mirror of
https://github.com/GNS3/gns3-server
synced 2024-11-15 21:08:55 +00:00
456 lines
16 KiB
Python
456 lines
16 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/>.
|
|
|
|
"""
|
|
Dynamips server module.
|
|
"""
|
|
|
|
import sys
|
|
import os
|
|
import base64
|
|
import tempfile
|
|
import shutil
|
|
from gns3server.modules import IModule
|
|
import gns3server.jsonrpc as jsonrpc
|
|
|
|
from .hypervisor import Hypervisor
|
|
from .hypervisor_manager import HypervisorManager
|
|
from .dynamips_error import DynamipsError
|
|
|
|
# Nodes
|
|
from .nodes.router import Router
|
|
from .nodes.c1700 import C1700
|
|
from .nodes.c2600 import C2600
|
|
from .nodes.c2691 import C2691
|
|
from .nodes.c3600 import C3600
|
|
from .nodes.c3725 import C3725
|
|
from .nodes.c3745 import C3745
|
|
from .nodes.c7200 import C7200
|
|
from .nodes.bridge import Bridge
|
|
from .nodes.ethernet_switch import EthernetSwitch
|
|
from .nodes.atm_switch import ATMSwitch
|
|
from .nodes.atm_bridge import ATMBridge
|
|
from .nodes.frame_relay_switch import FrameRelaySwitch
|
|
from .nodes.hub import Hub
|
|
|
|
# Adapters
|
|
from .adapters.c7200_io_2fe import C7200_IO_2FE
|
|
from .adapters.c7200_io_fe import C7200_IO_FE
|
|
from .adapters.c7200_io_ge_e import C7200_IO_GE_E
|
|
from .adapters.nm_16esw import NM_16ESW
|
|
from .adapters.nm_1e import NM_1E
|
|
from .adapters.nm_1fe_tx import NM_1FE_TX
|
|
from .adapters.nm_4e import NM_4E
|
|
from .adapters.nm_4t import NM_4T
|
|
from .adapters.pa_2fe_tx import PA_2FE_TX
|
|
from .adapters.pa_4e import PA_4E
|
|
from .adapters.pa_4t import PA_4T
|
|
from .adapters.pa_8e import PA_8E
|
|
from .adapters.pa_8t import PA_8T
|
|
from .adapters.pa_a1 import PA_A1
|
|
from .adapters.pa_fe_tx import PA_FE_TX
|
|
from .adapters.pa_ge import PA_GE
|
|
from .adapters.pa_pos_oc3 import PA_POS_OC3
|
|
from .adapters.wic_1t import WIC_1T
|
|
from .adapters.wic_2t import WIC_2T
|
|
from .adapters.wic_1enet import WIC_1ENET
|
|
|
|
# NIOs
|
|
from .nios.nio_udp import NIO_UDP
|
|
from .nios.nio_udp_auto import NIO_UDP_auto
|
|
from .nios.nio_unix import NIO_UNIX
|
|
from .nios.nio_vde import NIO_VDE
|
|
from .nios.nio_tap import NIO_TAP
|
|
from .nios.nio_generic_ethernet import NIO_GenericEthernet
|
|
from .nios.nio_linux_ethernet import NIO_LinuxEthernet
|
|
from .nios.nio_fifo import NIO_FIFO
|
|
from .nios.nio_mcast import NIO_Mcast
|
|
from .nios.nio_null import NIO_Null
|
|
|
|
from .backends import vm
|
|
from .backends import ethsw
|
|
from .backends import ethhub
|
|
from .backends import frsw
|
|
from .backends import atmsw
|
|
|
|
import logging
|
|
log = logging.getLogger(__name__)
|
|
|
|
|
|
class Dynamips(IModule):
|
|
"""
|
|
Dynamips module.
|
|
|
|
:param name: module name
|
|
:param args: arguments for the module
|
|
:param kwargs: named arguments for the module
|
|
"""
|
|
|
|
def __init__(self, name, *args, **kwargs):
|
|
|
|
IModule.__init__(self, name, *args, **kwargs)
|
|
|
|
self._hypervisor_manager = None
|
|
self._hypervisor_manager_settings = {}
|
|
self._routers = {}
|
|
self._ethernet_switches = {}
|
|
self._frame_relay_switches = {}
|
|
self._atm_switches = {}
|
|
self._ethernet_hubs = {}
|
|
self._projects_dir = kwargs["projects_dir"]
|
|
self._tempdir = kwargs["temp_dir"]
|
|
self._working_dir = self._projects_dir
|
|
self._dynamips = ""
|
|
self._host = kwargs["host"]
|
|
|
|
if not sys.platform.startswith("win32"):
|
|
#FIXME: pickle issues Windows
|
|
self._callback = self.add_periodic_callback(self._check_hypervisors, 5000)
|
|
self._callback.start()
|
|
|
|
def stop(self):
|
|
"""
|
|
Properly stops the module.
|
|
"""
|
|
|
|
if not sys.platform.startswith("win32"):
|
|
self._callback.stop()
|
|
if self._hypervisor_manager:
|
|
self._hypervisor_manager.stop_all_hypervisors()
|
|
IModule.stop(self) # this will stop the I/O loop
|
|
|
|
def _check_hypervisors(self):
|
|
"""
|
|
Periodic callback to check if Dynamips hypervisors are running.
|
|
|
|
Sends a notification to the client if not.
|
|
"""
|
|
|
|
if self._hypervisor_manager:
|
|
for hypervisor in self._hypervisor_manager.hypervisors:
|
|
if hypervisor.started and not hypervisor.is_running():
|
|
notification = {"module": self.name}
|
|
stdout = hypervisor.read_stdout()
|
|
device_names = []
|
|
for device in hypervisor.devices:
|
|
device_names.append(device.name)
|
|
notification["message"] = "Dynamips has stopped running"
|
|
notification["details"] = stdout
|
|
notification["devices"] = device_names
|
|
self.send_notification("{}.dynamips_stopped".format(self.name), notification)
|
|
hypervisor.stop()
|
|
|
|
@IModule.route("dynamips.reset")
|
|
def reset(self, request):
|
|
"""
|
|
Resets the module.
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
# stop all Dynamips hypervisors
|
|
if self._hypervisor_manager:
|
|
self._hypervisor_manager.stop_all_hypervisors()
|
|
|
|
# resets the instance counters
|
|
Router.reset()
|
|
EthernetSwitch.reset()
|
|
Hub.reset()
|
|
FrameRelaySwitch.reset()
|
|
ATMSwitch.reset()
|
|
NIO_UDP.reset()
|
|
NIO_UDP_auto.reset()
|
|
NIO_UNIX.reset()
|
|
NIO_VDE.reset()
|
|
NIO_TAP.reset()
|
|
NIO_GenericEthernet.reset()
|
|
NIO_LinuxEthernet.reset()
|
|
NIO_FIFO.reset()
|
|
NIO_Mcast.reset()
|
|
NIO_Null.reset()
|
|
|
|
self._routers.clear()
|
|
self._ethernet_switches.clear()
|
|
self._frame_relay_switches.clear()
|
|
self._atm_switches.clear()
|
|
|
|
self._hypervisor_manager = None
|
|
log.info("dynamips module has been reset")
|
|
|
|
def start_hypervisor_manager(self):
|
|
"""
|
|
Starts the hypervisor manager.
|
|
"""
|
|
|
|
# check if Dynamips path exists
|
|
if not os.path.isfile(self._dynamips):
|
|
raise DynamipsError("Dynamips executable {} doesn't exist".format(self._dynamips))
|
|
|
|
# check if Dynamips is executable
|
|
if not os.access(self._dynamips, os.X_OK):
|
|
raise DynamipsError("Dynamips {} is not executable".format(self._dynamips))
|
|
|
|
try:
|
|
workdir = os.path.join(self._working_dir, "dynamips")
|
|
os.makedirs(workdir)
|
|
except FileExistsError:
|
|
pass
|
|
except OSError as e:
|
|
raise DynamipsError("Could not create working directory {}".format(e))
|
|
|
|
# check if the working directory is writable
|
|
if not os.access(workdir, os.W_OK):
|
|
raise DynamipsError("Cannot write to working directory {}".format(workdir))
|
|
|
|
log.info("starting the hypervisor manager with Dynamips working directory set to '{}'".format(workdir))
|
|
self._hypervisor_manager = HypervisorManager(self._dynamips, workdir, self._host)
|
|
|
|
for name, value in self._hypervisor_manager_settings.items():
|
|
if hasattr(self._hypervisor_manager, name) and getattr(self._hypervisor_manager, name) != value:
|
|
setattr(self._hypervisor_manager, name, value)
|
|
|
|
@IModule.route("dynamips.settings")
|
|
def settings(self, request):
|
|
"""
|
|
Set or update settings.
|
|
|
|
Mandatory request parameters:
|
|
- path (path to the Dynamips executable)
|
|
|
|
Optional request parameters:
|
|
- working_dir (path to a working directory)
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
if request == None:
|
|
self.send_param_error()
|
|
return
|
|
|
|
log.debug("received request {}".format(request))
|
|
|
|
#TODO: JSON schema validation
|
|
if not self._hypervisor_manager:
|
|
self._dynamips = request.pop("path")
|
|
|
|
if "working_dir" in request:
|
|
self._working_dir = request.pop("working_dir")
|
|
log.info("this server is local")
|
|
else:
|
|
self._working_dir = os.path.join(self._projects_dir, request["project_name"])
|
|
log.info("this server is remote with working directory path to {}".format(self._working_dir))
|
|
|
|
self._hypervisor_manager_settings = request
|
|
|
|
else:
|
|
if "project_name" in request:
|
|
new_working_dir = os.path.join(self._projects_dir, request["project_name"])
|
|
if self._projects_dir != self._working_dir != new_working_dir:
|
|
|
|
# trick to avoid file locks by Dynamips on Windows
|
|
if sys.platform.startswith("win"):
|
|
self._hypervisor_manager.working_dir = tempfile.gettempdir()
|
|
|
|
if not os.path.isdir(new_working_dir):
|
|
try:
|
|
shutil.move(self._working_dir, new_working_dir)
|
|
except OSError as e:
|
|
log.error("could not move working directory from {} to {}: {}".format(self._working_dir,
|
|
new_working_dir,
|
|
e))
|
|
return
|
|
|
|
self._hypervisor_manager.working_dir = os.path.join(new_working_dir, "dynamips")
|
|
self._working_dir = new_working_dir
|
|
|
|
# apply settings to the hypervisor manager
|
|
for name, value in request.items():
|
|
if hasattr(self._hypervisor_manager, name) and getattr(self._hypervisor_manager, name) != value:
|
|
setattr(self._hypervisor_manager, name, value)
|
|
|
|
@IModule.route("dynamips.echo")
|
|
def echo(self, request):
|
|
"""
|
|
Echo end point for testing purposes.
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
if request == None:
|
|
self.send_param_error()
|
|
else:
|
|
log.debug("received request {}".format(request))
|
|
self.send_response(request)
|
|
|
|
def create_nio(self, node, request):
|
|
"""
|
|
Creates a new NIO.
|
|
|
|
:param node: node requesting the NIO
|
|
:param request: the original request with the
|
|
necessary information to create the NIO
|
|
|
|
:returns: a NIO object
|
|
"""
|
|
|
|
#TODO: JSON schema validation
|
|
nio = None
|
|
if request["nio"] == "NIO_UDP":
|
|
lport = request["lport"]
|
|
rhost = request["rhost"]
|
|
rport = request["rport"]
|
|
nio = NIO_UDP(node.hypervisor, lport, rhost, rport)
|
|
# elif request["nio"] == "NIO_UDP_Auto":
|
|
# lhost = request["lhost"]
|
|
# lport_start = request["lport_start"]
|
|
# lport_end = request["lport_end"]
|
|
# nio = NIO_UDP_auto(node.hypervisor, lhost, lport_start, lport_end)
|
|
elif request["nio"] == "NIO_GenericEthernet":
|
|
ethernet_device = request["ethernet_device"]
|
|
nio = NIO_GenericEthernet(node.hypervisor, ethernet_device)
|
|
elif request["nio"] == "NIO_LinuxEthernet":
|
|
ethernet_device = request["ethernet_device"]
|
|
nio = NIO_LinuxEthernet(node.hypervisor, ethernet_device)
|
|
elif request["nio"] == "NIO_TAP":
|
|
tap_device = request["tap_device"]
|
|
nio = NIO_TAP(node.hypervisor, tap_device)
|
|
elif request["nio"] == "NIO_UNIX":
|
|
local_file = request["local_file"]
|
|
remote_file = request["remote_file"]
|
|
nio = NIO_UNIX(node.hypervisor, local_file, remote_file)
|
|
elif request["nio"] == "NIO_VDE":
|
|
control_file = request["control_file"]
|
|
local_file = request["local_file"]
|
|
nio = NIO_VDE(node.hypervisor, control_file, local_file)
|
|
elif request["nio"] == "NIO_Null":
|
|
nio = NIO_Null(node.hypervisor)
|
|
return nio
|
|
|
|
def allocate_udp_port(self, node):
|
|
"""
|
|
Allocates a UDP port in order to create an UDP NIO.
|
|
|
|
:param node: the node that needs to allocate an UDP port
|
|
|
|
:returns: dictionary with the allocated host/port info
|
|
"""
|
|
|
|
port = node.hypervisor.allocate_udp_port()
|
|
host = node.hypervisor.host
|
|
|
|
log.info("{} [id={}] has allocated UDP port {} with host {}".format(node.name,
|
|
node.id,
|
|
port,
|
|
host))
|
|
response = {"lport": port}
|
|
|
|
return response
|
|
|
|
# def allocate_udp_port_auto(self, node, lport_start, lport_end):
|
|
# """
|
|
# Allocates a UDP port in order to create an UDP NIO Auto.
|
|
#
|
|
# :param node: the node that needs to allocate an UDP port
|
|
# """
|
|
#
|
|
# self._nio_udp_auto = NIO_UDP_auto(node.hypervisor, node.hypervisor.host, lport_start, lport_end)
|
|
#
|
|
# response = {"lport": self._nio_udp_auto.lport,
|
|
# "lhost": self._nio_udp_auto.lhost}
|
|
#
|
|
# return response
|
|
|
|
def set_ghost_ios(self, router):
|
|
"""
|
|
Manages Ghost IOS support.
|
|
|
|
:param router: Router instance
|
|
"""
|
|
|
|
if not router.mmap:
|
|
raise DynamipsError("mmap support is required to enable ghost IOS support")
|
|
|
|
ghost_instance = router.formatted_ghost_file()
|
|
all_ghosts = []
|
|
|
|
# search of an existing ghost instance across all hypervisors
|
|
for hypervisor in self._hypervisor_manager.hypervisors:
|
|
all_ghosts.extend(hypervisor.ghosts)
|
|
|
|
if ghost_instance not in all_ghosts:
|
|
# create a new ghost IOS instance
|
|
ghost = Router(router.hypervisor, "ghost-" + ghost_instance, router.platform, ghost_flag=True)
|
|
ghost.image = router.image
|
|
# for 7200s, the NPE must be set when using an NPE-G2.
|
|
if router.platform == "c7200":
|
|
ghost.npe = router.npe
|
|
ghost.ghost_status = 1
|
|
ghost.ghost_file = ghost_instance
|
|
ghost.ram = router.ram
|
|
ghost.start()
|
|
ghost.stop()
|
|
ghost.delete()
|
|
|
|
if router.ghost_file != ghost_instance:
|
|
# set the ghost file to the router
|
|
router.ghost_status = 2
|
|
router.ghost_file = ghost_instance
|
|
|
|
def save_base64config(self, config_base64, router, config_filename):
|
|
"""
|
|
Saves a base64 encoded config (decoded) to a file.
|
|
|
|
:param config_base64: base64 encoded config
|
|
:param router: router instance
|
|
:param config_filename: file name to save the config
|
|
|
|
:returns: relative path to the config file
|
|
"""
|
|
|
|
config = base64.decodestring(config_base64.encode("utf-8")).decode("utf-8")
|
|
config = "!\n" + config.replace("\r", "")
|
|
config = config.replace('%h', router.name)
|
|
config_dir = os.path.join(router.hypervisor.working_dir, "configs")
|
|
try:
|
|
os.makedirs(config_dir)
|
|
except FileExistsError:
|
|
pass
|
|
except OSError as e:
|
|
raise DynamipsError("Could not create configs directory: {}".format(e))
|
|
config_path = os.path.join(config_dir, config_filename)
|
|
try:
|
|
with open(config_path, "w") as f:
|
|
log.info("saving startup-config to {}".format(config_path))
|
|
f.write(config)
|
|
except OSError as e:
|
|
raise DynamipsError("Could not save the configuration {}: {}".format(config_path, e))
|
|
return "configs" + os.sep + os.path.basename(config_path)
|
|
|
|
@IModule.route("dynamips.nio.get_interfaces")
|
|
def nio_get_interfaces(self, request):
|
|
"""
|
|
Get all the network interfaces on this host.
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
try:
|
|
import netifaces
|
|
except ImportError:
|
|
raise DynamipsError("The netifaces module is not installed")
|
|
self.send_response(netifaces.interfaces())
|