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gns3-server/gns3server/compute/dynamips/nios/nio_udp.py

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# -*- coding: utf-8 -*-
#
# Copyright (C) 2013 GNS3 Technologies Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
Interface for UDP NIOs.
"""
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import asyncio
import uuid
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from .nio import NIO
import logging
log = logging.getLogger(__name__)
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class NIOUDP(NIO):
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"""
Dynamips UDP NIO.
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:param hypervisor: Dynamips hypervisor instance
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:param lport: local port number
:param rhost: remote address/host
:param rport: remote port number
"""
def __init__(self, hypervisor, lport, rhost, rport):
# create an unique name
name = 'udp-{}'.format(uuid.uuid4())
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self._lport = lport
self._rhost = rhost
self._rport = rport
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super().__init__(name, hypervisor)
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@asyncio.coroutine
def create(self):
if not self._hypervisor:
return
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yield from self._hypervisor.send("nio create_udp {name} {lport} {rhost} {rport}".format(name=self._name,
lport=self._lport,
rhost=self._rhost,
rport=self._rport))
log.info("NIO UDP {name} created with lport={lport}, rhost={rhost}, rport={rport}".format(name=self._name,
lport=self._lport,
rhost=self._rhost,
rport=self._rport))
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@property
def lport(self):
"""
Returns the local port
:returns: local port number
"""
return self._lport
@property
def rhost(self):
"""
Returns the remote host
:returns: remote address/host
"""
return self._rhost
@property
def rport(self):
"""
Returns the remote port
:returns: remote port number
"""
return self._rport
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def __json__(self):
return {"type": "nio_udp",
"lport": self._lport,
"rport": self._rport,
"rhost": self._rhost}