X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=test%2Ftest_gtpu.py;h=fd97205ac634d8bad734cf6fd8acc3798166bcc0;hb=cc1475cdc2bddeac5237012dae1c19278ee5346c;hp=26c292af8680a9026689303e3fa9beec4951a236;hpb=8feeaff56fa9a4fbdfc06131f28a1060ffd9645d;p=vpp.git diff --git a/test/test_gtpu.py b/test/test_gtpu.py index 26c292af868..fd97205ac63 100644 --- a/test/test_gtpu.py +++ b/test/test_gtpu.py @@ -1,19 +1,126 @@ -#!/usr/bin/env python +#!/usr/bin/env python3 -import socket -from util import ip4n_range, ip4_range +from util import ip4_range import unittest -from framework import VppTestCase, VppTestRunner +from framework import VppTestCase +from asfframework import VppTestRunner, tag_fixme_vpp_workers from template_bd import BridgeDomain -from scapy.layers.l2 import Ether, Raw +from scapy.layers.l2 import Ether from scapy.layers.inet import IP, UDP +from scapy.layers.inet6 import IPv6 from scapy.contrib.gtp import GTP_U_Header -from scapy.utils import atol + +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, + ) class TestGtpu(BridgeDomain, VppTestCase): - """ GTPU Test Case """ + """GTPU Test Case""" def __init__(self, *args): BridgeDomain.__init__(self) @@ -24,14 +131,16 @@ class TestGtpu(BridgeDomain, VppTestCase): Encapsulate the original payload frame by adding GTPU header with its UDP, IP and Ethernet fields """ - return (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / - IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) / - UDP(sport=self.dport, dport=self.dport, chksum=0) / - GTP_U_Header(teid=vni, gtp_type=self.gtp_type, length=150) / - pkt) + return ( + Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) + / IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) + / UDP(sport=self.dport, dport=self.dport, chksum=0) + / GTP_U_Header(teid=vni, gtp_type=self.gtp_type, length=150) + / pkt + ) def ip_range(self, start, end): - """ range of remote ip's """ + """range of remote ip's""" return ip4_range(self.pg0.remote_ip4, start, end) def encap_mcast(self, pkt, src_ip, src_mac, vni): @@ -39,11 +148,13 @@ class TestGtpu(BridgeDomain, VppTestCase): Encapsulate the original payload frame by adding GTPU header with its UDP, IP and Ethernet fields """ - return (Ether(src=src_mac, dst=self.mcast_mac) / - IP(src=src_ip, dst=self.mcast_ip4) / - UDP(sport=self.dport, dport=self.dport, chksum=0) / - GTP_U_Header(teid=vni, gtp_type=self.gtp_type, length=150) / - pkt) + return ( + Ether(src=src_mac, dst=self.mcast_mac) + / IP(src=src_ip, dst=self.mcast_ip4) + / UDP(sport=self.dport, dport=self.dport, chksum=0) + / GTP_U_Header(teid=vni, gtp_type=self.gtp_type, length=150) + / pkt + ) def decapsulate(self, pkt): """ @@ -76,7 +187,7 @@ class TestGtpu(BridgeDomain, VppTestCase): self.assertEqual(pkt[GTP_U_Header].teid, vni) def test_encap(self): - """ Encapsulation test + """Encapsulation test Send frames from pg1 Verify receipt of encapsulated frames on pg0 """ @@ -89,13 +200,13 @@ class TestGtpu(BridgeDomain, VppTestCase): # Pick first received frame and check if it's correctly encapsulated. out = self.pg0.get_capture(1) pkt = out[0] - self.check_encapsulation(pkt, self.single_tunnel_bd) + self.check_encapsulation(pkt, self.single_tunnel_vni) # payload = self.decapsulate(pkt) # self.assert_eq_pkts(payload, self.frame_reply) def test_ucast_flood(self): - """ Unicast flood test + """Unicast flood test Send frames from pg3 Verify receipt of encapsulated frames on pg0 """ @@ -113,7 +224,7 @@ class TestGtpu(BridgeDomain, VppTestCase): # self.assert_eq_pkts(payload, self.frame_reply) def test_mcast_flood(self): - """ Multicast flood test + """Multicast flood test Send frames from pg2 Verify receipt of encapsulated frames on pg0 """ @@ -126,8 +237,9 @@ class TestGtpu(BridgeDomain, VppTestCase): # Pick first received frame and check if it's correctly encapsulated. out = self.pg0.get_capture(1) pkt = out[0] - self.check_encapsulation(pkt, self.mcast_flood_bd, - local_only=False, mcast_pkt=True) + self.check_encapsulation( + pkt, self.mcast_flood_bd, local_only=False, mcast_pkt=True + ) # payload = self.decapsulate(pkt) # self.assert_eq_pkts(payload, self.frame_reply) @@ -137,19 +249,28 @@ class TestGtpu(BridgeDomain, VppTestCase): # Create 10 ucast gtpu tunnels under bd ip_range_start = 10 ip_range_end = ip_range_start + n_ucast_tunnels - next_hop_address = cls.pg0.remote_ip4n - for dest_ip4n in ip4n_range(next_hop_address, ip_range_start, - ip_range_end): - # add host route so dest_ip4n will not be resolved - cls.vapi.ip_add_del_route(dst_address=dest_ip4n, - dst_address_length=32, - next_hop_address=next_hop_address) + next_hop_address = cls.pg0.remote_ip4 + for dest_ip4 in ip4_range(next_hop_address, ip_range_start, ip_range_end): + # add host route so dest_ip4 will not be resolved + rip = VppIpRoute( + cls, + dest_ip4, + 32, + [VppRoutePath(next_hop_address, INVALID_INDEX)], + register=False, + ) + rip.add_vpp_config() r = cls.vapi.gtpu_add_del_tunnel( - src_addr=cls.pg0.local_ip4n, - dst_addr=dest_ip4n, - teid=teid) - cls.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index, - bd_id=teid) + is_add=True, + mcast_sw_if_index=0xFFFFFFFF, + decap_next_index=0xFFFFFFFF, + src_address=cls.pg0.local_ip4, + dst_address=dest_ip4, + teid=teid, + ) + cls.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=r.sw_if_index, bd_id=teid + ) @classmethod def add_del_shared_mcast_dst_load(cls, is_add): @@ -162,12 +283,14 @@ class TestGtpu(BridgeDomain, VppTestCase): teid_end = teid_start + n_shared_dst_tunnels for teid in range(teid_start, teid_end): r = cls.vapi.gtpu_add_del_tunnel( - src_addr=cls.pg0.local_ip4n, - dst_addr=cls.mcast_ip4n, + decap_next_index=0xFFFFFFFF, + src_address=cls.pg0.local_ip4, + dst_address=cls.mcast_ip4, mcast_sw_if_index=1, teid=teid, - is_add=is_add) - if r.sw_if_index == 0xffffffff: + is_add=is_add, + ) + if r.sw_if_index == 0xFFFFFFFF: raise ValueError("bad sw_if_index: ~0") @classmethod @@ -186,15 +309,16 @@ class TestGtpu(BridgeDomain, VppTestCase): n_distinct_dst_tunnels = 20 ip_range_start = 10 ip_range_end = ip_range_start + n_distinct_dst_tunnels - for dest_ip4n in ip4n_range(cls.mcast_ip4n, ip_range_start, - ip_range_end): - teid = bytearray(dest_ip4n)[3] + for dest_ip4 in ip4_range(cls.mcast_ip4, ip_range_start, ip_range_end): + teid = int(dest_ip4.split(".")[3]) cls.vapi.gtpu_add_del_tunnel( - src_addr=cls.pg0.local_ip4n, - dst_addr=dest_ip4n, + decap_next_index=0xFFFFFFFF, + src_address=cls.pg0.local_ip4, + dst_address=dest_ip4, mcast_sw_if_index=1, teid=teid, - is_add=is_add) + is_add=is_add, + ) @classmethod def add_mcast_tunnels_load(cls): @@ -215,7 +339,7 @@ class TestGtpu(BridgeDomain, VppTestCase): try: cls.dport = 2152 - cls.gtp_type = 0xff + cls.gtp_type = 0xFF # Create 2 pg interfaces. cls.create_pg_interfaces(range(4)) @@ -229,38 +353,46 @@ class TestGtpu(BridgeDomain, VppTestCase): cls.pg0.resolve_arp() # Our Multicast address - cls.mcast_ip4 = '239.1.1.1' - cls.mcast_ip4n = socket.inet_pton(socket.AF_INET, cls.mcast_ip4) - iplong = atol(cls.mcast_ip4) - cls.mcast_mac = "01:00:5e:%02x:%02x:%02x" % ( - (iplong >> 16) & 0x7F, (iplong >> 8) & 0xFF, iplong & 0xFF) + cls.mcast_ip4 = "239.1.1.1" + cls.mcast_mac = util.mcast_ip_to_mac(cls.mcast_ip4) # Create GTPU VTEP on VPP pg0, and put gtpu_tunnel0 and pg1 # into BD. cls.single_tunnel_bd = 11 + cls.single_tunnel_vni = 11 r = cls.vapi.gtpu_add_del_tunnel( - src_addr=cls.pg0.local_ip4n, - dst_addr=cls.pg0.remote_ip4n, - teid=cls.single_tunnel_bd) - cls.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index, - bd_id=cls.single_tunnel_bd) + is_add=True, + mcast_sw_if_index=0xFFFFFFFF, + decap_next_index=0xFFFFFFFF, + src_address=cls.pg0.local_ip4, + dst_address=cls.pg0.remote_ip4, + teid=cls.single_tunnel_vni, + ) cls.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=cls.pg1.sw_if_index, bd_id=cls.single_tunnel_bd) + rx_sw_if_index=r.sw_if_index, bd_id=cls.single_tunnel_bd + ) + cls.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=cls.pg1.sw_if_index, bd_id=cls.single_tunnel_bd + ) # Setup teid 2 to test multicast flooding cls.n_ucast_tunnels = 10 cls.mcast_flood_bd = 12 - cls.create_gtpu_flood_test_bd(cls.mcast_flood_bd, - cls.n_ucast_tunnels) + cls.create_gtpu_flood_test_bd(cls.mcast_flood_bd, cls.n_ucast_tunnels) r = cls.vapi.gtpu_add_del_tunnel( - src_addr=cls.pg0.local_ip4n, - dst_addr=cls.mcast_ip4n, + is_add=True, + src_address=cls.pg0.local_ip4, + dst_address=cls.mcast_ip4, mcast_sw_if_index=1, - teid=cls.mcast_flood_bd) - cls.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index, - bd_id=cls.mcast_flood_bd) + decap_next_index=0xFFFFFFFF, + teid=cls.mcast_flood_bd, + ) + cls.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=r.sw_if_index, bd_id=cls.mcast_flood_bd + ) cls.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=cls.pg2.sw_if_index, bd_id=cls.mcast_flood_bd) + rx_sw_if_index=cls.pg2.sw_if_index, bd_id=cls.mcast_flood_bd + ) # Add and delete mcast tunnels to check stability cls.add_shared_mcast_dst_load() @@ -270,27 +402,32 @@ class TestGtpu(BridgeDomain, VppTestCase): # Setup teid 3 to test unicast flooding cls.ucast_flood_bd = 13 - cls.create_gtpu_flood_test_bd(cls.ucast_flood_bd, - cls.n_ucast_tunnels) + cls.create_gtpu_flood_test_bd(cls.ucast_flood_bd, cls.n_ucast_tunnels) cls.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=cls.pg3.sw_if_index, bd_id=cls.ucast_flood_bd) + rx_sw_if_index=cls.pg3.sw_if_index, bd_id=cls.ucast_flood_bd + ) except Exception: super(TestGtpu, cls).tearDownClass() raise + @classmethod + def tearDownClass(cls): + super(TestGtpu, cls).tearDownClass() + # Method to define VPP actions before tear down of the test case. # Overrides tearDown method in VppTestCase class. # @param self The object pointer. def tearDown(self): super(TestGtpu, self).tearDown() - if not self.vpp_dead: - self.logger.info(self.vapi.cli("show bridge-domain 11 detail")) - self.logger.info(self.vapi.cli("show bridge-domain 12 detail")) - self.logger.info(self.vapi.cli("show bridge-domain 13 detail")) - self.logger.info(self.vapi.cli("show int")) - self.logger.info(self.vapi.cli("show gtpu tunnel")) - self.logger.info(self.vapi.cli("show trace")) + + def show_commands_at_teardown(self): + self.logger.info(self.vapi.cli("show bridge-domain 11 detail")) + self.logger.info(self.vapi.cli("show bridge-domain 12 detail")) + self.logger.info(self.vapi.cli("show bridge-domain 13 detail")) + self.logger.info(self.vapi.cli("show int")) + self.logger.info(self.vapi.cli("show gtpu tunnel")) + self.logger.info(self.vapi.cli("show trace")) -if __name__ == '__main__': +if __name__ == "__main__": unittest.main(testRunner=VppTestRunner)