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Early Hyper-V support to run the GNS3 VM. Ref https://github.com/GNS3/gns3-gui/issues/763.

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This commit is contained in:
grossmj 2018-08-10 16:18:14 +07:00
parent 652d5788c3
commit c9767a06b3
3 changed files with 259 additions and 5 deletions
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26
gns3server/controller/gns3vm/__init__.py
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@ -24,6 +24,7 @@ import ipaddress
from ...utils.asyncio import locked_coroutine, asyncio_ensure_future
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__
@ -71,6 +72,15 @@ class GNS3VM:
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": True,
"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",
@ -90,11 +100,14 @@ class GNS3VM:
"support_ram": False
}
return [
vmware_info,
virtualbox_info,
remote_info
]
engines = [vmware_info,
virtualbox_info,
remote_info]
if sys.platform.startswith("win"):
engines.append(hyperv_info)
return engines
def current_engine(self):
@ -221,6 +234,9 @@ class GNS3VM:
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"]

237
gns3server/controller/gns3vm/hyperv_gns3_vm.py Normal file
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@ -0,0 +1,237 @@
#!/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
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_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") or sys.getwindowsversion().major < 10:
raise GNS3VMError("Hyper-V nested virtualization is only supported on Windows 10 and Windows Server 2016 or later")
conn = wmi.WMI()
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_ComputerSystem()[0].HypervisorPresent:
raise GNS3VMError("Hyper-V is not installed")
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:
print("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]
self._vm = self._find_vm(self.vmname)
def _find_vm(self, vm_name):
"""
Finds a Hyper-V VM.
"""
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 _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:
vm_settings = self._vm.associators(wmi_result_class='Msvm_VirtualSystemSettingData')[0]
mem_settings = vm_settings.associators(wmi_result_class='Msvm_MemorySettingData')[0]
cpu_settings = vm_settings.associators(wmi_result_class='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))
@asyncio.coroutine
def list(self):
"""
List all Hyper-V VMs
"""
vms = []
try:
for vm in self._conn.Msvm_ComputerSystem():
if vm.Caption == "Virtual Machine":
vms.append(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('\\', '/'))
@asyncio.coroutine
def _set_state(self, state):
"""
Set the desired state of the VM
"""
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:
yield from 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))
@asyncio.coroutine
def start(self):
"""
Starts the GNS3 VM.
"""
if self._conn is None:
self._connect()
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:
yield from 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")
#TODO: get the guest IP address
#self.ip_address = guest_ip_address
#log.info("GNS3 VM IP address set to {}".format(guest_ip_address))
self.running = True
@asyncio.coroutine
def suspend(self):
"""
Suspend the GNS3 VM.
"""
if self._conn is None:
self._connect()
try:
yield from 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
@asyncio.coroutine
def stop(self):
"""
Stops the GNS3 VM.
"""
if self._conn is None:
self._connect()
try:
yield from self._set_state(HyperVGNS3VM._HYPERV_VM_STATE_DISABLED)
except GNS3VMError as e:
raise GNS3VMError("Failed to stop the GNS3 VM: {}".format(e))
log.info("GNS3 VM has been stopped")
self.running = False

1
win-requirements.txt
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@ -1,3 +1,4 @@
-rrequirements.txt
pywin32>=223 # pyup: ignore
wmi==1.4.9