gns3-server/gns3server/modules/dynamips/nios/nio_tap.py

71 lines
1.9 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 TAP NIOs (UNIX based OSes only).
"""
from .nio import NIO
import logging
log = logging.getLogger(__name__)
class NIO_TAP(NIO):
"""
Dynamips TAP NIO.
:param hypervisor: Dynamips hypervisor object
:param tap_device: TAP device name (e.g. tap0)
"""
_instance_count = 0
def __init__(self, hypervisor, tap_device):
NIO.__init__(self, hypervisor)
# create an unique ID
self._id = NIO_TAP._instance_count
NIO_TAP._instance_count += 1
self._name = 'nio_tap' + str(self._id)
self._tap_device = tap_device
self._hypervisor.send("nio create_tap {name} {tap}".format(name=self._name,
tap=tap_device))
log.info("NIO TAP {name} created with device {device}".format(name=self._name,
device=tap_device))
@classmethod
def reset(cls):
"""
Reset the instance count.
"""
cls._instance_count = 0
@property
def tap_device(self):
"""
Returns the TAP device used by this NIO.
:returns: the TAP device name
"""
return self._tap_device