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-rw-r--r--src/plugins/map/test/test_map.py437
1 files changed, 437 insertions, 0 deletions
diff --git a/src/plugins/map/test/test_map.py b/src/plugins/map/test/test_map.py
new file mode 100644
index 00000000000..f1388b39c65
--- /dev/null
+++ b/src/plugins/map/test/test_map.py
@@ -0,0 +1,437 @@
+#!/usr/bin/env python
+
+import ipaddress
+import unittest
+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, 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()
+
+ # 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()
+
+ # 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, tx, ip6_src, ip6_dst, dmac=None):
+ if not dmac:
+ dmac = self.pg1.remote_mac
+
+ self.pg0.add_stream(tx)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg1.get_capture(1)
+ rx = rx[0]
+
+ 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 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 """
+
+ #
+ # Add a route to the MAP-BR
+ #
+ map_br_pfx = "2001::"
+ map_br_pfx_len = 64
+ 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::/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
+ #
+ 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('\xa5' * 100))
+
+ 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='3000::1', src="2001::1") /
+ IP(dst=self.pg0.remote_ip4, src='192.168.1.1') /
+ UDP(sport=20000, dport=10000) /
+ Raw('\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)
+
+ #
+ # 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(v4, "3000::1",
+ "2001::c0a8:0:0",
+ 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(v4, "3000::1",
+ "2001::c0a8:0:0",
+ 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 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)