+++ /dev/null
-#!/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)
Code Review / vpp.git / blobdiff