mirror of
https://github.com/GNS3/gns3-server
synced 2024-11-24 17:28:08 +00:00
402 lines
14 KiB
Python
402 lines
14 KiB
Python
#!/usr/bin/env python
|
|
#
|
|
# Copyright (C) 2016 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/>.
|
|
|
|
import sys
|
|
import copy
|
|
import asyncio
|
|
import aiohttp
|
|
import ipaddress
|
|
|
|
from ...utils.asyncio import locking
|
|
from .vmware_gns3_vm import VMwareGNS3VM
|
|
from .virtualbox_gns3_vm import VirtualBoxGNS3VM
|
|
from .hyperv_gns3_vm import HyperVGNS3VM
|
|
from .remote_gns3_vm import RemoteGNS3VM
|
|
from .gns3_vm_error import GNS3VMError
|
|
from ...version import __version__
|
|
from ..compute import ComputeError
|
|
|
|
import logging
|
|
log = logging.getLogger(__name__)
|
|
|
|
|
|
class GNS3VM:
|
|
"""
|
|
Proxy between the controller and the GNS3 VM engine
|
|
"""
|
|
|
|
def __init__(self, controller, settings={}):
|
|
self._controller = controller
|
|
# Keep instance of the loaded engines
|
|
self._engines = {}
|
|
self._settings = {
|
|
"vmname": None,
|
|
"when_exit": "stop",
|
|
"headless": False,
|
|
"enable": False,
|
|
"engine": "vmware",
|
|
"ram": 2048,
|
|
"vcpus": 1
|
|
}
|
|
self.settings = settings
|
|
|
|
def engine_list(self):
|
|
"""
|
|
:returns: Return list of engines supported by GNS3 for the GNS3VM
|
|
"""
|
|
|
|
download_url = "https://github.com/GNS3/gns3-gui/releases/download/v{version}/GNS3.VM.VMware.Workstation.{version}.zip".format(version=__version__)
|
|
vmware_info = {
|
|
"engine_id": "vmware",
|
|
"description": 'VMware is the recommended choice for best performances.<br>The GNS3 VM can be <a href="{}">downloaded here</a>.'.format(download_url),
|
|
"support_when_exit": True,
|
|
"support_headless": True,
|
|
"support_ram": True
|
|
}
|
|
if sys.platform.startswith("darwin"):
|
|
vmware_info["name"] = "VMware Fusion (recommended)"
|
|
else:
|
|
vmware_info["name"] = "VMware Workstation / Player (recommended)"
|
|
|
|
hyperv_info = {
|
|
"engine_id": "hyper-v",
|
|
"name": "Hyper-V",
|
|
"description": 'Hyper-V support (Windows 10/Server 2016 and above). Nested virtualization must be supported and enabled (Intel processor only)',
|
|
"support_when_exit": True,
|
|
"support_headless": False,
|
|
"support_ram": True
|
|
}
|
|
|
|
download_url = "https://github.com/GNS3/gns3-gui/releases/download/v{version}/GNS3.VM.VirtualBox.{version}.zip".format(version=__version__)
|
|
virtualbox_info = {
|
|
"engine_id": "virtualbox",
|
|
"name": "VirtualBox",
|
|
"description": 'VirtualBox doesn\'t support nested virtualization, this means Qemu based VMs will run extremely slowly.<br>The GNS3 VM can be <a href="{}">downloaded here</a>'.format(download_url),
|
|
"support_when_exit": True,
|
|
"support_headless": True,
|
|
"support_ram": True
|
|
}
|
|
|
|
remote_info = {
|
|
"engine_id": "remote",
|
|
"name": "Remote",
|
|
"description": "Use a remote GNS3 server as the GNS3 VM.",
|
|
"support_when_exit": False,
|
|
"support_headless": False,
|
|
"support_ram": False
|
|
}
|
|
|
|
engines = [vmware_info,
|
|
virtualbox_info,
|
|
remote_info]
|
|
|
|
if sys.platform.startswith("win"):
|
|
engines.append(hyperv_info)
|
|
|
|
return engines
|
|
|
|
def current_engine(self):
|
|
|
|
return self._get_engine(self._settings["engine"])
|
|
|
|
@property
|
|
def engine(self):
|
|
|
|
return self._settings["engine"]
|
|
|
|
@property
|
|
def ip_address(self):
|
|
"""
|
|
Returns the GNS3 VM IP address.
|
|
|
|
:returns: VM IP address
|
|
"""
|
|
|
|
return self.current_engine().ip_address
|
|
|
|
@property
|
|
def running(self):
|
|
"""
|
|
Returns if the GNS3 VM is running.
|
|
|
|
:returns: Boolean
|
|
"""
|
|
|
|
return self.current_engine().running
|
|
|
|
@property
|
|
def user(self):
|
|
"""
|
|
Returns the GNS3 VM user.
|
|
|
|
:returns: VM user
|
|
"""
|
|
|
|
return self.current_engine().user
|
|
|
|
@property
|
|
def password(self):
|
|
"""
|
|
Returns the GNS3 VM password.
|
|
|
|
:returns: VM password
|
|
"""
|
|
|
|
return self.current_engine().password
|
|
|
|
@property
|
|
def port(self):
|
|
"""
|
|
Returns the GNS3 VM port.
|
|
|
|
:returns: VM port
|
|
"""
|
|
|
|
return self.current_engine().port
|
|
|
|
@property
|
|
def protocol(self):
|
|
"""
|
|
Returns the GNS3 VM protocol.
|
|
|
|
:returns: VM protocol
|
|
"""
|
|
|
|
return self.current_engine().protocol
|
|
|
|
@property
|
|
def enable(self):
|
|
"""
|
|
The GNSVM is activated
|
|
"""
|
|
|
|
return self._settings.get("enable", False)
|
|
|
|
@property
|
|
def when_exit(self):
|
|
"""
|
|
What should be done when exit
|
|
"""
|
|
|
|
return self._settings["when_exit"]
|
|
|
|
@property
|
|
def settings(self):
|
|
|
|
return self._settings
|
|
|
|
@settings.setter
|
|
def settings(self, val):
|
|
|
|
self._settings.update(val)
|
|
|
|
async def update_settings(self, settings):
|
|
"""
|
|
Update settings and will restart the VM if require
|
|
"""
|
|
|
|
new_settings = copy.copy(self._settings)
|
|
new_settings.update(settings)
|
|
if self.settings != new_settings:
|
|
try:
|
|
await self._stop()
|
|
finally:
|
|
self._settings = settings
|
|
self._controller.save()
|
|
if self.enable:
|
|
await self.start()
|
|
else:
|
|
# When user fix something on his system and try again
|
|
if self.enable and not self.current_engine().running:
|
|
await self.start()
|
|
|
|
def _get_engine(self, engine):
|
|
"""
|
|
Load an engine
|
|
"""
|
|
|
|
if engine in self._engines:
|
|
return self._engines[engine]
|
|
|
|
if engine == "vmware":
|
|
self._engines["vmware"] = VMwareGNS3VM(self._controller)
|
|
return self._engines["vmware"]
|
|
elif engine == "hyper-v":
|
|
self._engines["hyper-v"] = HyperVGNS3VM(self._controller)
|
|
return self._engines["hyper-v"]
|
|
elif engine == "virtualbox":
|
|
self._engines["virtualbox"] = VirtualBoxGNS3VM(self._controller)
|
|
return self._engines["virtualbox"]
|
|
elif engine == "remote":
|
|
self._engines["remote"] = RemoteGNS3VM(self._controller)
|
|
return self._engines["remote"]
|
|
raise NotImplementedError("The engine {} for the GNS3 VM is not supported".format(engine))
|
|
|
|
def __json__(self):
|
|
return self._settings
|
|
|
|
async def list(self, engine):
|
|
"""
|
|
List VMS for an engine
|
|
"""
|
|
|
|
engine = self._get_engine(engine)
|
|
vms = []
|
|
try:
|
|
for vm in (await engine.list()):
|
|
vms.append({"vmname": vm["vmname"]})
|
|
except GNS3VMError as e:
|
|
# We raise error only if user activated the GNS3 VM
|
|
# otherwise you have noise when VMware is not installed
|
|
if self.enable:
|
|
raise e
|
|
return vms
|
|
|
|
async def auto_start_vm(self):
|
|
"""
|
|
Auto start the GNS3 VM if require
|
|
"""
|
|
|
|
if self.enable:
|
|
try:
|
|
await self.start()
|
|
except GNS3VMError as e:
|
|
# User will receive the error later when they will try to use the node
|
|
try:
|
|
compute = await self._controller.add_compute(compute_id="vm",
|
|
name="GNS3 VM ({})".format(self.current_engine().vmname),
|
|
host=None,
|
|
force=True)
|
|
compute.set_last_error(str(e))
|
|
|
|
except aiohttp.web.HTTPConflict:
|
|
pass
|
|
log.error("Cannot start the GNS3 VM: {}".format(e))
|
|
|
|
async def exit_vm(self):
|
|
|
|
if self.enable:
|
|
try:
|
|
if self._settings["when_exit"] == "stop":
|
|
await self._stop()
|
|
elif self._settings["when_exit"] == "suspend":
|
|
await self._suspend()
|
|
except GNS3VMError as e:
|
|
log.warning(str(e))
|
|
|
|
@locking
|
|
async def start(self):
|
|
"""
|
|
Start the GNS3 VM
|
|
"""
|
|
|
|
engine = self.current_engine()
|
|
if not engine.running:
|
|
if self._settings["vmname"] is None:
|
|
return
|
|
log.info("Start the GNS3 VM")
|
|
engine.vmname = self._settings["vmname"]
|
|
engine.ram = self._settings["ram"]
|
|
engine.vcpus = self._settings["vcpus"]
|
|
engine.headless = self._settings["headless"]
|
|
compute = await self._controller.add_compute(compute_id="vm",
|
|
name="GNS3 VM is starting ({})".format(engine.vmname),
|
|
host=None,
|
|
force=True,
|
|
connect=False)
|
|
|
|
try:
|
|
await engine.start()
|
|
except Exception as e:
|
|
await self._controller.delete_compute("vm")
|
|
log.error("Cannot start the GNS3 VM: {}".format(str(e)))
|
|
await compute.update(name="GNS3 VM ({})".format(engine.vmname))
|
|
compute.set_last_error(str(e))
|
|
raise e
|
|
await compute.connect() # we can connect now that the VM has started
|
|
await compute.update(name="GNS3 VM ({})".format(engine.vmname),
|
|
protocol=self.protocol,
|
|
host=self.ip_address,
|
|
port=self.port,
|
|
user=self.user,
|
|
password=self.password)
|
|
|
|
# check if the VM is in the same subnet as the local server, start 10 seconds later to give
|
|
# some time for the compute in the VM to be ready for requests
|
|
asyncio.get_event_loop().call_later(10, lambda: asyncio.ensure_future(self._check_network(compute)))
|
|
|
|
async def _check_network(self, compute):
|
|
"""
|
|
Check that the VM is in the same subnet as the local server
|
|
"""
|
|
|
|
try:
|
|
vm_interfaces = await compute.interfaces()
|
|
vm_interface_netmask = None
|
|
for interface in vm_interfaces:
|
|
if interface["ip_address"] == self.ip_address:
|
|
vm_interface_netmask = interface["netmask"]
|
|
break
|
|
if vm_interface_netmask:
|
|
vm_network = ipaddress.ip_interface("{}/{}".format(compute.host_ip, vm_interface_netmask)).network
|
|
for compute_id in self._controller.computes:
|
|
if compute_id == "local":
|
|
compute = self._controller.get_compute(compute_id)
|
|
interfaces = await compute.interfaces()
|
|
netmask = None
|
|
for interface in interfaces:
|
|
if interface["ip_address"] == compute.host_ip:
|
|
netmask = interface["netmask"]
|
|
break
|
|
if netmask:
|
|
compute_network = ipaddress.ip_interface("{}/{}".format(compute.host_ip, netmask)).network
|
|
if vm_network.compare_networks(compute_network) != 0:
|
|
msg = "The GNS3 VM (IP={}, NETWORK={}) is not on the same network as the {} server (IP={}, NETWORK={}), please make sure the local server binding is in the same network as the GNS3 VM".format(self.ip_address,
|
|
vm_network,
|
|
compute_id,
|
|
compute.host_ip,
|
|
compute_network)
|
|
self._controller.notification.controller_emit("log.warning", {"message": msg})
|
|
except ComputeError as e:
|
|
log.warning("Could not check the VM is in the same subnet as the local server: {}".format(e))
|
|
except aiohttp.web.HTTPConflict as e:
|
|
log.warning("Could not check the VM is in the same subnet as the local server: {}".format(e.text))
|
|
|
|
@locking
|
|
async def _suspend(self):
|
|
"""
|
|
Suspend the GNS3 VM
|
|
"""
|
|
engine = self.current_engine()
|
|
if "vm" in self._controller.computes:
|
|
await self._controller.delete_compute("vm")
|
|
if engine.running:
|
|
log.info("Suspend the GNS3 VM")
|
|
await engine.suspend()
|
|
|
|
@locking
|
|
async def _stop(self):
|
|
"""
|
|
Stop the GNS3 VM
|
|
"""
|
|
engine = self.current_engine()
|
|
if "vm" in self._controller.computes:
|
|
await self._controller.delete_compute("vm")
|
|
if engine.running:
|
|
log.info("Stop the GNS3 VM")
|
|
await engine.stop()
|