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#!/usr/bin/env python
#
# test_simple_snmp.py
# Part of NetDEF Topology Tests
#
# Copyright (c) 2020 by Volta Networks
#
# 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_bgp_simple snmp.py: Test snmp infrastructure.
"""
import os
import sys
import json
from functools import partial
from time import sleep
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
from lib.snmptest import SnmpTester
# Required to instantiate the topology builder class.
from mininet.topo import Topo
class TemplateTopo(Topo):
"Test topology builder"
def build(self, *_args, **_opts):
"Build function"
tgen = get_topogen(self)
# This function only purpose is to define allocation and relationship
# between routers, switches and hosts.
#
#
# Create routers
tgen.add_router("r1")
# r1-eth0
switch = tgen.add_switch("s1")
switch.add_link(tgen.gears["r1"])
# r1-eth1
switch = tgen.add_switch("s2")
switch.add_link(tgen.gears["r1"])
# r1-eth2
switch = tgen.add_switch("s3")
switch.add_link(tgen.gears["r1"])
def setup_module(mod):
"Sets up the pytest environment"
# skip tests is SNMP not installed
if not os.path.isfile("/usr/sbin/snmpd"):
error_msg = "SNMP not installed - skipping"
pytest.skip(error_msg)
# This function initiates the topology build with Topogen...
tgen = Topogen(TemplateTopo, mod.__name__)
# ... and here it calls Mininet initialization functions.
tgen.start_topology()
r1 = tgen.gears["r1"]
router_list = tgen.routers()
# For all registred routers, load the zebra configuration file
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_ISIS, os.path.join(CWD, "{}/isisd.conf".format(rname))
)
router.load_config(
TopoRouter.RD_BGP,
os.path.join(CWD, "{}/bgpd.conf".format(rname)),
"-M snmp",
)
router.load_config(
TopoRouter.RD_SNMP,
os.path.join(CWD, "{}/snmpd.conf".format(rname)),
"-Le -Ivacm_conf,usmConf,iquery -V -DAgentX,trap",
)
# 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_r1_bgp_version():
"Wait for protocol convergence"
tgen = get_topogen()
# tgen.mininet_cli()
r1 = tgen.net.get("r1")
r1_snmp = SnmpTester(r1, "1.1.1.1", "public", "2c")
assert r1_snmp.test_oid("bgpVersin", None)
assert r1_snmp.test_oid("bgpVersion", "10")
assert r1_snmp.test_oid_walk("bgpVersion", ["10"])
assert r1_snmp.test_oid_walk("bgpVersion", ["10"], ["0"])
if __name__ == "__main__":
args = ["-s"] + sys.argv[1:]
sys.exit(pytest.main(args))
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