+ def test_mgre(self):
+ """ mGRE IPv4 tunnel Tests """
+
+ for itf in self.pg_interfaces[3:]:
+ #
+ # one underlay nh for each overlay/tunnel peer
+ #
+ itf.generate_remote_hosts(4)
+ itf.configure_ipv4_neighbors()
+
+ #
+ # Create an L3 GRE tunnel.
+ # - set it admin up
+ # - assign an IP Addres
+ # - Add a route via the tunnel
+ #
+ gre_if = VppGreInterface(self,
+ itf.local_ip4,
+ "0.0.0.0",
+ mode=(VppEnum.vl_api_tunnel_mode_t.
+ TUNNEL_API_MODE_MP))
+ gre_if.add_vpp_config()
+ gre_if.admin_up()
+ gre_if.config_ip4()
+ gre_if.generate_remote_hosts(4)
+
+ self.logger.info(self.vapi.cli("sh adj"))
+ self.logger.info(self.vapi.cli("sh ip fib"))
+
+ #
+ # ensure we don't match to the tunnel if the source address
+ # is all zeros
+ #
+ tx = self.create_tunnel_stream_4o4(self.pg0,
+ "0.0.0.0",
+ itf.local_ip4,
+ self.pg0.local_ip4,
+ self.pg0.remote_ip4)
+ self.send_and_assert_no_replies(self.pg0, tx)
+
+ #
+ # for-each peer
+ #
+ for ii in range(1, 4):
+ route_addr = "4.4.4.%d" % ii
+
+ #
+ # route traffic via the peer
+ #
+ route_via_tun = VppIpRoute(
+ self, route_addr, 32,
+ [VppRoutePath(gre_if._remote_hosts[ii].ip4,
+ gre_if.sw_if_index)])
+ route_via_tun.add_vpp_config()
+
+ #
+ # Add a TEIB entry resolves the peer
+ #
+ teib = VppTeib(self, gre_if,
+ gre_if._remote_hosts[ii].ip4,
+ itf._remote_hosts[ii].ip4)
+ teib.add_vpp_config()
+
+ #
+ # Send a packet stream that is routed into the tunnel
+ # - packets are GRE encapped
+ #
+ tx_e = self.create_stream_ip4(self.pg0, "5.5.5.5", route_addr)
+ rx = self.send_and_expect(self.pg0, tx_e, itf)
+ self.verify_tunneled_4o4(self.pg0, rx, tx_e,
+ itf.local_ip4,
+ itf._remote_hosts[ii].ip4)
+
+ tx_i = self.create_tunnel_stream_4o4(self.pg0,
+ itf._remote_hosts[ii].ip4,
+ itf.local_ip4,
+ self.pg0.local_ip4,
+ self.pg0.remote_ip4)
+ rx = self.send_and_expect(self.pg0, tx_i, self.pg0)
+ self.verify_decapped_4o4(self.pg0, rx, tx_i)
+
+ #
+ # delete and re-add the TEIB
+ #
+ teib.remove_vpp_config()
+ self.send_and_assert_no_replies(self.pg0, tx_e)
+ self.send_and_assert_no_replies(self.pg0, tx_i)
+
+ teib.add_vpp_config()
+ rx = self.send_and_expect(self.pg0, tx_e, itf)
+ self.verify_tunneled_4o4(self.pg0, rx, tx_e,
+ itf.local_ip4,
+ itf._remote_hosts[ii].ip4)
+ rx = self.send_and_expect(self.pg0, tx_i, self.pg0)
+ self.verify_decapped_4o4(self.pg0, rx, tx_i)
+
+ gre_if.admin_down()
+ gre_if.unconfig_ip4()
+
+ def test_mgre6(self):
+ """ mGRE IPv6 tunnel Tests """
+
+ self.pg0.config_ip6()
+ self.pg0.resolve_ndp()
+
+ e = VppEnum.vl_api_tunnel_encap_decap_flags_t
+
+ for itf in self.pg_interfaces[3:]:
+ #
+ # one underlay nh for each overlay/tunnel peer
+ #
+ itf.config_ip6()
+ itf.generate_remote_hosts(4)
+ itf.configure_ipv6_neighbors()
+
+ #
+ # Create an L3 GRE tunnel.
+ # - set it admin up
+ # - assign an IP Addres
+ # - Add a route via the tunnel
+ #
+ gre_if = VppGreInterface(
+ self,
+ itf.local_ip6,
+ "::",
+ mode=(VppEnum.vl_api_tunnel_mode_t.
+ TUNNEL_API_MODE_MP),
+ flags=e.TUNNEL_API_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
+
+ gre_if.add_vpp_config()
+ gre_if.admin_up()
+ gre_if.config_ip6()
+ gre_if.generate_remote_hosts(4)
+
+ #
+ # for-each peer
+ #
+ for ii in range(1, 4):
+ route_addr = "4::%d" % ii
+
+ #
+ # Add a TEIB entry resolves the peer
+ #
+ teib = VppTeib(self, gre_if,
+ gre_if._remote_hosts[ii].ip6,
+ itf._remote_hosts[ii].ip6)
+ teib.add_vpp_config()
+
+ #
+ # route traffic via the peer
+ #
+ route_via_tun = VppIpRoute(
+ self, route_addr, 128,
+ [VppRoutePath(gre_if._remote_hosts[ii].ip6,
+ gre_if.sw_if_index)])
+ route_via_tun.add_vpp_config()
+
+ #
+ # Send a packet stream that is routed into the tunnel
+ # - packets are GRE encapped
+ #
+ tx_e = self.create_stream_ip6(self.pg0, "5::5", route_addr,
+ dscp=2, ecn=1)
+ rx = self.send_and_expect(self.pg0, tx_e, itf)
+ self.verify_tunneled_6o6(self.pg0, rx, tx_e,
+ itf.local_ip6,
+ itf._remote_hosts[ii].ip6,
+ dscp=2)
+ tx_i = self.create_tunnel_stream_6o6(self.pg0,
+ itf._remote_hosts[ii].ip6,
+ itf.local_ip6,
+ self.pg0.local_ip6,
+ self.pg0.remote_ip6)
+ rx = self.send_and_expect(self.pg0, tx_i, self.pg0)
+ self.verify_decapped_6o6(self.pg0, rx, tx_i)
+
+ #
+ # delete and re-add the TEIB
+ #
+ teib.remove_vpp_config()
+ self.send_and_assert_no_replies(self.pg0, tx_e)
+
+ teib.add_vpp_config()
+ rx = self.send_and_expect(self.pg0, tx_e, itf)
+ self.verify_tunneled_6o6(self.pg0, rx, tx_e,
+ itf.local_ip6,
+ itf._remote_hosts[ii].ip6,
+ dscp=2)
+ rx = self.send_and_expect(self.pg0, tx_i, self.pg0)
+ self.verify_decapped_6o6(self.pg0, rx, tx_i)
+
+ gre_if.admin_down()
+ gre_if.unconfig_ip4()
+ itf.unconfig_ip6()
+ self.pg0.unconfig_ip6()
+