rule_diff_addr) + udp = UDP(sport=self.ipv6_udp_or_tcp_map_port, + dport=1025) + payload = "a" * 82 + tx_pkt = eth / ip / udp / payload + + self.pg_send(self.pg1, tx_pkt * 1) + + rx_pkts = self.pg1.get_capture(1) + rx_pkt = rx_pkts[0] + + # + # Map to Map - same rule, same address + # + + @unittest.skip("Fixme: correct behavior needs clarification") + def test_map_t_same_rule_same_addr_ip6_to_ip4(self): + """ MAP-T same rule, same addr IPv6 -> IPv6 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IPv6(src=self.ipv6_cpe_address, + dst=self.ipv6_map_same_rule_same_addr) + udp = UDP(sport=self.ipv6_udp_or_tcp_map_port, + dport=1025) + payload = "a" * 82 + tx_pkt = eth / ip / udp / payload + + self.pg_send(self.pg1, tx_pkt * 1) + + rx_pkts = self.pg1.get_capture(1) + rx_pkt = rx_pkts[0] + +if __name__ == '__main__': + unittest.main(testRunner=VppTestRunner) |