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mirror of https://github.com/GNS3/gns3-server synced 2024-11-25 01:38:08 +00:00
gns3-server/gns3server/modules/virtualbox/virtualbox_vm.py

987 lines
39 KiB
Python

# -*- coding: utf-8 -*-
#
# Copyright (C) 2014 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/>.
"""
VirtualBox VM instance.
"""
import sys
import os
import shutil
import tempfile
import re
import time
import socket
import subprocess
from .pipe_proxy import PipeProxy
from .virtualbox_error import VirtualBoxError
from .adapters.ethernet_adapter import EthernetAdapter
from ..attic import find_unused_port
if sys.platform.startswith('win'):
import msvcrt
import win32file
import logging
log = logging.getLogger(__name__)
class VirtualBoxVM(object):
"""
VirtualBox VM implementation.
:param vboxwrapper client: VboxWrapperClient instance
:param vboxmanager: VirtualBox manager from the VirtualBox API
:param name: name of this VirtualBox VM
:param vmname: name of this VirtualBox VM in VirtualBox itself
:param working_dir: path to a working directory
:param host: host/address to bind for console and UDP connections
:param vbox_id: VirtalBox VM instance ID
:param console: TCP console port
:param console_start_port_range: TCP console port range start
:param console_end_port_range: TCP console port range end
"""
_instances = []
_allocated_console_ports = []
def __init__(self,
vboxwrapper,
vboxmanager,
name,
vmname,
working_dir,
host="127.0.0.1",
vbox_id=None,
console=None,
console_start_port_range=4512,
console_end_port_range=5000):
if not vbox_id:
self._id = 0
for identifier in range(1, 1024):
if identifier not in self._instances:
self._id = identifier
self._instances.append(self._id)
break
if self._id == 0:
raise VirtualBoxError("Maximum number of VirtualBox VM instances reached")
else:
if vbox_id in self._instances:
raise VirtualBoxError("VirtualBox identifier {} is already used by another VirtualBox VM instance".format(vbox_id))
self._id = vbox_id
self._instances.append(self._id)
self._name = name
self._working_dir = None
self._host = host
self._command = []
self._vboxwrapper = vboxwrapper
self._started = False
self._console_start_port_range = console_start_port_range
self._console_end_port_range = console_end_port_range
# Telnet to pipe mini-server
self._serial_pipe_thread = None
self._serial_pipe = None
# VirtualBox API variables
self._machine = None
self._session = None
self._vboxmanager = vboxmanager
self._maximum_adapters = 0
# VirtualBox settings
self._console = console
self._ethernet_adapters = []
self._headless = False
self._vmname = vmname
self._adapter_type = "Automatic"
working_dir_path = os.path.join(working_dir, "vbox", "vm-{}".format(self._id))
if vbox_id and not os.path.isdir(working_dir_path):
raise VirtualBoxError("Working directory {} doesn't exist".format(working_dir_path))
# create the device own working directory
self.working_dir = working_dir_path
if not self._console:
# allocate a console port
try:
self._console = find_unused_port(self._console_start_port_range,
self._console_end_port_range,
self._host,
ignore_ports=self._allocated_console_ports)
except Exception as e:
raise VirtualBoxError(e)
if self._console in self._allocated_console_ports:
raise VirtualBoxError("Console port {} is already used by another VirtualBox VM".format(console))
self._allocated_console_ports.append(self._console)
if self._vboxwrapper:
self._vboxwrapper.send('vbox create vbox "{}"'.format(self._name))
self._vboxwrapper.send('vbox setattr "{}" image "{}"'.format(self._name, vmname))
self._vboxwrapper.send('vbox setattr "{}" console {}'.format(self._name, self._console))
self._vboxwrapper.send('vbox setattr "{}" console_support True'.format(self._name))
self._vboxwrapper.send('vbox setattr "{}" console_telnet_server True'.format(self._name))
else:
try:
self._machine = self._vboxmanager.vbox.findMachine(self._vmname)
except Exception as e:
raise VirtualBoxError("VirtualBox error: {}".format(e))
# The maximum support network cards depends on the Chipset (PIIX3 or ICH9)
self._maximum_adapters = self._vboxmanager.vbox.systemProperties.getMaxNetworkAdapters(self._machine.chipsetType)
self.adapters = 2
log.info("VirtualBox VM {name} [id={id}] has been created".format(name=self._name,
id=self._id))
def defaults(self):
"""
Returns all the default attribute values for this VirtualBox VM.
:returns: default values (dictionary)
"""
vbox_defaults = {"name": self._name,
"vmname": self._vmname,
"adapters": len(self._ethernet_adapters),
"adapter_type": "Automatic",
"console": self._console,
"headless": self._headless}
return vbox_defaults
@property
def id(self):
"""
Returns the unique ID for this VirtualBox VM.
:returns: id (integer)
"""
return self._id
@classmethod
def reset(cls):
"""
Resets allocated instance list.
"""
cls._instances.clear()
cls._allocated_console_ports.clear()
@property
def name(self):
"""
Returns the name of this VirtualBox VM.
:returns: name
"""
return self._name
@name.setter
def name(self, new_name):
"""
Sets the name of this VirtualBox VM.
:param new_name: name
"""
log.info("VirtualBox VM {name} [id={id}]: renamed to {new_name}".format(name=self._name,
id=self._id,
new_name=new_name))
if self._vboxwrapper:
self._vboxwrapper.send('vbox rename "{}" "{}"'.format(self._name, new_name))
self._name = new_name
@property
def working_dir(self):
"""
Returns current working directory
:returns: path to the working directory
"""
return self._working_dir
@working_dir.setter
def working_dir(self, working_dir):
"""
Sets the working directory this VirtualBox VM.
:param working_dir: path to the working directory
"""
try:
os.makedirs(working_dir)
except FileExistsError:
pass
except OSError as e:
raise VirtualBoxError("Could not create working directory {}: {}".format(working_dir, e))
self._working_dir = working_dir
log.info("VirtualBox VM {name} [id={id}]: working directory changed to {wd}".format(name=self._name,
id=self._id,
wd=self._working_dir))
@property
def console(self):
"""
Returns the TCP console port.
:returns: console port (integer)
"""
return self._console
@console.setter
def console(self, console):
"""
Sets the TCP console port.
:param console: console port (integer)
"""
if console in self._allocated_console_ports:
raise VirtualBoxError("Console port {} is already used by another VirtualBox VM".format(console))
self._allocated_console_ports.remove(self._console)
self._console = console
self._allocated_console_ports.append(self._console)
if self._vboxwrapper:
self._vboxwrapper.send('vbox setattr "{}" console {}'.format(self._name, self._console))
log.info("VirtualBox VM {name} [id={id}]: console port set to {port}".format(name=self._name,
id=self._id,
port=console))
def delete(self):
"""
Deletes this VirtualBox VM.
"""
self.stop()
if self._id in self._instances:
self._instances.remove(self._id)
if self.console and self.console in self._allocated_console_ports:
self._allocated_console_ports.remove(self.console)
if self._vboxwrapper:
self._vboxwrapper.send('vbox delete "{}"'.format(self._name))
log.info("VirtualBox VM {name} [id={id}] has been deleted".format(name=self._name,
id=self._id))
def clean_delete(self):
"""
Deletes this VirtualBox VM & all files.
"""
self.stop()
if self._id in self._instances:
self._instances.remove(self._id)
if self.console:
self._allocated_console_ports.remove(self.console)
if self._vboxwrapper:
self._vboxwrapper.send('vbox delete "{}"'.format(self._name))
try:
shutil.rmtree(self._working_dir)
except OSError as e:
log.error("could not delete VirtualBox VM {name} [id={id}]: {error}".format(name=self._name,
id=self._id,
error=e))
return
log.info("VirtualBox VM {name} [id={id}] has been deleted (including associated files)".format(name=self._name,
id=self._id))
@property
def headless(self):
"""
Returns either the VM will start in headless mode
:returns: boolean
"""
return self._headless
@headless.setter
def headless(self, headless):
"""
Sets either the VM will start in headless mode
:param headless: boolean
"""
if headless:
if self._vboxwrapper:
self._vboxwrapper.send('vbox setattr "{}" headless_mode True'.format(self._name))
log.info("VirtualBox VM {name} [id={id}] has enabled the headless mode".format(name=self._name, id=self._id))
else:
if self._vboxwrapper:
self._vboxwrapper.send('vbox setattr "{}" headless_mode False'.format(self._name))
log.info("VirtualBox VM {name} [id={id}] has disabled the headless mode".format(name=self._name, id=self._id))
self._headless = headless
@property
def vmname(self):
"""
Returns the VM name associated with this VirtualBox VM.
:returns: VirtualBox VM name
"""
return self._vmname
@vmname.setter
def vmname(self, vmname):
"""
Sets the VM name associated with this VirtualBox VM.
:param vmname: VirtualBox VM name
"""
if self._vboxwrapper:
self._vboxwrapper.send('vbox setattr "{}" image "{}"'.format(self._name, vmname))
else:
try:
self._machine = self._vboxmanager.vbox.findMachine(vmname)
except Exception as e:
raise VirtualBoxError("VirtualBox error: {}".format(e))
# The maximum support network cards depends on the Chipset (PIIX3 or ICH9)
self._maximum_adapters = self._vboxmanager.vbox.systemProperties.getMaxNetworkAdapters(self._machine.chipsetType)
log.info("VirtualBox VM {name} [id={id}] has set the VM name to {vmname}".format(name=self._name, id=self._id, vmname=vmname))
self._vmname = vmname
@property
def adapters(self):
"""
Returns the number of Ethernet adapters for this VirtualBox VM instance.
:returns: number of adapters
"""
return len(self._ethernet_adapters)
@adapters.setter
def adapters(self, adapters):
"""
Sets the number of Ethernet adapters for this VirtualBox VM instance.
:param adapters: number of adapters
"""
self._ethernet_adapters.clear()
for _ in range(0, adapters):
self._ethernet_adapters.append(EthernetAdapter())
if self._vboxwrapper:
self._vboxwrapper.send('vbox setattr "{}" nics {}'.format(self._name, len(self._ethernet_adapters)))
log.info("VirtualBox VM {name} [id={id}]: number of Ethernet adapters changed to {adapters}".format(name=self._name,
id=self._id,
adapters=len(self._ethernet_adapters)))
@property
def adapter_type(self):
"""
Returns the adapter type for this VirtualBox VM instance.
:returns: adapter type (string)
"""
return self._adapter_type
@adapter_type.setter
def adapter_type(self, adapter_type):
"""
Sets the adapter type for this VirtualBox VM instance.
:param adapter_type: adapter type (string)
"""
self._adapter_type = adapter_type
if self._vboxwrapper:
self._vboxwrapper.send('vbox setattr "{}" netcard "{}"'.format(self._name, adapter_type))
log.info("VirtualBox VM {name} [id={id}]: adapter type changed to {adapter_type}".format(name=self._name,
id=self._id,
adapter_type=adapter_type))
def start(self):
"""
Starts this VirtualBox VM.
"""
if self._vboxwrapper:
status = int(self._vboxwrapper.send('vbox status "{}"'.format(self._name))[0])
if status == 6: # paused
self.resume()
return
self._vboxwrapper.send('vbox start "{}"'.format(self._name))
else:
if self._machine.state == self._vboxmanager.constants.MachineState_Paused:
self.resume()
return
self._get_session()
self._set_network_options()
self._set_console_options()
progress = self._launch_vm_process()
log.info("VM is starting with {}% completed".format(progress.percent))
if progress.percent != 100:
# This will happen if you attempt to start VirtualBox with unloaded "vboxdrv" module.
# or have too little RAM or damaged vHDD, or connected to non-existent network.
# We must unlock machine, otherwise it locks the VirtualBox Manager GUI. (on Linux hosts)
self._unlock_machine()
raise VirtualBoxError("Unable to start the VM (failed at {}%)".format(progress.percent))
try:
self._machine.setGuestPropertyValue("NameInGNS3", self._name)
except Exception:
pass
# starts the Telnet to pipe thread
pipe_name = self._get_pipe_name()
if sys.platform.startswith('win'):
try:
self._serial_pipe = open(pipe_name, "a+b")
except OSError as e:
raise VirtualBoxError("Could not open the pipe {}: {}".format(pipe_name, e))
self._serial_pipe_thread = PipeProxy(self._vmname, msvcrt.get_osfhandle(self._serial_pipe.fileno()), self._host, self._console)
#self._serial_pipe_thread.setDaemon(True)
self._serial_pipe_thread.start()
else:
try:
self._serial_pipe = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
self._serial_pipe.connect(pipe_name)
except OSError as e:
raise VirtualBoxError("Could not connect to the pipe {}: {}".format(pipe_name, e))
self._serial_pipe_thread = PipeProxy(self._vmname, self._serial_pipe, self._host, self._console)
#self._serial_pipe_thread.setDaemon(True)
self._serial_pipe_thread.start()
def stop(self):
"""
Stops this VirtualBox VM.
"""
if self._vboxwrapper:
self._vboxwrapper.send('vbox stop "{}"'.format(self._name))
else:
if self._serial_pipe_thread:
self._serial_pipe_thread.stop()
self._serial_pipe_thread.join(1)
if self._serial_pipe_thread.isAlive():
log.warn("Serial pire thread is still alive!")
self._serial_pipe_thread = None
if self._serial_pipe:
if sys.platform.startswith('win'):
win32file.CloseHandle(msvcrt.get_osfhandle(self._serial_pipe.fileno()))
else:
self._serial_pipe.close()
self._serial_pipe = None
if self._machine.state >= self._vboxmanager.constants.MachineState_FirstOnline and \
self._machine.state <= self._vboxmanager.constants.MachineState_LastOnline:
try:
if sys.platform.startswith('win') and "VBOX_INSTALL_PATH" in os.environ:
# work around VirtualBox bug #9239
vboxmanage_path = os.path.join(os.environ["VBOX_INSTALL_PATH"], "VBoxManage.exe")
command = '"{}" controlvm "{}" poweroff'.format(vboxmanage_path, self._vmname)
subprocess.call(command, timeout=3)
else:
progress = self._session.console.powerDown()
# wait for VM to actually go down
progress.waitForCompletion(3000)
log.info("VM is stopping with {}% completed".format(self.vmname, progress.percent))
self._lock_machine()
for adapter_id in range(0, len(self._ethernet_adapters)):
self._disable_adapter(adapter_id, disable=True)
self._session.machine.saveSettings()
self._unlock_machine()
except Exception as e:
# Do not crash "vboxwrapper", if stopping VM fails.
# But return True anyway, so VM state in GNS3 can become "stopped"
# This can happen, if user manually kills VBox VM.
log.warn("could not stop VM for {}: {}".format(self._vmname, e))
return
def suspend(self):
"""
Suspends this VirtualBox VM.
"""
if self._vboxwrapper:
self._vboxwrapper.send('vbox suspend "{}"'.format(self._name))
else:
try:
self._session.console.pause()
except Exception as e:
raise VirtualBoxError("VirtualBox error: {}".format(e))
def reload(self):
"""
Reloads this VirtualBox VM.
"""
if self._vboxwrapper:
self._vboxwrapper.send('vbox reset "{}"'.format(self._name))
else:
try:
progress = self._session.console.reset()
progress.waitForCompletion(-1)
except Exception as e:
raise VirtualBoxError("VirtualBox error: {}".format(e))
def resume(self):
"""
Resumes this VirtualBox VM.
"""
if self._vboxwrapper:
self._vboxwrapper.send('vbox resume "{}"'.format(self._name))
else:
try:
self._session.console.resume()
except Exception as e:
raise VirtualBoxError("VirtualBox error: {}".format(e))
def port_add_nio_binding(self, adapter_id, nio):
"""
Adds a port NIO binding.
:param adapter_id: adapter ID
:param nio: NIO instance to add to the slot/port
"""
try:
adapter = self._ethernet_adapters[adapter_id]
except IndexError:
raise VirtualBoxError("Adapter {adapter_id} doesn't exist on VirtualBox VM {name}".format(name=self._name,
adapter_id=adapter_id))
if self._vboxwrapper:
self._vboxwrapper.send('vbox create_udp "{}" {} {} {} {}'.format(self._name,
adapter_id,
nio.lport,
nio.rhost,
nio.rport))
else:
self._create_udp(adapter_id, nio.lport, nio.rhost, nio.rport)
adapter.add_nio(0, nio)
log.info("VirtualBox VM {name} [id={id}]: {nio} added to adapter {adapter_id}".format(name=self._name,
id=self._id,
nio=nio,
adapter_id=adapter_id))
def port_remove_nio_binding(self, adapter_id):
"""
Removes a port NIO binding.
:param adapter_id: adapter ID
:returns: NIO instance
"""
try:
adapter = self._ethernet_adapters[adapter_id]
except IndexError:
raise VirtualBoxError("Adapter {adapter_id} doesn't exist on VirtualBox VM {name}".format(name=self._name,
adapter_id=adapter_id))
if self._vboxwrapper:
self._vboxwrapper.send('vbox delete_udp "{}" {}'.format(self._name,
adapter_id))
else:
self._delete_udp(adapter_id)
nio = adapter.get_nio(0)
adapter.remove_nio(0)
log.info("VirtualBox VM {name} [id={id}]: {nio} removed from adapter {adapter_id}".format(name=self._name,
id=self._id,
nio=nio,
adapter_id=adapter_id))
return nio
def start_capture(self, adapter_id, output_file):
"""
Starts a packet capture.
:param adapter_id: adapter ID
:param output_file: PCAP destination file for the capture
"""
try:
adapter = self._ethernet_adapters[adapter_id]
except IndexError:
raise VirtualBoxError("Adapter {adapter_id} doesn't exist on VirtualBox VM {name}".format(name=self._name,
adapter_id=adapter_id))
nio = adapter.get_nio(0)
if nio.capturing:
raise VirtualBoxError("Packet capture is already activated on adapter {adapter_id}".format(adapter_id=adapter_id))
try:
os.makedirs(os.path.dirname(output_file))
except FileExistsError:
pass
except OSError as e:
raise VirtualBoxError("Could not create captures directory {}".format(e))
nio.startPacketCapture(output_file)
if self._vboxwrapper:
self._vboxwrapper.send('vbox create_capture "{}" {} "{}"'.format(self._name,
adapter_id,
output_file))
log.info("VirtualBox VM {name} [id={id}]: starting packet capture on adapter {adapter_id}".format(name=self._name,
id=self._id,
adapter_id=adapter_id))
def stop_capture(self, adapter_id):
"""
Stops a packet capture.
:param adapter_id: adapter ID
"""
try:
adapter = self._ethernet_adapters[adapter_id]
except IndexError:
raise VirtualBoxError("Adapter {adapter_id} doesn't exist on VirtualBox VM {name}".format(name=self._name,
adapter_id=adapter_id))
nio = adapter.get_nio(0)
nio.stopPacketCapture()
if self._vboxwrapper:
self._vboxwrapper.send('vbox delete_capture "{}" {}'.format(self._name,
adapter_id))
log.info("VirtualBox VM {name} [id={id}]: stopping packet capture on adapter {adapter_id}".format(name=self._name,
id=self._id,
adapter_id=adapter_id))
def _get_session(self):
log.debug("getting session for {}".format(self._vmname))
try:
self._session = self._vboxmanager.mgr.getSessionObject(self._vboxmanager.vbox)
except Exception as e:
# fails on heavily loaded hosts...
raise VirtualBoxError("VirtualBox error: {}".format(e))
def _set_network_options(self):
log.debug("setting network options for {}".format(self._vmname))
self._lock_machine()
first_adapter_type = self._vboxmanager.constants.NetworkAdapterType_I82540EM
try:
first_adapter = self._session.machine.getNetworkAdapter(0)
first_adapter_type = first_adapter.adapterType
except Exception as e:
pass
#raise VirtualBoxError("VirtualBox error: {}".format(e))
for adapter_id in range(0, len(self._ethernet_adapters)):
try:
# VirtualBox starts counting from 0
adapter = self._session.machine.getNetworkAdapter(adapter_id)
adapter_type = adapter.adapterType
if self._adapter_type == "PCnet-PCI II (Am79C970A)":
adapter_type = self._vboxmanager.constants.NetworkAdapterType_Am79C970A
if self._adapter_type == "PCNet-FAST III (Am79C973)":
adapter_type = self._vboxmanager.constants.NetworkAdapterType_Am79C973
if self._adapter_type == "Intel PRO/1000 MT Desktop (82540EM)":
adapter_type = self._vboxmanager.constants.NetworkAdapterType_I82540EM
if self._adapter_type == "Intel PRO/1000 T Server (82543GC)":
adapter_type = self._vboxmanager.constants.NetworkAdapterType_I82543GC
if self._adapter_type == "Intel PRO/1000 MT Server (82545EM)":
adapter_type = self._vboxmanager.constants.NetworkAdapterType_I82545EM
if self._adapter_type == "Paravirtualized Network (virtio-net)":
adapter_type = self._vboxmanager.constants.NetworkAdapterType_Virtio
if self._adapter_type == "Automatic": # "Auto-guess, based on first NIC"
adapter_type = first_adapter_type
adapter.adapterType = adapter_type
except Exception as e:
raise VirtualBoxError("VirtualBox error: {}".format(e))
nio = self._ethernet_adapters[adapter_id].get_nio(0)
if nio:
log.debug("setting UDP params on adapter {}".format(adapter_id))
try:
adapter.enabled = True
adapter.cableConnected = True
adapter.traceEnabled = False
# Temporary hack around VBox-UDP patch limitation: inability to use DNS
if nio.rhost == 'localhost':
rhost = '127.0.0.1'
else:
rhost = nio.rhost
adapter.attachmentType = self._vboxmanager.constants.NetworkAttachmentType_Generic
adapter.genericDriver = "UDPTunnel"
adapter.setProperty("sport", str(nio.lport))
adapter.setProperty("dest", rhost)
adapter.setProperty("dport", str(nio.rport))
except Exception as e:
# usually due to COM Error: "The object is not ready"
raise VirtualBoxError("VirtualBox error: {}".format(e))
if nio.capturing:
self._enable_capture(adapter, nio.pcap_output_file)
else:
# shutting down unused adapters...
try:
adapter.enabled = True
adapter.attachmentType = self._vboxmanager.constants.NetworkAttachmentType_Null
adapter.cableConnected = False
except Exception as e:
raise VirtualBoxError("VirtualBox error: {}".format(e))
#for adapter_id in range(len(self._ethernet_adapters), self._maximum_adapters):
# log.debug("disabling remaining adapter {}".format(adapter_id))
# self._disable_adapter(adapter_id)
try:
self._session.machine.saveSettings()
except Exception as e:
raise VirtualBoxError("VirtualBox error: {}".format(e))
self._unlock_machine()
def _disable_adapter(self, adapter_id, disable=True):
log.debug("disabling network adapter for {}".format(self._vmname))
# this command is retried several times, because it fails more often...
retries = 6
last_exception = None
for retry in range(retries):
if retry == (retries - 1):
raise VirtualBoxError("Could not disable network adapter after 4 retries: {}".format(last_exception))
try:
adapter = self._session.machine.getNetworkAdapter(adapter_id)
adapter.traceEnabled = False
adapter.attachmentType = self._vboxmanager.constants.NetworkAttachmentType_Null
if disable:
adapter.enabled = False
break
except Exception as e:
# usually due to COM Error: "The object is not ready"
log.warn("cannot disable network adapter for {}, retrying {}: {}".format(self._vmname, retry + 1, e))
last_exception = e
time.sleep(1)
continue
def _enable_capture(self, adapter, output_file):
log.debug("enabling capture for {}".format(self._vmname))
# this command is retried several times, because it fails more often...
retries = 4
last_exception = None
for retry in range(retries):
if retry == (retries - 1):
raise VirtualBoxError("Could not enable packet capture after 4 retries: {}".format(last_exception))
try:
adapter.traceEnabled = True
adapter.traceFile = output_file
break
except Exception as e:
log.warn("cannot enable packet capture for {}, retrying {}: {}".format(self._vmname, retry + 1, e))
last_exception = e
time.sleep(0.75)
continue
def _create_udp(self, adapter_id, sport, daddr, dport):
if self._machine.state >= self._vboxmanager.constants.MachineState_FirstOnline and \
self._machine.state <= self._vboxmanager.constants.MachineState_LastOnline:
# the machine is being executed
retries = 4
last_exception = None
for retry in range(retries):
if retry == (retries - 1):
raise VirtualBoxError("Could not create an UDP tunnel after 4 retries :{}".format(last_exception))
try:
adapter = self._session.machine.getNetworkAdapter(adapter_id)
adapter.cableConnected = True
adapter.attachmentType = self._vboxmanager.constants.NetworkAttachmentType_Null
self._session.machine.saveSettings()
adapter.attachmentType = self._vboxmanager.constants.NetworkAttachmentType_Generic
adapter.genericDriver = "UDPTunnel"
adapter.setProperty("sport", str(sport))
adapter.setProperty("dest", daddr)
adapter.setProperty("dport", str(dport))
self._session.machine.saveSettings()
break
except Exception as e:
# usually due to COM Error: "The object is not ready"
log.warn("cannot create UDP tunnel for {}: {}".format(self._vmname, e))
last_exception = e
time.sleep(0.75)
continue
def _delete_udp(self, adapter_id):
if self._machine.state >= self._vboxmanager.constants.MachineState_FirstOnline and \
self._machine.state <= self._vboxmanager.constants.MachineState_LastOnline:
# the machine is being executed
retries = 4
last_exception = None
for retry in range(retries):
if retry == (retries - 1):
raise VirtualBoxError("Could not delete an UDP tunnel after 4 retries :{}".format(last_exception))
try:
adapter = self._session.machine.getNetworkAdapter(adapter_id)
adapter.attachmentType = self._vboxmanager.constants.NetworkAttachmentType_Null
adapter.cableConnected = False
self._session.machine.saveSettings()
break
except Exception as e:
# usually due to COM Error: "The object is not ready"
log.debug("cannot delete UDP tunnel for {}: {}".format(self._vmname, e))
last_exception = e
time.sleep(0.75)
continue
def _get_pipe_name(self):
p = re.compile('\s+', re.UNICODE)
pipe_name = p.sub("_", self._vmname)
if sys.platform.startswith('win'):
pipe_name = r"\\.\pipe\VBOX\{}".format(pipe_name)
else:
pipe_name = os.path.join(tempfile.gettempdir(), "pipe_{}".format(pipe_name))
return pipe_name
def _set_console_options(self):
log.info("setting console options for {}".format(self.vmname))
self._lock_machine()
pipe_name = self._get_pipe_name()
try:
serial_port = self._session.machine.getSerialPort(0)
serial_port.enabled = True
serial_port.path = pipe_name
serial_port.hostMode = 1
serial_port.server = True
self._session.machine.saveSettings()
except Exception as e:
raise VirtualBoxError("VirtualBox error: {}".format(e))
self._unlock_machine()
def _launch_vm_process(self):
log.debug("launching VM {}".format(self._vmname))
# this command is retried several times, because it fails more often...
retries = 4
last_exception = None
for retry in range(retries):
if retry == (retries - 1):
raise VirtualBoxError("Could not launch the VM after 4 retries: {}".format(last_exception))
try:
if self._headless:
mode = "headless"
else:
mode = "gui"
log.info("starting {} in {} mode".format(self._vmname, mode))
progress = self._machine.launchVMProcess(self._session, mode, "")
break
except Exception as e:
# This will usually happen if you try to start the same VM twice,
# but may happen on loaded hosts too...
log.warn("cannot launch VM {}, retrying {}: {}".format(self._vmname, retry + 1, e))
last_exception = e
time.sleep(0.6)
continue
try:
progress.waitForCompletion(-1)
except Exception as e:
raise VirtualBoxError("VirtualBox error: {}".format(e))
return progress
def _lock_machine(self):
log.debug("locking machine for {}".format(self._vmname))
# this command is retried several times, because it fails more often...
retries = 4
last_exception = None
for retry in range(retries):
if retry == (retries - 1):
raise VirtualBoxError("Could not lock the machine after 4 retries: {}".format(last_exception))
try:
self._machine.lockMachine(self._session, 1)
break
except Exception as e:
log.warn("cannot lock the machine for {}, retrying {}: {}".format(self._vmname, retry + 1, e))
last_exception = e
time.sleep(1)
continue
def _unlock_machine(self):
log.debug("unlocking machine for {}".format(self._vmname))
# this command is retried several times, because it fails more often...
retries = 4
last_exception = None
for retry in range(retries):
if retry == (retries - 1):
raise VirtualBoxError("Could not unlock the machine after 4 retries: {}".format(last_exception))
try:
self._session.unlockMachine()
break
except Exception as e:
log.warn("cannot unlock the machine for {}, retrying {}: {}".format(self._vmname, retry + 1, e))
time.sleep(1)
last_exception = e
continue