X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=test%2Ftest_map.py;h=f1388b39c65fdb42ccb0a653d59bb7407501af0d;hb=097fa66b9;hp=1a53492f1365ae234d31bb79ceb1f94b8bb131b4;hpb=c0a93143412b4be7bba087bf633855aeeaee7c56;p=vpp.git diff --git a/test/test_map.py b/test/test_map.py index 1a53492f136..f1388b39c65 100644 --- a/test/test_map.py +++ b/test/test_map.py @@ -1,20 +1,30 @@ #!/usr/bin/env python +import ipaddress import unittest -import socket +from ipaddress import IPv6Network, IPv4Network from framework import VppTestCase, VppTestRunner from vpp_ip import DpoProto from vpp_ip_route import VppIpRoute, VppRoutePath +import scapy.compat from scapy.layers.l2 import Ether, Raw -from scapy.layers.inet import IP, UDP, ICMP -from scapy.layers.inet6 import IPv6 +from scapy.layers.inet import IP, UDP, ICMP, TCP, fragment +from scapy.layers.inet6 import IPv6, ICMPv6TimeExceeded 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() @@ -56,6 +66,34 @@ class TestMAP(VppTestCase): self.assertEqual(rx[IPv6].src, ip6_src) self.assertEqual(rx[IPv6].dst, ip6_dst) + 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 test_map_e(self): """ MAP-E """ @@ -68,25 +106,36 @@ class TestMAP(VppTestCase): map_br_pfx, map_br_pfx_len, [VppRoutePath(self.pg1.remote_ip6, - self.pg1.sw_if_index, - proto=DpoProto.DPO_PROTO_IP6)], - is_ip6=1) + self.pg1.sw_if_index)]) map_route.add_vpp_config() # # Add a domain that maps from pg0 to pg1 # - map_dst = socket.inet_pton(socket.AF_INET6, map_br_pfx) - map_src = "3001::1" - map_src_n = socket.inet_pton(socket.AF_INET6, map_src) - client_pfx = socket.inet_pton(socket.AF_INET, "192.168.0.0") - - self.vapi.map_add_domain(map_dst, - map_br_pfx_len, - map_src_n, - 128, - client_pfx, - 16) + map_dst = '2001::/64' + map_src = '3000::1/128' + client_pfx = '192.168.0.0/16' + tag = 'MAP-E tag.' + self.vapi.map_add_domain(ip4_prefix=client_pfx, + ip6_prefix=map_dst, + ip6_src=map_src, + 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) + + # 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('\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) # # Fire in a v4 packet that will be encapped to the BR @@ -96,14 +145,30 @@ class TestMAP(VppTestCase): UDP(sport=20000, dport=10000) / Raw('\xa5' * 100)) - self.send_and_assert_encapped(v4, map_src, "2001::c0a8:0:0") + self.send_and_assert_encapped(v4, "3000::1", "2001::c0a8:0:0") + + # 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('\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=map_src, src="2001::1") / + IPv6(dst='3000::1', src="2001::1") / IP(dst=self.pg0.remote_ip4, src='192.168.1.1') / UDP(sport=20000, dport=10000) / Raw('\xa5' * 100)) @@ -126,21 +191,18 @@ class TestMAP(VppTestCase): self.vapi.ppcli("map params pre-resolve ip6-nh 4001::1") self.send_and_assert_no_replies(self.pg0, v4, - "resovled via default route") + "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, - proto=DpoProto.DPO_PROTO_IP6)], - is_ip6=1) + 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(v4, map_src, + self.send_and_assert_encapped(v4, "3000::1", "2001::c0a8:0:0", dmac=self.pg1.remote_hosts[2].mac) @@ -148,11 +210,10 @@ class TestMAP(VppTestCase): # 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, - proto=DpoProto.DPO_PROTO_IP6)]) + self.pg1.sw_if_index)]) pre_res_route.add_vpp_config() - self.send_and_assert_encapped(v4, map_src, + self.send_and_assert_encapped(v4, "3000::1", "2001::c0a8:0:0", dmac=self.pg1.remote_hosts[3].mac) @@ -163,5 +224,214 @@ class TestMAP(VppTestCase): pre_res_route.remove_vpp_config() self.vapi.ppcli("map params pre-resolve del ip6-nh 4001::1") + def validate(self, rx, expected): + self.assertEqual(rx, expected.__class__(scapy.compat.raw(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('\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('\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 + 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) + + ''' + This one is broken, cause it would require hairpinning... + # IPv4 TTL TTL1 + 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=0) / 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 + 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) + + # Packet fragmentation + payload = UDP(sport=40000, dport=4000) / self.payload(1453) + p4 = (p_ether / p_ip4 / payload) + self.pg_enable_capture() + self.pg0.add_stream(p4) + self.pg_start() + rx = self.pg1.get_capture(2) + for p in rx: + pass + # TODO: Manual validation + # self.validate(p[1], icmp4_reply) + + # Packet fragmentation send fragments + payload = UDP(sport=40000, dport=4000) / self.payload(1453) + p4 = (p_ether / p_ip4 / payload) + frags = fragment(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: + pass + # p.show2() + # reass_pkt = reassemble(rx) + # p4_reply.ttl -= 1 + # p4_reply.id = 256 + # self.validate(reass_pkt, p4_reply) + + # 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) + + if __name__ == '__main__': unittest.main(testRunner=VppTestRunner)