def NativeVal2Snmp(nativeVal, snmpValueType):
"""
:param nativeVal: native for python values, i.e. int/float/str etc.
:return: The SNMP suitable value
"""
if snmpValueType is None:
# Try to autodetect desired SNMP value type
if isinstance(nativeVal, int):
result = v2c.Integer(nativeVal)
elif isinstance(nativeVal, float):
result = v2c.Integer(nativeVal)
elif isinstance(nativeVal, str):
if IsValidIpv4Address(nativeVal):
result = v2c.IpAddress(nativeVal)
else:
result = v2c.OctetString(nativeVal)
else:
raise TypeError(
"Unable to autodetect SNMP value type. Please supply "
"the snmpValueType argument."
", ".join(list(TYPES.keys())))
else:
if snmpValueType not in TYPES:
raise ValueError(
"'{}' is not one of the supported types: {}".format(
snmpValueType, ", ".join(list(TYPES.keys()))))
result = TYPES[snmpValueType](nativeVal)
return result
# PDU v1/v2c two-way proxy
from pysnmp.proto import rfc1905, rfc3411, error
from pysnmp.proto.api import v1, v2c
from pysnmp import debug
# 2.1.1
__v1ToV2ValueMap = {
v1.Integer.tagSet: v2c.Integer32(),
v1.OctetString.tagSet: v2c.OctetString(),
v1.Null.tagSet: v2c.Null(),
v1.ObjectIdentifier.tagSet: v2c.ObjectIdentifier(),
v1.IpAddress.tagSet: v2c.IpAddress(),
v1.Counter.tagSet: v2c.Counter32(),
v1.Gauge.tagSet: v2c.Gauge32(),
v1.TimeTicks.tagSet: v2c.TimeTicks(),
v1.Opaque.tagSet: v2c.Opaque()
}
__v2ToV1ValueMap = { # XXX do not re-create same-type items?
v2c.Integer32.tagSet: v1.Integer(),
v2c.OctetString.tagSet: v1.OctetString(),
v2c.Null.tagSet: v1.Null(),
v2c.ObjectIdentifier.tagSet: v1.ObjectIdentifier(),
v2c.IpAddress.tagSet: v1.IpAddress(),
v2c.Counter32.tagSet: v1.Counter(),
v2c.Gauge32.tagSet: v1.Gauge(),
v2c.TimeTicks.tagSet: v1.TimeTicks(),
v2c.Opaque.tagSet: v1.Opaque()
}
# Build and submit notification message to dispatcher
ntfOrg.sendVarBinds(
snmpEngine,
# Notification targets
'my-notification', # notification targets
None,
'', # contextEngineId, contextName
# var-binds
[
# Uptime value with 12345
(v2c.ObjectIdentifier('1.3.6.1.2.1.1.3.0'), v2c.TimeTicks(12345)),
# trap OID: Generic Trap #6 (enterpriseSpecific)
# and Specific Trap 432
(v2c.ObjectIdentifier('1.3.6.1.6.3.1.1.4.1.0'),
v2c.ObjectIdentifier('1.3.6.1.4.1.20408.4.1.1.2.0.432')),
# Agent Address with '127.0.0.1'
(v2c.ObjectIdentifier('1.3.6.1.6.3.18.1.3.0'),
v2c.IpAddress('127.0.0.1')),
# Enterprise OID with 1.3.6.1.4.1.20408.4.1.1.2
(v2c.ObjectIdentifier('1.3.6.1.6.3.1.1.4.3.0'),
v2c.ObjectIdentifier('1.3.6.1.4.1.20408.4.1.1.2')),
# managed object '1.3.6.1.2.1.1.1.0' = 'my system'
(v2c.ObjectIdentifier('1.3.6.1.2.1.1.1.0'),
v2c.OctetString('my system'))
])
print('Notification is scheduled to be sent')
# Run I/O dispatcher which would send pending message and stop
snmpEngine.transportDispatcher.runDispatcher()