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#!/usr/bin/env python
#
# test_pim.py
#
# Copyright (c) 2018 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 Cumulus Networks 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_pim.py: Test pim
"""
import os
import sys
import pytest
CWD = os.path.dirname(os.path.realpath(__file__))
sys.path.append(os.path.join(CWD, '../'))
# pylint: disable=C0413
from lib import topotest
from lib.topogen import Topogen, TopoRouter, get_topogen
from lib.topolog import logger
from mininet.topo import Topo
class PIMTopo(Topo):
def build(self, *_args, **_opts):
"Build function"
tgen = get_topogen(self)
for routern in range(1, 3):
tgen.add_router('r{}'.format(routern))
# r1 <- sw1 -> r2
sw = tgen.add_switch('sw1')
sw.add_link(tgen.gears['r1'])
sw.add_link(tgen.gears['r2'])
def setup_module(mod):
"Sets up the pytest environment"
tgen = Topogen(PIMTopo, mod.__name__)
tgen.start_topology()
# For all registered routers, load the zebra configuration file
for rname, router in tgen.routers().iteritems():
router.load_config(
TopoRouter.RD_ZEBRA,
os.path.join(CWD, '{}/zebra.conf'.format(rname))
)
router.load_config(
TopoRouter.RD_PIM,
os.path.join(CWD, '{}/pimd.conf'.format(rname))
)
# After loading the configurations, this function loads configured daemons.
tgen.start_router()
def teardown_module(mod):
"Teardown the pytest environment"
tgen = get_topogen()
# This function tears down the whole topology.
tgen.stop_topology()
def test_pim_send_mcast_stream():
"Establish a Multicast stream from r2 -> r1 and then ensure S,G is created as appropriate"
logger.info("Establish a Mcast stream from r2->r1 and then ensure S,G created")
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
r2 = tgen.gears['r2']
r1 = tgen.gears['r1']
# Let's establish a S,G stream from r2 -> r1
CWD = os.path.dirname(os.path.realpath(__file__))
r2.run("{}/mcast-tx.py --ttl 5 --count 5 --interval 10 229.1.1.1 r2-eth0 > /tmp/bar".format(CWD))
# Let's see that it shows up and we have established some basic state
out = r1.vtysh_cmd("show ip pim upstream json", isjson=True)
expected = {
'229.1.1.1': {
'10.0.20.2': {
'firstHopRouter': 1,
'joinState': 'NotJoined',
'regState': 'RegPrune',
'inboundInterface': 'r1-eth0',
}
}
}
assert topotest.json_cmp(out, expected) is None, 'failed to converge pim'
def test_pim_igmp_report():
"Send a igmp report from r2->r1 and ensure that the *,G state is created on r1"
logger.info("Send a igmp report from r2-r1 and ensure *,G created")
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
r2 = tgen.gears['r2']
r1 = tgen.gears['r1']
# Let's send a igmp report from r2->r1
CWD = os.path.dirname(os.path.realpath(__file__))
r2.run("{}/mcast-rx.py 229.1.1.2 r2-eth0 &".format(CWD))
out = r1.vtysh_cmd("show ip pim upstream json", isjson=True)
expected = {
'229.1.1.2': {
'*': {
'sourceIgmp': 1,
'joinState': 'Joined',
'regState': 'RegNoInfo',
'sptBit': 0,
}
}
}
assert topotest.json_cmp(out, expected) is None, 'failed to converge pim'
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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