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#!/usr/bin/env python
#
# test_ospf_unnumbered.py
#
# Copyright (c) 2019 by
# Cumulus Networks, Inc
# Donald Sharp
#
# Permission to use, copy, modify, and/or distribute this software
# for any purpose with or without fee is hereby granted, provided
# that the above copyright notice and this permission notice appear
# in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND NETDEF DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
# OF THIS SOFTWARE.
#
"""
test_ospf_unnumbered.py: Test the OSPF unnumbered.
"""
import os
import sys
from functools import partial
import pytest
import json
# 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.ospfd]
CWD = os.path.dirname(os.path.realpath(__file__))
def build_topo(tgen):
"Build function"
# Create 4 routers
for routern in range(1, 3):
tgen.add_router("r{}".format(routern))
# Create a empty network for router 1
switch = tgen.add_switch("s1")
switch.add_link(tgen.gears["r1"])
# Create a empty network for router 2
switch = tgen.add_switch("s2")
switch.add_link(tgen.gears["r2"])
# Interconect router 1, 2
switch = tgen.add_switch("s3")
switch.add_link(tgen.gears["r1"])
switch.add_link(tgen.gears["r2"])
def setup_module(mod):
"Sets up the pytest environment"
tgen = Topogen(build_topo, mod.__name__)
tgen.start_topology()
router_list = tgen.routers()
for rname, router in router_list.items():
router.load_config(
TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
)
router.load_config(
TopoRouter.RD_OSPF, os.path.join(CWD, "{}/ospfd.conf".format(rname))
)
# What is this? OSPF Unnumbered depends on the rp_filter
# being set appropriately( HA! )
# Effectively we are putting different /32's on the interface
# the multicast packet delivery is somewhat controlled by
# the rp_filter. Setting it to '0' allows the OS to pass
# up the mcast packet not destined for the local routers
# network.
topotest.sysctl_assure(tgen.net["r1"], "net.ipv4.conf.r1-eth1.rp_filter", 0)
topotest.sysctl_assure(tgen.net["r1"], "net.ipv4.conf.all.rp_filter", 0)
topotest.sysctl_assure(tgen.net["r2"], "net.ipv4.conf.r2-eth1.rp_filter", 0)
topotest.sysctl_assure(tgen.net["r2"], "net.ipv4.conf.all.rp_filter", 0)
# Initialize all routers.
tgen.start_router()
# tgen.mininet_cli()
def teardown_module(mod):
"Teardown the pytest environment"
tgen = get_topogen()
tgen.stop_topology()
def test_ospf_convergence():
"Test OSPF daemon convergence and that we have received the ospf routes"
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip("skipped because of router(s) failure")
for router, rnode in tgen.routers().items():
logger.info('Waiting for router "%s" convergence', router)
json_file = "{}/{}/ospf-route.json".format(CWD, router)
expected = json.loads(open(json_file).read())
test_func = partial(
topotest.router_json_cmp, rnode, "show ip ospf route json", expected
)
_, result = topotest.run_and_expect(test_func, None, count=160, wait=0.5)
assertmsg = '"{}" JSON output mismatches'.format(router)
assert result is None, assertmsg
# tgen.mininet_cli()
def test_ospf_kernel_route():
"Test OSPF kernel route installation and we have the onlink success"
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip("skipped because of router(s) failure")
rlist = tgen.routers().values()
for router in rlist:
logger.info('Checking OSPF IPv4 kernel routes in "%s"', router.name)
json_file = "{}/{}/v4_route.json".format(CWD, router.name)
expected = json.loads(open(json_file).read())
test_func = partial(
topotest.router_json_cmp, router, "show ip route json", expected
)
_, result = topotest.run_and_expect(test_func, None, count=10, wait=0.5)
assertmsg = '"{}" JSON output mistmatches'.format(router)
assert result is None, assertmsg
# tgen.mininet_cli()
def test_memory_leak():
"Run the memory leak test and report results."
tgen = get_topogen()
if not tgen.is_memleak_enabled():
pytest.skip("Memory leak test/report is disabled")
tgen.report_memory_leaks()
if __name__ == "__main__":
args = ["-s"] + sys.argv[1:]
sys.exit(pytest.main(args))
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