mirror of
https://github.com/GNS3/gns3-server.git
synced 2024-12-30 17:46:59 +00:00
290 lines
10 KiB
Python
290 lines
10 KiB
Python
#!/usr/bin/env python
|
|
#
|
|
# Copyright (C) 2018 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 logging
|
|
import asyncio
|
|
import psutil
|
|
import ipaddress
|
|
|
|
if sys.platform.startswith("win"):
|
|
import wmi
|
|
|
|
from .base_gns3_vm import BaseGNS3VM
|
|
from .gns3_vm_error import GNS3VMError
|
|
log = logging.getLogger(__name__)
|
|
|
|
|
|
class HyperVGNS3VM(BaseGNS3VM):
|
|
|
|
_HYPERV_VM_STATE_ENABLED = 2
|
|
_HYPERV_VM_STATE_DISABLED = 3
|
|
_HYPERV_VM_STATE_SHUTDOWN = 4
|
|
_HYPERV_VM_STATE_PAUSED = 9
|
|
|
|
_WMI_JOB_STATUS_STARTED = 4096
|
|
_WMI_JOB_STATE_RUNNING = 4
|
|
_WMI_JOB_STATE_COMPLETED = 7
|
|
|
|
def __init__(self, controller):
|
|
|
|
self._engine = "hyper-v"
|
|
super().__init__(controller)
|
|
self._conn = None
|
|
self._vm = None
|
|
self._management = None
|
|
|
|
def _check_requirements(self):
|
|
"""
|
|
Checks if the GNS3 VM can run on Hyper-V.
|
|
"""
|
|
|
|
if not sys.platform.startswith("win"):
|
|
raise GNS3VMError("Hyper-V is only supported on Windows")
|
|
|
|
if sys.getwindowsversion().major < 10:# or sys.getwindowsversion().build < 14393:
|
|
raise GNS3VMError("Windows 10/Windows Server 2016 or a later version is required to run Hyper-V with nested virtualization enabled (version {} detected)".format(sys.getwindowsversion().major))
|
|
|
|
try:
|
|
conn = wmi.WMI()
|
|
except wmi.x_wmi as e:
|
|
raise GNS3VMError("Could not connect to WMI: {}".format(e))
|
|
|
|
if not conn.Win32_ComputerSystem()[0].HypervisorPresent:
|
|
raise GNS3VMError("Hyper-V is not installed or activated")
|
|
|
|
if conn.Win32_Processor()[0].Manufacturer != "GenuineIntel":
|
|
raise GNS3VMError("An Intel processor is required by Hyper-V to support nested virtualization")
|
|
|
|
if not conn.Win32_Processor()[0].VirtualizationFirmwareEnabled:
|
|
raise GNS3VMError("Nested Virtualization (VT-x) is not enabled on this system")
|
|
|
|
def _connect(self):
|
|
"""
|
|
Connects to local host using WMI.
|
|
"""
|
|
|
|
self._check_requirements()
|
|
|
|
try:
|
|
self._conn = wmi.WMI(namespace=r"root\virtualization\v2")
|
|
except wmi.x_wmi as e:
|
|
raise GNS3VMError("Could not connect to WMI: {}".format(e))
|
|
|
|
if not self._conn.Msvm_VirtualSystemManagementService():
|
|
raise GNS3VMError("The Windows account running GNS3 does not have the required permissions for Hyper-V")
|
|
|
|
self._management = self._conn.Msvm_VirtualSystemManagementService()[0]
|
|
|
|
def _find_vm(self, vm_name):
|
|
"""
|
|
Finds a Hyper-V VM.
|
|
"""
|
|
|
|
if self._conn is None:
|
|
self._connect()
|
|
vms = self._conn.Msvm_ComputerSystem(ElementName=vm_name)
|
|
nb_vms = len(vms)
|
|
if nb_vms == 0:
|
|
return None
|
|
elif nb_vms > 1:
|
|
raise GNS3VMError("Duplicate VM name found for {}".format(vm_name))
|
|
else:
|
|
return vms[0]
|
|
|
|
def _is_running(self):
|
|
"""
|
|
Checks if the VM is running.
|
|
"""
|
|
|
|
if self._vm is not None and self._vm.EnabledState == HyperVGNS3VM._HYPERV_VM_STATE_ENABLED:
|
|
return True
|
|
return False
|
|
|
|
def _get_vm_setting_data(self, vm):
|
|
"""
|
|
Gets the VM settings.
|
|
|
|
:param vm: VM instance
|
|
"""
|
|
|
|
vm_settings = vm.associators(wmi_result_class='Msvm_VirtualSystemSettingData')
|
|
return [s for s in vm_settings if s.VirtualSystemType == 'Microsoft:Hyper-V:System:Realized'][0]
|
|
|
|
def _get_vm_resources(self, vm, resource_class):
|
|
"""
|
|
Gets specific VM resource.
|
|
|
|
:param vm: VM instance
|
|
:param resource_class: resource class name
|
|
"""
|
|
|
|
setting_data = self._get_vm_setting_data(vm)
|
|
return setting_data.associators(wmi_result_class=resource_class)
|
|
|
|
def _set_vcpus_ram(self, vcpus, ram):
|
|
"""
|
|
Set the number of vCPU cores and amount of RAM for the GNS3 VM.
|
|
|
|
:param vcpus: number of vCPU cores
|
|
:param ram: amount of RAM
|
|
"""
|
|
|
|
available_vcpus = psutil.cpu_count(logical=False)
|
|
if vcpus > available_vcpus:
|
|
raise GNS3VMError("You have allocated too many vCPUs for the GNS3 VM! (max available is {} vCPUs)".format(available_vcpus))
|
|
|
|
try:
|
|
mem_settings = self._get_vm_resources(self._vm, 'Msvm_MemorySettingData')[0]
|
|
cpu_settings = self._get_vm_resources(self._vm, 'Msvm_ProcessorSettingData')[0]
|
|
|
|
mem_settings.VirtualQuantity = ram
|
|
mem_settings.Reservation = ram
|
|
mem_settings.Limit = ram
|
|
self._management.ModifyResourceSettings(ResourceSettings=[mem_settings.GetText_(1)])
|
|
|
|
cpu_settings.VirtualQuantity = vcpus
|
|
cpu_settings.Reservation = vcpus
|
|
cpu_settings.Limit = 100000 # use 100% of CPU
|
|
cpu_settings.ExposeVirtualizationExtensions = True # allow the VM to use nested virtualization
|
|
self._management.ModifyResourceSettings(ResourceSettings=[cpu_settings.GetText_(1)])
|
|
|
|
log.info("GNS3 VM vCPU count set to {} and RAM amount set to {}".format(vcpus, ram))
|
|
except Exception as e:
|
|
raise GNS3VMError("Could not set to {} and RAM amount set to {}: {}".format(vcpus, ram, e))
|
|
|
|
async def list(self):
|
|
"""
|
|
List all Hyper-V VMs
|
|
"""
|
|
|
|
if self._conn is None:
|
|
self._connect()
|
|
|
|
vms = []
|
|
try:
|
|
for vm in self._conn.Msvm_ComputerSystem():
|
|
if vm.Caption == "Virtual Machine":
|
|
vms.append({"vmname": vm.ElementName})
|
|
except wmi.x_wmi as e:
|
|
raise GNS3VMError("Could not list Hyper-V VMs: {}".format(e))
|
|
return vms
|
|
|
|
def _get_wmi_obj(self, path):
|
|
"""
|
|
Gets the WMI object.
|
|
"""
|
|
|
|
return wmi.WMI(moniker=path.replace('\\', '/'))
|
|
|
|
async def _set_state(self, state):
|
|
"""
|
|
Set the desired state of the VM
|
|
"""
|
|
|
|
if not self._vm:
|
|
self._vm = self._find_vm(self.vmname)
|
|
if not self._vm:
|
|
raise GNS3VMError("Could not find Hyper-V VM {}".format(self.vmname))
|
|
job_path, ret = self._vm.RequestStateChange(state)
|
|
if ret == HyperVGNS3VM._WMI_JOB_STATUS_STARTED:
|
|
job = self._get_wmi_obj(job_path)
|
|
while job.JobState == HyperVGNS3VM._WMI_JOB_STATE_RUNNING:
|
|
await asyncio.sleep(0.1)
|
|
job = self._get_wmi_obj(job_path)
|
|
if job.JobState != HyperVGNS3VM._WMI_JOB_STATE_COMPLETED:
|
|
raise GNS3VMError("Error while changing state: {}".format(job.ErrorSummaryDescription))
|
|
elif ret != 0 or ret != 32775:
|
|
raise GNS3VMError("Failed to change state to {}".format(state))
|
|
|
|
async def start(self):
|
|
"""
|
|
Starts the GNS3 VM.
|
|
"""
|
|
|
|
self._vm = self._find_vm(self.vmname)
|
|
if not self._vm:
|
|
raise GNS3VMError("Could not find Hyper-V VM {}".format(self.vmname))
|
|
|
|
if not self._is_running():
|
|
|
|
log.info("Update GNS3 VM settings")
|
|
# set the number of vCPUs and amount of RAM
|
|
self._set_vcpus_ram(self.vcpus, self.ram)
|
|
|
|
# start the VM
|
|
try:
|
|
await self._set_state(HyperVGNS3VM._HYPERV_VM_STATE_ENABLED)
|
|
except GNS3VMError as e:
|
|
raise GNS3VMError("Failed to start the GNS3 VM: {}".format(e))
|
|
log.info("GNS3 VM has been started")
|
|
|
|
# Get the guest IP address
|
|
trial = 120
|
|
guest_ip_address = ""
|
|
log.info("Waiting for GNS3 VM IP")
|
|
ports = self._get_vm_resources(self._vm, 'Msvm_EthernetPortAllocationSettingData')
|
|
vnics = self._get_vm_resources(self._vm, 'Msvm_SyntheticEthernetPortSettingData')
|
|
while True:
|
|
for port in ports:
|
|
vnic = [v for v in vnics if port.Parent == v.path_()][0]
|
|
config = vnic.associators(wmi_result_class='Msvm_GuestNetworkAdapterConfiguration')
|
|
ip_addresses = config[0].IPAddresses
|
|
for ip_address in ip_addresses:
|
|
# take the first valid IPv4 address
|
|
try:
|
|
ipaddress.IPv4Address(ip_address)
|
|
guest_ip_address = ip_address
|
|
except ipaddress.AddressValueError:
|
|
continue
|
|
if len(ip_addresses):
|
|
guest_ip_address = ip_addresses[0]
|
|
break
|
|
trial -= 1
|
|
if guest_ip_address:
|
|
break
|
|
elif trial == 0:
|
|
raise GNS3VMError("Could not find guest IP address for {}".format(self.vmname))
|
|
await asyncio.sleep(1)
|
|
self.ip_address = guest_ip_address
|
|
log.info("GNS3 VM IP address set to {}".format(guest_ip_address))
|
|
self.running = True
|
|
|
|
async def suspend(self):
|
|
"""
|
|
Suspends the GNS3 VM.
|
|
"""
|
|
|
|
try:
|
|
await self._set_state(HyperVGNS3VM._HYPERV_VM_STATE_PAUSED)
|
|
except GNS3VMError as e:
|
|
raise GNS3VMError("Failed to suspend the GNS3 VM: {}".format(e))
|
|
log.info("GNS3 VM has been suspended")
|
|
self.running = False
|
|
|
|
async def stop(self):
|
|
"""
|
|
Stops the GNS3 VM.
|
|
"""
|
|
|
|
try:
|
|
await self._set_state(HyperVGNS3VM._HYPERV_VM_STATE_SHUTDOWN)
|
|
except GNS3VMError as e:
|
|
raise GNS3VMError("Failed to stop the GNS3 VM: {}".format(e))
|
|
log.info("GNS3 VM has been stopped")
|
|
self.running = False
|