/usr/lib/python3/dist-packages/pysnmp/hlapi/asyncore/ntforg.py is in python3-pysnmp4 4.4.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | #
# This file is part of pysnmp software.
#
# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
# License: http://snmplabs.com/pysnmp/license.html
#
from pysnmp.smi.rfc1902 import *
from pysnmp.entity.rfc3413 import ntforg
from pysnmp.hlapi.auth import *
from pysnmp.hlapi.context import *
from pysnmp.hlapi.lcd import *
from pysnmp.hlapi.varbinds import *
from pysnmp.hlapi.asyncore.transport import *
__all__ = ['sendNotification']
vbProcessor = NotificationOriginatorVarBinds()
lcd = NotificationOriginatorLcdConfigurator()
def sendNotification(snmpEngine, authData, transportTarget, contextData,
notifyType, varBinds, cbFun=None, cbCtx=None,
lookupMib=False):
"""Send SNMP notification.
Based on passed parameters, prepares SNMP TRAP or INFORM
notification (:RFC:`1905#section-4.2.6`) and schedules its
transmission by I/O framework at a later point of time.
Parameters
----------
snmpEngine : :py:class:`~pysnmp.hlapi.SnmpEngine`
Class instance representing SNMP engine.
authData : :py:class:`~pysnmp.hlapi.CommunityData` or :py:class:`~pysnmp.hlapi.UsmUserData`
Class instance representing SNMP credentials.
transportTarget : :py:class:`~pysnmp.hlapi.asyncore.UdpTransportTarget` or :py:class:`~pysnmp.hlapi.asyncore.Udp6TransportTarget`
Class instance representing transport type along with SNMP peer
address.
contextData : :py:class:`~pysnmp.hlapi.ContextData`
Class instance representing SNMP ContextEngineId and ContextName
values.
notifyType : str
Indicates type of notification to be sent. Recognized literal
values are *trap* or *inform*.
varBinds : tuple
Single :py:class:`~pysnmp.smi.rfc1902.NotificationType` class
instance representing a minimum sequence of MIB variables
required for particular notification type. Alternatively,
a sequence of :py:class:`~pysnmp.smi.rfc1902.ObjectType`
objects could be passed instead. In the latter case it is up to
the user to ensure proper Notification PDU contents.
Other Parameters
----------------
cbFun : callable
user-supplied callable that is invoked to pass SNMP response
to *INFORM* notification or error to user at a later point of
time. The `cbFun` callable is never invoked for *TRAP* notifications.
cbCtx : object
user-supplied object passing additional parameters to/from
`cbFun`.
lookupMib : bool
`lookupMib` - load MIB and resolve response MIB variables at
the cost of slightly reduced performance. Default is `True`.
Notes
-----
User-supplied `cbFun` callable must have the following call
signature:
* snmpEngine (:py:class:`~pysnmp.hlapi.SnmpEngine`):
Class instance representing SNMP engine.
* sendRequestHandle (int): Unique request identifier. Can be used
for matching multiple ongoing *INFORM* notifications with received
responses.
* errorIndication (str): True value indicates SNMP engine error.
* errorStatus (str): True value indicates SNMP PDU error.
* errorIndex (int): Non-zero value refers to `varBinds[errorIndex-1]`
* varBinds (tuple): A sequence of
:py:class:`~pysnmp.smi.rfc1902.ObjectType` class instances
representing MIB variables returned in SNMP response in exactly
the same order as `varBinds` in request.
* `cbCtx` : Original user-supplied object.
Returns
-------
sendRequestHandle : int
Unique request identifier. Can be used for matching received
responses with ongoing *INFORM* requests. Returns `None` for
*TRAP* notifications.
Raises
------
PySnmpError
Or its derivative indicating that an error occurred while
performing SNMP operation.
Examples
--------
>>> from pysnmp.hlapi.asyncore import *
>>>
>>> snmpEngine = SnmpEngine()
>>> sendNotification(
... snmpEngine,
... CommunityData('public'),
... UdpTransportTarget(('demo.snmplabs.com', 162)),
... ContextData(),
... 'trap',
... NotificationType(ObjectIdentity('SNMPv2-MIB', 'coldStart')),
... )
>>> snmpEngine.transportDispatcher.runDispatcher()
>>>
"""
# noinspection PyShadowingNames
def __cbFun(snmpEngine, sendRequestHandle, errorIndication,
errorStatus, errorIndex, varBinds, cbCtx):
lookupMib, cbFun, cbCtx = cbCtx
return cbFun and cbFun(
snmpEngine, sendRequestHandle, errorIndication,
errorStatus, errorIndex,
vbProcessor.unmakeVarBinds(
snmpEngine, varBinds, lookupMib
), cbCtx
)
notifyName = lcd.configure(snmpEngine, authData, transportTarget,
notifyType)
return ntforg.NotificationOriginator().sendVarBinds(
snmpEngine, notifyName,
contextData.contextEngineId, contextData.contextName,
vbProcessor.makeVarBinds(snmpEngine, varBinds),
__cbFun, (lookupMib, cbFun, cbCtx)
)
|