362 lines
12 KiB
Python
362 lines
12 KiB
Python
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#!/usr/bin/env python
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# SPDX-License-Identifier: ISC
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#
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# test_isis_snmp.py
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# Part of NetDEF Topology Tests
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#
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# Copyright (c) 2020 by Volta Networks
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#
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"""
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test_isis_snmp.py:
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+---------+ 45.0.0.0/24 +---------+
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| | rt4-eth1 | |
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| RT4 +----------------+ RT5 |
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| | rt5-eth1| |
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+---------+ +---------+
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rt4-eth0| |rt5-eth0
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14.0.0.0/24| |25.0.0.0/24
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rt1-eth0| |rt2-eth0
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+---------+ +---------+
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| RT1 | | RT2 |
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| 1.1.1.1 | | 2.2.2.2 |
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+---------+ +---------+
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rt1-eth1| |rt2-eth1
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13.0.0.0/24| +---------+ |23.0.0.0/24
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| | RT3 | |
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+--------+ 3.3.3.3 +-------+
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rt3-eth1| |rt3-eth2
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+---------+
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|rt3-eth0
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ce3-eth0 (172.16.1.3/24)|
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+---------+
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| CE3 |
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+---------+
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"""
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import os
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import sys
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import pytest
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import json
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from functools import partial
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# Save the Current Working Directory to find configuration files.
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CWD = os.path.dirname(os.path.realpath(__file__))
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sys.path.append(os.path.join(CWD, "../"))
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# pylint: disable=C0413
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# Import topogen and topotest helpers
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from lib import topotest
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from lib.topogen import Topogen, TopoRouter, get_topogen
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from lib.topolog import logger
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from lib.snmptest import SnmpTester
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# Required to instantiate the topology builder class.
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pytestmark = [pytest.mark.isisd, pytest.mark.ldpd, pytest.mark.snmp]
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def build_topo(tgen):
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"Build function"
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#
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# Define FRR Routers
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#
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for router in ["ce3", "r1", "r2", "r3", "r4", "r5"]:
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tgen.add_router(router)
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#
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# Define connections
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#
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switch = tgen.add_switch("s1")
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switch.add_link(tgen.gears["r1"])
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switch.add_link(tgen.gears["r4"])
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switch = tgen.add_switch("s2")
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switch.add_link(tgen.gears["r5"])
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switch.add_link(tgen.gears["r2"])
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switch = tgen.add_switch("s3")
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switch.add_link(tgen.gears["ce3"])
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switch.add_link(tgen.gears["r3"])
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switch = tgen.add_switch("s4")
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switch.add_link(tgen.gears["r4"])
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switch.add_link(tgen.gears["r5"])
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switch = tgen.add_switch("s5")
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switch.add_link(tgen.gears["r1"])
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switch.add_link(tgen.gears["r3"])
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switch = tgen.add_switch("s6")
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switch.add_link(tgen.gears["r2"])
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switch.add_link(tgen.gears["r3"])
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def setup_module(mod):
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"Sets up the pytest environment"
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# skip tests is SNMP not installed
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if not os.path.isfile("/usr/sbin/snmpd"):
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error_msg = "SNMP not installed - skipping"
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pytest.skip(error_msg)
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# This function initiates the topology build with Topogen...
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tgen = Topogen(build_topo, mod.__name__)
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# ... and here it calls Mininet initialization functions.
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tgen.start_topology()
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router_list = tgen.routers()
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# For all registered routers, load the zebra configuration file
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for rname, router in router_list.items():
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router.load_config(
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TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
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)
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# Don't start the following in the CE nodes
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if router.name[0] == "r":
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router.load_config(
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TopoRouter.RD_ISIS,
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os.path.join(CWD, "{}/isisd.conf".format(rname)),
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"-M snmp",
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)
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router.load_config(
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TopoRouter.RD_LDP,
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os.path.join(CWD, "{}/ldpd.conf".format(rname)),
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)
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router.load_config(
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TopoRouter.RD_SNMP,
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os.path.join(CWD, "{}/snmpd.conf".format(rname)),
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"-Le -Ivacm_conf,usmConf,iquery -V -DAgentX,trap",
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)
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# After loading the configurations, this function loads configured daemons.
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tgen.start_router()
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def teardown_module(mod):
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"Teardown the pytest environment"
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tgen = get_topogen()
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# This function tears down the whole topology.
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tgen.stop_topology()
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def router_compare_json_output(rname, command, reference):
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"Compare router JSON output"
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logger.info('Comparing router "%s" "%s" output', rname, command)
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tgen = get_topogen()
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filename = "{}/{}/{}".format(CWD, rname, reference)
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expected = json.loads(open(filename).read())
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# Run test function until we get an result. Wait at most 80 seconds.
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test_func = partial(topotest.router_json_cmp, tgen.gears[rname], command, expected)
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_, diff = topotest.run_and_expect(test_func, None, count=160, wait=0.5)
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assertmsg = '"{}" JSON output mismatches the expected result'.format(rname)
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assert diff is None, assertmsg
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def generate_oid(numoids, index1, index2):
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if numoids == 1:
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oid = "{}".format(index1)
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else:
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oid = "{}.{}".format(index1, index2)
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return oid
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def test_isis_convergence():
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logger.info("Test: check ISIS adjacencies")
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tgen = get_topogen()
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for rname in ["r1", "r2", "r3", "r4", "r5"]:
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router_compare_json_output(
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rname,
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"show yang operational-data /frr-interface:lib isisd",
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"show_yang_interface_isis_adjacencies.ref",
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)
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def test_r1_scalar_snmp():
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"Wait for protocol convergence"
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tgen = get_topogen()
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# Skip if previous fatal error condition is raised
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if tgen.routers_have_failure():
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pytest.skip(tgen.errors)
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r1 = tgen.gears["r1"]
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r1_snmp = SnmpTester(r1, "1.1.1.1", "public", "2c")
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assert r1_snmp.test_oid("isisSysVersion", "one(1)")
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assert r1_snmp.test_oid("isisSysLevelType", "level1and2(3)")
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assert r1_snmp.test_oid("isisSysID", "00 00 00 00 00 01")
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assert r1_snmp.test_oid("isisSysMaxPathSplits", "32")
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assert r1_snmp.test_oid("isisSysMaxLSPGenInt", "900 seconds")
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assert r1_snmp.test_oid("isisSysAdminState", "on(1)")
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assert r1_snmp.test_oid("isisSysMaxAge", "1200 seconds")
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assert r1_snmp.test_oid("isisSysProtSupported", "07 5 6 7")
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r2 = tgen.gears["r2"]
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r2_snmp = SnmpTester(r2, "2.2.2.2", "public", "2c")
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assert r2_snmp.test_oid("isisSysVersion", "one(1)")
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assert r2_snmp.test_oid("isisSysLevelType", "level1and2(3)")
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assert r2_snmp.test_oid("isisSysID", "00 00 00 00 00 02")
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assert r2_snmp.test_oid("isisSysMaxPathSplits", "32")
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assert r2_snmp.test_oid("isisSysMaxLSPGenInt", "900 seconds")
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assert r2_snmp.test_oid("isisSysAdminState", "on(1)")
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assert r2_snmp.test_oid("isisSysMaxAge", "1200 seconds")
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assert r2_snmp.test_oid("isisSysProtSupported", "07 5 6 7")
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circtable_test = {
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"isisCircAdminState": ["on(1)", "on(1)"],
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"isisCircExistState": ["active(1)", "active(1)"],
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"isisCircType": ["broadcast(1)", "ptToPt(2)"],
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"isisCircExtDomain": ["false(2)", "false(2)"],
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"isisCircLevelType": ["level1(1)", "level1(1)"],
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"isisCircPassiveCircuit": ["false(2)", "false(2)"],
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"isisCircMeshGroupEnabled": ["inactive(1)", "inactive(1)"],
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"isisCircSmallHellos": ["false(2)", "false(2)"],
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"isisCirc3WayEnabled": ["false(2)", "false(2)"],
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}
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def test_r1_isisCircTable():
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tgen = get_topogen()
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r1 = tgen.gears["r1"]
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r1_snmp = SnmpTester(r1, "1.1.1.1", "public", "2c")
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oids = []
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oids.append(generate_oid(1, 1, 0))
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oids.append(generate_oid(1, 2, 0))
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# check items
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for item in circtable_test.keys():
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assertmsg = "{} should be {} oids {} full dict {}:".format(
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item, circtable_test[item], oids, r1_snmp.walk(item)
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)
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assert r1_snmp.test_oid_walk(item, circtable_test[item], oids), assertmsg
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circleveltable_test = {
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"isisCircLevelMetric": ["10", "10"],
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"isisCircLevelWideMetric": ["10", "10"],
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"isisCircLevelISPriority": ["64", "64"],
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"isisCircLevelHelloMultiplier": ["10", "10"],
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"isisCircLevelHelloTimer": [
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"3000 milliseconds",
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"3000 milliseconds",
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],
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"isisCircLevelMinLSPRetransInt": [
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"1 seconds",
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"1 seconds",
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],
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}
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def test_r1_isislevelCircTable():
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tgen = get_topogen()
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r1 = tgen.gears["r1"]
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r1_snmp = SnmpTester(r1, "1.1.1.1", "public", "2c")
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oids = []
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oids.append(generate_oid(2, 1, "area"))
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oids.append(generate_oid(2, 2, "area"))
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# check items
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for item in circleveltable_test.keys():
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assertmsg = "{} should be {} oids {} full dict {}:".format(
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item, circleveltable_test[item], oids, r1_snmp.walk(item)
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)
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assert r1_snmp.test_oid_walk(item, circleveltable_test[item], oids), assertmsg
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adjtable_test = {
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"isisISAdjState": ["up(3)", "up(3)"],
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"isisISAdj3WayState": ["down(2)", "up(0)"],
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"isisISAdjNeighSysType": ["l1IntermediateSystem(1)", "l1IntermediateSystem(1)"],
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"isisISAdjNeighSysID": ["00 00 00 00 00 04", "00 00 00 00 00 03"],
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"isisISAdjUsage": ["0", "level1(1)"],
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"isisISAdjNeighPriority": ["64", "0"],
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}
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adjtable_down_test = {
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"isisISAdjState": ["up(3)"],
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"isisISAdj3WayState": ["down(2)"],
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"isisISAdjNeighSysType": ["l1IntermediateSystem(1)"],
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"isisISAdjNeighSysID": ["00 00 00 00 00 04"],
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"isisISAdjUsage": ["0"],
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"isisISAdjNeighPriority": ["64"],
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}
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def test_r1_isisAdjTable():
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"check ISIS Adjacency Table"
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tgen = get_topogen()
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r1 = tgen.gears["r1"]
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r1_snmp = SnmpTester(r1, "1.1.1.1", "public", "2c")
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oids = []
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oids.append(generate_oid(2, 1, 1))
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oids.append(generate_oid(2, 2, 1))
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oids_down = []
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oids_down.append(generate_oid(2, 1, 1))
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# check items
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for item in adjtable_test.keys():
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assertmsg = "{} should be {} oids {} full dict {}:".format(
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item, adjtable_test[item], oids, r1_snmp.walk(item)
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)
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assert r1_snmp.test_oid_walk(item, adjtable_test[item], oids), assertmsg
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# shutdown interface and one adjacency should be removed
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"check ISIS adjacency is removed when interface is shutdown"
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r1.vtysh_cmd("conf t\ninterface r1-eth1\nshutdown")
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r1_snmp = SnmpTester(r1, "1.1.1.1", "public", "2c")
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for item in adjtable_down_test.keys():
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assertmsg = "{} should be {} oids {} full dict {}:".format(
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item, adjtable_down_test[item], oids_down, r1_snmp.walk(item)
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)
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assert r1_snmp.test_oid_walk(
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item, adjtable_down_test[item], oids_down
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), assertmsg
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# no shutdown interface and adjacency should be restored
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r1.vtysh_cmd("conf t\ninterface r1-eth1\nno shutdown")
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# Memory leak test template
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# disabling memory leak
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def test_memory_leak():
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"Run the memory leak test and report results."
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tgen = get_topogen()
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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))
|