gns3-server/gns3server/compute/dynamips/nodes/bridge.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 Dynamips NIO bridge module ("nio_bridge").
http://github.com/GNS3/dynamips/blob/master/README.hypervisor#L538
"""
import asyncio
from .device import Device
class Bridge(Device):
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"""
Dynamips bridge.
:param name: name for this bridge
:param node_id: Node instance identifier
:param project: Project instance
:param manager: Parent VM Manager
:param hypervisor: Dynamips hypervisor instance
"""
def __init__(self, name, node_id, project, manager, hypervisor=None):
super().__init__(name, node_id, project, manager, hypervisor)
self._nios = []
@asyncio.coroutine
def create(self):
if self._hypervisor is None:
module_workdir = self.project.module_working_directory(self.manager.module_name.lower())
self._hypervisor = yield from self.manager.start_new_hypervisor(working_dir=module_workdir)
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yield from self._hypervisor.send('nio_bridge create "{}"'.format(self._name))
self._hypervisor.devices.append(self)
@asyncio.coroutine
def set_name(self, new_name):
"""
Renames this bridge.
:param new_name: New name for this bridge
"""
yield from self._hypervisor.send('nio_bridge rename "{name}" "{new_name}"'.format(name=self._name,
new_name=new_name))
self._name = new_name
@property
def nios(self):
"""
Returns all the NIOs member of this bridge.
:returns: nio list
"""
return self._nios
@asyncio.coroutine
def delete(self):
"""
Deletes this bridge.
"""
if self._hypervisor and self in self._hypervisor.devices:
self._hypervisor.devices.remove(self)
if self._hypervisor and not self._hypervisor.devices:
yield from self._hypervisor.send('nio_bridge delete "{}"'.format(self._name))
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@asyncio.coroutine
def add_nio(self, nio):
"""
Adds a NIO as new port on this bridge.
:param nio: NIO instance to add
"""
yield from self._hypervisor.send('nio_bridge add_nio "{name}" {nio}'.format(name=self._name, nio=nio))
self._nios.append(nio)
@asyncio.coroutine
def remove_nio(self, nio):
"""
Removes the specified NIO as member of this bridge.
:param nio: NIO instance to remove
"""
yield from self._hypervisor.send('nio_bridge remove_nio "{name}" {nio}'.format(name=self._name, nio=nio))
self._nios.remove(nio)
def hw_virtualization(self):
return False