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#!/usr/bin/env python3
import unittest
from scapy.layers.inet import IP, UDP
from scapy.layers.inet6 import IPv6, Raw
from scapy.layers.l2 import Ether, ARP, Dot1Q
from vpp_object import VppObject
from framework import VppTestCase, VppTestRunner
class VppLcpPair(VppObject):
def __init__(self, test, phy, host):
self._test = test
self.phy = phy
self.host = host
def add_vpp_config(self):
self._test.vapi.cli("test lcp add phy %s host %s" %
(self.phy, self.host))
self._test.registry.register(self, self._test.logger)
return self
def remove_vpp_config(self):
self._test.vapi.cli("test lcp del phy %s host %s" %
(self.phy, self.host))
def object_id(self):
return "lcp:%d:%d" % (self.phy.sw_if_index,
self.host.sw_if_index)
def query_vpp_config(self):
pairs = list(self._test.vapi.vpp.details_iter(
self._test.vapi.lcp_itf_pair_get))
for p in pairs:
if p.phy_sw_if_index == self.phy.sw_if_index and \
p.host_sw_if_index == self.host.sw_if_index:
return True
return False
class TestLinuxCP(VppTestCase):
""" Linux Control Plane """
extra_vpp_plugin_config = ["plugin",
"linux_cp_plugin.so",
"{", "enable", "}",
"plugin",
"linux_cp_unittest_plugin.so",
"{", "enable", "}"]
@classmethod
def setUpClass(cls):
super(TestLinuxCP, cls).setUpClass()
@classmethod
def tearDownClass(cls):
super(TestLinuxCP, cls).tearDownClass()
def setUp(self):
super(TestLinuxCP, self).setUp()
# create 4 pg interfaces so there are a few addresses
# in the FIB
self.create_pg_interfaces(range(4))
for i in self.pg_interfaces:
i.admin_up()
def tearDown(self):
for i in self.pg_interfaces:
i.admin_down()
super(TestLinuxCP, self).tearDown()
def test_linux_cp_tap(self):
""" Linux CP TAP """
#
# Setup
#
arp_opts = {"who-has": 1, "is-at": 2}
# create two pairs, wihch a bunch of hots on the phys
hosts = [self.pg0, self.pg1]
phys = [self.pg2, self.pg3]
N_HOSTS = 4
for phy in phys:
phy.config_ip4()
phy.generate_remote_hosts(4)
phy.configure_ipv4_neighbors()
pair1 = VppLcpPair(self, phys[0], hosts[0]).add_vpp_config()
pair2 = VppLcpPair(self, phys[1], hosts[1]).add_vpp_config()
self.logger.info(self.vapi.cli("sh lcp adj verbose"))
self.logger.info(self.vapi.cli("sh lcp"))
#
# Traffic Tests
#
# hosts to phys
for phy, host in zip(phys, hosts):
for j in range(N_HOSTS):
p = (Ether(src=phy.local_mac,
dst=phy.remote_hosts[j].mac) /
IP(src=phy.local_ip4,
dst=phy.remote_hosts[j].ip4) /
UDP(sport=1234, dport=1234) /
Raw())
rxs = self.send_and_expect(host, [p], phy)
# verify packet is unchanged
for rx in rxs:
self.assertEqual(p.show2(True), rx.show2(True))
# ARPs x-connect to phy
p = (Ether(dst="ff:ff:ff:ff:ff:ff",
src=phy.remote_hosts[j].mac) /
ARP(op="who-has",
hwdst=phy.remote_hosts[j].mac,
hwsrc=phy.local_mac,
psrc=phy.local_ip4,
pdst=phy.remote_hosts[j].ip4))
rxs = self.send_and_expect(host, [p], phy)
# verify packet is unchanged
for rx in rxs:
self.assertEqual(p.show2(True), rx.show2(True))
# phy to host
for phy, host in zip(phys, hosts):
for j in range(N_HOSTS):
p = (Ether(dst=phy.local_mac,
src=phy.remote_hosts[j].mac) /
IP(dst=phy.local_ip4,
src=phy.remote_hosts[j].ip4) /
UDP(sport=1234, dport=1234) /
Raw())
rxs = self.send_and_expect(phy, [p], host)
# verify packet is unchanged
for rx in rxs:
self.assertEqual(p.show2(True), rx.show2(True))
# ARPs rx'd on the phy are sent to the host
p = (Ether(dst="ff:ff:ff:ff:ff:ff",
src=phy.remote_hosts[j].mac) /
ARP(op="is-at",
hwsrc=phy.remote_hosts[j].mac,
hwdst=phy.local_mac,
pdst=phy.local_ip4,
psrc=phy.remote_hosts[j].ip4))
rxs = self.send_and_expect(phy, [p], host)
# verify packet is unchanged
for rx in rxs:
self.assertEqual(p.show2(True), rx.show2(True))
# cleanup
for phy in phys:
phy.unconfig_ip4()
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)
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