-#!/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 tag_fixme_vpp_workers
from framework import VppTestCase, VppTestRunner
from template_bd import BridgeDomain
-from scapy.layers.l2 import Ether, Raw
+from scapy.layers.l2 import Ether
+from scapy.packet import 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
+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)
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):
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):
"""
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
"""
# 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
"""
# 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
"""
# 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)
# 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):
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
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):
try:
cls.dport = 2152
- cls.gtp_type = 0xff
+ cls.gtp_type = 0xFF
# Create 2 pg interfaces.
cls.create_pg_interfaces(range(4))
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=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)
+ 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()
# 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
self.logger.info(self.vapi.cli("show trace"))
-if __name__ == '__main__':
+if __name__ == "__main__":
unittest.main(testRunner=VppTestRunner)
Code Review / vpp.git / blobdiff