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#
# This file is part of pysnmp software.
#
# Copyright (c) 2005-2019, Ilya Etingof <etingof@gmail.com>
# License: http://snmplabs.com/pysnmp/license.html
#
import sys
from twisted.internet import reactor
from pysnmp.carrier.base import AbstractTransportAddress
from pysnmp.carrier.twisted.dgram.base import DgramTwistedTransport
from pysnmp.carrier import error
domainName = snmpUDPDomain = (1, 3, 6, 1, 6, 1, 1)
class UdpTransportAddress(tuple, AbstractTransportAddress):
pass
class UdpTwistedTransport(DgramTwistedTransport):
addressType = UdpTransportAddress
_lport = None
# AbstractTwistedTransport API
def openClientMode(self, iface=None):
if iface is None:
iface = ('', 0)
try:
self._lport = reactor.listenUDP(iface[1], self, iface[0])
except Exception:
raise error.CarrierError(sys.exc_info()[1])
return self
def openServerMode(self, iface):
try:
self._lport = reactor.listenUDP(iface[1], self, iface[0])
except Exception:
raise error.CarrierError(sys.exc_info()[1])
return self
def closeTransport(self):
if self._lport is not None:
d = self._lport.stopListening()
if d:
d.addCallback(lambda x: None)
DgramTwistedTransport.closeTransport(self)
UdpTransport = UdpTwistedTransport
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