189 lines
5.1 KiB
Python
189 lines
5.1 KiB
Python
#!/usr/bin/env python
|
|
# SPDX-License-Identifier: ISC
|
|
|
|
#
|
|
# test_bgp_flowspec_topo.py
|
|
# Part of NetDEF Topology Tests
|
|
#
|
|
# Copyright (c) 2019 by 6WIND
|
|
#
|
|
|
|
"""
|
|
test_bgp_flowspec_topo.py: Test BGP topology with Flowspec EBGP peering
|
|
|
|
|
|
+------+------+
|
|
| peer1 |
|
|
| BGP peer 1 |
|
|
|192.168.0.161|
|
|
| |
|
|
+------+------+
|
|
.2 | r1-eth0
|
|
|
|
|
~~~~~~~~~
|
|
+---~~ s1 ~~------+
|
|
~~ ~~
|
|
~~~~~~~~~
|
|
| 10.0.1.1 r1-eth0
|
|
| 1001::1 r1-eth0
|
|
+--------+--------+
|
|
| r1 |
|
|
|BGP 192.168.0.162|
|
|
| |
|
|
| |
|
|
| |
|
|
+-----------------+
|
|
|
|
"""
|
|
|
|
import json
|
|
import functools
|
|
import os
|
|
import sys
|
|
import pytest
|
|
|
|
# Save the Current Working Directory to find configuration files.
|
|
CWD = os.path.dirname(os.path.realpath(__file__))
|
|
sys.path.append(os.path.join(CWD, "../"))
|
|
|
|
# pylint: disable=C0413
|
|
# Import topogen and topotest helpers
|
|
from lib import topotest
|
|
from lib.topogen import Topogen, TopoRouter, get_topogen
|
|
from lib.topolog import logger
|
|
|
|
# Required to instantiate the topology builder class.
|
|
|
|
|
|
pytestmark = [pytest.mark.bgpd]
|
|
|
|
|
|
#####################################################
|
|
##
|
|
## Network Topology Definition
|
|
##
|
|
#####################################################
|
|
|
|
|
|
def build_topo(tgen):
|
|
tgen.add_router("r1")
|
|
|
|
# Setup Control Path Switch 1. r1-eth0
|
|
switch = tgen.add_switch("s1")
|
|
switch.add_link(tgen.gears["r1"])
|
|
|
|
## Add eBGP ExaBGP neighbors
|
|
peer_ip = "10.0.1.101" ## peer
|
|
peer_route = "via 10.0.1.1" ## router
|
|
peer = tgen.add_exabgp_peer("peer1", ip=peer_ip, defaultRoute=peer_route)
|
|
switch.add_link(peer)
|
|
|
|
|
|
#####################################################
|
|
##
|
|
## Tests starting
|
|
##
|
|
#####################################################
|
|
|
|
|
|
def setup_module(module):
|
|
tgen = Topogen(build_topo, module.__name__)
|
|
|
|
tgen.start_topology()
|
|
# check for zebra capability
|
|
router = tgen.gears["r1"]
|
|
|
|
# Get r1 reference and run Daemons
|
|
logger.info("Launching BGP and ZEBRA on r1")
|
|
router = tgen.gears["r1"]
|
|
router.load_config(
|
|
TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format("r1"))
|
|
)
|
|
router.load_config(
|
|
TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format("r1"))
|
|
)
|
|
router.start()
|
|
|
|
peer_list = tgen.exabgp_peers()
|
|
for pname, peer in peer_list.items():
|
|
peer_dir = os.path.join(CWD, pname)
|
|
env_file = os.path.join(CWD, "exabgp.env")
|
|
peer.start(peer_dir, env_file)
|
|
logger.info(pname)
|
|
|
|
|
|
def teardown_module(module):
|
|
tgen = get_topogen()
|
|
tgen.stop_topology()
|
|
|
|
|
|
def test_bgp_convergence():
|
|
"Test for BGP topology convergence"
|
|
tgen = get_topogen()
|
|
|
|
# Skip if previous fatal error condition is raised
|
|
|
|
if tgen.routers_have_failure():
|
|
pytest.skip(tgen.errors)
|
|
|
|
logger.info("waiting for bgp convergence")
|
|
|
|
# Expected result
|
|
router = tgen.gears["r1"]
|
|
reffile = os.path.join(CWD, "r1/summary.txt")
|
|
|
|
expected = json.loads(open(reffile).read())
|
|
|
|
test_func = functools.partial(
|
|
topotest.router_json_cmp, router, "show bgp summary json", expected
|
|
)
|
|
_, res = topotest.run_and_expect(test_func, None, count=210, wait=1)
|
|
assertmsg = "BGP router network did not converge"
|
|
assert res is None, assertmsg
|
|
|
|
|
|
def test_bgp_flowspec():
|
|
tgen = get_topogen()
|
|
|
|
# Skip if previous fatal error condition is raised
|
|
if tgen.routers_have_failure():
|
|
pytest.skip(tgen.errors)
|
|
|
|
router = tgen.gears["r1"]
|
|
|
|
logger.info("Check BGP FS entry for 3.3.3.3 with redirect IP")
|
|
output = router.vtysh_cmd(
|
|
"show bgp ipv4 flowspec 3.3.3.3", isjson=False, daemon="bgpd"
|
|
)
|
|
logger.info(output)
|
|
if (
|
|
"NH 50.0.0.2" not in output
|
|
or "FS:redirect IP" not in output
|
|
or "Packet Length < 200" not in output
|
|
):
|
|
assertmsg = "traffic to 3.3.3.3 should have been detected as FS entry. NOK"
|
|
assert 0, assertmsg
|
|
else:
|
|
logger.info("Check BGP FS entry for 3.3.3.3 with redirect IP OK")
|
|
|
|
logger.info("Check BGP FS entry for 3::3 with redirect IP")
|
|
output = router.vtysh_cmd(
|
|
"show bgp ipv6 flowspec 3::3", isjson=False, daemon="bgpd"
|
|
)
|
|
logger.info(output)
|
|
if (
|
|
"NH 50::2" not in output
|
|
or "FS:redirect IP" not in output
|
|
or "Packet Length < 200" not in output
|
|
):
|
|
assertmsg = "traffic to 3::3 should have been detected as FS entry. NOK"
|
|
assert 0, assertmsg
|
|
else:
|
|
logger.info("Check BGP FS entry for 3::3 with redirect IP OK")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
args = ["-s"] + sys.argv[1:]
|
|
ret = pytest.main(args)
|
|
|
|
sys.exit(ret)
|