diff options
Diffstat (limited to 'test/test_gtpu.py')
| -rw-r--r-- | test/test_gtpu.py | 393 |
1 files changed, 0 insertions, 393 deletions
diff --git a/test/test_gtpu.py b/test/test_gtpu.py deleted file mode 100644 index 957181a71e4..00000000000 --- a/test/test_gtpu.py +++ /dev/null @@ -1,393 +0,0 @@ -#!/usr/bin/env python - -import socket -from util import ip4n_range, ip4_range -import unittest -from framework import VppTestCase, VppTestRunner -from template_bd import BridgeDomain - -from scapy.layers.l2 import Ether, Raw -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 -from vpp_ip_route import VppIpRoute, VppRoutePath -from vpp_ip import INVALID_INDEX - - -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 for dst port')[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 for dst port')[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(src_addr=self.pg0.local_ip4n, - dst_addr=self.pg0.remote_ip4n) - - # UDP port 2152 enabled for ip4 - self._check_udp_port_ip4() - - r = self.vapi.gtpu_add_del_tunnel(is_ipv6=1, - src_addr=self.pg0.local_ip6n, - dst_addr=self.pg0.remote_ip6n) - - # UDP port 2152 enabled for ip6 - self._check_udp_port_ip6() - - r = self.vapi.gtpu_add_del_tunnel(is_add=0, - src_addr=self.pg0.local_ip4n, - dst_addr=self.pg0.remote_ip4n) - - r = self.vapi.gtpu_add_del_tunnel(is_add=0, is_ipv6=1, - src_addr=self.pg0.local_ip6n, - dst_addr=self.pg0.remote_ip6n) - - -class TestGtpu(BridgeDomain, VppTestCase): - """ GTPU Test Case """ - - def __init__(self, *args): - BridgeDomain.__init__(self) - VppTestCase.__init__(self, *args) - - def encapsulate(self, pkt, vni): - """ - 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) - - def ip_range(self, start, end): - """ range of remote ip's """ - return ip4_range(self.pg0.remote_ip4, start, end) - - def encap_mcast(self, pkt, src_ip, src_mac, vni): - """ - 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) - - def decapsulate(self, pkt): - """ - Decapsulate the original payload frame by removing GTPU header - """ - return pkt[GTP_U_Header].payload - - # Method for checking GTPU encapsulation. - # - def check_encapsulation(self, pkt, vni, local_only=False, mcast_pkt=False): - # Verify source MAC is VPP_MAC and destination MAC is MY_MAC resolved - # by VPP using ARP. - self.assertEqual(pkt[Ether].src, self.pg0.local_mac) - if not local_only: - if not mcast_pkt: - self.assertEqual(pkt[Ether].dst, self.pg0.remote_mac) - else: - self.assertEqual(pkt[Ether].dst, type(self).mcast_mac) - # Verify GTPU tunnel source IP is VPP_IP and destination IP is MY_IP. - self.assertEqual(pkt[IP].src, self.pg0.local_ip4) - if not local_only: - if not mcast_pkt: - self.assertEqual(pkt[IP].dst, self.pg0.remote_ip4) - else: - self.assertEqual(pkt[IP].dst, type(self).mcast_ip4) - # Verify UDP destination port is GTPU 2152, source UDP port could be - # arbitrary. - self.assertEqual(pkt[UDP].dport, type(self).dport) - # Verify teid - self.assertEqual(pkt[GTP_U_Header].teid, vni) - - def test_encap(self): - """ Encapsulation test - Send frames from pg1 - Verify receipt of encapsulated frames on pg0 - """ - self.pg1.add_stream([self.frame_reply]) - - self.pg0.enable_capture() - - self.pg_start() - - # 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) - - # payload = self.decapsulate(pkt) - # self.assert_eq_pkts(payload, self.frame_reply) - - def test_ucast_flood(self): - """ Unicast flood test - Send frames from pg3 - Verify receipt of encapsulated frames on pg0 - """ - self.pg3.add_stream([self.frame_reply]) - - self.pg0.enable_capture() - - self.pg_start() - - # Get packet from each tunnel and assert it's correctly encapsulated. - out = self.pg0.get_capture(self.n_ucast_tunnels) - for pkt in out: - self.check_encapsulation(pkt, self.ucast_flood_bd, True) - # payload = self.decapsulate(pkt) - # self.assert_eq_pkts(payload, self.frame_reply) - - def test_mcast_flood(self): - """ Multicast flood test - Send frames from pg2 - Verify receipt of encapsulated frames on pg0 - """ - self.pg2.add_stream([self.frame_reply]) - - self.pg0.enable_capture() - - self.pg_start() - - # 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) - - # payload = self.decapsulate(pkt) - # self.assert_eq_pkts(payload, self.frame_reply) - - @classmethod - def create_gtpu_flood_test_bd(cls, teid, n_ucast_tunnels): - # 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_ip4 - for dest_ip4 in ip4_range(next_hop_address, ip_range_start, - ip_range_end): - # add host route so dest_ip4n will not be resolved - rip = VppIpRoute(cls, dest_ip4, 32, - [VppRoutePath(next_hop_address, - INVALID_INDEX)], - register=False) - rip.add_vpp_config() - dest_ip4n = socket.inet_pton(socket.AF_INET, dest_ip4) - 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) - - @classmethod - def add_del_shared_mcast_dst_load(cls, is_add): - """ - add or del tunnels sharing the same mcast dst - to test gtpu ref_count mechanism - """ - n_shared_dst_tunnels = 20 - teid_start = 1000 - 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, - mcast_sw_if_index=1, - teid=teid, - is_add=is_add) - if r.sw_if_index == 0xffffffff: - raise ValueError("bad sw_if_index: ~0") - - @classmethod - def add_shared_mcast_dst_load(cls): - cls.add_del_shared_mcast_dst_load(is_add=1) - - @classmethod - def del_shared_mcast_dst_load(cls): - cls.add_del_shared_mcast_dst_load(is_add=0) - - @classmethod - def add_del_mcast_tunnels_load(cls, is_add): - """ - add or del tunnels to test gtpu stability - """ - 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] - cls.vapi.gtpu_add_del_tunnel( - src_addr=cls.pg0.local_ip4n, - dst_addr=dest_ip4n, - mcast_sw_if_index=1, - teid=teid, - is_add=is_add) - - @classmethod - def add_mcast_tunnels_load(cls): - cls.add_del_mcast_tunnels_load(is_add=1) - - @classmethod - def del_mcast_tunnels_load(cls): - cls.add_del_mcast_tunnels_load(is_add=0) - - # Class method to start the GTPU test case. - # Overrides setUpClass method in VppTestCase class. - # Python try..except statement is used to ensure that the tear down of - # the class will be executed even if exception is raised. - # @param cls The class pointer. - @classmethod - def setUpClass(cls): - super(TestGtpu, cls).setUpClass() - - try: - cls.dport = 2152 - cls.gtp_type = 0xff - - # Create 2 pg interfaces. - cls.create_pg_interfaces(range(4)) - for pg in cls.pg_interfaces: - pg.admin_up() - - # Configure IPv4 addresses on VPP pg0. - cls.pg0.config_ip4() - - # Resolve MAC address for VPP's IP address on pg0. - 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) - - # Create GTPU VTEP on VPP pg0, and put gtpu_tunnel0 and pg1 - # into BD. - cls.single_tunnel_bd = 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) - 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) - r = cls.vapi.gtpu_add_del_tunnel( - src_addr=cls.pg0.local_ip4n, - dst_addr=cls.mcast_ip4n, - 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) - cls.vapi.sw_interface_set_l2_bridge( - 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() - cls.add_mcast_tunnels_load() - cls.del_shared_mcast_dst_load() - cls.del_mcast_tunnels_load() - - # 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.vapi.sw_interface_set_l2_bridge( - 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() - - 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__': - unittest.main(testRunner=VppTestRunner) |