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Diffstat (limited to 'src/plugins/map/test/test_map.py')
| -rw-r--r-- | src/plugins/map/test/test_map.py | 964 |
1 files changed, 0 insertions, 964 deletions
diff --git a/src/plugins/map/test/test_map.py b/src/plugins/map/test/test_map.py deleted file mode 100644 index 90fee301267..00000000000 --- a/src/plugins/map/test/test_map.py +++ /dev/null @@ -1,964 +0,0 @@ -#!/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 -from scapy.layers.inet6 import IPv6, ICMPv6TimeExceeded, IPv6ExtHdrFragment, \ - ICMPv6EchoRequest, ICMPv6DestUnreach - - -class TestMAP(VppTestCase): - """ MAP Test Case """ - - @classmethod - def setUpClass(cls): - super(TestMAP, cls).setUpClass() - - @classmethod - def tearDownClass(cls): - super(TestMAP, cls).tearDownClass() - - def setUp(self): - super(TestMAP, self).setUp() - - # create 2 pg interfaces - self.create_pg_interfaces(range(4)) - - # pg0 is 'inside' IPv4 - self.pg0.admin_up() - self.pg0.config_ip4() - self.pg0.resolve_arp() - self.pg0.generate_remote_hosts(2) - self.pg0.configure_ipv4_neighbors() - - # pg1 is 'outside' IPv6 - self.pg1.admin_up() - self.pg1.config_ip6() - self.pg1.generate_remote_hosts(4) - self.pg1.configure_ipv6_neighbors() - - def tearDown(self): - super(TestMAP, self).tearDown() - for i in self.pg_interfaces: - i.unconfig_ip4() - i.unconfig_ip6() - i.admin_down() - - def send_and_assert_encapped(self, packets, ip6_src, ip6_dst, dmac=None): - if not dmac: - dmac = self.pg1.remote_mac - - self.pg0.add_stream(packets) - - self.pg_enable_capture(self.pg_interfaces) - self.pg_start() - - capture = self.pg1.get_capture(len(packets)) - for rx, tx in zip(capture, packets): - self.assertEqual(rx[Ether].dst, dmac) - self.assertEqual(rx[IP].src, tx[IP].src) - self.assertEqual(rx[IPv6].src, ip6_src) - self.assertEqual(rx[IPv6].dst, ip6_dst) - - def send_and_assert_encapped_one(self, packet, ip6_src, ip6_dst, - dmac=None): - return self.send_and_assert_encapped([packet], ip6_src, ip6_dst, dmac) - - def test_api_map_domain_dump(self): - map_dst = '2001::/64' - map_src = '3000::1/128' - client_pfx = '192.168.0.0/16' - tag = 'MAP-E tag.' - index = self.vapi.map_add_domain(ip4_prefix=client_pfx, - ip6_prefix=map_dst, - ip6_src=map_src, - tag=tag).index - rv = self.vapi.map_domain_dump() - - # restore the state early so as to not impact subsequent tests. - # If an assert fails, we will not get the chance to do it at the end. - self.vapi.map_del_domain(index=index) - - self.assertGreater(len(rv), 0, - "Expected output from 'map_domain_dump'") - - # typedefs are returned as ipaddress objects. - # wrap results in str() ugh! to avoid the need to call unicode. - self.assertEqual(str(rv[0].ip4_prefix), client_pfx) - self.assertEqual(str(rv[0].ip6_prefix), map_dst) - self.assertEqual(str(rv[0].ip6_src), map_src) - - self.assertEqual(rv[0].tag, tag, - "output produced incorrect tag value.") - - def create_domains(self, ip4_pfx_str, ip6_pfx_str, ip6_src_str): - ip4_pfx = ipaddress.ip_network(ip4_pfx_str) - ip6_dst = ipaddress.ip_network(ip6_pfx_str) - mod = ip4_pfx.num_addresses / 1024 - indicies = [] - for i in range(ip4_pfx.num_addresses): - rv = self.vapi.map_add_domain(ip6_prefix=ip6_pfx_str, - ip4_prefix=str(ip4_pfx[i]) + "/32", - ip6_src=ip6_src_str) - indicies.append(rv.index) - return indicies - - def test_api_map_domains_get(self): - # Create a bunch of domains - no_domains = 4096 # This must be large enough to ensure VPP suspends - domains = self.create_domains('130.67.0.0/20', '2001::/32', - '2001::1/128') - self.assertEqual(len(domains), no_domains) - - d = [] - cursor = 0 - - # Invalid cursor - rv, details = self.vapi.map_domains_get(cursor=no_domains+10) - self.assertEqual(rv.retval, -7) - - # Delete a domain in the middle of walk - rv, details = self.vapi.map_domains_get(cursor=0) - self.assertEqual(rv.retval, -165) - self.vapi.map_del_domain(index=rv.cursor) - domains.remove(rv.cursor) - - # Continue at point of deleted cursor - rv, details = self.vapi.map_domains_get(cursor=rv.cursor) - self.assertIn(rv.retval, [0, -165]) - - d = list(self.vapi.vpp.details_iter(self.vapi.map_domains_get)) - self.assertEqual(len(d), no_domains - 1) - - # Clean up - for i in domains: - self.vapi.map_del_domain(index=i) - - def test_map_e_udp(self): - """ MAP-E UDP""" - - # - # Add a route to the MAP-BR - # - map_br_pfx = "2001::" - map_br_pfx_len = 32 - map_route = VppIpRoute(self, - map_br_pfx, - map_br_pfx_len, - [VppRoutePath(self.pg1.remote_ip6, - self.pg1.sw_if_index)]) - map_route.add_vpp_config() - - # - # Add a domain that maps from pg0 to pg1 - # - map_dst = '2001::/32' - map_src = '3000::1/128' - client_pfx = '192.168.0.0/16' - map_translated_addr = '2001:0:101:7000:0:c0a8:101:7' - tag = 'MAP-E tag.' - self.vapi.map_add_domain(ip4_prefix=client_pfx, - ip6_prefix=map_dst, - ip6_src=map_src, - ea_bits_len=20, - psid_offset=4, - psid_length=4, - tag=tag) - - self.vapi.map_param_set_security_check(enable=1, fragments=1) - - # Enable MAP on interface. - self.vapi.map_if_enable_disable(is_enable=1, - sw_if_index=self.pg0.sw_if_index, - is_translation=0) - - # Ensure MAP doesn't steal all packets! - v4 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / - IP(src=self.pg0.remote_ip4, dst=self.pg0.remote_ip4) / - UDP(sport=20000, dport=10000) / - Raw(b'\xa5' * 100)) - rx = self.send_and_expect(self.pg0, v4 * 4, self.pg0) - v4_reply = v4[1] - v4_reply.ttl -= 1 - for p in rx: - self.validate(p[1], v4_reply) - - # - # Fire in a v4 packet that will be encapped to the BR - # - v4 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / - IP(src=self.pg0.remote_ip4, dst='192.168.1.1') / - UDP(sport=20000, dport=10000) / - Raw(b'\xa5' * 100)) - - self.send_and_assert_encapped(v4 * 4, "3000::1", map_translated_addr) - - # - # Verify reordered fragments are able to pass as well - # - v4 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / - IP(id=1, src=self.pg0.remote_ip4, dst='192.168.1.1') / - UDP(sport=20000, dport=10000) / - Raw(b'\xa5' * 1000)) - - frags = fragment_rfc791(v4, 400) - frags.reverse() - - self.send_and_assert_encapped(frags, "3000::1", map_translated_addr) - - # Enable MAP on interface. - self.vapi.map_if_enable_disable(is_enable=1, - sw_if_index=self.pg1.sw_if_index, - is_translation=0) - - # Ensure MAP doesn't steal all packets - v6 = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / - IPv6(src=self.pg1.remote_ip6, dst=self.pg1.remote_ip6) / - UDP(sport=20000, dport=10000) / - Raw(b'\xa5' * 100)) - rx = self.send_and_expect(self.pg1, v6*1, self.pg1) - v6_reply = v6[1] - v6_reply.hlim -= 1 - for p in rx: - self.validate(p[1], v6_reply) - - # - # Fire in a V6 encapped packet. - # expect a decapped packet on the inside ip4 link - # - p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / - IPv6(dst='3000::1', src=map_translated_addr) / - IP(dst=self.pg0.remote_ip4, src='192.168.1.1') / - UDP(sport=10000, dport=20000) / - Raw(b'\xa5' * 100)) - - self.pg1.add_stream(p) - - self.pg_enable_capture(self.pg_interfaces) - self.pg_start() - - rx = self.pg0.get_capture(1) - rx = rx[0] - - self.assertFalse(rx.haslayer(IPv6)) - self.assertEqual(rx[IP].src, p[IP].src) - self.assertEqual(rx[IP].dst, p[IP].dst) - - # - # Verify encapped reordered fragments pass as well - # - p = (IP(id=1, dst=self.pg0.remote_ip4, src='192.168.1.1') / - UDP(sport=10000, dport=20000) / - Raw(b'\xa5' * 1500)) - frags = fragment_rfc791(p, 400) - frags.reverse() - - stream = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / - IPv6(dst='3000::1', src=map_translated_addr) / - x for x in frags) - - self.pg1.add_stream(stream) - - self.pg_enable_capture(self.pg_interfaces) - self.pg_start() - - rx = self.pg0.get_capture(len(frags)) - - for r in rx: - self.assertFalse(r.haslayer(IPv6)) - self.assertEqual(r[IP].src, p[IP].src) - self.assertEqual(r[IP].dst, p[IP].dst) - - # Verify that fragments pass even if ipv6 layer is fragmented - stream = (IPv6(dst='3000::1', src=map_translated_addr) / x - for x in frags) - - v6_stream = [ - Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / x - for i in range(len(frags)) - for x in fragment_rfc8200( - IPv6(dst='3000::1', src=map_translated_addr) / frags[i], - i, 200)] - - self.pg1.add_stream(v6_stream) - - self.pg_enable_capture(self.pg_interfaces) - self.pg_start() - - rx = self.pg0.get_capture(len(frags)) - - for r in rx: - self.assertFalse(r.haslayer(IPv6)) - self.assertEqual(r[IP].src, p[IP].src) - self.assertEqual(r[IP].dst, p[IP].dst) - - # - # Pre-resolve. No API for this!! - # - self.vapi.ppcli("map params pre-resolve ip6-nh 4001::1") - - self.send_and_assert_no_replies(self.pg0, v4, - "resolved via default route") - - # - # Add a route to 4001::1. Expect the encapped traffic to be - # sent via that routes next-hop - # - pre_res_route = VppIpRoute(self, "4001::1", 128, - [VppRoutePath(self.pg1.remote_hosts[2].ip6, - self.pg1.sw_if_index)]) - pre_res_route.add_vpp_config() - - self.send_and_assert_encapped_one(v4, "3000::1", - map_translated_addr, - dmac=self.pg1.remote_hosts[2].mac) - - # - # change the route to the pre-solved next-hop - # - pre_res_route.modify([VppRoutePath(self.pg1.remote_hosts[3].ip6, - self.pg1.sw_if_index)]) - pre_res_route.add_vpp_config() - - self.send_and_assert_encapped_one(v4, "3000::1", - map_translated_addr, - dmac=self.pg1.remote_hosts[3].mac) - - # - # cleanup. The test infra's object registry will ensure - # the route is really gone and thus that the unresolve worked. - # - pre_res_route.remove_vpp_config() - self.vapi.ppcli("map params pre-resolve del ip6-nh 4001::1") - - def test_map_e_inner_frag(self): - """ MAP-E Inner fragmentation """ - - # - # Add a route to the MAP-BR - # - map_br_pfx = "2001::" - map_br_pfx_len = 32 - map_route = VppIpRoute(self, - map_br_pfx, - map_br_pfx_len, - [VppRoutePath(self.pg1.remote_ip6, - self.pg1.sw_if_index)]) - map_route.add_vpp_config() - - # - # Add a domain that maps from pg0 to pg1 - # - map_dst = '2001::/32' - map_src = '3000::1/128' - client_pfx = '192.168.0.0/16' - map_translated_addr = '2001:0:101:7000:0:c0a8:101:7' - tag = 'MAP-E tag.' - self.vapi.map_add_domain(ip4_prefix=client_pfx, - ip6_prefix=map_dst, - ip6_src=map_src, - ea_bits_len=20, - psid_offset=4, - psid_length=4, - mtu=1000, - tag=tag) - - # Enable MAP on interface. - self.vapi.map_if_enable_disable(is_enable=1, - sw_if_index=self.pg0.sw_if_index, - is_translation=0) - - # Enable inner fragmentation - self.vapi.map_param_set_fragmentation(inner=1) - - v4 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / - IP(src=self.pg0.remote_ip4, dst='192.168.1.1') / - UDP(sport=20000, dport=10000) / - Raw(b'\xa5' * 1300)) - - self.pg_send(self.pg0, v4*1) - rx = self.pg1.get_capture(2) - - frags = fragment_rfc791(v4[1], 1000) - frags[0].id = 0 - frags[1].id = 0 - frags[0].ttl -= 1 - frags[1].ttl -= 1 - frags[0].chksum = 0 - frags[1].chksum = 0 - - v6_reply1 = (IPv6(src='3000::1', dst=map_translated_addr, hlim=63) / - frags[0]) - v6_reply2 = (IPv6(src='3000::1', dst=map_translated_addr, hlim=63) / - frags[1]) - rx[0][1].fl = 0 - rx[1][1].fl = 0 - rx[0][1][IP].id = 0 - rx[1][1][IP].id = 0 - rx[0][1][IP].chksum = 0 - rx[1][1][IP].chksum = 0 - - self.validate(rx[0][1], v6_reply1) - self.validate(rx[1][1], v6_reply2) - - def test_map_e_tcp_mss(self): - """ MAP-E TCP MSS""" - - # - # Add a route to the MAP-BR - # - map_br_pfx = "2001::" - map_br_pfx_len = 32 - map_route = VppIpRoute(self, - map_br_pfx, - map_br_pfx_len, - [VppRoutePath(self.pg1.remote_ip6, - self.pg1.sw_if_index)]) - map_route.add_vpp_config() - - # - # Add a domain that maps from pg0 to pg1 - # - map_dst = '2001::/32' - map_src = '3000::1/128' - client_pfx = '192.168.0.0/16' - map_translated_addr = '2001:0:101:5000:0:c0a8:101:5' - tag = 'MAP-E TCP tag.' - self.vapi.map_add_domain(ip4_prefix=client_pfx, - ip6_prefix=map_dst, - ip6_src=map_src, - ea_bits_len=20, - psid_offset=4, - psid_length=4, - tag=tag) - - # Enable MAP on pg0 interface. - self.vapi.map_if_enable_disable(is_enable=1, - sw_if_index=self.pg0.sw_if_index, - is_translation=0) - - # Enable MAP on pg1 interface. - self.vapi.map_if_enable_disable(is_enable=1, - sw_if_index=self.pg1.sw_if_index, - is_translation=0) - - # TCP MSS clamping - mss_clamp = 1300 - self.vapi.map_param_set_tcp(mss_clamp) - - # - # Send a v4 packet that will be encapped. - # - p_ether = Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) - p_ip4 = IP(src=self.pg0.remote_ip4, dst='192.168.1.1') - p_tcp = TCP(sport=20000, dport=30000, flags="S", - options=[("MSS", 1455)]) - p4 = p_ether / p_ip4 / p_tcp - - self.pg1.add_stream(p4) - self.pg_enable_capture(self.pg_interfaces) - self.pg_start() - - rx = self.pg1.get_capture(1) - rx = rx[0] - - self.assertTrue(rx.haslayer(IPv6)) - self.assertEqual(rx[IP].src, p4[IP].src) - self.assertEqual(rx[IP].dst, p4[IP].dst) - self.assertEqual(rx[IPv6].src, "3000::1") - self.assertEqual(rx[TCP].options, - TCP(options=[('MSS', mss_clamp)]).options) - - def validate(self, rx, expected): - self.assertEqual(rx, expected.__class__(scapy.compat.raw(expected))) - - def validate_frag6(self, p6_frag, p_ip6_expected): - self.assertFalse(p6_frag.haslayer(IP)) - self.assertTrue(p6_frag.haslayer(IPv6)) - self.assertTrue(p6_frag.haslayer(IPv6ExtHdrFragment)) - self.assertEqual(p6_frag[IPv6].src, p_ip6_expected.src) - self.assertEqual(p6_frag[IPv6].dst, p_ip6_expected.dst) - - def validate_frag_payload_len6(self, rx, proto, payload_len_expected): - payload_total = 0 - for p in rx: - payload_total += p[IPv6].plen - - # First fragment has proto - payload_total -= len(proto()) - - # Every fragment has IPv6 fragment header - payload_total -= len(IPv6ExtHdrFragment()) * len(rx) - - self.assertEqual(payload_total, payload_len_expected) - - def validate_frag4(self, p4_frag, p_ip4_expected): - self.assertFalse(p4_frag.haslayer(IPv6)) - self.assertTrue(p4_frag.haslayer(IP)) - self.assertTrue(p4_frag[IP].frag != 0 or p4_frag[IP].flags.MF) - self.assertEqual(p4_frag[IP].src, p_ip4_expected.src) - self.assertEqual(p4_frag[IP].dst, p_ip4_expected.dst) - - def validate_frag_payload_len4(self, rx, proto, payload_len_expected): - payload_total = 0 - for p in rx: - payload_total += len(p[IP].payload) - - # First fragment has proto - payload_total -= len(proto()) - - self.assertEqual(payload_total, payload_len_expected) - - def payload(self, len): - return 'x' * len - - def test_map_t(self): - """ MAP-T """ - - # - # Add a domain that maps from pg0 to pg1 - # - map_dst = '2001:db8::/32' - map_src = '1234:5678:90ab:cdef::/64' - ip4_pfx = '192.168.0.0/24' - tag = 'MAP-T Tag.' - - self.vapi.map_add_domain(ip6_prefix=map_dst, - ip4_prefix=ip4_pfx, - ip6_src=map_src, - ea_bits_len=16, - psid_offset=6, - psid_length=4, - mtu=1500, - tag=tag) - - # 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) - - # Ensure MAP doesn't steal all packets! - v4 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / - IP(src=self.pg0.remote_ip4, dst=self.pg0.remote_ip4) / - UDP(sport=20000, dport=10000) / - Raw(b'\xa5' * 100)) - rx = self.send_and_expect(self.pg0, v4*1, self.pg0) - v4_reply = v4[1] - v4_reply.ttl -= 1 - for p in rx: - self.validate(p[1], v4_reply) - # Ensure MAP doesn't steal all packets - v6 = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / - IPv6(src=self.pg1.remote_ip6, dst=self.pg1.remote_ip6) / - UDP(sport=20000, dport=10000) / - Raw(b'\xa5' * 100)) - rx = self.send_and_expect(self.pg1, v6*1, self.pg1) - v6_reply = v6[1] - v6_reply.hlim -= 1 - for p in rx: - self.validate(p[1], v6_reply) - - map_route = VppIpRoute(self, - "2001:db8::", - 32, - [VppRoutePath(self.pg1.remote_ip6, - self.pg1.sw_if_index, - proto=DpoProto.DPO_PROTO_IP6)]) - map_route.add_vpp_config() - - # - # Send a v4 packet that will be translated - # - p_ether = Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) - p_ip4 = IP(src=self.pg0.remote_ip4, dst='192.168.0.1') - payload = TCP(sport=0xabcd, dport=0xabcd) - - p4 = (p_ether / p_ip4 / payload) - p6_translated = (IPv6(src="1234:5678:90ab:cdef:ac:1001:200:0", - dst="2001:db8:1f0::c0a8:1:f") / payload) - p6_translated.hlim -= 1 - rx = self.send_and_expect(self.pg0, p4*1, self.pg1) - for p in rx: - self.validate(p[1], p6_translated) - - # Send back an IPv6 packet that will be "untranslated" - p_ether6 = Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) - p_ip6 = IPv6(src='2001:db8:1f0::c0a8:1:f', - dst='1234:5678:90ab:cdef:ac:1001:200:0') - p6 = (p_ether6 / p_ip6 / payload) - p4_translated = (IP(src='192.168.0.1', - dst=self.pg0.remote_ip4) / payload) - p4_translated.id = 0 - p4_translated.ttl -= 1 - rx = self.send_and_expect(self.pg1, p6*1, self.pg0) - for p in rx: - self.validate(p[1], p4_translated) - - # IPv4 TTL=0 - ip4_ttl_expired = IP(src=self.pg0.remote_ip4, dst='192.168.0.1', ttl=0) - p4 = (p_ether / ip4_ttl_expired / payload) - - icmp4_reply = (IP(id=0, ttl=254, src=self.pg0.local_ip4, - dst=self.pg0.remote_ip4) / - ICMP(type='time-exceeded', - code='ttl-zero-during-transit') / - IP(src=self.pg0.remote_ip4, - dst='192.168.0.1', ttl=0) / payload) - rx = self.send_and_expect(self.pg0, p4*1, self.pg0) - for p in rx: - self.validate(p[1], icmp4_reply) - - # IPv4 TTL=1 - ip4_ttl_expired = IP(src=self.pg0.remote_ip4, dst='192.168.0.1', ttl=1) - p4 = (p_ether / ip4_ttl_expired / payload) - - icmp4_reply = (IP(id=0, ttl=254, src=self.pg0.local_ip4, - dst=self.pg0.remote_ip4) / - ICMP(type='time-exceeded', - code='ttl-zero-during-transit') / - IP(src=self.pg0.remote_ip4, - dst='192.168.0.1', ttl=1) / payload) - rx = self.send_and_expect(self.pg0, p4*1, self.pg0) - for p in rx: - self.validate(p[1], icmp4_reply) - - # IPv6 Hop limit at BR - ip6_hlim_expired = IPv6(hlim=1, src='2001:db8:1ab::c0a8:1:ab', - dst='1234:5678:90ab:cdef:ac:1001:200:0') - p6 = (p_ether6 / ip6_hlim_expired / payload) - - icmp6_reply = (IPv6(hlim=255, src=self.pg1.local_ip6, - dst="2001:db8:1ab::c0a8:1:ab") / - ICMPv6TimeExceeded(code=0) / - IPv6(src="2001:db8:1ab::c0a8:1:ab", - dst='1234:5678:90ab:cdef:ac:1001:200:0', - hlim=1) / payload) - rx = self.send_and_expect(self.pg1, p6*1, self.pg1) - for p in rx: - self.validate(p[1], icmp6_reply) - - # IPv6 Hop limit beyond BR - ip6_hlim_expired = IPv6(hlim=0, src='2001:db8:1ab::c0a8:1:ab', - dst='1234:5678:90ab:cdef:ac:1001:200:0') - p6 = (p_ether6 / ip6_hlim_expired / payload) - - icmp6_reply = (IPv6(hlim=255, src=self.pg1.local_ip6, - dst="2001:db8:1ab::c0a8:1:ab") / - ICMPv6TimeExceeded(code=0) / - IPv6(src="2001:db8:1ab::c0a8:1:ab", - dst='1234:5678:90ab:cdef:ac:1001:200:0', - hlim=0) / payload) - rx = self.send_and_expect(self.pg1, p6*1, self.pg1) - for p in rx: - self.validate(p[1], icmp6_reply) - - # IPv4 Well-known port - p_ip4 = IP(src=self.pg0.remote_ip4, dst='192.168.0.1') - payload = UDP(sport=200, dport=200) - p4 = (p_ether / p_ip4 / payload) - self.send_and_assert_no_replies(self.pg0, p4*1) - - # IPv6 Well-known port - payload = UDP(sport=200, dport=200) - p6 = (p_ether6 / p_ip6 / payload) - self.send_and_assert_no_replies(self.pg1, p6*1) - - # UDP packet fragmentation - payload_len = 1453 - payload = UDP(sport=40000, dport=4000) / self.payload(payload_len) - p4 = (p_ether / p_ip4 / payload) - self.pg_enable_capture() - self.pg0.add_stream(p4) - self.pg_start() - rx = self.pg1.get_capture(2) - - p_ip6_translated = IPv6(src='1234:5678:90ab:cdef:ac:1001:200:0', - dst='2001:db8:1e0::c0a8:1:e') - for p in rx: - self.validate_frag6(p, p_ip6_translated) - - self.validate_frag_payload_len6(rx, UDP, payload_len) - - # UDP packet fragmentation send fragments - payload_len = 1453 - payload = UDP(sport=40000, dport=4000) / self.payload(payload_len) - p4 = (p_ether / p_ip4 / payload) - frags = fragment_rfc791(p4, fragsize=1000) - self.pg_enable_capture() - self.pg0.add_stream(frags) - self.pg_start() - rx = self.pg1.get_capture(2) - - for p in rx: - self.validate_frag6(p, p_ip6_translated) - - self.validate_frag_payload_len6(rx, UDP, payload_len) - - # Send back an fragmented IPv6 UDP packet that will be "untranslated" - payload = UDP(sport=4000, dport=40000) / self.payload(payload_len) - p_ether6 = Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) - p_ip6 = IPv6(src='2001:db8:1e0::c0a8:1:e', - dst='1234:5678:90ab:cdef:ac:1001:200:0') - p6 = (p_ether6 / p_ip6 / payload) - frags6 = fragment_rfc8200(p6, identification=0xdcba, fragsize=1000) - - p_ip4_translated = IP(src='192.168.0.1', dst=self.pg0.remote_ip4) - p4_translated = (p_ip4_translated / payload) - p4_translated.id = 0 - p4_translated.ttl -= 1 - - self.pg_enable_capture() - self.pg1.add_stream(frags6) - self.pg_start() - rx = self.pg0.get_capture(2) - - for p in rx: - self.validate_frag4(p, p4_translated) - - self.validate_frag_payload_len4(rx, UDP, payload_len) - - # ICMP packet fragmentation - payload = ICMP(id=6529) / self.payload(payload_len) - p4 = (p_ether / p_ip4 / payload) - self.pg_enable_capture() - self.pg0.add_stream(p4) - self.pg_start() - rx = self.pg1.get_capture(2) - - p_ip6_translated = IPv6(src='1234:5678:90ab:cdef:ac:1001:200:0', - dst='2001:db8:160::c0a8:1:6') - for p in rx: - self.validate_frag6(p, p_ip6_translated) - - self.validate_frag_payload_len6(rx, ICMPv6EchoRequest, payload_len) - - # ICMP packet fragmentation send fragments - payload = ICMP(id=6529) / self.payload(payload_len) - p4 = (p_ether / p_ip4 / payload) - frags = fragment_rfc791(p4, fragsize=1000) - self.pg_enable_capture() - self.pg0.add_stream(frags) - self.pg_start() - rx = self.pg1.get_capture(2) - - for p in rx: - self.validate_frag6(p, p_ip6_translated) - - self.validate_frag_payload_len6(rx, ICMPv6EchoRequest, payload_len) - - # TCP MSS clamping - self.vapi.map_param_set_tcp(1300) - - # - # Send a v4 TCP SYN packet that will be translated and MSS clamped - # - p_ether = Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) - p_ip4 = IP(src=self.pg0.remote_ip4, dst='192.168.0.1') - payload = TCP(sport=0xabcd, dport=0xabcd, flags="S", - options=[('MSS', 1460)]) - - p4 = (p_ether / p_ip4 / payload) - p6_translated = (IPv6(src="1234:5678:90ab:cdef:ac:1001:200:0", - dst="2001:db8:1f0::c0a8:1:f") / payload) - p6_translated.hlim -= 1 - p6_translated[TCP].options = [('MSS', 1300)] - rx = self.send_and_expect(self.pg0, p4*1, self.pg1) - for p in rx: - self.validate(p[1], p6_translated) - - # Send back an IPv6 packet that will be "untranslated" - p_ether6 = Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) - p_ip6 = IPv6(src='2001:db8:1f0::c0a8:1:f', - dst='1234:5678:90ab:cdef:ac:1001:200:0') - p6 = (p_ether6 / p_ip6 / payload) - p4_translated = (IP(src='192.168.0.1', - dst=self.pg0.remote_ip4) / payload) - p4_translated.id = 0 - p4_translated.ttl -= 1 - p4_translated[TCP].options = [('MSS', 1300)] - rx = self.send_and_expect(self.pg1, p6*1, self.pg0) - for p in rx: - self.validate(p[1], p4_translated) - - # TCP MSS clamping cleanup - self.vapi.map_param_set_tcp(0) - - # Enable icmp6 param to get back ICMPv6 unreachable messages in case - # of security check fails - self.vapi.map_param_set_icmp6(enable_unreachable=1) - - # Send back an IPv6 packet that will be droppped due to security - # check fail - p_ether6 = Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) - p_ip6_sec_check_fail = IPv6(src='2001:db8:1fe::c0a8:1:f', - dst='1234:5678:90ab:cdef:ac:1001:200:0') - payload = TCP(sport=0xabcd, dport=0xabcd) - p6 = (p_ether6 / p_ip6_sec_check_fail / payload) - - self.pg_send(self.pg1, p6*1) - self.pg0.get_capture(0, timeout=1) - rx = self.pg1.get_capture(1) - - icmp6_reply = (IPv6(hlim=255, src=self.pg1.local_ip6, - dst='2001:db8:1fe::c0a8:1:f') / - ICMPv6DestUnreach(code=5) / - p_ip6_sec_check_fail / payload) - - for p in rx: - self.validate(p[1], icmp6_reply) - - # ICMPv6 unreachable messages cleanup - self.vapi.map_param_set_icmp6(enable_unreachable=0) - - def test_map_t_ip6_psid(self): - """ MAP-T v6->v4 PSID validation""" - - # - # Add a domain that maps from pg0 to pg1 - # - map_dst = '2001:db8::/32' - map_src = '1234:5678:90ab:cdef::/64' - ip4_pfx = '192.168.0.0/24' - tag = 'MAP-T Test Domain' - - self.vapi.map_add_domain(ip6_prefix=map_dst, - ip4_prefix=ip4_pfx, - ip6_src=map_src, - ea_bits_len=16, - psid_offset=6, - psid_length=4, - mtu=1500, - tag=tag) - - # 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) - - map_route = VppIpRoute(self, - "2001:db8::", - 32, - [VppRoutePath(self.pg1.remote_ip6, - self.pg1.sw_if_index, - proto=DpoProto.DPO_PROTO_IP6)]) - map_route.add_vpp_config() - - p_ether6 = Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) - p_ip6 = IPv6(src='2001:db8:1f0::c0a8:1:f', - dst='1234:5678:90ab:cdef:ac:1001:200:0') - - # Send good IPv6 source port, ensure translated IPv4 received - payload = TCP(sport=0xabcd, dport=80) - p6 = (p_ether6 / p_ip6 / payload) - p4_translated = (IP(src='192.168.0.1', - dst=self.pg0.remote_ip4) / payload) - p4_translated.id = 0 - p4_translated.ttl -= 1 - rx = self.send_and_expect(self.pg1, p6*1, self.pg0) - for p in rx: - self.validate(p[1], p4_translated) - - # Send bad IPv6 source port, ensure translated IPv4 not received - payload = TCP(sport=0xdcba, dport=80) - p6 = (p_ether6 / p_ip6 / payload) - self.send_and_assert_no_replies(self.pg1, p6*1) - - def test_map_t_pre_resolve(self): - """ MAP-T pre-resolve""" - - # Add a domain that maps from pg0 to pg1 - map_dst = '2001:db8::/32' - map_src = '1234:5678:90ab:cdef::/64' - ip4_pfx = '192.168.0.0/24' - tag = 'MAP-T Test Domain.' - - self.vapi.map_add_domain(ip6_prefix=map_dst, - ip4_prefix=ip4_pfx, - ip6_src=map_src, - ea_bits_len=16, - psid_offset=6, - psid_length=4, - mtu=1500, - tag=tag) - - # 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) - - # Enable pre-resolve option - self.vapi.map_param_add_del_pre_resolve(ip4_nh_address="10.1.2.3", - ip6_nh_address="4001::1", - is_add=1) - - # Add a route to 4001::1 and expect the translated traffic to be - # sent via that route next-hop. - pre_res_route6 = VppIpRoute(self, "4001::1", 128, - [VppRoutePath(self.pg1.remote_hosts[2].ip6, - self.pg1.sw_if_index)]) - pre_res_route6.add_vpp_config() - - # Add a route to 10.1.2.3 and expect the "untranslated" traffic to be - # sent via that route next-hop. - pre_res_route4 = VppIpRoute(self, "10.1.2.3", 32, - [VppRoutePath(self.pg0.remote_hosts[1].ip4, - self.pg0.sw_if_index)]) - pre_res_route4.add_vpp_config() - - # Send an IPv4 packet that will be translated - p_ether = Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) - p_ip4 = IP(src=self.pg0.remote_ip4, dst='192.168.0.1') - payload = TCP(sport=0xabcd, dport=0xabcd) - p4 = (p_ether / p_ip4 / payload) - - p6_translated = (IPv6(src="1234:5678:90ab:cdef:ac:1001:200:0", - dst="2001:db8:1f0::c0a8:1:f") / payload) - p6_translated.hlim -= 1 - - rx = self.send_and_expect(self.pg0, p4*1, self.pg1) - for p in rx: - self.assertEqual(p[Ether].dst, self.pg1.remote_hosts[2].mac) - self.validate(p[1], p6_translated) - - # Send back an IPv6 packet that will be "untranslated" - p_ether6 = Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) - p_ip6 = IPv6(src='2001:db8:1f0::c0a8:1:f', - dst='1234:5678:90ab:cdef:ac:1001:200:0') - p6 = (p_ether6 / p_ip6 / payload) - - p4_translated = (IP(src='192.168.0.1', - dst=self.pg0.remote_ip4) / payload) - p4_translated.id = 0 - p4_translated.ttl -= 1 - - rx = self.send_and_expect(self.pg1, p6*1, self.pg0) - for p in rx: - self.assertEqual(p[Ether].dst, self.pg0.remote_hosts[1].mac) - self.validate(p[1], p4_translated) - - # Cleanup pre-resolve option - self.vapi.map_param_add_del_pre_resolve(ip4_nh_address="10.1.2.3", - ip6_nh_address="4001::1", - is_add=0) - - -if __name__ == '__main__': - unittest.main(testRunner=VppTestRunner) |