mirror of
https://github.com/GNS3/gns3-server
synced 2024-11-18 22:38:07 +00:00
257 lines
8.2 KiB
Python
257 lines
8.2 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/>.
|
|
|
|
"""
|
|
Base interface for Dynamips Network Input/Output (NIO) module ("nio").
|
|
http://github.com/GNS3/dynamips/blob/master/README.hypervisor#L451
|
|
"""
|
|
|
|
import asyncio
|
|
from ..dynamips_error import DynamipsError
|
|
|
|
import logging
|
|
log = logging.getLogger(__name__)
|
|
|
|
|
|
class NIO:
|
|
|
|
"""
|
|
Base NIO class
|
|
|
|
:param hypervisor: Dynamips hypervisor instance
|
|
"""
|
|
|
|
def __init__(self, name, hypervisor):
|
|
|
|
self._hypervisor = hypervisor
|
|
self._name = name
|
|
self._bandwidth = None # no bandwidth constraint by default
|
|
self._input_filter = None # no input filter applied by default
|
|
self._output_filter = None # no output filter applied by default
|
|
self._input_filter_options = None # no input filter options by default
|
|
self._output_filter_options = None # no output filter options by default
|
|
self._dynamips_direction = {"in": 0, "out": 1, "both": 2}
|
|
|
|
@asyncio.coroutine
|
|
def list(self):
|
|
"""
|
|
Returns all NIOs.
|
|
|
|
:returns: NIO list
|
|
"""
|
|
|
|
nio_list = yield from self._hypervisor.send("nio list")
|
|
return nio_list
|
|
|
|
@asyncio.coroutine
|
|
def delete(self):
|
|
"""
|
|
Deletes this NIO.
|
|
"""
|
|
|
|
if self._input_filter or self._output_filter:
|
|
yield from self.unbind_filter("both")
|
|
yield from self._hypervisor.send("nio delete {}".format(self._name))
|
|
log.info("NIO {name} has been deleted".format(name=self._name))
|
|
|
|
@asyncio.coroutine
|
|
def rename(self, new_name):
|
|
"""
|
|
Renames this NIO
|
|
|
|
:param new_name: new NIO name
|
|
"""
|
|
|
|
yield from self._hypervisor.send("nio rename {name} {new_name}".format(name=self._name, new_name=new_name))
|
|
|
|
log.info("NIO {name} renamed to {new_name}".format(name=self._name, new_name=new_name))
|
|
self._name = new_name
|
|
|
|
@asyncio.coroutine
|
|
def debug(self, debug):
|
|
"""
|
|
Enables/Disables debugging for this NIO.
|
|
|
|
:param debug: debug value (0 = disable, enable = 1)
|
|
"""
|
|
|
|
yield from self._hypervisor.send("nio set_debug {name} {debug}".format(name=self._name, debug=debug))
|
|
|
|
@asyncio.coroutine
|
|
def bind_filter(self, direction, filter_name):
|
|
"""
|
|
Adds a packet filter to this NIO.
|
|
Filter "freq_drop" drops packets.
|
|
Filter "capture" captures packets.
|
|
|
|
:param direction: "in", "out" or "both"
|
|
:param filter_name: name of the filter to apply
|
|
"""
|
|
|
|
if direction not in self._dynamips_direction:
|
|
raise DynamipsError("Unknown direction {} to bind filter {}:".format(direction, filter_name))
|
|
dynamips_direction = self._dynamips_direction[direction]
|
|
|
|
yield from self._hypervisor.send("nio bind_filter {name} {direction} {filter}".format(name=self._name,
|
|
direction=dynamips_direction,
|
|
filter=filter_name))
|
|
|
|
if direction == "in":
|
|
self._input_filter = filter_name
|
|
elif direction == "out":
|
|
self._output_filter = filter_name
|
|
elif direction == "both":
|
|
self._input_filter = filter_name
|
|
self._output_filter = filter_name
|
|
|
|
@asyncio.coroutine
|
|
def unbind_filter(self, direction):
|
|
"""
|
|
Removes packet filter for this NIO.
|
|
|
|
:param direction: "in", "out" or "both"
|
|
"""
|
|
|
|
if direction not in self._dynamips_direction:
|
|
raise DynamipsError("Unknown direction {} to unbind filter:".format(direction))
|
|
dynamips_direction = self._dynamips_direction[direction]
|
|
|
|
yield from self._hypervisor.send("nio unbind_filter {name} {direction}".format(name=self._name,
|
|
direction=dynamips_direction))
|
|
|
|
if direction == "in":
|
|
self._input_filter = None
|
|
elif direction == "out":
|
|
self._output_filter = None
|
|
elif direction == "both":
|
|
self._input_filter = None
|
|
self._output_filter = None
|
|
|
|
@asyncio.coroutine
|
|
def setup_filter(self, direction, options):
|
|
"""
|
|
Setups a packet filter bound with this NIO.
|
|
|
|
Filter "freq_drop" has 1 argument "<frequency>". It will drop
|
|
everything with a -1 frequency, drop every Nth packet with a
|
|
positive frequency, or drop nothing.
|
|
|
|
Filter "capture" has 2 arguments "<link_type_name> <output_file>".
|
|
It will capture packets to the target output file. The link type
|
|
name is a case-insensitive DLT_ name from the PCAP library
|
|
constants with the DLT_ part removed.See http://www.tcpdump.org/linktypes.html
|
|
for a list of all available DLT values.
|
|
|
|
:param direction: "in", "out" or "both"
|
|
:param options: options for the packet filter (string)
|
|
"""
|
|
|
|
if direction not in self._dynamips_direction:
|
|
raise DynamipsError("Unknown direction {} to setup filter:".format(direction))
|
|
dynamips_direction = self._dynamips_direction[direction]
|
|
|
|
yield from self._hypervisor.send("nio setup_filter {name} {direction} {options}".format(name=self._name,
|
|
direction=dynamips_direction,
|
|
options=options))
|
|
|
|
if direction == "in":
|
|
self._input_filter_options = options
|
|
elif direction == "out":
|
|
self._output_filter_options = options
|
|
elif direction == "both":
|
|
self._input_filter_options = options
|
|
self._output_filter_options = options
|
|
|
|
@property
|
|
def input_filter(self):
|
|
"""
|
|
Returns the input packet filter for this NIO.
|
|
|
|
:returns: tuple (filter name, filter options)
|
|
"""
|
|
|
|
return self._input_filter, self._input_filter_options
|
|
|
|
@property
|
|
def output_filter(self):
|
|
"""
|
|
Returns the output packet filter for this NIO.
|
|
|
|
:returns: tuple (filter name, filter options)
|
|
"""
|
|
|
|
return self._output_filter, self._output_filter_options
|
|
|
|
@asyncio.coroutine
|
|
def get_stats(self):
|
|
"""
|
|
Gets statistics for this NIO.
|
|
|
|
:returns: NIO statistics (string with packets in, packets out, bytes in, bytes out)
|
|
"""
|
|
|
|
stats = yield from self._hypervisor.send("nio get_stats {}".format(self._name))
|
|
return stats[0]
|
|
|
|
@asyncio.coroutine
|
|
def reset_stats(self):
|
|
"""
|
|
Resets statistics for this NIO.
|
|
"""
|
|
|
|
yield from self._hypervisor.send("nio reset_stats {}".format(self._name))
|
|
|
|
@property
|
|
def bandwidth(self):
|
|
"""
|
|
Returns the bandwidth constraint for this NIO.
|
|
|
|
:returns: bandwidth integer value (in Kb/s)
|
|
"""
|
|
|
|
return self._bandwidth
|
|
|
|
@asyncio.coroutine
|
|
def set_bandwidth(self, bandwidth):
|
|
"""
|
|
Sets bandwidth constraint.
|
|
|
|
:param bandwidth: bandwidth integer value (in Kb/s)
|
|
"""
|
|
|
|
yield from self._hypervisor.send("nio set_bandwidth {name} {bandwidth}".format(name=self._name, bandwidth=bandwidth))
|
|
self._bandwidth = bandwidth
|
|
|
|
def __str__(self):
|
|
"""
|
|
NIO string representation.
|
|
|
|
:returns: NIO name
|
|
"""
|
|
|
|
return self._name
|
|
|
|
@property
|
|
def name(self):
|
|
"""
|
|
Returns the NIO name.
|
|
|
|
:returns: NIO name
|
|
"""
|
|
|
|
return self._name
|