+++ /dev/null
-#!/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)
Code Review / vpp.git / blobdiff