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frr/tests/topotests/isis_snmp/test_isis_snmp.py
Daniel Baumann 3124f89aed
Adding upstream version 10.1.1. 
Signed-off-by: Daniel Baumann <daniel@debian.org>
2025-02-05 10:03:58 +01:00

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