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gns3-server/gns3server/modules/vmware/__init__.py

671 lines
27 KiB
Python

# -*- coding: utf-8 -*-
#
# Copyright (C) 2015 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/>.
"""
VMware player/workstation server module.
"""
import os
import sys
import re
import shutil
import asyncio
import subprocess
import logging
import codecs
from collections import OrderedDict
from gns3server.utils.interfaces import interfaces
from gns3server.utils.asyncio import subprocess_check_output
from pkg_resources import parse_version
log = logging.getLogger(__name__)
from gns3server.modules.base_manager import BaseManager
from gns3server.modules.vmware.vmware_vm import VMwareVM
from gns3server.modules.vmware.vmware_error import VMwareError
from gns3server.modules.vmware.nio_vmnet import NIOVMNET
class VMware(BaseManager):
_VM_CLASS = VMwareVM
def __init__(self):
super().__init__()
self._execute_lock = asyncio.Lock()
self._vmware_inventory_lock = asyncio.Lock()
self._vmrun_path = None
self._vmnets = []
self._vmnet_start_range = 2
if sys.platform.startswith("win"):
self._vmnet_end_range = 19
else:
self._vmnet_end_range = 255
@property
def vmrun_path(self):
"""
Returns the path vmrun utility.
:returns: path
"""
return self._vmrun_path
@staticmethod
def _find_vmrun_registry(regkey):
import winreg
try:
# default path not used, let's look in the registry
hkey = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, regkey)
install_path, _ = winreg.QueryValueEx(hkey, "InstallPath")
vmrun_path = os.path.join(install_path, "vmrun.exe")
winreg.CloseKey(hkey)
if os.path.exists(vmrun_path):
return vmrun_path
except OSError:
pass
return None
def find_vmrun(self):
"""
Searches for vmrun.
:returns: path to vmrun
"""
# look for vmrun
vmrun_path = self.config.get_section_config("VMware").get("vmrun_path")
if not vmrun_path:
if sys.platform.startswith("win"):
vmrun_path = shutil.which("vmrun")
if vmrun_path is None:
# look for vmrun.exe using the VMware Workstation directory listed in the registry
vmrun_path = self._find_vmrun_registry(r"SOFTWARE\Wow6432Node\VMware, Inc.\VMware Workstation")
if vmrun_path is None:
# look for vmrun.exe using the VIX directory listed in the registry
vmrun_path = self._find_vmrun_registry(r"SOFTWARE\Wow6432Node\VMware, Inc.\VMware VIX")
elif sys.platform.startswith("darwin"):
vmrun_path = "/Applications/VMware Fusion.app/Contents/Library/vmrun"
else:
vmrun_path = shutil.which("vmrun")
if not vmrun_path:
raise VMwareError("Could not find vmrun")
if not os.path.isfile(vmrun_path):
raise VMwareError("vmrun {} is not accessible".format(vmrun_path))
if not os.access(vmrun_path, os.X_OK):
raise VMwareError("vmrun is not executable")
if os.path.basename(vmrun_path) not in ["vmrun", "vmrun.exe"]:
raise VMwareError("Invalid vmrun executable name {}".format(os.path.basename(vmrun_path)))
self._vmrun_path = vmrun_path
return vmrun_path
@staticmethod
def _find_vmware_version_registry(regkey):
import winreg
version = None
try:
# default path not used, let's look in the registry
hkey = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, regkey)
version, _ = winreg.QueryValueEx(hkey, "ProductVersion")
winreg.CloseKey(hkey)
except OSError:
pass
if version is not None:
match = re.search("([0-9]+)\.", version)
if match:
version = match.group(1)
return version
@asyncio.coroutine
def check_vmware_version(self):
"""
Check VMware version
"""
if sys.platform.startswith("win"):
# look for vmrun.exe using the directory listed in the registry
ws_version = self._find_vmware_version_registry(r"SOFTWARE\Wow6432Node\VMware, Inc.\VMware Workstation")
if ws_version is None:
player_version = self._find_vmware_version_registry(r"SOFTWARE\Wow6432Node\VMware, Inc.\VMware Player")
if player_version:
log.debug("VMware Player version {} detected".format(player_version))
if int(player_version) < 6:
raise VMwareError("Using VMware Player requires version 6 or above")
else:
log.warning("Could not find VMware version")
else:
log.debug("VMware Workstation version {} detected".format(ws_version))
if int(ws_version) < 10:
raise VMwareError("Using VMware Workstation requires version 10 or above")
return
else:
if sys.platform.startswith("darwin"):
if not os.path.isdir("/Applications/VMware Fusion.app"):
raise VMwareError("VMware Fusion is not installed in the standard location /Applications/VMware Fusion.app")
return # FIXME: no version checking on Mac OS X but we support all versions of fusion
vmware_path = VMware._get_linux_vmware_binary()
if vmware_path is None:
raise VMwareError("VMware is not installed (vmware or vmplayer executable could not be found in $PATH)")
try:
output = yield from subprocess_check_output(vmware_path, "-v")
match = re.search("VMware Workstation ([0-9]+)\.", output)
version = None
if match:
version = match.group(1)
log.debug("VMware Workstation version {} detected".format(version))
if int(version) < 10:
raise VMwareError("Using VMware Workstation requires version 10 or above")
match = re.search("VMware Player ([0-9]+)\.", output)
if match:
version = match.group(1)
log.debug("VMware Player version {} detected".format(version))
if int(version) < 6:
raise VMwareError("Using VMware Player requires version 6 or above")
if version is None:
log.warning("Could not find VMware version. Output of VMware: {}".format(output))
raise VMwareError("Could not find VMware version. Output of VMware: {}".format(output))
except (OSError, subprocess.SubprocessError) as e:
log.error("Error while looking for the VMware version: {}".format(e))
raise VMwareError("Error while looking for the VMware version: {}".format(e))
@staticmethod
def _get_vmnet_interfaces_registry():
import winreg
vmnet_interfaces = []
regkey = r"SOFTWARE\Wow6432Node\VMware, Inc.\VMnetLib\VMnetConfig"
try:
hkey = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, regkey)
for index in range(winreg.QueryInfoKey(hkey)[0]):
vmnet = winreg.EnumKey(hkey, index)
hkeyvmnet = winreg.OpenKey(hkey, vmnet)
if winreg.QueryInfoKey(hkeyvmnet)[1]:
# the vmnet has not been configure if the key has no values
vmnet = vmnet.replace("vm", "VM")
if vmnet not in ("VMnet1", "VMnet8"):
vmnet_interfaces.append(vmnet)
winreg.CloseKey(hkeyvmnet)
winreg.CloseKey(hkey)
except OSError as e:
raise VMwareError("Could not read registry key {}: {}".format(regkey, e))
return vmnet_interfaces
@staticmethod
def _get_vmnet_interfaces():
if sys.platform.startswith("win"):
return VMware._get_vmnet_interfaces_registry()
elif sys.platform.startswith("darwin"):
vmware_networking_file = "/Library/Preferences/VMware Fusion/networking"
else:
# location on Linux
vmware_networking_file = "/etc/vmware/networking"
vmnet_interfaces = []
try:
with open(vmware_networking_file, "r", encoding="utf-8") as f:
for line in f.read().splitlines():
match = re.search("VNET_([0-9]+)_VIRTUAL_ADAPTER", line)
if match:
vmnet = "vmnet{}".format(match.group(1))
if vmnet not in ("vmnet1", "vmnet8"):
vmnet_interfaces.append(vmnet)
except OSError as e:
raise VMwareError("Cannot open {}: {}".format(vmware_networking_file, e))
return vmnet_interfaces
@staticmethod
def _get_vmnet_interfaces_ubridge():
vmnet_interfaces = []
for interface in interfaces():
if sys.platform.startswith("win"):
if "netcard" in interface:
windows_name = interface["netcard"]
else:
windows_name = interface["name"]
match = re.search("(VMnet[0-9]+)", windows_name)
if match:
vmnet = match.group(1)
if vmnet not in ("VMnet1", "VMnet8"):
vmnet_interfaces.append(vmnet)
elif interface["name"].startswith("vmnet"):
vmnet = interface["name"]
if vmnet not in ("vmnet1", "vmnet8"):
vmnet_interfaces.append(interface["name"])
return vmnet_interfaces
def is_managed_vmnet(self, vmnet):
self._vmnet_start_range = self.config.get_section_config("VMware").getint("vmnet_start_range", self._vmnet_start_range)
self._vmnet_end_range = self.config.get_section_config("VMware").getint("vmnet_end_range", self._vmnet_end_range)
match = re.search("vmnet([0-9]+)$", vmnet, re.IGNORECASE)
if match:
vmnet_number = match.group(1)
if self._vmnet_start_range <= int(vmnet_number) <= self._vmnet_end_range:
return True
return False
def allocate_vmnet(self):
if not self._vmnets:
raise VMwareError("No VMnet interface available between vmnet{} and vmnet{}. Go to preferences VMware / Network / Configure to add more interfaces.".format(self._vmnet_start_range, self._vmnet_end_range))
return self._vmnets.pop(0)
def refresh_vmnet_list(self, ubridge=True):
if ubridge:
# VMnet host adapters must be present when uBridge is used
vmnet_interfaces = self._get_vmnet_interfaces_ubridge()
else:
vmnet_interfaces = self._get_vmnet_interfaces()
# remove vmnets already in use
for vm in self._vms.values():
for used_vmnet in vm.vmnets:
if used_vmnet in vmnet_interfaces:
log.debug("{} is already in use".format(used_vmnet))
vmnet_interfaces.remove(used_vmnet)
# remove vmnets that are not managed
for vmnet in vmnet_interfaces.copy():
if vmnet in vmnet_interfaces and self.is_managed_vmnet(vmnet) is False:
vmnet_interfaces.remove(vmnet)
self._vmnets = vmnet_interfaces
def create_nio(self, executable, nio_settings):
if nio_settings["type"] == "nio_vmnet":
return NIOVMNET(nio_settings["vmnet"])
else:
return super().create_nio(None, nio_settings)
@property
def host_type(self):
"""
Returns the VMware host type.
player = VMware player
ws = VMware Workstation
fusion = VMware Fusion
:returns: host type (string)
"""
if sys.platform.startswith("darwin"):
host_type = "fusion"
else:
host_type = self.config.get_section_config("VMware").get("host_type", "ws")
return host_type
@asyncio.coroutine
def execute(self, subcommand, args, timeout=120, host_type=None):
with (yield from self._execute_lock):
vmrun_path = self.vmrun_path
if not vmrun_path:
vmrun_path = self.find_vmrun()
if host_type is None:
host_type = self.host_type
command = [vmrun_path, "-T", host_type, subcommand]
command.extend(args)
command_string = " ".join(command)
log.info("Executing vmrun with command: {}".format(command_string))
try:
process = yield from asyncio.create_subprocess_exec(*command, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE)
except (OSError, subprocess.SubprocessError) as e:
raise VMwareError("Could not execute vmrun: {}".format(e))
try:
stdout_data, _ = yield from asyncio.wait_for(process.communicate(), timeout=timeout)
except asyncio.TimeoutError:
raise VMwareError("vmrun has timed out after {} seconds!".format(timeout))
if process.returncode:
# vmrun print errors on stdout
vmrun_error = stdout_data.decode("utf-8", errors="ignore")
raise VMwareError("vmrun has returned an error: {}".format(vmrun_error))
return stdout_data.decode("utf-8", errors="ignore").splitlines()
@asyncio.coroutine
def check_vmrun_version(self):
with (yield from self._execute_lock):
vmrun_path = self.vmrun_path
if not vmrun_path:
vmrun_path = self.find_vmrun()
try:
output = yield from subprocess_check_output(vmrun_path)
match = re.search("vmrun version ([0-9\.]+)", output)
version = None
if match:
version = match.group(1)
log.debug("VMware vmrun version {} detected".format(version))
if parse_version(version) < parse_version("1.13"):
# VMware VIX library version must be at least >= 1.13
raise VMwareError("VMware vmrun executable version must be >= version 1.13")
if version is None:
log.warning("Could not find VMware vmrun version. Output: {}".format(output))
raise VMwareError("Could not find VMware vmrun version. Output: {}".format(output))
except (OSError, subprocess.SubprocessError) as e:
log.error("Error while looking for the VMware vmrun version: {}".format(e))
raise VMwareError("Error while looking for the VMware vmrun version: {}".format(e))
@asyncio.coroutine
def remove_from_vmware_inventory(self, vmx_path):
"""
Removes a linked clone from the VMware inventory file.
:param vmx_path: path of the linked clone VMX file
"""
with (yield from self._vmware_inventory_lock):
inventory_path = self.get_vmware_inventory_path()
if os.path.exists(inventory_path):
try:
inventory_pairs = self.parse_vmware_file(inventory_path)
except OSError as e:
log.warning('Could not read VMware inventory file "{}": {}'.format(inventory_path, e))
return
vmlist_entry = None
for name, value in inventory_pairs.items():
if value == vmx_path:
vmlist_entry = name.split(".", 1)[0]
break
if vmlist_entry is not None:
for name in inventory_pairs.copy().keys():
if name.startswith(vmlist_entry):
del inventory_pairs[name]
try:
self.write_vmware_file(inventory_path, inventory_pairs)
except OSError as e:
raise VMwareError('Could not write VMware inventory file "{}": {}'.format(inventory_path, e))
@staticmethod
def parse_vmware_file(path):
"""
Parses a VMware file (VMX, preferences or inventory).
:param path: path to the VMware file
:returns: dict
"""
pairs = OrderedDict()
encoding = "utf-8"
# get the first line to read the .encoding value
with open(path, "rb") as f:
line = f.readline().decode(encoding, errors="ignore")
if line.startswith("#!"):
# skip the shebang
line = f.readline().decode(encoding, errors="ignore")
try:
key, value = line.split('=', 1)
if key.strip().lower() == ".encoding":
file_encoding = value.strip('" ')
try:
codecs.lookup(file_encoding)
encoding = file_encoding
except LookupError:
log.warning("Invalid file encoding detected in '{}': {}".format(path, file_encoding))
except ValueError:
log.warning("Couldn't find file encoding in {}, using {}...".format(path, encoding))
# read the file with the correct encoding
with open(path, encoding=encoding, errors="ignore") as f:
for line in f.read().splitlines():
try:
key, value = line.split('=', 1)
pairs[key.strip().lower()] = value.strip('" ')
except ValueError:
continue
return pairs
@staticmethod
def write_vmware_file(path, pairs):
"""
Write a VMware file (excepting VMX file).
:param path: path to the VMware file
:param pairs: settings to write
"""
encoding = "utf-8"
if ".encoding" in pairs:
file_encoding = pairs[".encoding"]
try:
codecs.lookup(file_encoding)
encoding = file_encoding
except LookupError:
log.warning("Invalid file encoding detected in '{}': {}".format(path, file_encoding))
with open(path, "w", encoding=encoding, errors="ignore") as f:
for key, value in pairs.items():
entry = '{} = "{}"\n'.format(key, value)
f.write(entry)
@staticmethod
def write_vmx_file(path, pairs):
"""
Write a VMware VMX file.
:param path: path to the VMX file
:param pairs: settings to write
"""
encoding = "utf-8"
if ".encoding" in pairs:
file_encoding = pairs[".encoding"]
try:
codecs.lookup(file_encoding)
encoding = file_encoding
except LookupError:
log.warning("Invalid file encoding detected in '{}': {}".format(path, file_encoding))
with open(path, "w", encoding=encoding, errors="ignore") as f:
if sys.platform.startswith("linux"):
# write the shebang on the first line on Linux
vmware_path = VMware._get_linux_vmware_binary()
if vmware_path:
f.write("#!{}\n".format(vmware_path))
for key, value in pairs.items():
entry = '{} = "{}"\n'.format(key, value)
f.write(entry)
def _get_vms_from_inventory(self, inventory_path):
"""
Searches for VMs by parsing a VMware inventory file.
:param inventory_path: path to the inventory file
:returns: list of VMs
"""
vm_entries = {}
vms = []
try:
log.debug('Reading VMware inventory file "{}"'.format(inventory_path))
pairs = self.parse_vmware_file(inventory_path)
for key, value in pairs.items():
if key.startswith("vmlist"):
try:
vm_entry, variable_name = key.split('.', 1)
except ValueError:
continue
if vm_entry not in vm_entries:
vm_entries[vm_entry] = {}
vm_entries[vm_entry][variable_name.strip()] = value
except OSError as e:
log.warning("Could not read VMware inventory file {}: {}".format(inventory_path, e))
for vm_settings in vm_entries.values():
if "displayname" in vm_settings and "config" in vm_settings:
log.debug('Found VM named "{}" with VMX file "{}"'.format(vm_settings["displayname"], vm_settings["config"]))
vms.append({"vmname": vm_settings["displayname"], "vmx_path": vm_settings["config"]})
return vms
def _get_vms_from_directory(self, directory):
"""
Searches for VMs in a given directory.
:param directory: path to the directory
:returns: list of VMs
"""
vms = []
for path, _, filenames in os.walk(directory):
for filename in filenames:
if os.path.splitext(filename)[1] == ".vmx":
vmx_path = os.path.join(path, filename)
log.debug('Reading VMware VMX file "{}"'.format(vmx_path))
try:
pairs = self.parse_vmware_file(vmx_path)
if "displayname" in pairs:
log.debug('Found VM named "{}"'.format(pairs["displayname"]))
vms.append({"vmname": pairs["displayname"], "vmx_path": vmx_path})
except OSError as e:
log.warning('Could not read VMware VMX file "{}": {}'.format(vmx_path, e))
continue
return vms
@staticmethod
def get_vmware_inventory_path():
"""
Returns VMware inventory file path.
:returns: path to the inventory file
"""
if sys.platform.startswith("win"):
return os.path.expandvars(r"%APPDATA%\Vmware\Inventory.vmls")
elif sys.platform.startswith("darwin"):
return os.path.expanduser("~/Library/Application Support/VMware Fusion/vmInventory")
else:
return os.path.expanduser("~/.vmware/inventory.vmls")
@staticmethod
def get_vmware_preferences_path():
"""
Returns VMware preferences file path.
:returns: path to the preferences file
"""
if sys.platform.startswith("win"):
return os.path.expandvars(r"%APPDATA%\VMware\preferences.ini")
elif sys.platform.startswith("darwin"):
return os.path.expanduser("~/Library/Preferences/VMware Fusion/preferences")
else:
return os.path.expanduser("~/.vmware/preferences")
@staticmethod
def get_vmware_default_vm_path():
"""
Returns VMware default VM directory path.
:returns: path to the default VM directory
"""
if sys.platform.startswith("win"):
import ctypes
path = ctypes.create_unicode_buffer(ctypes.wintypes.MAX_PATH)
ctypes.windll.shell32.SHGetFolderPathW(None, 5, None, 0, path)
documents_folder = path.value
windows_type = sys.getwindowsversion().product_type
if windows_type == 2 or windows_type == 3:
return '{}\My Virtual Machines'.format(documents_folder)
else:
return '{}\Virtual Machines'.format(documents_folder)
elif sys.platform.startswith("darwin"):
return os.path.expanduser("~/Documents/Virtual Machines.localized")
else:
return os.path.expanduser("~/vmware")
@asyncio.coroutine
def list_vms(self):
"""
Gets VMware VM list.
"""
# check for the right VMware version
yield from self.check_vmware_version()
inventory_path = self.get_vmware_inventory_path()
if os.path.exists(inventory_path) and self.host_type == "ws":
# inventory may exist for VMware player if VMware workstation has been previously installed
return self._get_vms_from_inventory(inventory_path)
else:
# VMware player has no inventory file, let's search the default location for VMs
vmware_preferences_path = self.get_vmware_preferences_path()
default_vm_path = self.get_vmware_default_vm_path()
pairs = {}
if os.path.exists(vmware_preferences_path):
# the default vm path may be present in VMware preferences file.
try:
pairs = self.parse_vmware_file(vmware_preferences_path)
except OSError as e:
log.warning('Could not read VMware preferences file "{}": {}'.format(vmware_preferences_path, e))
if "prefvmx.defaultvmpath" in pairs:
default_vm_path = pairs["prefvmx.defaultvmpath"]
if not os.path.isdir(default_vm_path):
raise VMwareError('Could not find the default VM directory: "{}"'.format(default_vm_path))
vms = self._get_vms_from_directory(default_vm_path)
# looks for VMX paths in the preferences file in case not all VMs are in the default directory
for key, value in pairs.items():
m = re.match(r'pref.mruVM(\d+)\.filename', key)
if m:
display_name = "pref.mruVM{}.displayName".format(m.group(1))
if display_name in pairs:
found = False
for vm in vms:
if vm["vmname"] == display_name:
found = True
if found is False:
vms.append({"vmname": pairs[display_name], "vmx_path": value})
return vms
@staticmethod
def _get_linux_vmware_binary():
"""
Return the path of the vmware binary on Linux or None
"""
path = shutil.which("vmware")
if path is None:
path = shutil.which("vmplayer")
return path
if __name__ == '__main__':
loop = asyncio.get_event_loop()
vmware = VMware.instance()
print("=> Check version")
loop.run_until_complete(asyncio.async(vmware.check_vmware_version()))