mirror of
https://github.com/GNS3/gns3-server.git
synced 2024-12-30 09:38:53 +00:00
89888ae7bf
Dynamips working directory management Random port selection for the ZeroMQ server TCP & UDP port allocation in a range with improvements Update Dynamips to 0.2.11 (for the tests) Focus on Python3 development (stop trying to be compatible with Python 2.x) More error/bug catching
285 lines
11 KiB
Python
285 lines
11 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 Frame-Relay switch module.
|
|
http://github.com/GNS3/dynamips/blob/master/README.hypervisor#L642
|
|
"""
|
|
|
|
from ..dynamips_error import DynamipsError
|
|
|
|
import logging
|
|
log = logging.getLogger(__name__)
|
|
|
|
|
|
class FrameRelaySwitch(object):
|
|
"""
|
|
Dynamips Frame Relay switch.
|
|
|
|
:param hypervisor: Dynamips hypervisor instance
|
|
:param name: name for this switch
|
|
"""
|
|
|
|
_allocated_names = []
|
|
_instance_count = 1
|
|
|
|
def __init__(self, hypervisor, name=None):
|
|
|
|
# create an unique ID
|
|
self._id = FrameRelaySwitch._instance_count
|
|
FrameRelaySwitch._instance_count += 1
|
|
|
|
# let's create a unique name if none has been chosen
|
|
if not name:
|
|
name_id = self._id
|
|
while True:
|
|
name = "FR" + str(name_id)
|
|
# check if the name has already been allocated to another switch
|
|
if name not in self._allocated_names:
|
|
break
|
|
name_id += 1
|
|
|
|
self._allocated_names.append(name)
|
|
self._hypervisor = hypervisor
|
|
self._name = '"' + name + '"' # put name into quotes to protect spaces
|
|
self._hypervisor.send("frsw create {}".format(self._name))
|
|
|
|
log.info("Frame Relay switch {name} [id={id}] has been created".format(name=self._name,
|
|
id=self._id))
|
|
|
|
self._hypervisor.devices.append(self)
|
|
self._nios = {}
|
|
self._mapping = {}
|
|
|
|
@classmethod
|
|
def reset(cls):
|
|
"""
|
|
Resets the instance count and the allocated names list.
|
|
"""
|
|
|
|
cls._instance_count = 1
|
|
cls._allocated_names.clear()
|
|
|
|
@property
|
|
def id(self):
|
|
"""
|
|
Returns the unique ID for this Frame Relay switch.
|
|
|
|
:returns: id (integer)
|
|
"""
|
|
|
|
return self._id
|
|
|
|
@property
|
|
def name(self):
|
|
"""
|
|
Returns the current name of this Frame Relay switch.
|
|
|
|
:returns: Frame Relay switch name
|
|
"""
|
|
|
|
return self._name[1:-1] # remove quotes
|
|
|
|
@name.setter
|
|
def name(self, new_name):
|
|
"""
|
|
Renames this Frame Relay switch.
|
|
|
|
:param new_name: New name for this switch
|
|
"""
|
|
|
|
new_name_no_quotes = new_name
|
|
new_name = '"' + new_name + '"' # put the new name into quotes to protect spaces
|
|
self._hypervisor.send("frsw rename {name} {new_name}".format(name=self._name,
|
|
new_name=new_name))
|
|
|
|
log.info("Frame Relay switch {name} [id={id}]: renamed to {new_name}".format(name=self._name,
|
|
id=self._id,
|
|
new_name=new_name))
|
|
|
|
self._allocated_names.remove(self.name)
|
|
self._name = new_name
|
|
self._allocated_names.append(new_name_no_quotes)
|
|
|
|
@property
|
|
def hypervisor(self):
|
|
"""
|
|
Returns the current hypervisor.
|
|
|
|
:returns: hypervisor instance
|
|
"""
|
|
|
|
return self._hypervisor
|
|
|
|
def list(self):
|
|
"""
|
|
Returns all Frame Relay switches instances.
|
|
|
|
:returns: list of all Frame Relay switches
|
|
"""
|
|
|
|
return self._hypervisor.send("frsw list")
|
|
|
|
@property
|
|
def nios(self):
|
|
"""
|
|
Returns all the NIOs member of this Frame Relay switch.
|
|
|
|
:returns: nio list
|
|
"""
|
|
|
|
return self._nios
|
|
|
|
@property
|
|
def mapping(self):
|
|
"""
|
|
Returns port mapping
|
|
|
|
:returns: mapping list
|
|
"""
|
|
|
|
return self._mapping
|
|
|
|
def delete(self):
|
|
"""
|
|
Deletes this Frame Relay switch.
|
|
"""
|
|
|
|
self._hypervisor.send("frsw delete {}".format(self._name))
|
|
|
|
log.info("Frame Relay switch {name} [id={id}] has been deleted".format(name=self._name,
|
|
id=self._id))
|
|
self._hypervisor.devices.remove(self)
|
|
self._allocated_names.remove(self.name)
|
|
|
|
def has_port(self, port):
|
|
"""
|
|
Checks if a port exists on this Frame Relay switch.
|
|
|
|
:returns: boolean
|
|
"""
|
|
|
|
if port in self._nios:
|
|
return True
|
|
return False
|
|
|
|
def add_nio(self, nio, port):
|
|
"""
|
|
Adds a NIO as new port on Frame Relay switch.
|
|
|
|
: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))
|
|
|
|
log.info("Frame Relay switch {name} [id={id}]: NIO {nio} bound to port {port}".format(name=self._name,
|
|
id=self._id,
|
|
nio=nio,
|
|
port=port))
|
|
|
|
self._nios[port] = nio
|
|
|
|
def remove_nio(self, port):
|
|
"""
|
|
Removes the specified NIO as member of this Frame Relay switch.
|
|
|
|
:param port: allocated port
|
|
|
|
:returns: the NIO that was bound to the allocated port
|
|
"""
|
|
|
|
if port not in self._nios:
|
|
raise DynamipsError("Port {} is not allocated".format(port))
|
|
|
|
nio = self._nios[port]
|
|
log.info("Frame Relay switch {name} [id={id}]: NIO {nio} removed from port {port}".format(name=self._name,
|
|
id=self._id,
|
|
nio=nio,
|
|
port=port))
|
|
|
|
del self._nios[port]
|
|
return nio
|
|
|
|
def map_vc(self, port1, dlci1, port2, dlci2):
|
|
"""
|
|
Creates a new Virtual Circuit connection (unidirectional).
|
|
|
|
:param port1: input port
|
|
:param dlci1: input DLCI
|
|
:param port2: output port
|
|
:param dlci2: output DLCI
|
|
"""
|
|
|
|
if port1 not in self._nios:
|
|
raise DynamipsError("Port {} is not allocated".format(port1))
|
|
|
|
if port2 not in self._nios:
|
|
raise DynamipsError("Port {} is not allocated".format(port2))
|
|
|
|
nio1 = self._nios[port1]
|
|
nio2 = self._nios[port2]
|
|
|
|
self._hypervisor.send("frsw create_vc {name} {input_nio} {input_dlci} {output_nio} {output_dlci}".format(name=self._name,
|
|
input_nio=nio1,
|
|
input_dlci=dlci1,
|
|
output_nio=nio2,
|
|
output_dlci=dlci2))
|
|
|
|
log.info("Frame Relay switch {name} [id={id}]: VC from port {port1} DLCI {dlci1} to port {port2} DLCI {dlci2} created".format(name=self._name,
|
|
id=self._id,
|
|
port1=port1,
|
|
dlci1=dlci1,
|
|
port2=port2,
|
|
dlci2=dlci2))
|
|
|
|
self._mapping[(port1, dlci1)] = (port2, dlci2)
|
|
|
|
def unmap_vc(self, port1, dlci1, port2, dlci2):
|
|
"""
|
|
Deletes a Virtual Circuit connection (unidirectional).
|
|
|
|
:param port1: input port
|
|
:param dlci1: input DLCI
|
|
:param port2: output port
|
|
:param dlci2: output DLCI
|
|
"""
|
|
|
|
if port1 not in self._nios:
|
|
raise DynamipsError("Port {} is not allocated".format(port1))
|
|
|
|
if port2 not in self._nios:
|
|
raise DynamipsError("Port {} is not allocated".format(port2))
|
|
|
|
nio1 = self._nios[port1]
|
|
nio2 = self._nios[port2]
|
|
|
|
self._hypervisor.send("frsw delete_vc {name} {input_nio} {input_dlci} {output_nio} {output_dlci}".format(name=self._name,
|
|
input_nio=nio1,
|
|
input_dlci=dlci1,
|
|
output_nio=nio2,
|
|
output_dlci=dlci2))
|
|
|
|
log.info("Frame Relay switch {name} [id={id}]: VC from port {port1} DLCI {dlci1} to port {port2} DLCI {dlci2} deleted".format(name=self._name,
|
|
id=self._id,
|
|
port1=port1,
|
|
dlci1=dlci1,
|
|
port2=port2,
|
|
dlci2=dlci2))
|
|
del self._mapping[(port1, dlci1)]
|