1 files changed, 94 insertions, 0 deletions
diff --git a/examples/v3arch/asyncore/manager/cmdgen/getnext-v2c-with-mib-compilation-and-lookup.py b/examples/v3arch/asyncore/manager/cmdgen/getnext-v2c-with-mib-compilation-and-lookup.py
new file mode 100644
index 0000000..d69abfe
--- /dev/null
+++ b/examples/v3arch/asyncore/manager/cmdgen/getnext-v2c-with-mib-compilation-and-lookup.py
@@ -0,0 +1,94 @@
+"""
+Walk Agent and resolve variables at MIB
++++++++++++++++++++++++++++++++++++++++
+
+Send a series of SNMP GETNEXT requests with the following options:
+
+* with SNMPv1, community 'public'
+* over IPv4/UDP
+* to an Agent at 195.218.195.228:161
+* for two OIDs in tuple form
+* stop on end-of-mib condition for both OIDs
+
+This script performs similar to the following Net-SNMP command:
+
+| $ snmpwalk -v1 -c public -ObentU 195.218.195.228 1.3.6.1.2.1.1 1.3.6.1.4.1.1
+
+"""#
+from pysnmp.entity import engine, config
+from pysnmp.carrier.asyncore.dgram import udp
+from pysnmp.entity.rfc3413 import cmdgen
+from pysnmp.smi import compiler, view, rfc1902
+
+# Create SNMP engine instance
+snmpEngine = engine.SnmpEngine()
+
+# Attach MIB compiler to SNMP Engine (MIB Builder)
+# This call will fail if PySMI is not present on the system
+compiler.addMibCompiler(snmpEngine.getMibBuilder())
+# ... alternatively, this call will not complain on missing PySMI
+#compiler.addMibCompiler(snmpEngine.getMibBuilder(), ifAvailable=True)
+
+# Used for MIB objects resolution
+mibViewController = view.MibViewController(snmpEngine.getMibBuilder())
+
+# 
+#
+# SNMPv1/2c setup
+#
+
+# SecurityName <-> CommunityName mapping
+config.addV1System(snmpEngine, 'my-area', 'public')
+
+# Specify security settings per SecurityName (SNMPv1 - 0, SNMPv2c - 1)
+config.addTargetParams(snmpEngine, 'my-creds', 'my-area', 'noAuthNoPriv', 1)
+
+#
+# Setup transport endpoint and bind it with security settings yielding
+# a target name
+#
+
+# UDP/IPv4
+config.addTransport(
+    snmpEngine,
+    udp.domainName,
+    udp.UdpSocketTransport().openClientMode()
+)
+config.addTargetAddr(
+    snmpEngine, 'my-router',
+    udp.domainName, ('195.218.195.228', 161),
+    'my-creds'
+)
+
+# Error/response receiver
+def cbFun(snmpEngine, sendRequestHandle, errorIndication,
+          errorStatus, errorIndex, varBindTable, cbCtx):
+    if errorIndication:
+        print(errorIndication)
+        return
+    # SNMPv1 response may contain noSuchName error *and* SNMPv2c exception,
+    # so we ignore noSuchName error here
+    if errorStatus and errorStatus != 2:
+        print('%s at %s' % (
+            errorStatus.prettyPrint(),
+            errorIndex and varBindTable[-1][int(errorIndex)-1][0] or '?'
+            )
+        )
+        return  # stop on error
+    for varBindRow in varBindTable:
+        for varBind in varBindRow:
+            print(rfc1902.ObjectType(rfc1902.ObjectIdentity(varBind[0]), varBind[1]).resolveWithMib(mibViewController).prettyPrint())
+    return 1 # signal dispatcher to continue
+
+# Prepare initial request to be sent
+cmdgen.NextCommandGenerator().sendVarBinds(
+    snmpEngine,
+    'my-router',
+    None, '',  # contextEngineId, contextName
+    [ rfc1902.ObjectType(rfc1902.ObjectIdentity('iso.org.dod')).resolveWithMib(mibViewController),
+      rfc1902.ObjectType(rfc1902.ObjectIdentity('IF-MIB', 'ifMIB')).resolveWithMib(mibViewController) ],
+    cbFun
+)
+
+# Run I/O dispatcher which would send pending queries and process responses
+snmpEngine.transportDispatcher.runDispatcher()