mirror of
https://github.com/GNS3/gns3-server
synced 2024-11-13 20:08:55 +00:00
143 lines
5.2 KiB
Python
143 lines
5.2 KiB
Python
# -*- 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.
|
|
"""
|
|
|
|
import asyncio
|
|
import uuid
|
|
|
|
from gns3server.compute.nios import nio_udp
|
|
from .nio import NIO
|
|
|
|
|
|
import logging
|
|
log = logging.getLogger(__name__)
|
|
|
|
|
|
class NIOUDP(NIO):
|
|
|
|
"""
|
|
Dynamips UDP NIO.
|
|
|
|
:param hypervisor: Dynamips hypervisor instance
|
|
:param lport: local port number
|
|
:param rhost: remote address/host
|
|
:param rport: remote port number
|
|
"""
|
|
|
|
def __init__(self, node, lport, rhost, rport):
|
|
|
|
# create an unique name
|
|
name = 'udp-{}'.format(uuid.uuid4())
|
|
self._lport = lport
|
|
self._rhost = rhost
|
|
self._rport = rport
|
|
self._local_tunnel_lport = None
|
|
self._local_tunnel_rport = None
|
|
self._node = node
|
|
super().__init__(name, node.hypervisor)
|
|
|
|
async def create(self):
|
|
if not self._hypervisor:
|
|
return
|
|
# Ubridge is not supported
|
|
if not hasattr(self._node, "add_ubridge_udp_connection"):
|
|
await self._hypervisor.send("nio create_udp {name} {lport} {rhost} {rport}".format(name=self._name,
|
|
lport=self._lport,
|
|
rhost=self._rhost,
|
|
rport=self._rport))
|
|
return
|
|
self._local_tunnel_lport = self._node.manager.port_manager.get_free_udp_port(self._node.project)
|
|
self._local_tunnel_rport = self._node.manager.port_manager.get_free_udp_port(self._node.project)
|
|
self._bridge_name = 'DYNAMIPS-{}-{}'.format(self._local_tunnel_lport, self._local_tunnel_rport)
|
|
await self._hypervisor.send("nio create_udp {name} {lport} {rhost} {rport}".format(name=self._name,
|
|
lport=self._local_tunnel_lport,
|
|
rhost='127.0.0.1',
|
|
rport=self._local_tunnel_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))
|
|
|
|
self._source_nio = nio_udp.NIOUDP(self._local_tunnel_rport,
|
|
'127.0.0.1',
|
|
self._local_tunnel_lport)
|
|
self._destination_nio = nio_udp.NIOUDP(self._lport,
|
|
self._rhost,
|
|
self._rport)
|
|
self._destination_nio.filters = self._filters
|
|
await self._node.add_ubridge_udp_connection(
|
|
self._bridge_name,
|
|
self._source_nio,
|
|
self._destination_nio
|
|
)
|
|
|
|
async def update(self):
|
|
self._destination_nio.filters = self._filters
|
|
await self._node.update_ubridge_udp_connection(
|
|
self._bridge_name,
|
|
self._source_nio,
|
|
self._destination_nio)
|
|
|
|
async def close(self):
|
|
if self._local_tunnel_lport:
|
|
await self._node.ubridge_delete_bridge(self._bridge_name)
|
|
self._node.manager.port_manager.release_udp_port(self._local_tunnel_lport, self ._node.project)
|
|
if self._local_tunnel_rport:
|
|
self._node.manager.port_manager.release_udp_port(self._local_tunnel_rport, self._node.project)
|
|
self._node.manager.port_manager.release_udp_port(self._lport, self._node.project)
|
|
|
|
@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
|
|
|
|
def __json__(self):
|
|
|
|
return {"type": "nio_udp",
|
|
"lport": self._lport,
|
|
"rport": self._rport,
|
|
"rhost": self._rhost}
|