1 files changed, 82 insertions, 0 deletions
diff --git a/examples/v3arch/asyncore/agent/cmdrsp/v2c-custom-scalar-mib-objects.py b/examples/v3arch/asyncore/agent/cmdrsp/v2c-custom-scalar-mib-objects.py
new file mode 100644
index 0000000..196ee9c
--- /dev/null
+++ b/examples/v3arch/asyncore/agent/cmdrsp/v2c-custom-scalar-mib-objects.py
@@ -0,0 +1,82 @@
+"""
+Implementing scalar MIB objects
++++++++++++++++++++++++++++++++
+
+Listen and respond to SNMP GET/SET/GETNEXT/GETBULK queries with
+the following options:
+
+* SNMPv2c
+* with SNMP community "public"
+* serving custom Managed Object Instance defined within this script
+* allow read access only to the subtree where the custom MIB object resides
+* over IPv4/UDP, listening at 127.0.0.1:161
+
+The following Net-SNMP commands will walk this Agent:
+
+| $ snmpwalk -v2c -c public 127.0.0.1 .1.3.6
+
+"""#
+import sys
+from pysnmp.entity import engine, config
+from pysnmp.entity.rfc3413 import cmdrsp, context
+from pysnmp.carrier.asyncore.dgram import udp
+from pysnmp.proto.api import v2c
+
+# Create SNMP engine
+snmpEngine = engine.SnmpEngine()
+
+# Transport setup
+
+# UDP over IPv4
+config.addTransport(
+    snmpEngine,
+    udp.domainName,
+    udp.UdpTransport().openServerMode(('127.0.0.1', 161))
+)
+
+# SNMPv2c setup
+
+# SecurityName <-> CommunityName mapping.
+config.addV1System(snmpEngine, 'my-area', 'public')
+
+# Allow read MIB access for this user / securityModels at VACM
+config.addVacmUser(snmpEngine, 2, 'my-area', 'noAuthNoPriv', (1,3,6,5))
+
+# Create an SNMP context
+snmpContext = context.SnmpContext(snmpEngine)
+
+# --- create custom Managed Object Instance ---
+
+mibBuilder = snmpContext.getMibInstrum().getMibBuilder()
+
+MibScalar, MibScalarInstance = mibBuilder.importSymbols(
+    'SNMPv2-SMI', 'MibScalar', 'MibScalarInstance'
+)
+
+class MyStaticMibScalarInstance(MibScalarInstance):
+    def getValue(self, name, idx):
+        return self.getSyntax().clone(
+            'Python %s running on a %s platform' % (sys.version, sys.platform)
+        )
+
+mibBuilder.exportSymbols(
+  '__MY_MIB', MibScalar((1,3,6,5,1), v2c.OctetString()),
+              MyStaticMibScalarInstance((1,3,6,5,1), (0,), v2c.OctetString())
+)
+
+# --- end of Managed Object Instance initialization ----
+
+# Register SNMP Applications at the SNMP engine for particular SNMP context
+cmdrsp.GetCommandResponder(snmpEngine, snmpContext)
+cmdrsp.NextCommandResponder(snmpEngine, snmpContext)
+cmdrsp.BulkCommandResponder(snmpEngine, snmpContext)
+
+# Register an imaginary never-ending job to keep I/O dispatcher running forever
+snmpEngine.transportDispatcher.jobStarted(1)
+
+# Run I/O dispatcher which would receive queries and send responses
+try:
+    snmpEngine.transportDispatcher.runDispatcher()
+except:
+    snmpEngine.transportDispatcher.closeDispatcher()
+    raise