def setCmd(self, authData, transportTarget, varBinds, cbInfo):
(cbFun, cbCtx) = cbInfo
addrName, paramsName = self.cfgCmdGen(
authData, transportTarget
)
__varBinds = []
for varName, varVal in varBinds:
name, oid = mibvar.mibNameToOid(
self.mibViewController, varName
)
if not isinstance(varVal, base.AbstractSimpleAsn1Item):
((symName, modName), suffix) = mibvar.oidToMibName(
self.mibViewController, name + oid
)
syntax = mibvar.cloneFromMibValue(
self.mibViewController, modName, symName, varVal
)
if syntax is None:
raise error.PySnmpError(
'Value type MIB lookup failed for %r' % (varName,)
)
varVal = syntax.clone(varVal)
__varBinds.append((name + oid, varVal))
return cmdgen.SetCommandGenerator().sendReq(
self.snmpEngine, addrName, __varBinds, cbFun, cbCtx,
authData.contextEngineId, authData.contextName
)
def snmp_getnext_multiple(self, auth_data, transport, *object_names):
self.__lock.acquire()
try:
appReturn = {}
varBindHead = map(lambda (x,y): univ.ObjectIdentifier(x+y),
map((lambda x,g=self.__generator:
mibvar.mibNameToOid(g.mibViewController,x)),
object_names))
varBindTotalTable = []
cbCtx = (varBindHead, varBindTotalTable, appReturn)
self.__generator.asyncNextCmd(auth_data, transport, object_names,
(self.multi_callback, cbCtx))
# Work around Eaton Powerare UPS's incorrect end-of-getnext packet.
try:
self.__dispatcher()
except error.ProtocolError, e:
# Some Eaton Powerware UPS SNMP stacks respond with an out
# of range error-index (2) for the final getnext response
# of NoSuchName.
if not varBindTotalTable:
msglog.log("SNMP", msglog.types.WARN,
"Caught ProtocolError with empty"
" varBindTotalTable, re-raising.")
msglog.log("SNMP", msglog.types.DB, "cbCtx: %r" % cbCtx)
raise
msglog.exception()
msglog.log("SNMP", msglog.types.WARN,
"Ignoring protocol error to allow (partial)"
" discovery.")
appReturn['errorIndication'] = None
appReturn['errorStatus'] = None
appReturn['errorIndex'] = 0
appReturn['varBindTable'] = varBindTotalTable
return self.multi_varbinds_result(cbCtx)
def makeReadVarBinds(self, varNames):
varBinds = []
for varName in varNames:
if isinstance(varName[0], self.intTypes):
name = varName
else:
name, oid = mibvar.mibNameToOid(
self.mibViewController, varName
)
name = name + oid
varBinds.append((name, self._null))
return varBinds
def sendNotification(
self, authData, transportTarget, notifyType,
notificationType, varBinds=None, cbInfo=(None, None)
):
(cbFun, cbCtx) = cbInfo
tagList = str(transportTarget.transportAddr).replace(' ', '_')
notifyName = self.cfgNtfOrg(authData, transportTarget,
notifyType, tagList)
if notificationType:
name, oid = mibvar.mibNameToOid(
self.mibViewController, notificationType
)
notificationType = name + oid
if varBinds:
__varBinds = []
for varName, varVal in varBinds:
name, oid = mibvar.mibNameToOid(
self.mibViewController, varName
)
if not isinstance(varVal, base.Asn1ItemBase):
((symName, modName), suffix) = mibvar.oidToMibName(
self.mibViewController, name + oid
)
syntax = mibvar.cloneFromMibValue(
self.mibViewController, modName, symName, varVal
)
if syntax is None:
raise error.PySnmpError(
'Value type MIB lookup failed for %r' % (varName,)
)
varVal = syntax.clone(varVal)
__varBinds.append((name + oid, varVal))
else:
__varBinds = None
return ntforg.NotificationOriginator(self.snmpContext).sendNotification(self.snmpEngine, notifyName, notificationType, __varBinds, cbFun, cbCtx)
def snmp_getbulk_multiple(self, auth_data, transport, non_repeaters,
max_repetitions, *object_names):
self.__lock.acquire()
try:
appReturn = {}
varBindHead = map(
lambda (x, y): univ.ObjectIdentifier(x + y),
map((lambda x, g=self.__generator: mibvar.mibNameToOid(
g.mibViewController, x)), object_names))
varBindTotalTable = []
cbCtx = (varBindHead, varBindTotalTable, appReturn)
self.__generator.asyncBulkCmd(auth_data, transport, non_repeaters,
max_repetitions, object_names,
(self.multi_callback, cbCtx))
self.__dispatcher()
return self.multi_varbinds_result(cbCtx)
finally:
self.__lock.release()
raise EUnreachableCode()
def snmp_getbulk_multiple(self, auth_data, transport,
non_repeaters, max_repetitions, *object_names):
self.__lock.acquire()
try:
appReturn = {}
varBindHead = map(lambda (x,y): univ.ObjectIdentifier(x+y),
map((lambda x,g=self.__generator:
mibvar.mibNameToOid(g.mibViewController,x)),
object_names))
varBindTotalTable = []
cbCtx = (varBindHead, varBindTotalTable, appReturn)
self.__generator.asyncBulkCmd(
auth_data, transport, non_repeaters, max_repetitions,
object_names, (self.multi_callback, cbCtx)
)
self.__dispatcher()
return self.multi_varbinds_result(cbCtx)
finally:
self.__lock.release()
raise EUnreachableCode()
def snmp_getnext_multiple(self, auth_data, transport, *object_names):
self.__lock.acquire()
try:
appReturn = {}
varBindHead = map(
lambda (x, y): univ.ObjectIdentifier(x + y),
map((lambda x, g=self.__generator: mibvar.mibNameToOid(
g.mibViewController, x)), object_names))
varBindTotalTable = []
cbCtx = (varBindHead, varBindTotalTable, appReturn)
self.__generator.asyncNextCmd(auth_data, transport, object_names,
(self.multi_callback, cbCtx))
# Work around Eaton Powerare UPS's incorrect end-of-getnext packet.
try:
self.__dispatcher()
except error.ProtocolError, e:
# Some Eaton Powerware UPS SNMP stacks respond with an out
# of range error-index (2) for the final getnext response
# of NoSuchName.
if not varBindTotalTable:
msglog.log(
"SNMP", msglog.types.WARN,
"Caught ProtocolError with empty"
" varBindTotalTable, re-raising.")
msglog.log("SNMP", msglog.types.DB, "cbCtx: %r" % cbCtx)
raise
msglog.exception()
msglog.log(
"SNMP", msglog.types.WARN,
"Ignoring protocol error to allow (partial)"
" discovery.")
appReturn['errorIndication'] = None
appReturn['errorStatus'] = None
appReturn['errorIndex'] = 0
appReturn['varBindTable'] = varBindTotalTable
return self.multi_varbinds_result(cbCtx)
class CommandGenerator(AsynCommandGenerator):
def getCmd(self, authData, transportTarget, *varNames):
def __cbFun(sendRequestHandle, errorIndication, errorStatus,
errorIndex, varBinds, appReturn):
appReturn['errorIndication'] = errorIndication
appReturn['errorStatus'] = errorStatus
appReturn['errorIndex'] = errorIndex
appReturn['varBinds'] = varBinds
appReturn = {}
self.asyncGetCmd(authData, transportTarget, varNames,
(__cbFun, appReturn))
self.snmpEngine.transportDispatcher.runDispatcher()
return (appReturn['errorIndication'], appReturn['errorStatus'],
appReturn['errorIndex'], appReturn['varBinds'])
def setCmd(self, authData, transportTarget, *varBinds):
def __cbFun(sendRequestHandle, errorIndication, errorStatus,
errorIndex, varBinds, appReturn):
appReturn['errorIndication'] = errorIndication
appReturn['errorStatus'] = errorStatus
appReturn['errorIndex'] = errorIndex
appReturn['varBinds'] = varBinds
appReturn = {}
self.asyncSetCmd(authData, transportTarget, varBinds,
(__cbFun, appReturn))
self.snmpEngine.transportDispatcher.runDispatcher()
return (appReturn['errorIndication'], appReturn['errorStatus'],
appReturn['errorIndex'], appReturn['varBinds'])
def nextCmd(self, authData, transportTarget, *varNames):
def __cbFun(sendRequestHandle, errorIndication, errorStatus,
errorIndex, varBindTable, (varBindHead, varBindTotalTable,
appReturn)):
if errorIndication or errorStatus:
appReturn['errorIndication'] = errorIndication
appReturn['errorStatus'] = errorStatus
appReturn['errorIndex'] = errorIndex
appReturn['varBindTable'] = varBindTable
return
else:
varBindTableRow = varBindTable[-1]
for idx in range(len(varBindTableRow)):
name, val = varBindTableRow[idx]
# XXX extra rows
if val is not None and varBindHead[idx].isPrefixOf(name):
break
else:
appReturn['errorIndication'] = errorIndication
appReturn['errorStatus'] = errorStatus
appReturn['errorIndex'] = errorIndex
appReturn['varBindTable'] = varBindTotalTable
return
varBindTotalTable.extend(varBindTable)
return 1 # continue table retrieval
varBindHead = map(
lambda (x, y): univ.ObjectIdentifier(x + y),
map(lambda x, self=self: mibvar.mibNameToOid(
self.mibViewController, x),
varNames))
appReturn = {}
self.asyncNextCmd(authData, transportTarget, varNames,
(__cbFun, (varBindHead, [], appReturn)))
self.snmpEngine.transportDispatcher.runDispatcher()
return (appReturn['errorIndication'], appReturn['errorStatus'],
appReturn['errorIndex'], appReturn['varBindTable'])
class AsynCommandGenerator:
_null = univ.Null('')
def __init__(self, snmpEngine=None):
if snmpEngine is None:
self.snmpEngine = engine.SnmpEngine()
else:
self.snmpEngine = snmpEngine
self.mibViewController = view.MibViewController(
self.snmpEngine.msgAndPduDsp.mibInstrumController.mibBuilder)
self.__knownAuths = {}
self.__knownTransports = {}
self.__knownTransportAddrs = {}
def __del__(self):
self.uncfgCmdGen()
def cfgCmdGen(self, authData, transportTarget, tagList=''):
if self.__knownAuths.has_key(authData):
paramsName = self.__knownAuths[authData]
else:
paramsName = 'p%s' % nextID()
if isinstance(authData, CommunityData):
config.addV1System(self.snmpEngine, authData.securityName,
authData.communityName)
config.addTargetParams(self.snmpEngine, paramsName,
authData.securityName,
authData.securityLevel,
authData.mpModel)
elif isinstance(authData, UsmUserData):
config.addV3User(self.snmpEngine, authData.securityName,
authData.authProtocol, authData.authKey,
authData.privProtocol, authData.privKey)
config.addTargetParams(self.snmpEngine, paramsName,
authData.securityName,
authData.securityLevel)
else:
raise error.PySnmpError('Unsupported SNMP version')
self.__knownAuths[authData] = paramsName
if not self.__knownTransports.has_key(transportTarget.transportDomain):
transport = transportTarget.openClientMode()
config.addSocketTransport(self.snmpEngine,
transportTarget.transportDomain,
transport)
self.__knownTransports[transportTarget.transportDomain] = transport
k = transportTarget, tagList
if self.__knownTransportAddrs.has_key(k):
addrName = self.__knownTransportAddrs[k]
else:
addrName = 'a%s' % nextID()
config.addTargetAddr(self.snmpEngine, addrName,
transportTarget.transportDomain,
transportTarget.transportAddr, paramsName,
transportTarget.timeout * 100,
transportTarget.retries, tagList)
self.__knownTransportAddrs[k] = addrName
return addrName, paramsName
def uncfgCmdGen(self):
for authData, paramsName in self.__knownAuths.items():
if isinstance(authData, CommunityData):
config.delV1System(self.snmpEngine, authData.securityName)
config.delTargetParams(self.snmpEngine, paramsName)
elif isinstance(authData, UsmUserData):
config.delV3User(self.snmpEngine, authData.securityName)
config.delTargetParams(self.snmpEngine, paramsName)
else:
raise error.PySnmpError('Unsupported SNMP version')
self.__knownAuths.clear()
for transportDomain, transport in self.__knownTransports.items():
config.delSocketTransport(self.snmpEngine, transportDomain)
transport.closeTransport()
self.__knownTransports.clear()
for addrName in self.__knownTransportAddrs.values():
config.delTargetAddr(self.snmpEngine, addrName)
self.__knownTransportAddrs.clear()
# Async SNMP apps
def asyncGetCmd(self, authData, transportTarget, varNames, (cbFun, cbCtx)):
addrName, paramsName = self.cfgCmdGen(authData, transportTarget)
varBinds = []
for varName in varNames:
name, oid = mibvar.mibNameToOid(self.mibViewController, varName)
varBinds.append((name + oid, self._null))
return cmdgen.GetCommandGenerator().sendReq(self.snmpEngine, addrName,
varBinds, cbFun, cbCtx)
# Async SNMP apps
def asyncGetCmd(self, authData, transportTarget, varNames, (cbFun, cbCtx)):
addrName, paramsName = self.cfgCmdGen(authData, transportTarget)
varBinds = []
for varName in varNames:
name, oid = mibvar.mibNameToOid(self.mibViewController, varName)
varBinds.append((name + oid, self._null))
return cmdgen.GetCommandGenerator().sendReq(self.snmpEngine, addrName,
varBinds, cbFun, cbCtx)
def asyncSetCmd(self, authData, transportTarget, varBinds, (cbFun, cbCtx)):
addrName, paramsName = self.cfgCmdGen(authData, transportTarget)
__varBinds = []
for varName, varVal in varBinds:
name, oid = mibvar.mibNameToOid(self.mibViewController, varName)
if not type(varVal) == types.InstanceType:
((symName, modName),
suffix) = mibvar.oidToMibName(self.mibViewController,
name + oid)
syntax = mibvar.cloneFromMibValue(self.mibViewController,
modName, symName, varVal)
if syntax is None:
raise error.PySnmpError(
'Value type MIB lookup failed for %s' % repr(varName))
varVal = syntax.clone(varVal)
__varBinds.append((name + oid, varVal))
return cmdgen.SetCommandGenerator().sendReq(self.snmpEngine, addrName,
__varBinds, cbFun, cbCtx)
def asyncNextCmd(self, authData, transportTarget, varNames, (cbFun,
)
varBinds.append((name + oid, self._null))
return cmdgen.GetCommandGenerator().sendReq(
self.snmpEngine, addrName, varBinds, cbFun, cbCtx
)
def asyncSetCmd(
self, authData, transportTarget, varBinds, (cbFun, cbCtx)
):
addrName, paramsName = self.cfgCmdGen(
authData, transportTarget
)
__varBinds = []
for varName, varVal in varBinds:
name, oid = mibvar.mibNameToOid(
self.mibViewController, varName
)
if not type(varVal) == types.InstanceType:
((symName, modName), suffix) = mibvar.oidToMibName(
self.mibViewController, name + oid
)
syntax = mibvar.cloneFromMibValue(
self.mibViewController, modName, symName, varVal
)
if syntax is None:
raise error.PySnmpError(
'Value type MIB lookup failed for %s' % repr(varName)
)
varVal = syntax.clone(varVal)
__varBinds.append((name + oid, varVal))
return cmdgen.SetCommandGenerator().sendReq(
def bulkCmd(self, authData, transportTarget,
nonRepeaters, maxRepetitions, *varNames):
def __cbFun(sendRequestHandle, errorIndication,
errorStatus, errorIndex, varBindTable, cbCtx):
(self, varBindHead, varBindTotalTable, appReturn) = cbCtx
if errorStatus or \
errorIndication and not self.ignoreNonIncreasingOid or \
errorIndication and self.ignoreNonIncreasingOid and \
not isinstance(errorIndication, errind.OidNotIncreasing):
appReturn['errorIndication'] = errorIndication
appReturn['errorStatus'] = errorStatus
appReturn['errorIndex'] = errorIndex
appReturn['varBindTable'] = varBindTable
return
else:
while varBindTable:
if len(varBindTable[-1]) != len(varBindHead):
# Fix possibly non-rectangular table
del varBindTable[-1]
else:
break
varBindTotalTable.extend(varBindTable) # XXX out of table
# rows possible
varBindTableRow = varBindTable[-1]
for idx in range(len(varBindTableRow)):
name, val = varBindTableRow[idx]
if not isinstance(val, univ.Null):
if self.lexicographicMode:
if varBindHead[idx] <= name:
break
else:
if varBindHead[idx].isPrefixOf(name):
break
else:
appReturn['errorIndication'] = errorIndication
appReturn['errorStatus'] = errorStatus
appReturn['errorIndex'] = errorIndex
appReturn['varBindTable'] = varBindTotalTable
return
return 1 # continue table retrieval
varBindHead = []
for varName in varNames:
name, suffix = mibvar.mibNameToOid(
self.__asynCmdGen.mibViewController, varName
)
varBindHead.append(univ.ObjectIdentifier(name + suffix))
appReturn = {}
self.__asynCmdGen.bulkCmd(
authData, transportTarget, nonRepeaters, maxRepetitions,
varNames, (__cbFun, (self, varBindHead, [], appReturn))
)
self.__asynCmdGen.snmpEngine.transportDispatcher.runDispatcher()
return (
appReturn['errorIndication'],
appReturn['errorStatus'],
appReturn['errorIndex'],
appReturn['varBindTable']
)
def nextCmd(self, authData, transportTarget, *varNames):
def __cbFun(sendRequestHandle, errorIndication,
errorStatus, errorIndex, varBindTable, cbCtx):
(self, varBindHead, varBindTotalTable, appReturn) = cbCtx
if errorStatus or \
errorIndication and not self.ignoreNonIncreasingOid or \
errorIndication and self.ignoreNonIncreasingOid and \
not isinstance(errorIndication, errind.OidNotIncreasing):
appReturn['errorIndication'] = errorIndication
if errorStatus == 2:
# Hide SNMPv1 noSuchName error which leaks in here
# from SNMPv1 Agent through internal pysnmp proxy.
appReturn['errorStatus'] = errorStatus.clone(0)
appReturn['errorIndex'] = errorIndex.clone(0)
else:
appReturn['errorStatus'] = errorStatus
appReturn['errorIndex'] = errorIndex
appReturn['varBindTable'] = varBindTotalTable
return
else:
varBindTableRow = varBindTable[-1]
for idx in range(len(varBindTableRow)):
name, val = varBindTableRow[idx]
# XXX extra rows
if not isinstance(val, univ.Null):
if self.lexicographicMode:
if varBindHead[idx] <= name:
break
else:
if varBindHead[idx].isPrefixOf(name):
break
else:
appReturn['errorIndication'] = errorIndication
appReturn['errorStatus'] = errorStatus
appReturn['errorIndex'] = errorIndex
appReturn['varBindTable'] = varBindTotalTable
return
varBindTotalTable.extend(varBindTable)
return 1 # continue table retrieval
varBindHead = []
for varName in varNames:
name, suffix = mibvar.mibNameToOid(
self.__asynCmdGen.mibViewController, varName
)
varBindHead.append(univ.ObjectIdentifier(name + suffix))
appReturn = {}
self.__asynCmdGen.nextCmd(
authData, transportTarget, varNames,
(__cbFun, (self, varBindHead,[],appReturn))
)
self.__asynCmdGen.snmpEngine.transportDispatcher.runDispatcher()
return (
appReturn['errorIndication'],
appReturn['errorStatus'],
appReturn['errorIndex'],
appReturn['varBindTable']
)
authData.securityName,
authData.securityLevel,
subTree
)
self.uncfgCmdGen()
def asyncSendNotification(
self, authData, transportTarget, notifyType,
notificationType, varBinds=None, (cbFun, cbCtx)=(None, None)
):
tagList = string.replace(str(transportTarget.transportAddr), ' ', '_')
notifyName = self.cfgNtfOrg(authData, transportTarget,
notifyType, tagList)
if notificationType:
name, oid = mibvar.mibNameToOid(
self.mibViewController, notificationType
)
notificationType = name + oid
if varBinds:
__varBinds = []
for varName, varVal in varBinds:
name, oid = mibvar.mibNameToOid(
self.mibViewController, varName
)
if not type(varVal) == types.InstanceType:
((symName, modName), suffix) = mibvar.oidToMibName(
self.mibViewController, name + oid
)
syntax = mibvar.cloneFromMibValue(
self.mibViewController, modName, symName, varVal
)
