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authorNeale Ranns <nranns@cisco.com>2017-02-20 18:23:41 -0800
committerOle Trøan <otroan@employees.org>2017-03-09 13:24:11 +0000
commit8082380922c65702251d5242058f7b5f35011574 (patch)
tree5cc74ecd11ef619c4e1f6cfaf769c1d9fb3fed5f /test
parent37be73693a46b05360483778efee3313a71654f5 (diff)
MAP pre-resolve - use FIB to track pre-resolved next-hop
Change-Id: I9ea16881caf7aee57f0daf4ac2e8b82c672f87e9 Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'test')
-rw-r--r--test/test_map.py171
-rw-r--r--test/vpp_papi_provider.py28
2 files changed, 199 insertions, 0 deletions
diff --git a/test/test_map.py b/test/test_map.py
new file mode 100644
index 00000000000..bc6cd818c28
--- /dev/null
+++ b/test/test_map.py
@@ -0,0 +1,171 @@
+#!/usr/bin/env python
+
+import unittest
+import socket
+
+from framework import VppTestCase, VppTestRunner
+from vpp_ip_route import VppIpRoute, VppRoutePath
+
+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,
+ is_ip6=1)],
+ 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,
+ is_ip6=1)],
+ 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_route1 = VppIpRoute(self,
+ "4001::1",
+ 128,
+ [VppRoutePath(self.pg1.remote_hosts[3].ip6,
+ self.pg1.sw_if_index,
+ is_ip6=1)],
+ is_ip6=1)
+ pre_res_route1.add_vpp_config()
+
+ self.send_and_assert_encapped(v4, map_src,
+ "2001::c0a8:0:0",
+ dmac=self.pg1.remote_hosts[3].mac)
+
+if __name__ == '__main__':
+ unittest.main(testRunner=VppTestRunner)
diff --git a/test/vpp_papi_provider.py b/test/vpp_papi_provider.py
index 0062b72b62e..92070424be9 100644
--- a/test/vpp_papi_provider.py
+++ b/test/vpp_papi_provider.py
@@ -1624,3 +1624,31 @@ class VppPapiProvider(object):
{
'vni': vni
})
+
+ def map_add_domain(self,
+ ip6_prefix,
+ ip6_prefix_len,
+ ip6_src,
+ ip6_src_prefix_len,
+ ip4_prefix,
+ ip4_prefix_len,
+ ea_bits_len=0,
+ psid_offset=0,
+ psid_length=0,
+ is_translation=0,
+ mtu=1280):
+ return self.api(
+ self.papi.map_add_domain,
+ {
+ 'ip6_prefix': ip6_prefix,
+ 'ip6_prefix_len': ip6_prefix_len,
+ 'ip4_prefix': ip4_prefix,
+ 'ip4_prefix_len': ip4_prefix_len,
+ 'ip6_src': ip6_src,
+ 'ip6_src_prefix_len': ip6_src_prefix_len,
+ 'ea_bits_len': ea_bits_len,
+ 'psid_offset': psid_offset,
+ 'psid_length': psid_length,
+ 'is_translation': is_translation,
+ 'mtu': mtu
+ })