/usr/lib/python3/dist-packages/pysnmp/proto/api/v1.py is in python3-pysnmp4 4.2.5-1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 | from pyasn1.type import univ
from pysnmp.proto import rfc1155, rfc1157, error
from pysnmp import nextid
# Shortcuts to SNMP types
Integer = univ.Integer
OctetString = univ.OctetString
Null = univ.Null
null = Null('')
ObjectIdentifier = univ.ObjectIdentifier
IpAddress = rfc1155.IpAddress
NetworkAddress = rfc1155.NetworkAddress
Counter = rfc1155.Counter
Gauge = rfc1155.Gauge
TimeTicks = rfc1155.TimeTicks
Opaque = rfc1155.Opaque
VarBind = rfc1157.VarBind
VarBindList = rfc1157.VarBindList
GetRequestPDU = rfc1157.GetRequestPDU
GetNextRequestPDU = rfc1157.GetNextRequestPDU
GetResponsePDU = rfc1157.GetResponsePDU
SetRequestPDU = rfc1157.SetRequestPDU
TrapPDU = rfc1157.TrapPDU
Message = rfc1157.Message
class VarBindAPI:
def setOIDVal(self, varBind, oidVal):
(oid, val) = oidVal
varBind.setComponentByPosition(0, oid)
if val is None: val = null
varBind.setComponentByPosition(1).getComponentByPosition(1).setComponentByType(val.getTagSet(), val, 1, verifyConstraints=False)
return varBind
def getOIDVal(self, varBind):
return varBind[0], varBind[1].getComponent(1)
apiVarBind = VarBindAPI()
getNextRequestID = nextid.Integer(0xffffff)
class PDUAPI:
_errorStatus = rfc1157._errorStatus.clone(0)
_errorIndex = Integer(0)
def setDefaults(self, pdu):
pdu.setComponentByPosition(
0, getNextRequestID(), verifyConstraints=False
)
pdu.setComponentByPosition(
1, self._errorStatus, verifyConstraints=False
)
pdu.setComponentByPosition(
2, self._errorIndex, verifyConstraints=False
)
pdu.setComponentByPosition(3)
def getRequestID(self, pdu): return pdu.getComponentByPosition(0)
def setRequestID(self, pdu, value): pdu.setComponentByPosition(0, value)
def getErrorStatus(self, pdu): return pdu.getComponentByPosition(1)
def setErrorStatus(self, pdu, value): pdu.setComponentByPosition(1, value)
def getErrorIndex(self, pdu, muteErrors=False):
errorIndex = pdu.getComponentByPosition(2)
if errorIndex > len(pdu[3]):
if muteErrors:
return errorIndex.clone(len(pdu[3]))
raise error.ProtocolError(
'Error index out of range: %s > %s' % (errorIndex, len(pdu[3]))
)
return errorIndex
def setErrorIndex(self, pdu, value):
pdu.setComponentByPosition(2, value)
def setEndOfMibError(self, pdu, errorIndex):
self.setErrorIndex(pdu, errorIndex)
self.setErrorStatus(pdu, 2)
def setNoSuchInstanceError(self, pdu, errorIndex):
self.setEndOfMibError(pdu, errorIndex)
def getVarBindList(self, pdu):
return pdu.getComponentByPosition(3)
def setVarBindList(self, pdu, varBindList):
varBindList = pdu.setComponentByPosition(3, varBindList)
def getVarBinds(self, pdu):
varBinds = []
for varBind in pdu.getComponentByPosition(3):
varBinds.append(apiVarBind.getOIDVal(varBind))
return varBinds
def setVarBinds(self, pdu, varBinds):
varBindList = pdu.setComponentByPosition(3).getComponentByPosition(3)
varBindList.clear()
idx = 0
for varBind in varBinds:
if isinstance(varBind, VarBind):
varBindList.setComponentByPosition(idx, varBind)
else:
varBindList.setComponentByPosition(idx)
apiVarBind.setOIDVal(
varBindList.getComponentByPosition(idx), varBind
)
idx = idx + 1
def getResponse(self, reqPDU):
rspPDU = GetResponsePDU()
self.setDefaults(rspPDU)
self.setRequestID(rspPDU, self.getRequestID(reqPDU))
return rspPDU
def getVarBindTable(self, reqPDU, rspPDU):
if apiPDU.getErrorStatus(rspPDU) == 2:
varBindRow = []
for varBind in apiPDU.getVarBinds(reqPDU):
varBindRow.append((varBind[0], null))
return [ varBindRow ]
else:
return [ apiPDU.getVarBinds(rspPDU) ]
apiPDU = PDUAPI()
class TrapPDUAPI:
try:
import socket
agentAddress = IpAddress(socket.gethostbyname(socket.gethostname()))
except:
agentAddress = IpAddress('0.0.0.0')
_networkAddress = NetworkAddress().setComponentByPosition(0, agentAddress)
_entOid = ObjectIdentifier((1,3,6,1,4,1,20408))
_genericTrap = rfc1157._genericTrap.clone('coldStart')
_zeroInt = univ.Integer(0)
_zeroTime = TimeTicks(0)
def setDefaults(self, pdu):
pdu.setComponentByPosition(0, self._entOid, verifyConstraints=False)
pdu.setComponentByPosition(1, self._networkAddress, verifyConstraints=False)
pdu.setComponentByPosition(2, self._genericTrap,verifyConstraints=False)
pdu.setComponentByPosition(3, self._zeroInt, verifyConstraints=False)
pdu.setComponentByPosition(4, self._zeroTime, verifyConstraints=False)
pdu.setComponentByPosition(5)
def getEnterprise(self, pdu): return pdu.getComponentByPosition(0)
def setEnterprise(self, pdu, value): pdu.setComponentByPosition(0, value)
def getAgentAddr(self, pdu):
return pdu.getComponentByPosition(1).getComponentByPosition(0)
def setAgentAddr(self, pdu, value):
pdu.setComponentByPosition(1).getComponentByPosition(1).setComponentByPosition(0, value)
def getGenericTrap(self, pdu): return pdu.getComponentByPosition(2)
def setGenericTrap(self, pdu, value): pdu.setComponentByPosition(2, value)
def getSpecificTrap(self, pdu): return pdu.getComponentByPosition(3)
def setSpecificTrap(self, pdu, value): pdu.setComponentByPosition(3, value)
def getTimeStamp(self, pdu): return pdu.getComponentByPosition(4)
def setTimeStamp(self, pdu, value): pdu.setComponentByPosition(4, value)
def getVarBindList(self, pdu):
return pdu.getComponentByPosition(5)
def setVarBindList(self, pdu, varBindList):
varBindList = pdu.setComponentByPosition(5, varBindList)
def getVarBinds(self, pdu):
varBinds = []
for varBind in pdu.getComponentByPosition(5):
varBinds.append(apiVarBind.getOIDVal(varBind))
return varBinds
def setVarBinds(self, pdu, varBinds):
varBindList = pdu.setComponentByPosition(5).getComponentByPosition(5)
varBindList.clear()
idx = 0
for varBind in varBinds:
if isinstance(varBind, VarBind):
varBindList.setComponentByPosition(idx, varBind)
else:
varBindList.setComponentByPosition(idx)
apiVarBind.setOIDVal(
varBindList.getComponentByPosition(idx), varBind
)
idx = idx + 1
apiTrapPDU = TrapPDUAPI()
class MessageAPI:
_version = rfc1157._version.clone(0)
_community = univ.OctetString('public')
def setDefaults(self, msg):
msg.setComponentByPosition(0, self._version, verifyConstraints=False)
msg.setComponentByPosition(1, self._community, verifyConstraints=False)
return msg
def getVersion(self, msg): return msg.getComponentByPosition(0)
def setVersion(self, msg, value): msg.setComponentByPosition(0, value)
def getCommunity(self, msg): return msg.getComponentByPosition(1)
def setCommunity(self, msg, value): msg.setComponentByPosition(1, value)
def getPDU(self, msg): return msg.getComponentByPosition(2).getComponent()
def setPDU(self, msg, value):
msg.setComponentByPosition(2).getComponentByPosition(2).setComponentByType(value.getTagSet(), value, 1, verifyConstraints=False)
def getResponse(self, reqMsg):
rspMsg = Message()
self.setDefaults(rspMsg)
self.setVersion(rspMsg, self.getVersion(reqMsg))
self.setCommunity(rspMsg, self.getCommunity(reqMsg))
self.setPDU(rspMsg, apiPDU.getResponse(self.getPDU(reqMsg)))
return rspMsg
apiMessage = MessageAPI()
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