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from pysnmp.entity import config
from pysnmp import error
from pyasn1.compat.octets import null
class CommunityData:
mpModel = 1 # Default is SMIv2
securityModel = mpModel + 1
securityLevel = 'noAuthNoPriv'
contextName = null
tag = null
def __init__(self, communityIndex, communityName=None, mpModel=None,
contextEngineId=None, contextName=None, tag=None,
securityName=None):
if mpModel is not None:
self.mpModel = mpModel
self.securityModel = mpModel + 1
self.contextEngineId = contextEngineId
if contextName is not None:
self.contextName = contextName
if tag is not None:
self.tag = tag
# a single arg is considered as a community name
if communityName is None:
communityName, communityIndex = communityIndex, None
self.communityName = communityName
# Autogenerate communityIndex if not specified
if communityIndex is None:
self.communityIndex = self.securityName = 's%s' % hash(
( self.communityName,
self.mpModel,
self.contextEngineId,
self.contextName,
self.tag )
)
else:
self.communityIndex = communityIndex
self.securityName = securityName is not None and securityName or communityIndex
def __hash__(self):
raise TypeError('%s is not hashable' % self.__class__.__name__)
def __repr__(self):
return '%s(communityIndex=%r, communityName=<COMMUNITY>, mpModel=%r, contextEngineId=%r, contextName=%r, tag=%r, securityName=%r)' % (
self.__class__.__name__,
self.communityIndex,
self.mpModel,
self.contextEngineId,
self.contextName,
self.tag,
self.securityName
)
def clone(self, communityIndex=None, communityName=None,
mpModel=None, contextEngineId=None,
contextName=None, tag=None, securityName=None):
# a single arg is considered as a community name
if communityName is None:
communityName, communityIndex = communityIndex, None
return self.__class__(
communityIndex,
communityName is None and self.communityName or communityName,
mpModel is None and self.mpModel or mpModel,
contextEngineId is None and self.contextEngineId or contextEngineId,
contextName is None and self.contextName or contextName,
tag is None and self.tag or tag,
securityName is None and self.securityName or securityName
)
class UsmUserData:
authKey = privKey = None
authProtocol = config.usmNoAuthProtocol
privProtocol = config.usmNoPrivProtocol
securityLevel = 'noAuthNoPriv'
securityModel = 3
mpModel = 3
contextName = null
# the contextEngineId/contextName values stored here should
# be used for USM configuration only, not for PDU contents
def __init__(self, userName,
authKey=None, privKey=None,
authProtocol=None, privProtocol=None,
securityEngineId=None,
# deprecated parameters begin
contextName=None,
contextEngineId=None,
# deprecated parameters end
securityName=None):
self.userName = userName
if securityName is None:
self.securityName = userName
else:
self.securityName = securityName
if authKey is not None:
self.authKey = authKey
if authProtocol is None:
self.authProtocol = config.usmHMACMD5AuthProtocol
else:
self.authProtocol = authProtocol
if self.securityLevel != 'authPriv':
self.securityLevel = 'authNoPriv'
if privKey is not None:
self.privKey = privKey
if self.authProtocol == config.usmNoAuthProtocol:
raise error.PySnmpError('Privacy implies authenticity')
self.securityLevel = 'authPriv'
if privProtocol is None:
self.privProtocol = config.usmDESPrivProtocol
else:
self.privProtocol = privProtocol
# the contextEngineId parameter is actually a securityEngineId
if securityEngineId is None:
securityEngineId = contextEngineId
self.contextEngineId = self.securityEngineId = securityEngineId
# the contextName parameter should never be used here
if contextName is not None:
self.contextName = contextName
def __hash__(self):
raise TypeError('%s is not hashable' % self.__class__.__name__)
def __repr__(self):
return '%s(userName=%r, authKey=<AUTHKEY>, privKey=<PRIVKEY>, authProtocol=%r, privProtocol=%r, securityEngineId=%r, securityName=%r)'%(
self.__class__.__name__,
self.userName,
self.authProtocol,
self.privProtocol,
self.securityEngineId is None and '<DEFAULT>' or self.securityEngineId,
self.securityName
)
def clone(self, userName=None,
authKey=None, privKey=None,
authProtocol=None, privProtocol=None,
securityEngineId=None, securityName=None):
return self.__class__(
userName is None and self.userName or userName,
authKey is None and self.authKey or authKey,
privKey is None and self.privKey or privKey,
authProtocol is None and self.authProtocol or authProtocol,
privProtocol is None and self.privProtocol or privProtocol,
securityEngineId is None and self.securityEngineId or securityEngineId,
securityName=securityName is None and self.securityName or securityName
)
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