a dozen of lightweight Twisted-based example scripts replaced more

complex example implementations used previously.

1 files changed, 94 insertions, 0 deletions

diff --git a/examples/v3arch/twisted/agent/ntforg/trap-v3.py b/examples/v3arch/twisted/agent/ntforg/trap-v3.py
new file mode 100644
index 0000000..a4aee37
--- /dev/null
+++ b/examples/v3arch/twisted/agent/ntforg/trap-v3.py
@@ -0,0 +1,94 @@
+#
+# Notification Originator
+#
+# Send SNMP TRAP notification using the following options:
+#
+# * SNMPv3
+# * with user 'usr-md5-des', auth: MD5, priv DES
+# * over IPv4/UDP
+# * using Twisted framework for network transport
+# * send TRAP notification
+# * to a Manager at 127.0.0.1:162
+# * with TRAP ID 'warmStart' specified as an OID
+# * include managed object information 1.3.6.1.2.1.1.5.0 = 'system name'
+#
+from twisted.internet import reactor
+from pysnmp.entity import engine, config
+from pysnmp.carrier.twisted import dispatch
+from pysnmp.carrier.twisted.dgram import udp
+from pysnmp.entity.rfc3413 import context
+from pysnmp.entity.rfc3413.twisted import ntforg
+from pysnmp.proto import rfc1902
+
+# Create SNMP engine instance with specific (and locally unique)
+# SnmpEngineId -- it must also be known to the receiving party
+# and configured at its VACM users table.
+snmpEngine = engine.SnmpEngine(
+    snmpEngineID=rfc1902.OctetString(hexValue='8000000001020304')
+)
+
+# Set Twisted dispatcher
+snmpEngine.registerTransportDispatcher(dispatch.TwistedDispatcher())
+
+# SNMPv3/USM setup
+
+# Add USM user
+config.addV3User(
+    snmpEngine, 'usr-md5-des',
+    config.usmHMACMD5AuthProtocol, 'authkey1',
+    config.usmDESPrivProtocol, 'privkey1'
+)
+config.addTargetParams(snmpEngine, 'my-creds', 'usr-md5-des', 'authPriv')
+
+# Transport setup
+
+# Setup transport endpoint and bind it with security settings yielding
+# a target name
+config.addSocketTransport(
+    snmpEngine,
+    udp.domainName,
+    udp.UdpTwistedTransport().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', 'trap'
+)
+
+# Allow NOTIFY access to Agent's MIB by this SNMP model (3), securityLevel
+# and SecurityName
+config.addContext(snmpEngine, '')
+config.addVacmUser(snmpEngine, 3, 'usr-md5-des', 'authPriv', (), (), (1,3,6))
+
+# Create default SNMP context where contextEngineId == SnmpEngineId
+snmpContext = context.SnmpContext(snmpEngine)
+
+# Create Notification Originator App instance. 
+ntfOrg = ntforg.NotificationOriginator(snmpContext)
+ 
+# Build and submit notification message to dispatcher
+ntfOrg.sendNotification(
+    snmpEngine,
+    # Notification targets
+    'my-notification',
+    # Trap OID (SNMPv2-MIB::coldStart)
+    (1,3,6,1,6,3,1,1,5,1),
+    # ( (oid, value), ... )
+    ( ((1,3,6,1,2,1,1,5,0), rfc1902.OctetString('system name')), )
+)
+
+print('Notification is scheduled to be sent')
+
+# Schedule Twisted mainloop shutdown shortly
+reactor.callWhenRunning(lambda: reactor.stop())
+
+# Run Twisted main loop
+reactor.run()