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Diffstat (limited to 'test/test_map.py')
| -rw-r--r-- | test/test_map.py | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/test/test_map.py b/test/test_map.py new file mode 100644 index 00000000..bbf4aec2 --- /dev/null +++ b/test/test_map.py @@ -0,0 +1,173 @@ +#!/usr/bin/env python + +import unittest +import socket + +from framework import VppTestCase, VppTestRunner +from vpp_ip_route import VppIpRoute, VppRoutePath, DpoProto + +from scapy.layers.l2 import Ether, Raw +from scapy.layers.inet import IP, UDP, ICMP +from scapy.layers.inet6 import IPv6 + + +class TestMAP(VppTestCase): + """ MAP Test Case """ + + 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_no_replies(self, intf, pkts, remark): + intf.add_stream(pkts) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + for i in self.pg_interfaces: + i.assert_nothing_captured(remark=remark) + + 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_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, + proto=DpoProto.DPO_PROTO_IP6)], + is_ip6=1) + 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) + + # + # 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, map_src, "2001::c0a8:0:0") + + # + # 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") / + 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, + "resovled 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.add_vpp_config() + + self.send_and_assert_encapped(v4, map_src, + "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, + proto=DpoProto.DPO_PROTO_IP6)]) + pre_res_route.add_vpp_config() + + self.send_and_assert_encapped(v4, map_src, + "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") + +if __name__ == '__main__': + unittest.main(testRunner=VppTestRunner) |