def verify_virtualenv():
if not testlib.virtualenv_path():
raise SystemExit("ERROR: Please load virtual environment first "
"(Use \"pipenv shell\" or configure direnv)")
def snmpsim(site, request, tmp_path_factory):
tmp_path = tmp_path_factory.getbasetemp()
snmpsimd_path = "%s/bin/snmpsimd.py" % (virtualenv_path())
source_data_dir = Path(request.fspath.dirname) / "snmp_data"
log.logger.setLevel(logging.DEBUG)
debug.enable()
cmd = [
"%s/bin/python" % site.root,
snmpsimd_path,
#"--log-level=error",
"--cache-dir",
str(tmp_path / "snmpsim"),
"--data-dir",
str(source_data_dir),
# TODO: Fix port allocation to prevent problems with parallel tests
#"--agent-unix-endpoint="
"--agent-udpv4-endpoint=127.0.0.1:1337",
"--agent-udpv6-endpoint=[::1]:1337",
"--v3-user=authOnlyUser",
"--v3-auth-key=authOnlyUser",
"--v3-auth-proto=MD5",
]
p = subprocess.Popen(
cmd,
close_fds=True,
# Silence the very noisy output. May be useful to enable this for debugging tests
#stdout=open(os.devnull, "w"),
#stderr=subprocess.STDOUT,
)
# Ensure that snmpsim is ready for clients before starting with the tests
def is_listening():
if p.poll() is not None:
raise Exception("snmpsimd died. Exit code: %d" % p.poll())
num_sockets = 0
try:
for e in os.listdir("/proc/%d/fd" % p.pid):
try:
if os.readlink("/proc/%d/fd/%s" % (p.pid, e)).startswith("socket:"):
num_sockets += 1
except OSError:
pass
except OSError:
if p.poll() is None:
raise
raise Exception("snmpsimd died. Exit code: %d" % p.poll())
if num_sockets < 2:
return False
import netsnmp
var = netsnmp.Varbind("sysDescr.0")
result = netsnmp.snmpget(var, Version=2, DestHost="127.0.0.1:1337", Community="public")
if result is None or result[0] is None:
return False
return True
wait_until(is_listening, timeout=20)
yield
log.logger.setLevel(logging.INFO)
debug.disable()
logger.debug("Stopping snmpsimd...")
p.terminate()
p.wait()
logger.debug("Stopped snmpsimd.")