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"""
SNMPv3 INFORM, auth: MD5, privacy: none
+++++++++++++++++++++++++++++++++++++++
Send SNMP INFORM notification using the following options:
* SNMPv3
* with user 'usr-md5-none', auth: MD5, priv NONE
* over IPv4/UDP
* to a Manager at demo.pysnmp.com:162
* send INFORM notification
* with TRAP ID 'warmStart' specified as an OID
* include managed object information 1.3.6.1.2.1.1.5.0 = 'system name'
Functionally similar to:
| $ snmpinform -v3 -l authNoPriv -u usr-md5-none -A authkey1 demo.pysnmp.com 0 1.3.6.1.6.3.1.1.5.1 1.3.6.1.2.1.1.5.0 = 'system name'
"""#
from pysnmp.entity import engine, config
from pysnmp.carrier.asyncore.dgram import udp
from pysnmp.entity.rfc3413 import ntforg
from pysnmp.proto.api import v2c
# Create SNMP engine instance
snmpEngine = engine.SnmpEngine()
# Add USM user
config.addV3User(snmpEngine, "usr-md5-none", config.usmHMACMD5AuthProtocol, "authkey1")
config.addTargetParams(snmpEngine, "my-creds", "usr-md5-none", "authNoPriv")
# Setup transport endpoint and bind it with security settings yielding
# a target name
config.addTransport(
snmpEngine, udp.domainName, udp.UdpSocketTransport().openClientMode()
)
config.addTargetAddr(
snmpEngine,
"my-nms",
udp.domainName,
("127.0.0.1", 162),
"my-creds",
tagList="all-my-managers",
)
# Specify what kind of notification should be sent (TRAP or INFORM),
# to what targets (chosen by tag) and what filter should apply to
# the set of targets (selected by tag)
config.addNotificationTarget(
snmpEngine, "my-notification", "my-filter", "all-my-managers", "inform"
)
# Allow NOTIFY access to Agent's MIB by this SNMP model (3), securityLevel
# and SecurityName
config.addContext(snmpEngine, "")
config.addVacmUser(snmpEngine, 3, "usr-md5-none", "authNoPriv", (), (), (1, 3, 6))
# *** SNMP engine configuration is complete by this line ***
# Create Notification Originator App instance.
ntfOrg = ntforg.NotificationOriginator()
# Error/confirmation receiver
# noinspection PyUnusedLocal,PyUnusedLocal,PyUnusedLocal,PyUnusedLocal,PyUnusedLocal
def cbFun(
snmpEngine,
sendRequestHandle,
errorIndication,
errorStatus,
errorIndex,
varBinds,
cbCtx,
):
print(
"Notification {}, status - {}".format(
sendRequestHandle, errorIndication and errorIndication or "delivered"
)
)
# Build and submit notification message to dispatcher
sendRequestHandle = ntfOrg.sendVarBinds(
snmpEngine,
"my-notification", # notification targets
None,
"", # contextEngineId, contextName
# var-binds: SNMPv2-MIB::coldStart, ...
[
(
(1, 3, 6, 1, 6, 3, 1, 1, 5, 1),
v2c.ObjectIdentifier((1, 3, 6, 1, 6, 3, 1, 1, 5, 1)),
),
((1, 3, 6, 1, 2, 1, 1, 5, 0), v2c.OctetString("system name")),
],
cbFun,
)
print("Notification %s scheduled to be sent" % sendRequestHandle)
# Run I/O dispatcher which would send pending message and process response
snmpEngine.transportDispatcher.runDispatcher()
|
