mirror of
https://github.com/GNS3/gns3-server
synced 2024-12-03 21:58:13 +00:00
522 lines
20 KiB
Python
522 lines
20 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2015 GNS3 Technologies Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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VMware player/workstation server module.
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"""
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import os
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import sys
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import re
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import shutil
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import asyncio
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import subprocess
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import logging
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import codecs
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from collections import OrderedDict
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from gns3server.utils.interfaces import interfaces
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from gns3server.utils.asyncio import subprocess_check_output
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log = logging.getLogger(__name__)
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from ..base_manager import BaseManager
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from .vmware_vm import VMwareVM
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from .vmware_error import VMwareError
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class VMware(BaseManager):
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_VM_CLASS = VMwareVM
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def __init__(self):
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super().__init__()
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self._execute_lock = asyncio.Lock()
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self._vmrun_path = None
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self._vmnets = []
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self._vmnet_start_range = 2
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if sys.platform.startswith("win"):
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self._vmnet_end_range = 19
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else:
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self._vmnet_end_range = 255
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@property
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def vmrun_path(self):
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"""
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Returns the path vmrun utility.
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:returns: path
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"""
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return self._vmrun_path
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@staticmethod
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def _find_vmrun_registry(regkey):
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import winreg
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try:
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# default path not used, let's look in the registry
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hkey = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, regkey)
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ws_install_path, _ = winreg.QueryValueEx(hkey, "InstallPath")
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vmrun_path = os.path.join(ws_install_path, "vmrun.exe")
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winreg.CloseKey(hkey)
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if os.path.exists(vmrun_path):
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return vmrun_path
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except OSError:
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pass
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return None
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def find_vmrun(self):
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"""
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Searches for vmrun.
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:returns: path to vmrun
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"""
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# look for vmrun
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vmrun_path = self.config.get_section_config("VMware").get("vmrun_path")
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if not vmrun_path:
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if sys.platform.startswith("win"):
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vmrun_path = shutil.which("vmrun")
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if vmrun_path is None:
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# look for vmrun.exe in default VMware Workstation directory
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vmrun_ws = os.path.expandvars(r"%PROGRAMFILES(X86)%\VMware\VMware Workstation\vmrun.exe")
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if os.path.exists(vmrun_ws):
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vmrun_path = vmrun_ws
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else:
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# look for vmrun.exe using the directory listed in the registry
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vmrun_path = self._find_vmrun_registry(r"SOFTWARE\Wow6432Node\VMware, Inc.\VMware Workstation")
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if vmrun_path is None:
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# look for vmrun.exe in default VMware VIX directory
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vmrun_vix = os.path.expandvars(r"%PROGRAMFILES(X86)%\VMware\VMware VIX\vmrun.exe")
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if os.path.exists(vmrun_vix):
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vmrun_path = vmrun_vix
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else:
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# look for vmrun.exe using the directory listed in the registry
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vmrun_path = self._find_vmrun_registry(r"SOFTWARE\Wow6432Node\VMware, Inc.\VMware VIX")
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elif sys.platform.startswith("darwin"):
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vmrun_path = "/Applications/VMware Fusion.app/Contents/Library/vmrun"
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else:
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vmrun_path = shutil.which("vmrun")
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if not vmrun_path:
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raise VMwareError("Could not find vmrun")
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if not os.path.isfile(vmrun_path):
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raise VMwareError("vmrun {} is not accessible".format(vmrun_path))
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if not os.access(vmrun_path, os.X_OK):
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raise VMwareError("vmrun is not executable")
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if os.path.basename(vmrun_path) not in ["vmrun", "vmrun.exe"]:
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raise VMwareError("Invalid vmrun executable name {}".format(os.path.basename(vmrun_path)))
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self._vmrun_path = vmrun_path
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return vmrun_path
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@staticmethod
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def _find_vmware_version_registry(regkey):
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import winreg
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version = None
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try:
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# default path not used, let's look in the registry
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hkey = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, regkey)
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version, _ = winreg.QueryValueEx(hkey, "ProductVersion")
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winreg.CloseKey(hkey)
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except OSError:
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pass
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if version is not None:
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match = re.search("([0-9]+)\.", version)
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if match:
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version = match.group(1)
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return version
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@asyncio.coroutine
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def check_vmware_version(self):
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"""
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Check VMware version
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"""
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if sys.platform.startswith("win"):
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# look for vmrun.exe using the directory listed in the registry
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ws_version = self._find_vmware_version_registry(r"SOFTWARE\Wow6432Node\VMware, Inc.\VMware Workstation")
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if ws_version is None:
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player_version = self._find_vmware_version_registry(r"SOFTWARE\Wow6432Node\VMware, Inc.\VMware Player")
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if player_version:
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log.debug("VMware Player version {} detected".format(player_version))
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if int(player_version) < 6:
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raise VMwareError("Using VMware Player requires version 6 or above")
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else:
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log.warning("Could not find VMware version")
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else:
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log.debug("VMware Workstation version {} detected".format(ws_version))
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if int(ws_version) < 10:
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raise VMwareError("Using VMware Workstation requires version 10 or above")
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return
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else:
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if sys.platform.startswith("darwin"):
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return # FIXME: no version checking on Mac OS X
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else:
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vmware_path = shutil.which("vmware")
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if vmware_path is None:
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raise VMwareError("VMware is not installed (vmware executable could not be found in $PATH)")
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try:
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output = yield from subprocess_check_output(vmware_path, "-v")
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match = re.search("VMware Workstation ([0-9]+)\.", output)
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version = None
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if match:
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version = match.group(1)
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log.debug("VMware Workstation version {} detected".format(version))
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if int(version) < 10:
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raise VMwareError("Using VMware Workstation requires version 10 or above")
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match = re.search("VMware Player ([0-9]+)\.", output)
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if match:
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version = match.group(1)
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log.debug("VMware Player version {} detected".format(version))
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if int(version) < 6:
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raise VMwareError("Using VMware Player requires version 6 or above")
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if version is None:
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log.warning("Could not find VMware version")
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except (OSError, subprocess.SubprocessError) as e:
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log.error("Error while looking for the VMware version: {}".format(e))
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@staticmethod
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def get_vmnet_interfaces():
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vmnet_interfaces = []
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for interface in interfaces():
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if sys.platform.startswith("win"):
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if "netcard" in interface:
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windows_name = interface["netcard"]
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else:
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windows_name = interface["name"]
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match = re.search("(VMnet[0-9]+)", windows_name)
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if match:
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vmnet = match.group(1)
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if vmnet not in ("VMnet1", "VMnet8"):
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vmnet_interfaces.append(vmnet)
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elif interface["name"].startswith("vmnet"):
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vmnet = interface["name"]
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if vmnet not in ("vmnet1", "vmnet8"):
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vmnet_interfaces.append(interface["name"])
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return vmnet_interfaces
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def is_managed_vmnet(self, vmnet):
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self._vmnet_start_range = self.config.get_section_config("VMware").getint("vmnet_start_range", self._vmnet_start_range)
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self._vmnet_end_range = self.config.get_section_config("VMware").getint("vmnet_end_range", self._vmnet_end_range)
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match = re.search("vmnet([0-9]+)$", vmnet, re.IGNORECASE)
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if match:
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vmnet_number = match.group(1)
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if self._vmnet_start_range <= int(vmnet_number) <= self._vmnet_end_range:
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return True
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return False
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def allocate_vmnet(self):
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if not self._vmnets:
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raise VMwareError("No more VMnet interfaces available")
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return self._vmnets.pop(0)
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def refresh_vmnet_list(self):
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vmnet_interfaces = self.get_vmnet_interfaces()
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# remove vmnets already in use
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for vm in self._vms.values():
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for used_vmnet in vm.vmnets:
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if used_vmnet in vmnet_interfaces:
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log.debug("{} is already in use".format(used_vmnet))
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vmnet_interfaces.remove(used_vmnet)
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# remove vmnets that are not managed
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for vmnet in vmnet_interfaces.copy():
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if vmnet in vmnet_interfaces and self.is_managed_vmnet(vmnet) is False:
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vmnet_interfaces.remove(vmnet)
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self._vmnets = vmnet_interfaces
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@property
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def host_type(self):
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"""
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Returns the VMware host type.
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player = VMware player
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ws = VMware Workstation
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fusion = VMware Fusion
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:returns: host type (string)
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"""
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if sys.platform.startswith("darwin"):
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host_type = "fusion"
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else:
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host_type = self.config.get_section_config("VMware").get("host_type", "ws")
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return host_type
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@asyncio.coroutine
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def execute(self, subcommand, args, timeout=60, host_type=None):
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with (yield from self._execute_lock):
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vmrun_path = self.vmrun_path
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if not vmrun_path:
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vmrun_path = self.find_vmrun()
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if host_type is None:
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host_type = self.host_type
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command = [vmrun_path, "-T", host_type, subcommand]
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command.extend(args)
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command_string = " ".join(command)
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log.info("Executing vmrun with command: {}".format(command_string))
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try:
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process = yield from asyncio.create_subprocess_exec(*command, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE)
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except (OSError, subprocess.SubprocessError) as e:
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raise VMwareError("Could not execute vmrun: {}".format(e))
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try:
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stdout_data, _ = yield from asyncio.wait_for(process.communicate(), timeout=timeout)
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except asyncio.TimeoutError:
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raise VMwareError("vmrun has timed out after {} seconds!".format(timeout))
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if process.returncode:
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# vmrun print errors on stdout
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vmrun_error = stdout_data.decode("utf-8", errors="ignore")
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raise VMwareError("vmrun has returned an error: {}".format(vmrun_error))
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return stdout_data.decode("utf-8", errors="ignore").splitlines()
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@staticmethod
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def parse_vmware_file(path):
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"""
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Parses a VMware file (VMX, preferences or inventory).
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:param path: path to the VMware file
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:returns: dict
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"""
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pairs = OrderedDict()
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encoding = "utf-8"
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# get the first line to read the .encoding value
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with open(path, "rb") as f:
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line = f.readline().decode(encoding, errors="ignore")
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if line.startswith("#!"):
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# skip the shebang
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line = f.readline().decode(encoding, errors="ignore")
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try:
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key, value = line.split('=', 1)
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if key.strip().lower() == ".encoding":
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file_encoding = value.strip('" ')
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try:
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codecs.lookup(file_encoding)
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encoding = file_encoding
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except LookupError:
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log.warning("Invalid file encoding detected in '{}': {}".format(path, file_encoding))
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except ValueError:
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log.warning("Couldn't find file encoding in {}, using {}...".format(path, encoding))
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# read the file with the correct encoding
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with open(path, encoding=encoding, errors="ignore") as f:
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for line in f.read().splitlines():
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try:
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key, value = line.split('=', 1)
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pairs[key.strip().lower()] = value.strip('" ')
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except ValueError:
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continue
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return pairs
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@staticmethod
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def write_vmware_file(path, pairs):
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"""
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Write a VMware file (excepting VMX file).
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:param path: path to the VMware file
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:param pairs: settings to write
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"""
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encoding = "utf-8"
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if ".encoding" in pairs:
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file_encoding = pairs[".encoding"]
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try:
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codecs.lookup(file_encoding)
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encoding = file_encoding
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except LookupError:
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log.warning("Invalid file encoding detected in '{}': {}".format(path, file_encoding))
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with open(path, "w", encoding=encoding, errors="ignore") as f:
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for key, value in pairs.items():
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entry = '{} = "{}"\n'.format(key, value)
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f.write(entry)
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@staticmethod
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def write_vmx_file(path, pairs):
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"""
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Write a VMware VMX file.
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:param path: path to the VMX file
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:param pairs: settings to write
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"""
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encoding = "utf-8"
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if ".encoding" in pairs:
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file_encoding = pairs[".encoding"]
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try:
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codecs.lookup(file_encoding)
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encoding = file_encoding
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except LookupError:
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log.warning("Invalid file encoding detected in '{}': {}".format(path, file_encoding))
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with open(path, "w", encoding=encoding, errors="ignore") as f:
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if sys.platform.startswith("linux"):
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# write the shebang on the first line on Linux
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vmware_path = shutil.which("vmware")
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if vmware_path:
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f.write("#!{}\n".format(vmware_path))
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for key, value in pairs.items():
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entry = '{} = "{}"\n'.format(key, value)
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f.write(entry)
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def _get_vms_from_inventory(self, inventory_path):
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"""
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Searches for VMs by parsing a VMware inventory file.
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:param inventory_path: path to the inventory file
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:returns: list of VMs
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"""
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vm_entries = {}
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vms = []
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try:
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log.debug('Reading VMware inventory file "{}"'.format(inventory_path))
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pairs = self.parse_vmware_file(inventory_path)
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for key, value in pairs.items():
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if key.startswith("vmlist"):
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try:
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vm_entry, variable_name = key.split('.', 1)
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except ValueError:
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continue
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if vm_entry not in vm_entries:
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vm_entries[vm_entry] = {}
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vm_entries[vm_entry][variable_name.strip()] = value
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except OSError as e:
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log.warning("Could not read VMware inventory file {}: {}".format(inventory_path, e))
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for vm_settings in vm_entries.values():
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if "displayname" in vm_settings and "config" in vm_settings:
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log.debug('Found VM named "{}" with VMX file "{}"'.format(vm_settings["displayname"], vm_settings["config"]))
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vms.append({"vmname": vm_settings["displayname"], "vmx_path": vm_settings["config"]})
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return vms
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def _get_vms_from_directory(self, directory):
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"""
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Searches for VMs in a given directory.
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:param directory: path to the directory
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:returns: list of VMs
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"""
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vms = []
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for path, _, filenames in os.walk(directory):
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for filename in filenames:
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if os.path.splitext(filename)[1] == ".vmx":
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vmx_path = os.path.join(path, filename)
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log.debug('Reading VMware VMX file "{}"'.format(vmx_path))
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try:
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pairs = self.parse_vmware_file(vmx_path)
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if "displayname" in pairs:
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log.debug('Found VM named "{}"'.format(pairs["displayname"]))
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vms.append({"vmname": pairs["displayname"], "vmx_path": vmx_path})
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except OSError as e:
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log.warning('Could not read VMware VMX file "{}": {}'.format(vmx_path, e))
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continue
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return vms
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@staticmethod
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def get_vmware_inventory_path():
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"""
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Returns VMware inventory file path.
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:returns: path to the inventory file
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"""
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if sys.platform.startswith("win"):
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return os.path.expandvars(r"%APPDATA%\Vmware\Inventory.vmls")
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elif sys.platform.startswith("darwin"):
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return os.path.expanduser("~/Library/Application\ Support/VMware Fusion/vmInventory")
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else:
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return os.path.expanduser("~/.vmware/inventory.vmls")
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@staticmethod
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def get_vmware_preferences_path():
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"""
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Returns VMware preferences file path.
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:returns: path to the preferences file
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"""
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if sys.platform.startswith("win"):
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return os.path.expandvars(r"%APPDATA%\VMware\preferences.ini")
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elif sys.platform.startswith("darwin"):
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return os.path.expanduser("~/Library/Preferences/VMware Fusion/preferences")
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else:
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return os.path.expanduser("~/.vmware/preferences")
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@staticmethod
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def get_vmware_default_vm_path():
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"""
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Returns VMware default VM directory path.
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:returns: path to the default VM directory
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"""
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if sys.platform.startswith("win"):
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return os.path.expandvars(r"%USERPROFILE%\Documents\Virtual Machines")
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elif sys.platform.startswith("darwin"):
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return os.path.expanduser("~/Documents/Virtual Machines.localized")
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else:
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return os.path.expanduser("~/vmware")
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@asyncio.coroutine
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def list_vms(self):
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"""
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Gets VMware VM list.
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"""
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# check for the right VMware version
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yield from self.check_vmware_version()
|
|
|
|
inventory_path = self.get_vmware_inventory_path()
|
|
if os.path.exists(inventory_path):
|
|
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()
|
|
|
|
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)
|
|
if "prefvmx.defaultvmpath" in pairs:
|
|
default_vm_path = pairs["prefvmx.defaultvmpath"]
|
|
except OSError as e:
|
|
log.warning('Could not read VMware preferences file "{}": {}'.format(vmware_preferences_path, e))
|
|
|
|
if not os.path.isdir(default_vm_path):
|
|
raise VMwareError('Could not find the default VM directory: "{}"'.format(default_vm_path))
|
|
return self._get_vms_from_directory(default_vm_path)
|