2019-10-31 13:31:07 -05:00
|
|
|
#!/usr/bin/env python3
|
2019-05-22 13:26:39 +00:00
|
|
|
|
|
|
|
from socket import inet_pton, inet_ntop, AF_INET, AF_INET6
|
|
|
|
import unittest
|
|
|
|
|
|
|
|
from framework import VppTestCase, VppTestRunner
|
|
|
|
from vpp_ip import DpoProto
|
|
|
|
from vpp_ip_route import VppIpRoute, VppRoutePath, VppMplsLabel, VppIpTable
|
|
|
|
|
|
|
|
from scapy.packet import Raw
|
|
|
|
from scapy.layers.l2 import Ether
|
|
|
|
from scapy.layers.inet import IP, UDP
|
|
|
|
from scapy.layers.inet6 import IPv6
|
|
|
|
|
|
|
|
from vpp_object import VppObject
|
|
|
|
|
|
|
|
NUM_PKTS = 67
|
|
|
|
|
|
|
|
|
|
|
|
def find_l3xc(test, sw_if_index, dump_sw_if_index=None):
|
|
|
|
if not dump_sw_if_index:
|
|
|
|
dump_sw_if_index = sw_if_index
|
|
|
|
xcs = test.vapi.l3xc_dump(dump_sw_if_index)
|
|
|
|
for xc in xcs:
|
|
|
|
if sw_if_index == xc.l3xc.sw_if_index:
|
|
|
|
return True
|
|
|
|
return False
|
|
|
|
|
|
|
|
|
|
|
|
class VppL3xc(VppObject):
|
|
|
|
|
|
|
|
def __init__(self, test, intf, paths, is_ip6=False):
|
|
|
|
self._test = test
|
|
|
|
self.intf = intf
|
|
|
|
self.is_ip6 = is_ip6
|
|
|
|
self.paths = paths
|
2018-05-01 05:17:55 -07:00
|
|
|
self.encoded_paths = []
|
|
|
|
for path in self.paths:
|
|
|
|
self.encoded_paths.append(path.encode())
|
2019-05-22 13:26:39 +00:00
|
|
|
|
|
|
|
def add_vpp_config(self):
|
|
|
|
self._test.vapi.l3xc_update(
|
|
|
|
l3xc={
|
|
|
|
'is_ip6': self.is_ip6,
|
|
|
|
'sw_if_index': self.intf.sw_if_index,
|
|
|
|
'n_paths': len(self.paths),
|
2018-05-01 05:17:55 -07:00
|
|
|
'paths': self.encoded_paths
|
2019-05-22 13:26:39 +00:00
|
|
|
})
|
|
|
|
self._test.registry.register(self, self._test.logger)
|
|
|
|
|
|
|
|
def remove_vpp_config(self):
|
|
|
|
self._test.vapi.l3xc_del(
|
|
|
|
is_ip6=self.is_ip6,
|
|
|
|
sw_if_index=self.intf.sw_if_index)
|
|
|
|
|
|
|
|
def query_vpp_config(self):
|
|
|
|
return find_l3xc(self._test, self.intf.sw_if_index)
|
|
|
|
|
|
|
|
def object_id(self):
|
|
|
|
return ("l3xc-%d" % self.intf.sw_if_index)
|
|
|
|
|
|
|
|
|
|
|
|
class TestL3xc(VppTestCase):
|
|
|
|
""" L3XC Test Case """
|
|
|
|
|
|
|
|
@classmethod
|
|
|
|
def setUpClass(cls):
|
|
|
|
super(TestL3xc, cls).setUpClass()
|
|
|
|
|
|
|
|
@classmethod
|
|
|
|
def tearDownClass(cls):
|
|
|
|
super(TestL3xc, cls).tearDownClass()
|
|
|
|
|
|
|
|
def setUp(self):
|
|
|
|
super(TestL3xc, self).setUp()
|
|
|
|
|
|
|
|
self.create_pg_interfaces(range(6))
|
|
|
|
|
|
|
|
for i in self.pg_interfaces:
|
|
|
|
i.admin_up()
|
|
|
|
i.config_ip4()
|
|
|
|
i.resolve_arp()
|
|
|
|
i.config_ip6()
|
|
|
|
i.resolve_ndp()
|
|
|
|
|
|
|
|
def tearDown(self):
|
|
|
|
for i in self.pg_interfaces:
|
|
|
|
i.unconfig_ip4()
|
|
|
|
i.unconfig_ip6()
|
|
|
|
i.admin_down()
|
|
|
|
super(TestL3xc, self).tearDown()
|
|
|
|
|
|
|
|
def send_and_expect_load_balancing(self, input, pkts, outputs):
|
|
|
|
self.pg_send(input, pkts)
|
|
|
|
rxs = []
|
|
|
|
for oo in outputs:
|
|
|
|
rx = oo._get_capture(1)
|
|
|
|
self.assertNotEqual(0, len(rx))
|
|
|
|
for r in rx:
|
|
|
|
rxs.append(r)
|
|
|
|
return rxs
|
|
|
|
|
|
|
|
def test_l3xc4(self):
|
|
|
|
""" IPv4 X-Connect """
|
|
|
|
|
|
|
|
#
|
|
|
|
# x-connect pg0 to pg1 and pg2 to pg3->5
|
|
|
|
#
|
|
|
|
l3xc_1 = VppL3xc(self, self.pg0,
|
|
|
|
[VppRoutePath(self.pg1.remote_ip4,
|
|
|
|
self.pg1.sw_if_index)])
|
|
|
|
l3xc_1.add_vpp_config()
|
|
|
|
l3xc_2 = VppL3xc(self, self.pg2,
|
|
|
|
[VppRoutePath(self.pg3.remote_ip4,
|
|
|
|
self.pg3.sw_if_index),
|
|
|
|
VppRoutePath(self.pg4.remote_ip4,
|
|
|
|
self.pg4.sw_if_index),
|
|
|
|
VppRoutePath(self.pg5.remote_ip4,
|
|
|
|
self.pg5.sw_if_index)])
|
|
|
|
l3xc_2.add_vpp_config()
|
|
|
|
|
|
|
|
self.assertTrue(find_l3xc(self, self.pg2.sw_if_index, 0xffffffff))
|
|
|
|
|
|
|
|
self.logger.info(self.vapi.cli("sh l3xc"))
|
|
|
|
|
|
|
|
#
|
|
|
|
# fire in packets. If it's forwarded then the L3XC was successful,
|
|
|
|
# since default routing will drop it
|
|
|
|
#
|
|
|
|
p_1 = (Ether(src=self.pg0.remote_mac,
|
|
|
|
dst=self.pg0.local_mac) /
|
|
|
|
IP(src="1.1.1.1", dst="1.1.1.2") /
|
|
|
|
UDP(sport=1234, dport=1234) /
|
2019-11-07 13:52:21 +01:00
|
|
|
Raw(b'\xa5' * 100))
|
2019-05-22 13:26:39 +00:00
|
|
|
# self.send_and_expect(self.pg0, p_1*NUM_PKTS, self.pg1)
|
|
|
|
|
|
|
|
p_2 = []
|
|
|
|
for ii in range(NUM_PKTS):
|
|
|
|
p_2.append(Ether(src=self.pg0.remote_mac,
|
|
|
|
dst=self.pg0.local_mac) /
|
|
|
|
IP(src="1.1.1.1", dst="1.1.1.2") /
|
|
|
|
UDP(sport=1000 + ii, dport=1234) /
|
2019-11-07 13:52:21 +01:00
|
|
|
Raw(b'\xa5' * 100))
|
2019-05-22 13:26:39 +00:00
|
|
|
self.send_and_expect_load_balancing(self.pg2, p_2,
|
|
|
|
[self.pg3, self.pg4, self.pg5])
|
|
|
|
|
|
|
|
l3xc_2.remove_vpp_config()
|
|
|
|
self.send_and_assert_no_replies(self.pg2, p_2)
|
|
|
|
|
|
|
|
|
|
|
|
if __name__ == '__main__':
|
|
|
|
unittest.main(testRunner=VppTestRunner)
|