+import util
+from vpp_ip_route import VppIpRoute, VppRoutePath
+from vpp_ip import INVALID_INDEX
+
+
+@tag_fixme_vpp_workers
+class TestGtpuUDP(VppTestCase):
+ """GTPU UDP ports Test Case"""
+
+ def setUp(self):
+ super(TestGtpuUDP, self).setUp()
+
+ self.dport = 2152
+
+ self.ip4_err = 0
+ self.ip6_err = 0
+
+ self.create_pg_interfaces(range(1))
+ for pg in self.pg_interfaces:
+ pg.admin_up()
+ self.pg0.config_ip4()
+ self.pg0.config_ip6()
+
+ def _check_udp_port_ip4(self, enabled=True):
+
+ pkt = (
+ Ether(src=self.pg0.local_mac, dst=self.pg0.remote_mac)
+ / IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4)
+ / UDP(sport=self.dport, dport=self.dport, chksum=0)
+ )
+
+ self.pg0.add_stream(pkt)
+ self.pg_start()
+
+ err = self.statistics.get_counter("/err/ip4-udp-lookup/no_listener")[0]
+
+ if enabled:
+ self.assertEqual(err, self.ip4_err)
+ else:
+ self.assertEqual(err, self.ip4_err + 1)
+
+ self.ip4_err = err
+
+ def _check_udp_port_ip6(self, enabled=True):
+
+ pkt = (
+ Ether(src=self.pg0.local_mac, dst=self.pg0.remote_mac)
+ / IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6)
+ / UDP(sport=self.dport, dport=self.dport, chksum=0)
+ )
+
+ self.pg0.add_stream(pkt)
+ self.pg_start()
+
+ err = self.statistics.get_counter("/err/ip6-udp-lookup/no_listener")[0]
+
+ if enabled:
+ self.assertEqual(err, self.ip6_err)
+ else:
+ self.assertEqual(err, self.ip6_err + 1)
+
+ self.ip6_err = err
+
+ def test_udp_port(self):
+ """test UDP ports
+ Check if there are no udp listeners before gtpu is enabled
+ """
+ # UDP ports should be disabled unless a tunnel is configured
+ self._check_udp_port_ip4(False)
+ self._check_udp_port_ip6(False)
+
+ r = self.vapi.gtpu_add_del_tunnel(
+ is_add=True,
+ mcast_sw_if_index=0xFFFFFFFF,
+ decap_next_index=0xFFFFFFFF,
+ src_address=self.pg0.local_ip4,
+ dst_address=self.pg0.remote_ip4,
+ )
+
+ # UDP port 2152 enabled for ip4
+ self._check_udp_port_ip4()
+
+ r = self.vapi.gtpu_add_del_tunnel(
+ is_add=True,
+ mcast_sw_if_index=0xFFFFFFFF,
+ decap_next_index=0xFFFFFFFF,
+ src_address=self.pg0.local_ip6,
+ dst_address=self.pg0.remote_ip6,
+ )
+
+ # UDP port 2152 enabled for ip6
+ self._check_udp_port_ip6()
+
+ r = self.vapi.gtpu_add_del_tunnel(
+ is_add=False,
+ mcast_sw_if_index=0xFFFFFFFF,
+ decap_next_index=0xFFFFFFFF,
+ src_address=self.pg0.local_ip4,
+ dst_address=self.pg0.remote_ip4,
+ )
+
+ r = self.vapi.gtpu_add_del_tunnel(
+ is_add=False,
+ mcast_sw_if_index=0xFFFFFFFF,
+ decap_next_index=0xFFFFFFFF,
+ src_address=self.pg0.local_ip6,
+ dst_address=self.pg0.remote_ip6,
+ )
+