def processCommandResponse(pluginId, snmpEngine, pdu, trunkMsg, reqCtx):
varBinds = []
for oid, val in v2c.apiPDU.getVarBinds(pdu):
for oidPatt, valPatt, valRepl, replCount in rewriteList:
if oidPatt.match(str(oid)):
newVal = valPatt.sub(valRepl, str(val), replCount)
if not newVal:
newVal = nullifyMap.get(val.tagSet, v2c.Null())
val = val.clone(newVal)
break
varBinds.append((oid, val))
v2c.apiPDU.setVarBinds(pdu, varBinds)
return status.NEXT, pdu
# PDU v1/v2c two-way proxy
from pysnmp.proto import rfc1905, rfc3411, error
from pysnmp.proto.api import v1, v2c
from pysnmp import debug
# 2.1.1
__v1ToV2ValueMap = {
v1.Integer.tagSet: v2c.Integer32(),
v1.OctetString.tagSet: v2c.OctetString(),
v1.Null.tagSet: v2c.Null(),
v1.ObjectIdentifier.tagSet: v2c.ObjectIdentifier(),
v1.IpAddress.tagSet: v2c.IpAddress(),
v1.Counter.tagSet: v2c.Counter32(),
v1.Gauge.tagSet: v2c.Gauge32(),
v1.TimeTicks.tagSet: v2c.TimeTicks(),
v1.Opaque.tagSet: v2c.Opaque()
}
__v2ToV1ValueMap = { # XXX do not re-create same-type items?
v2c.Integer32.tagSet: v1.Integer(),
v2c.OctetString.tagSet: v1.OctetString(),
v2c.Null.tagSet: v1.Null(),
v2c.ObjectIdentifier.tagSet: v1.ObjectIdentifier(),
v2c.IpAddress.tagSet: v1.IpAddress(),
v2c.Counter32.tagSet: v1.Counter(),
v2c.Gauge32.tagSet: v1.Gauge(),
v2c.TimeTicks.tagSet: v1.TimeTicks(),
v2c.Opaque.tagSet: v1.Opaque()
}
for skip, begin, end in oidsList]
# we use this for pivoting dichotomy search
endOids = [x[2] for x in oidsList]
except Exception:
raise SnmpfwdError('%s: config file load failure: %s' %
(PLUGIN_NAME, sys.exc_info()[1]))
elif optionName == 'log-denials':
logDenials = optionValue == 'true'
info('%s: will log denied OIDs' % PLUGIN_NAME)
info('%s: plugin initialization complete' % PLUGIN_NAME)
null = v2c.Null()
noSuchInstance = v2c.NoSuchInstance()
endOfMibView = v2c.EndOfMibView()
def formatDenialMsg(pdu, trunkMsg):
denialMsg = '%s: callflow-id %s %s' % (
PLUGIN_NAME, trunkMsg['callflow-id'], pdu.__class__.__name__)
denialMsg += ' from %s:%s' % (trunkMsg['snmp-peer-address'],
trunkMsg['snmp-peer-port'])
denialMsg += ' at %s:%s' % (trunkMsg['snmp-bind-address'],
trunkMsg['snmp-bind-port'])
return denialMsg
def findAcl(oid, nextOid=False):
