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gns3-server/gns3server/old_modules/dynamips/nodes/atm_bridge.py
2015-01-20 16:37:18 +01:00

173 lines
4.9 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 Dynamips virtual ATM bridge module ("atm_bridge").
http://github.com/GNS3/dynamips/blob/master/README.hypervisor#L622
"""
from ..dynamips_error import DynamipsError
class ATMBridge(object):
"""
Dynamips bridge switch.
:param hypervisor: Dynamips hypervisor instance
:param name: name for this switch
"""
def __init__(self, hypervisor, name):
# FIXME: instance tracking
self._hypervisor = hypervisor
self._name = '"' + name + '"' # put name into quotes to protect spaces
self._hypervisor.send("atm_bridge create {}".format(self._name))
self._hypervisor.devices.append(self)
self._nios = {}
self._mapping = {}
@property
def name(self):
"""
Returns the current name of this ATM bridge.
:returns: ATM bridge name
"""
return self._name[1:-1] # remove quotes
@name.setter
def name(self, new_name):
"""
Renames this ATM bridge.
:param new_name: New name for this bridge
"""
new_name = '"' + new_name + '"' # put the new name into quotes to protect spaces
self._hypervisor.send("atm_bridge rename {name} {new_name}".format(name=self._name,
new_name=new_name))
self._name = new_name
@property
def hypervisor(self):
"""
Returns the current hypervisor.
:returns: hypervisor instance
"""
return self._hypervisor
def list(self):
"""
Returns all ATM bridge instances.
:returns: list of all ATM bridges
"""
return self._hypervisor.send("atm_bridge list")
@property
def nios(self):
"""
Returns all the NIOs member of this ATM bridge.
:returns: nio list
"""
return self._nios
@property
def mapping(self):
"""
Returns port mapping
:returns: mapping list
"""
return self._mapping
def delete(self):
"""
Deletes this ATM bridge.
"""
self._hypervisor.send("atm_bridge delete {}".format(self._name))
self._hypervisor.devices.remove(self)
def add_nio(self, nio, port):
"""
Adds a NIO as new port on ATM bridge.
:param nio: NIO instance to add
:param port: port to allocate for the NIO
"""
if port in self._nios:
raise DynamipsError("Port {} isn't free".format(port))
self._nios[port] = nio
def remove_nio(self, port):
"""
Removes the specified NIO as member of this ATM switch.
:param port: allocated port
"""
if port not in self._nios:
raise DynamipsError("Port {} is not allocated".format(port))
del self._nios[port]
def configure(self, eth_port, atm_port, atm_vpi, atm_vci):
"""
Configures this ATM bridge.
:param eth_port: Ethernet port
:param atm_port: ATM port
:param atm_vpi: ATM VPI
:param atm_vci: ATM VCI
"""
if eth_port not in self._nios:
raise DynamipsError("Ethernet port {} is not allocated".format(eth_port))
if atm_port not in self._nios:
raise DynamipsError("ATM port {} is not allocated".format(atm_port))
eth_nio = self._nios[eth_port]
atm_nio = self._nios[atm_port]
self._hypervisor.send("atm_bridge configure {name} {eth_nio} {atm_nio} {vpi} {vci}".format(name=self._name,
eth_nio=eth_nio,
atm_nio=atm_nio,
vpi=atm_vpi,
vci=atm_vci))
self._mapping[eth_port] = (atm_port, atm_vpi, atm_vci)
def unconfigure(self):
"""
Unconfigures this ATM bridge.
"""
self._hypervisor.send("atm_bridge unconfigure {}".format(self._name))
del self._mapping