from framework import VppTestCase, VppTestRunner
from vpp_sub_interface import VppDot1QSubint
from vpp_gre_interface import VppGreInterface, VppGre6Interface
-from vpp_ip_route import VppIpRoute, VppRoutePath, DpoProto, VppIpTable
+from vpp_ip import DpoProto
+from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpTable
from vpp_papi_provider import L2_VTR_OP
from scapy.packet import Raw
from util import ppp, ppc
+class GreTunnelTypes:
+ TT_L3 = 0
+ TT_TEB = 1
+ TT_ERSPAN = 2
+
+
class TestGRE(VppTestCase):
""" GRE Test Case """
self.logger.error(ppp("Tx:", tx))
raise
+ def verify_tunneled_4o6(self, src_if, capture, sent,
+ tunnel_src, tunnel_dst):
+
+ self.assertEqual(len(capture), len(sent))
+
+ for i in range(len(capture)):
+ try:
+ tx = sent[i]
+ rx = capture[i]
+
+ rx_ip = rx[IPv6]
+
+ self.assertEqual(rx_ip.src, tunnel_src)
+ self.assertEqual(rx_ip.dst, tunnel_dst)
+
+ rx_gre = GRE(str(rx_ip[IPv6].payload))
+ tx_ip = tx[IP]
+ rx_ip = rx_gre[IP]
+
+ self.assertEqual(rx_ip.src, tx_ip.src)
+ self.assertEqual(rx_ip.dst, tx_ip.dst)
+
+ except:
+ self.logger.error(ppp("Rx:", rx))
+ self.logger.error(ppp("Tx:", tx))
+ raise
+
+ def verify_tunneled_6o4(self, src_if, capture, sent,
+ tunnel_src, tunnel_dst):
+
+ self.assertEqual(len(capture), len(sent))
+
+ for i in range(len(capture)):
+ try:
+ tx = sent[i]
+ rx = capture[i]
+
+ rx_ip = rx[IP]
+
+ self.assertEqual(rx_ip.src, tunnel_src)
+ self.assertEqual(rx_ip.dst, tunnel_dst)
+
+ rx_gre = GRE(str(rx_ip[IP].payload))
+ rx_ip = rx_gre[IPv6]
+ tx_ip = tx[IPv6]
+
+ self.assertEqual(rx_ip.src, tx_ip.src)
+ self.assertEqual(rx_ip.dst, tx_ip.dst)
+
+ except:
+ self.logger.error(ppp("Rx:", rx))
+ self.logger.error(ppp("Tx:", tx))
+ raise
+
def verify_tunneled_l2o4(self, src_if, capture, sent,
tunnel_src, tunnel_dst):
self.assertEqual(len(capture), len(sent))
rx = self.pg0.get_capture(len(tx))
self.verify_decapped_6o4(self.pg0, rx, tx)
+ #
+ # Send v6 packets for v4 encap
+ #
+ route6_via_tun = VppIpRoute(
+ self, "2001::1", 128,
+ [VppRoutePath("::",
+ gre_if.sw_if_index,
+ proto=DpoProto.DPO_PROTO_IP6)],
+ is_ip6=1)
+ route6_via_tun.add_vpp_config()
+
+ tx = self.create_stream_ip6(self.pg0, "2001::2", "2001::1")
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+
+ self.verify_tunneled_6o4(self.pg0, rx, tx,
+ self.pg0.local_ip4, "1.1.1.2")
+
#
# test case cleanup
#
route_tun_dst.remove_vpp_config()
route_via_tun.remove_vpp_config()
+ route6_via_tun.remove_vpp_config()
gre_if.remove_vpp_config()
self.pg0.unconfig_ip6()
def test_gre6(self):
""" GRE IPv6 tunnel Tests """
+ self.pg1.config_ip6()
+ self.pg1.resolve_ndp()
+
#
# Create an L3 GRE tunnel.
# - set it admin up
self.verify_tunneled_6o6(self.pg2, rx, tx,
self.pg2.local_ip6, "1002::1")
+ #
+ # Test decap. decapped packets go out pg1
+ #
+ tx = self.create_tunnel_stream_6o6(self.pg2,
+ "1002::1",
+ self.pg2.local_ip6,
+ "2001::1",
+ self.pg1.remote_ip6)
+ self.vapi.cli("clear trace")
+ self.pg2.add_stream(tx)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ rx = self.pg1.get_capture(len(tx))
+
+ #
+ # RX'd packet is UDP over IPv6, test the GRE header is gone.
+ #
+ self.assertFalse(rx[0].haslayer(GRE))
+ self.assertEqual(rx[0][IPv6].dst, self.pg1.remote_ip6)
+
+ #
+ # Send v4 over v6
+ #
+ route4_via_tun = VppIpRoute(self, "1.1.1.1", 32,
+ [VppRoutePath("0.0.0.0",
+ gre_if.sw_if_index)])
+ route4_via_tun.add_vpp_config()
+
+ tx = self.create_stream_ip4(self.pg0, "1.1.1.2", "1.1.1.1")
+ rx = self.send_and_expect(self.pg0, tx, self.pg2)
+
+ self.verify_tunneled_4o6(self.pg0, rx, tx,
+ self.pg2.local_ip6, "1002::1")
+
#
# test case cleanup
#
route_tun_dst.remove_vpp_config()
route_via_tun.remove_vpp_config()
+ route4_via_tun.remove_vpp_config()
gre_if.remove_vpp_config()
self.pg2.unconfig_ip6()
+ self.pg1.unconfig_ip6()
def test_gre_vrf(self):
""" GRE tunnel VRF Tests """
rx = self.pg0.get_capture(len(tx))
self.verify_decapped_4o4(self.pg0, rx, tx)
+ #
+ # Send tunneled packets that match the created tunnel and
+ # but arrive on an interface that is not in the tunnel's
+ # encap VRF, these are dropped
+ #
+ self.vapi.cli("clear trace")
+ tx = self.create_tunnel_stream_4o4(self.pg2,
+ "2.2.2.2",
+ self.pg1.local_ip4,
+ self.pg0.local_ip4,
+ self.pg0.remote_ip4)
+ self.pg1.add_stream(tx)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ self.pg0.assert_nothing_captured(
+ remark="GRE decap packets in wrong VRF")
+
#
# test case cleanup
#
#
gre_if1 = VppGreInterface(self, self.pg0.local_ip4,
"2.2.2.2",
- is_teb=1)
+ type=GreTunnelTypes.TT_TEB)
gre_if2 = VppGreInterface(self, self.pg0.local_ip4,
"2.2.2.3",
- is_teb=1)
+ type=GreTunnelTypes.TT_TEB)
gre_if1.add_vpp_config()
gre_if2.add_vpp_config()
Code Review / vpp.git / blobdiff