import unittest
from scapy.layers.inet6 import IPv6, Ether, IP, UDP, IPv6ExtHdrFragment, Raw
+from scapy.contrib.mpls import MPLS
from scapy.all import fragment, fragment6, RandShort, defragment6
from framework import VppTestCase, VppTestRunner
from vpp_ip import DpoProto
-from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpTable, FibPathProto
+from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpTable, FibPathProto, \
+ VppMplsLabel, VppMplsRoute, VppMplsTable
from vpp_ipip_tun_interface import VppIpIpTunInterface
from vpp_teib import VppTeib
from vpp_papi import VppEnum
p6_reply.id = 256
self.validate(reass_pkt, p6_reply)
+ def test_ip6_mpls_frag(self):
+ """ Test fragmenting IPv6 over MPLS """
+
+ # IPv6 packets must be locally generated to be fragmented
+ # the use of tunnel encaps
+ tun_dst = VppIpRoute(
+ self, "1000::1", 128,
+ [VppRoutePath(self.pg1.remote_ip6,
+ self.pg1.sw_if_index,
+ labels=[VppMplsLabel(32)])]).add_vpp_config()
+
+ tun = VppIpIpTunInterface(
+ self,
+ self.pg0,
+ self.pg0.local_ip6,
+ "1000::1").add_vpp_config()
+
+ tun.admin_up()
+ tun.config_ip6()
+ tun.config_ip4()
+
+ self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index,
+ [2000, 0, 0, 0])
+
+ p_6k = (Ether(dst=self.pg0.local_mac,
+ src=self.pg0.remote_mac) /
+ IPv6(src=self.pg0.remote_ip6,
+ dst=tun.remote_ip6) /
+ UDP(sport=1234, dport=5678) /
+ Raw(b'0xa' * 2000))
+ p_2k = (Ether(dst=self.pg0.local_mac,
+ src=self.pg0.remote_mac) /
+ IPv6(src=self.pg0.remote_ip6,
+ dst=tun.remote_ip6) /
+ UDP(sport=1234, dport=5678) /
+ Raw(b'0xa' * 1000))
+ p_1k = (Ether(dst=self.pg0.local_mac,
+ src=self.pg0.remote_mac) /
+ IPv6(src=self.pg0.remote_ip6,
+ dst=tun.remote_ip6) /
+ UDP(sport=1234, dport=5678) /
+ Raw(b'0xa' * 600))
+
+ # this is now the interface MTU frags
+ rxs = self.send_and_expect(self.pg0, [p_6k], self.pg1, n_rx=4)
+ self.assertEqual(rxs[0][UDP].dport, 5678)
+ for rx in rxs:
+ self.assertEqual(rx[MPLS].label, 32)
+ self.assertEqual(rx[IPv6].dst, "1000::1")
+ self.assertEqual(rx[IPv6].dst, "1000::1")
+ self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=2)
+ self.send_and_expect(self.pg0, [p_1k], self.pg1)
+
def test_ipip_create(self):
""" ipip create / delete interface test """
rv = ipip_add_tunnel(self, '1.2.3.4', '2.3.4.5')
return 'x' * len
+class TestIPIPMPLS(VppTestCase):
+ """ MPLS Test Case """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPIPMPLS, cls).setUpClass()
+ cls.create_pg_interfaces(range(2))
+ cls.interfaces = list(cls.pg_interfaces)
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPIPMPLS, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIPIPMPLS, self).setUp()
+ for i in self.interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.config_ip6()
+ i.disable_ipv6_ra()
+ i.resolve_arp()
+ i.resolve_ndp()
+
+ def tearDown(self):
+ super(TestIPIPMPLS, self).tearDown()
+
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.unconfig_ip6()
+ i.admin_down()
+
+ def test_mpls(self):
+ """ MPLS over ip{6,4} test """
+
+ tbl = VppMplsTable(self, 0)
+ tbl.add_vpp_config()
+
+ self.p_ether = Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
+ self.p_payload = UDP(sport=1234, dport=1234) / Raw(b'X' * 100)
+ f = FibPathProto
+
+ # IPv4 transport
+ tun4 = VppIpIpTunInterface(
+ self,
+ self.pg1,
+ self.pg1.local_ip4,
+ self.pg1.remote_ip4).add_vpp_config()
+ tun4.admin_up()
+ tun4.config_ip4()
+ tun4.enable_mpls()
+
+ # IPv6 transport
+ tun6 = VppIpIpTunInterface(
+ self,
+ self.pg1,
+ self.pg1.local_ip6,
+ self.pg1.remote_ip6).add_vpp_config()
+ tun6.admin_up()
+ tun6.config_ip6()
+ tun6.enable_mpls()
+
+ # ip routes into the tunnels with output labels
+ r4 = VppIpRoute(self, "1.1.1.1", 32,
+ [VppRoutePath(
+ tun4.remote_ip4,
+ tun4.sw_if_index,
+ labels=[VppMplsLabel(44)])]).add_vpp_config()
+ r6 = VppIpRoute(self, "1::1", 128,
+ [VppRoutePath(
+ tun6.remote_ip6,
+ tun6.sw_if_index,
+ labels=[VppMplsLabel(66)])]).add_vpp_config()
+
+ # deag MPLS routes from the tunnel
+ r4 = VppMplsRoute(self, 44, 1,
+ [VppRoutePath(
+ self.pg0.remote_ip4,
+ self.pg0.sw_if_index)]).add_vpp_config()
+ r6 = VppMplsRoute(self, 66, 1,
+ [VppRoutePath(
+ self.pg0.remote_ip6,
+ self.pg0.sw_if_index)],
+ eos_proto=f.FIB_PATH_NH_PROTO_IP6).add_vpp_config()
+
+ #
+ # Tunnel Encap
+ #
+ p4 = (self.p_ether / IP(src="2.2.2.2", dst="1.1.1.1") / self.p_payload)
+
+ rxs = self.send_and_expect(self.pg0, p4 * N_PACKETS, self.pg1)
+
+ for rx in rxs:
+ self.assertEqual(rx[IP].src, self.pg1.local_ip4)
+ self.assertEqual(rx[IP].dst, self.pg1.remote_ip4)
+ self.assertEqual(rx[MPLS].label, 44)
+ inner = rx[MPLS].payload
+ self.assertEqual(inner.src, "2.2.2.2")
+ self.assertEqual(inner.dst, "1.1.1.1")
+
+ p6 = (self.p_ether / IPv6(src="2::2", dst="1::1") / self.p_payload)
+
+ rxs = self.send_and_expect(self.pg0, p6 * N_PACKETS, self.pg1)
+
+ for rx in rxs:
+ self.assertEqual(rx[IPv6].src, self.pg1.local_ip6)
+ self.assertEqual(rx[IPv6].dst, self.pg1.remote_ip6)
+ self.assertEqual(rx[MPLS].label, 66)
+ inner = rx[MPLS].payload
+ self.assertEqual(inner.src, "2::2")
+ self.assertEqual(inner.dst, "1::1")
+
+ #
+ # Tunnel Decap
+ #
+ p4 = (self.p_ether /
+ IP(src=self.pg1.remote_ip4,
+ dst=self.pg1.local_ip4) /
+ MPLS(label=44, ttl=4) /
+ IP(src="1.1.1.1",
+ dst="2.2.2.2") /
+ self.p_payload)
+
+ rxs = self.send_and_expect(self.pg1, p4 * N_PACKETS, self.pg0)
+
+ for rx in rxs:
+ self.assertEqual(rx[IP].src, "1.1.1.1")
+ self.assertEqual(rx[IP].dst, "2.2.2.2")
+
+ p6 = (self.p_ether /
+ IPv6(src=self.pg1.remote_ip6,
+ dst=self.pg1.local_ip6) /
+ MPLS(label=66, ttl=4) /
+ IPv6(src="1::1",
+ dst="2::2") /
+ self.p_payload)
+
+ rxs = self.send_and_expect(self.pg1, p6 * N_PACKETS, self.pg0)
+
+ for rx in rxs:
+ self.assertEqual(rx[IPv6].src, "1::1")
+ self.assertEqual(rx[IPv6].dst, "2::2")
+
+ tun4.disable_mpls()
+ tun6.disable_mpls()
+
+
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)
Code Review / vpp.git / blobdiff