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from __future__ import unicode_literals
import platform
import random
import re
import pytest
from time import sleep
from ezsnmp.exceptions import (
EzSNMPError,
EzSNMPConnectionError,
EzSNMPTimeoutError,
EzSNMPNoSuchObjectError,
EzSNMPNoSuchInstanceError,
EzSNMPNoSuchNameError,
)
from ezsnmp.session import Session
def test_session_invalid_snmp_version():
with pytest.raises(ValueError):
Session(version=4)
@pytest.mark.parametrize("version", [1, 2, 3])
def test_session_invalid_hostname(version):
with pytest.raises(EzSNMPConnectionError):
session = Session(hostname="invalid", version=version)
session.get("sysContact.0")
@pytest.mark.parametrize("version", [1, 2, 3])
def test_session_invalid_hostname_and_remote_port(version):
with pytest.raises(ValueError):
Session(hostname="localhost:162", remote_port=163, version=version)
@pytest.mark.parametrize("version", [1, 2, 3])
def test_session_hostname_and_remote_port_split(version):
session = Session(hostname="localhost:162", version=version)
assert session.hostname == "localhost"
assert session.remote_port == 162
@pytest.mark.parametrize("version", [1, 2, 3])
def test_session_invalid_port(version):
with pytest.raises(EzSNMPTimeoutError):
session = Session(remote_port=1234, version=version, timeout=0.2, retries=1)
session.get("sysContact.0")
@pytest.mark.parametrize("version", [1, 2, 3])
def test_session_ipv6_address(version):
session = Session(hostname="2001:db8::", version=version)
assert session.hostname == "2001:db8::"
assert session.connect_hostname == "2001:db8::"
@pytest.mark.parametrize("version", [1, 2, 3])
def test_session_ipv6_address_and_remote_port(version):
session = Session(
hostname="fd5d:12c9:2201:1:bc9c:f8ff:fe5c:57fa",
remote_port=162,
version=version,
)
assert session.hostname == "fd5d:12c9:2201:1:bc9c:f8ff:fe5c:57fa"
assert session.remote_port == 162
assert session.connect_hostname == "[fd5d:12c9:2201:1:bc9c:f8ff:fe5c:57fa]:162"
del session
@pytest.mark.parametrize("version", [1, 2, 3])
def test_session_ipv6_address_and_remote_port_split(version):
session = Session(hostname="[2001:db8::]:161", version=version)
assert session.hostname == "[2001:db8::]"
assert session.remote_port == 161
assert session.connect_hostname == "[2001:db8::]:161"
del session
@pytest.mark.parametrize("version", [1, 2, 3])
def test_session_ipv6_address_with_protocol_and_remote_port_split(version):
session = Session(hostname="udp6:[2001:db8::]:162", version=version)
assert session.hostname == "udp6:[2001:db8::]"
assert session.remote_port == 162
assert session.connect_hostname == "udp6:[2001:db8::]:162"
del session
@pytest.mark.parametrize("version", [1, 2, 3])
def test_session_ipv6_address_with_protocol(version):
session = Session(hostname="udp6:[2001:db8::]", version=version)
assert session.hostname == "udp6:[2001:db8::]"
assert session.connect_hostname == "udp6:[2001:db8::]"
del session
@pytest.mark.parametrize("version", [1, 2, 3])
def test_session_ipv6_is_not_ipv6(version):
with pytest.raises(ValueError):
Session(hostname="[foo::bar]:161", version=version)
@pytest.mark.parametrize("version", [1, 2, 3])
def test_session_ipv6_invalid_hostname_and_remote_port(version):
with pytest.raises(ValueError):
Session(
hostname="[fd5d:12c9:2201:1:bc9c:f8ff:fe5c:57fa]:161",
remote_port=162,
version=version,
)
def test_session_set_multiple_next(sess, reset_values):
# Destroy succeeds even if no row exists
sess.set(".1.3.6.1.6.3.12.1.2.1.9.116.101.115.116", 6)
success = sess.set_multiple(
[
(".1.3.6.1.6.3.12.1.2.1.2.116.101.115.116", ".1.3.6.1.6.1.1"),
(".1.3.6.1.6.3.12.1.2.1.3.116.101.115.116", "1234"),
(".1.3.6.1.6.3.12.1.2.1.9.116.101.115.116", 4),
]
)
assert success
res = sess.get_next(
["snmpTargetAddrTDomain", "snmpTargetAddrTAddress", "snmpTargetAddrRowStatus"]
)
assert len(res) == 3
assert res[0].oid == "snmpTargetAddrTDomain"
assert res[0].oid_index == "116.101.115.116"
assert res[0].value == ".1.3.6.1.6.1.1"
assert res[0].snmp_type == "OBJECTID"
assert res[1].oid == "snmpTargetAddrTAddress"
assert res[1].oid_index == "116.101.115.116"
assert res[1].value == "1234"
assert res[1].snmp_type == "OCTETSTR"
assert res[2].oid == "snmpTargetAddrRowStatus"
assert res[2].oid_index == "116.101.115.116"
assert res[2].value == "3"
assert res[2].snmp_type == "INTEGER"
del sess
def test_session_set_clear(sess):
res = sess.set(".1.3.6.1.6.3.12.1.2.1.9.116.101.115.116", 6)
assert res == 1
res = sess.get_next(
["snmpTargetAddrTDomain", "snmpTargetAddrTAddress", "snmpTargetAddrRowStatus"]
)
assert len(res) == 3
assert res[0].oid == "snmpUnavailableContexts"
assert res[0].oid_index == "0"
assert res[0].value == "0"
assert res[0].snmp_type == "COUNTER"
assert res[1].oid == "snmpUnavailableContexts"
assert res[1].oid_index == "0"
assert res[1].value == "0"
assert res[1].snmp_type == "COUNTER"
assert res[2].oid == "snmpUnavailableContexts"
assert res[2].oid_index == "0"
assert res[2].value == "0"
assert res[2].snmp_type == "COUNTER"
del sess
def test_session_get(sess):
res = sess.get([("sysUpTime", "0"), ("sysContact", "0"), ("sysLocation", "0")])
assert len(res) == 3
assert res[0].oid == "sysUpTimeInstance"
assert res[0].oid_index == ""
assert int(res[0].value) > 0
assert res[0].snmp_type == "TICKS"
assert res[1].oid == "sysContact"
assert res[1].oid_index == "0"
assert res[1].value == "G. S. Marzot <gmarzot@marzot.net>"
assert res[1].snmp_type == "OCTETSTR"
assert res[2].oid == "sysLocation"
assert res[2].oid_index == "0"
assert res[2].value == "my original location"
assert res[2].snmp_type == "OCTETSTR"
del sess
def test_session_get_use_numeric(sess):
sess.use_numeric = True
res = sess.get("sysContact.0")
assert res.oid == ".1.3.6.1.2.1.1.4"
assert res.oid_index == "0"
assert res.value == "G. S. Marzot <gmarzot@marzot.net>"
assert res.snmp_type == "OCTETSTR"
del sess
def test_session_get_use_sprint_value(sess):
sess.use_sprint_value = True
res = sess.get("sysUpTimeInstance")
assert res.oid == "sysUpTimeInstance"
assert res.oid_index == ""
assert re.match(r"^\d+:\d+:\d+:\d+\.\d+$", res.value)
assert res.snmp_type == "TICKS"
del sess
def test_session_get_use_enums(sess):
sess.use_enums = True
res = sess.get("ifAdminStatus.1")
assert res.oid == "ifAdminStatus"
assert res.oid_index == "1"
assert res.value == "up"
assert res.snmp_type == "INTEGER"
del sess
def test_session_get_next(sess):
res = sess.get_next([("sysUpTime", "0"), ("sysContact", "0"), ("sysLocation", "0")])
assert len(res) == 3
assert res[0].oid == "sysContact"
assert res[0].oid_index == "0"
assert res[0].value == "G. S. Marzot <gmarzot@marzot.net>"
assert res[0].snmp_type == "OCTETSTR"
assert res[1].oid == "sysName"
assert res[1].oid_index == "0"
assert res[1].value == platform.node()
assert res[1].snmp_type == "OCTETSTR"
assert res[2].oid == "sysORLastChange"
assert res[2].oid_index == "0"
assert int(res[2].value) >= 0
assert res[2].snmp_type == "TICKS"
del sess
def test_session_set(sess, reset_values):
res = sess.get(("sysLocation", "0"))
assert res.value != "my newer location"
success = sess.set(("sysLocation", "0"), "my newer location")
assert success
res = sess.get(("sysLocation", "0"))
assert res.value == "my newer location"
del sess
def test_session_set_multiple(sess, reset_values):
res = sess.get(["sysLocation.0", "nsCacheTimeout.1.3.6.1.2.1.2.2"])
assert res[0].value != "my newer location"
assert res[1].value != "160"
success = sess.set_multiple(
[
("sysLocation.0", "my newer location"),
(("nsCacheTimeout", ".1.3.6.1.2.1.2.2"), 160),
]
)
assert success
res = sess.get(["sysLocation.0", "nsCacheTimeout.1.3.6.1.2.1.2.2"])
assert res[0].value == "my newer location"
assert res[1].value == "160"
del sess
def test_session_get_bulk(sess): # noqa
if sess.version == 1:
with pytest.raises(EzSNMPError):
sess.get_bulk(
[
"sysUpTime",
"sysORLastChange",
"sysORID",
"sysORDescr",
"sysORUpTime",
],
2,
8,
)
else:
res = sess.get_bulk(
["sysUpTime", "sysORLastChange", "sysORID", "sysORDescr", "sysORUpTime"],
2,
8,
)
assert len(res) == 26
assert res[0].oid == "sysUpTimeInstance"
assert res[0].oid_index == ""
assert int(res[0].value) > 0
assert res[0].snmp_type == "TICKS"
assert res[4].oid == "sysORUpTime"
assert res[4].oid_index == "1"
assert int(res[4].value) >= 0
assert res[4].snmp_type == "TICKS"
del sess
def test_session_get_invalid_instance(sess):
# Sadly, SNMP v1 doesn't distuingish between an invalid instance and an
# invalid object ID, instead it excepts with noSuchName
if sess.version == 1:
with pytest.raises(EzSNMPNoSuchNameError):
sess.get("sysDescr.100")
else:
res = sess.get("sysDescr.100")
assert res.snmp_type == "NOSUCHINSTANCE"
def test_session_get_invalid_instance_with_abort_enabled(sess):
# Sadly, SNMP v1 doesn't distuingish between an invalid instance and an
# invalid object ID, instead it excepts with noSuchName
sess.abort_on_nonexistent = True
if sess.version == 1:
with pytest.raises(EzSNMPNoSuchNameError):
sess.get("sysDescr.100")
else:
with pytest.raises(EzSNMPNoSuchInstanceError):
sess.get("sysDescr.100")
def test_session_get_invalid_object(sess):
if sess.version == 1:
with pytest.raises(EzSNMPNoSuchNameError):
sess.get("iso")
else:
res = sess.get("iso")
assert res.snmp_type == "NOSUCHOBJECT"
def test_session_get_invalid_object_with_abort_enabled(sess):
sess.abort_on_nonexistent = True
if sess.version == 1:
with pytest.raises(EzSNMPNoSuchNameError):
sess.get("iso")
else:
with pytest.raises(EzSNMPNoSuchObjectError):
sess.get("iso")
def test_session_walk(sess):
res = sess.walk("system")
assert len(res) >= 7
assert res[0].oid == "sysDescr"
assert res[0].oid_index == "0"
assert platform.version() in res[0].value
assert res[0].snmp_type == "OCTETSTR"
assert res[3].oid == "sysContact"
assert res[3].oid_index == "0"
assert res[3].value == "G. S. Marzot <gmarzot@marzot.net>"
assert res[3].snmp_type == "OCTETSTR"
assert res[4].oid == "sysName"
assert res[4].oid_index == "0"
assert res[4].value == platform.node()
assert res[4].snmp_type == "OCTETSTR"
assert res[5].oid == "sysLocation"
assert res[5].oid_index == "0"
assert res[5].value == "my original location"
assert res[5].snmp_type == "OCTETSTR"
del sess
def test_session_bulkwalk(sess):
if sess.version == 1:
with pytest.raises(EzSNMPError):
sess.bulkwalk("system")
else:
res = sess.walk("system")
assert len(res) >= 7
assert res[0].oid == "sysDescr"
assert res[0].oid_index == "0"
assert platform.version() in res[0].value
assert res[0].snmp_type == "OCTETSTR"
assert res[3].oid == "sysContact"
assert res[3].oid_index == "0"
assert res[3].value == "G. S. Marzot <gmarzot@marzot.net>"
assert res[3].snmp_type == "OCTETSTR"
assert res[4].oid == "sysName"
assert res[4].oid_index == "0"
assert res[4].value == platform.node()
assert res[4].snmp_type == "OCTETSTR"
assert res[5].oid == "sysLocation"
assert res[5].oid_index == "0"
assert res[5].value == "my original location"
assert res[5].snmp_type == "OCTETSTR"
del sess
def test_session_walk_all(sess):
# Introduce some radom sleep to prevent us DDoSing our own snmp test server.
sleep(random.uniform(0.1, 0.500))
# OID 1.3.6.1.6.3.16.1.5.2.1.6.6.95.110.111.110.101.95.1.2
# or SNMP-VIEW-BASED-ACM-MIB::vacmViewTreeFamilyStatus."_none_".1.2
# appears to return a noSuchName error when using v1, but not with v2c.
# This may be a Net-SNMP snmpd bug.
if sess.version == 1:
with pytest.raises(EzSNMPNoSuchNameError):
sess.walk(".")
else:
res = sess.walk(".")
assert len(res) > 0
assert res[0].oid == "sysDescr"
assert res[0].oid_index == "0"
assert platform.version() in res[0].value
assert res[0].snmp_type == "OCTETSTR"
assert res[3].oid == "sysContact"
assert res[3].oid_index == "0"
assert res[3].value == "G. S. Marzot <gmarzot@marzot.net>"
assert res[3].snmp_type == "OCTETSTR"
assert res[4].oid == "sysName"
assert res[4].oid_index == "0"
assert res[4].value == platform.node()
assert res[4].snmp_type == "OCTETSTR"
assert res[5].oid == "sysLocation"
assert res[5].oid_index == "0"
assert res[5].value == "my original location"
assert res[5].snmp_type == "OCTETSTR"
del sess
def test_session_update():
s = Session(version=3)
ptr = s.sess_ptr
s.version = 1
s.update_session()
assert ptr != s.sess_ptr
s.tunneled = True
ptr = s.sess_ptr
with pytest.raises(ValueError):
s.update_session()
assert ptr == s.sess_ptr
s.update_session(tunneled=False, version=2)
assert s.version == 2
assert s.tunneled is False
del s
|
