1 files changed, 86 insertions, 0 deletions
diff --git a/examples/v3arch/asyncore/manager/cmdgen/getnext-v3-pull-subtree.py b/examples/v3arch/asyncore/manager/cmdgen/getnext-v3-pull-subtree.py
new file mode 100644
index 0000000..5edc744
--- /dev/null
+++ b/examples/v3arch/asyncore/manager/cmdgen/getnext-v3-pull-subtree.py
@@ -0,0 +1,86 @@
+"""
+Pull MIB subtree
+++++++++++++++++
+
+Send a series of SNMP GETNEXT requests
+* with SNMPv3 with user 'usr-none-none', no auth and no privacy protocols
+* over IPv4/UDP
+* to an Agent at 195.218.195.228:161
+* for an OID in string form
+* stop whenever received OID goes out of initial prefix (it may be a table)
+
+This script performs similar to the following Net-SNMP command:
+
+| $ snmpwalk -v3 -l noAuthNoPriv -u usr-none-none -ObentU 195.218.195.228:161  1.3.6.1.2.1.1 
+
+"""#
+from pysnmp.entity import engine, config
+from pysnmp.carrier.asyncore.dgram import udp
+from pysnmp.entity.rfc3413 import cmdgen
+from pysnmp.proto import rfc1902
+
+# Initial OID prefix
+initialOID = rfc1902.ObjectName('1.3.6.1.2.1.1')
+
+# Create SNMP engine instance
+snmpEngine = engine.SnmpEngine()
+
+#
+# SNMPv3/USM setup
+#
+
+# user: usr-none-none, auth: none, priv: none
+config.addV3User(
+    snmpEngine, 'usr-none-none',
+)
+config.addTargetParams(snmpEngine, 'my-creds', 'usr-none-none', 'noAuthNoPriv')
+
+#
+# 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
+    if errorStatus:
+        print('%s at %s' % (
+            errorStatus.prettyPrint(),
+            errorIndex and varBindTable[-1][int(errorIndex)-1][0] or '?'
+            )
+        )
+        return  # stop on error
+    for varBindRow in varBindTable:
+        for oid, val in varBindRow:
+            if initialOID.isPrefixOf(oid):
+                print('%s = %s' % (oid.prettyPrint(), val.prettyPrint()))
+            else:
+                return False # signal dispatcher to stop
+    return True # signal dispatcher to continue
+
+# Prepare initial request to be sent
+cmdgen.NextCommandGenerator().sendVarBinds(
+    snmpEngine,
+    'my-router',
+    None, '',  # contextEngineId, contextName
+    [ (initialOID, None) ],
+    cbFun
+)
+
+# Run I/O dispatcher which would send pending queries and process responses
+snmpEngine.transportDispatcher.runDispatcher()