1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
#!/usr/bin/env python
# SPDX-License-Identifier: ISC
#
# test_simple_snmp.py
# Part of NetDEF Topology Tests
#
# Copyright (c) 2020 by Volta Networks
#
"""
test_bgp_simple snmp.py: Test snmp infrastructure.
"""
import os
import sys
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.topogen import Topogen, TopoRouter, get_topogen
from lib.snmptest import SnmpTester
from time import sleep
from lib.topolog import logger
pytestmark = [pytest.mark.bgpd, pytest.mark.isisd, pytest.mark.snmp]
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...
topodef = {"s1": "r1", "s2": "r1", "s3": "r1"}
tgen = Topogen(topodef, mod.__name__)
# ... and here it calls Mininet initialization functions.
tgen.start_topology()
r1 = tgen.gears["r1"]
r1.run("ip addr add 192.168.12.12/24 dev r1-eth0")
r1.run("ip -6 addr add 2000:1:1:12::12/64 dev r1-eth0")
r1.run("ip addr add 192.168.13.13/24 dev r1-eth1")
r1.run("ip -6 addr add 2000:1:1:13::13/64 dev r1-eth1")
r1.run("ip addr add 192.168.14.14/24 dev r1-eth2")
r1.run("ip -6 addr add 2000:1:1:14::14/64 dev r1-eth2")
r1.run("ip addr add 1.1.1.1/32 dev lo")
r1.run("ip -6 addr add 2000:1:1:1::1/128 dev lo")
r1.run("ip addr show")
router_list = tgen.routers()
# For all registered routers, load the zebra configuration file
for rname, router in router_list.items():
router.load_frr_config(
os.path.join(CWD, "{}/frr.conf".format(rname)),
[
(TopoRouter.RD_ZEBRA, "-M snmp"),
(TopoRouter.RD_ISIS, "-M snmp"),
(TopoRouter.RD_BGP, "-M snmp"),
(TopoRouter.RD_RIP, "-M snmp"),
(TopoRouter.RD_OSPF, "-M snmp"),
(TopoRouter.RD_OSPF6, "-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()
# Why this sleep? If you are using zebra w/ snmp we have a chicken
# and egg problem with the snmpd. snmpd is being started up with
# ip addresses, and as such snmpd may not be ready to listen yet
# (see startup stuff in topotest.py ) with the 2 second delay
# on starting snmpd after zebra. As such if we want to test
# anything in zebra we need to sleep a bit to allow the connection
# to happen. I have no good way to test to see if zebra is up
# and running with snmp at this point in time. So this will have
# to do.
sleep(17)
def teardown_module():
"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()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
# tgen.mininet_cli()
r1 = tgen.gears["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"])
assert r1_snmp.test_oid(
"IP-FORWARD-MIB::ipForwardDest.192.168.12.0", "192.168.12.0"
)
assert r1_snmp.test_oid("ISIS-MIB::isisSysVersion", "one(1)")
assert r1_snmp.test_oid("RIPv2-MIB::rip2GlobalQueries", "0")
assert r1_snmp.test_oid("OSPF-MIB::ospfVersionNumber", "version2(2)")
assert r1_snmp.test_oid("OSPFV3-MIB::ospfv3VersionNumber", "version3(3)")
# Let's just dump everything and make sure we get some additional test
# coverage
logger.info("Let's walk everything")
logger.info(r1_snmp.walk(".1", raw=True))
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))
|
