mirror of
https://github.com/GNS3/gns3-server
synced 2024-11-15 21:08:55 +00:00
874 lines
32 KiB
Python
874 lines
32 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2014 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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VirtualBox VM instance.
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"""
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import sys
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import shlex
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import re
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import os
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import subprocess
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import tempfile
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import shutil
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import socket
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import time
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from .virtualbox_error import VirtualBoxError
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from .adapters.ethernet_adapter import EthernetAdapter
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from ..attic import find_unused_port
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from .telnet_server import TelnetServer
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if sys.platform.startswith('win'):
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import msvcrt
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import win32file
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import logging
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log = logging.getLogger(__name__)
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class VirtualBoxVM(object):
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"""
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VirtualBox VM implementation.
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:param vboxmanage_path: path to the VBoxManage tool
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:param name: name of this VirtualBox VM
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:param vmname: name of this VirtualBox VM in VirtualBox itself
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:param working_dir: path to a working directory
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:param host: host/address to bind for console and UDP connections
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:param vbox_id: VirtalBox VM instance ID
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:param console: TCP console port
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:param console_start_port_range: TCP console port range start
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:param console_end_port_range: TCP console port range end
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"""
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_instances = []
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_allocated_console_ports = []
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def __init__(self,
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vboxmanage_path,
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name,
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vmname,
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working_dir,
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host="127.0.0.1",
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vbox_id=None,
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console=None,
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console_start_port_range=4512,
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console_end_port_range=5000):
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if not vbox_id:
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self._id = 0
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for identifier in range(1, 1024):
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if identifier not in self._instances:
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self._id = identifier
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self._instances.append(self._id)
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break
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if self._id == 0:
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raise VirtualBoxError("Maximum number of VirtualBox VM instances reached")
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else:
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if vbox_id in self._instances:
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raise VirtualBoxError("VirtualBox identifier {} is already used by another VirtualBox VM instance".format(vbox_id))
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self._id = vbox_id
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self._instances.append(self._id)
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self._name = name
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self._working_dir = None
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self._host = host
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self._command = []
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self._vboxmanage_path = vboxmanage_path
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self._started = False
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self._console_start_port_range = console_start_port_range
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self._console_end_port_range = console_end_port_range
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self._telnet_server_thread = None
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self._serial_pipe = None
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# VirtualBox settings
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self._console = console
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self._ethernet_adapters = []
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self._headless = False
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self._enable_remote_console = True
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self._vmname = vmname
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self._adapter_start_index = 0
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self._adapter_type = "Intel PRO/1000 MT Desktop (82540EM)"
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working_dir_path = os.path.join(working_dir, "vbox", "vm-{}".format(self._id))
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if vbox_id and not os.path.isdir(working_dir_path):
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raise VirtualBoxError("Working directory {} doesn't exist".format(working_dir_path))
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# create the device own working directory
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self.working_dir = working_dir_path
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if not self._console:
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# allocate a console port
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try:
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self._console = find_unused_port(self._console_start_port_range,
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self._console_end_port_range,
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self._host,
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ignore_ports=self._allocated_console_ports)
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except Exception as e:
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raise VirtualBoxError(e)
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if self._console in self._allocated_console_ports:
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raise VirtualBoxError("Console port {} is already used by another VirtualBox VM".format(console))
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self._allocated_console_ports.append(self._console)
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self._maximum_adapters = 8
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self.adapters = 2 # creates 2 adapters by default
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self._system_properties = {}
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properties = self._execute("list", ["systemproperties"])
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for prop in properties:
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try:
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name, value = prop.split(':', 1)
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except ValueError:
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continue
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self._system_properties[name.strip()] = value.strip()
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log.info("VirtualBox VM {name} [id={id}] has been created".format(name=self._name,
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id=self._id))
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def defaults(self):
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"""
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Returns all the default attribute values for this VirtualBox VM.
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:returns: default values (dictionary)
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"""
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vbox_defaults = {"name": self._name,
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"vmname": self._vmname,
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"adapters": self.adapters,
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"adapter_start_index": self._adapter_start_index,
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"adapter_type": "Intel PRO/1000 MT Desktop (82540EM)",
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"console": self._console,
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"enable_remote_console": self._enable_remote_console,
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"headless": self._headless}
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return vbox_defaults
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@property
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def id(self):
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"""
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Returns the unique ID for this VirtualBox VM.
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:returns: id (integer)
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"""
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return self._id
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@classmethod
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def reset(cls):
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"""
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Resets allocated instance list.
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"""
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cls._instances.clear()
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cls._allocated_console_ports.clear()
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@property
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def name(self):
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"""
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Returns the name of this VirtualBox VM.
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:returns: name
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"""
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return self._name
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@name.setter
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def name(self, new_name):
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"""
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Sets the name of this VirtualBox VM.
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:param new_name: name
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"""
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log.info("VirtualBox VM {name} [id={id}]: renamed to {new_name}".format(name=self._name,
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id=self._id,
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new_name=new_name))
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self._name = new_name
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@property
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def working_dir(self):
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"""
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Returns current working directory
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:returns: path to the working directory
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"""
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return self._working_dir
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@working_dir.setter
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def working_dir(self, working_dir):
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"""
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Sets the working directory this VirtualBox VM.
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:param working_dir: path to the working directory
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"""
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try:
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os.makedirs(working_dir)
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except FileExistsError:
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pass
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except OSError as e:
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raise VirtualBoxError("Could not create working directory {}: {}".format(working_dir, e))
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self._working_dir = working_dir
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log.info("VirtualBox VM {name} [id={id}]: working directory changed to {wd}".format(name=self._name,
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id=self._id,
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wd=self._working_dir))
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@property
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def console(self):
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"""
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Returns the TCP console port.
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:returns: console port (integer)
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"""
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return self._console
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@console.setter
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def console(self, console):
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"""
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Sets the TCP console port.
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:param console: console port (integer)
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"""
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if console in self._allocated_console_ports:
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raise VirtualBoxError("Console port {} is already used by another VirtualBox VM".format(console))
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self._allocated_console_ports.remove(self._console)
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self._console = console
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self._allocated_console_ports.append(self._console)
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log.info("VirtualBox VM {name} [id={id}]: console port set to {port}".format(name=self._name,
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id=self._id,
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port=console))
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def delete(self):
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"""
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Deletes this VirtualBox VM.
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"""
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self.stop()
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if self._id in self._instances:
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self._instances.remove(self._id)
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if self.console and self.console in self._allocated_console_ports:
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self._allocated_console_ports.remove(self.console)
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log.info("VirtualBox VM {name} [id={id}] has been deleted".format(name=self._name,
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id=self._id))
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def clean_delete(self):
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"""
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Deletes this VirtualBox VM & all files.
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"""
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self.stop()
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if self._id in self._instances:
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self._instances.remove(self._id)
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if self.console:
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self._allocated_console_ports.remove(self.console)
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try:
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shutil.rmtree(self._working_dir)
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except OSError as e:
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log.error("could not delete VirtualBox VM {name} [id={id}]: {error}".format(name=self._name,
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id=self._id,
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error=e))
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return
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log.info("VirtualBox VM {name} [id={id}] has been deleted (including associated files)".format(name=self._name,
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id=self._id))
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@property
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def headless(self):
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"""
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Returns either the VM will start in headless mode
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:returns: boolean
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"""
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return self._headless
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@headless.setter
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def headless(self, headless):
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"""
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Sets either the VM will start in headless mode
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:param headless: boolean
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"""
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if headless:
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log.info("VirtualBox VM {name} [id={id}] has enabled the headless mode".format(name=self._name, id=self._id))
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else:
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log.info("VirtualBox VM {name} [id={id}] has disabled the headless mode".format(name=self._name, id=self._id))
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self._headless = headless
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@property
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def enable_remote_console(self):
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"""
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Returns either the remote console is enabled or not
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:returns: boolean
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"""
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return self._enable_remote_console
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@enable_remote_console.setter
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def enable_remote_console(self, enable_remote_console):
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"""
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Sets either the console is enabled or not
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:param enable_remote_console: boolean
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"""
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if enable_remote_console:
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log.info("VirtualBox VM {name} [id={id}] has enabled the console".format(name=self._name, id=self._id))
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else:
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log.info("VirtualBox VM {name} [id={id}] has disabled the console".format(name=self._name, id=self._id))
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self._enable_remote_console = enable_remote_console
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@property
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def vmname(self):
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"""
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Returns the VM name associated with this VirtualBox VM.
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:returns: VirtualBox VM name
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"""
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return self._vmname
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@vmname.setter
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def vmname(self, vmname):
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"""
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Sets the VM name associated with this VirtualBox VM.
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:param vmname: VirtualBox VM name
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"""
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log.info("VirtualBox VM {name} [id={id}] has set the VM name to {vmname}".format(name=self._name, id=self._id, vmname=vmname))
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self._vmname = vmname
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@property
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def adapters(self):
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"""
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Returns the number of Ethernet adapters for this VirtualBox VM instance.
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:returns: number of adapters
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"""
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return len(self._ethernet_adapters)
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@adapters.setter
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def adapters(self, adapters):
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"""
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Sets the number of Ethernet adapters for this VirtualBox VM instance.
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:param adapters: number of adapters
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"""
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# check for the maximum adapters supported by the VM
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self._maximum_adapters = self._get_maximum_supported_adapters()
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if len(self._ethernet_adapters) > self._maximum_adapters:
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raise VirtualBoxError("Number of adapters above the maximum supported of {}".format(self._maximum_adapters))
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self._ethernet_adapters.clear()
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for adapter_id in range(0, self._adapter_start_index + adapters):
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if adapter_id < self._adapter_start_index:
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self._ethernet_adapters.append(None)
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continue
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self._ethernet_adapters.append(EthernetAdapter())
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log.info("VirtualBox VM {name} [id={id}]: number of Ethernet adapters changed to {adapters}".format(name=self._name,
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id=self._id,
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adapters=adapters))
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@property
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def adapter_start_index(self):
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"""
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Returns the adapter start index for this VirtualBox VM instance.
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:returns: index
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"""
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return self._adapter_start_index
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@adapter_start_index.setter
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def adapter_start_index(self, adapter_start_index):
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"""
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Sets the adapter start index for this VirtualBox VM instance.
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:param adapter_start_index: index
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"""
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self._adapter_start_index = adapter_start_index
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self.adapters = self.adapters # this forces to recreate the adapter list with the correct index
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log.info("VirtualBox VM {name} [id={id}]: adapter start index changed to {index}".format(name=self._name,
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id=self._id,
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index=adapter_start_index))
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@property
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def adapter_type(self):
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"""
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Returns the adapter type for this VirtualBox VM instance.
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:returns: adapter type (string)
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"""
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return self._adapter_type
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@adapter_type.setter
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def adapter_type(self, adapter_type):
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"""
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Sets the adapter type for this VirtualBox VM instance.
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:param adapter_type: adapter type (string)
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"""
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self._adapter_type = adapter_type
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log.info("VirtualBox VM {name} [id={id}]: adapter type changed to {adapter_type}".format(name=self._name,
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id=self._id,
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adapter_type=adapter_type))
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def _execute(self, subcommand, args, timeout=30):
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"""
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Executes a command with VBoxManage.
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:param subcommand: vboxmanage subcommand (e.g. modifyvm, controlvm etc.)
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:param args: arguments for the subcommand.
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:param timeout: how long to wait for vboxmanage
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:returns: result (list)
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"""
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command = [self._vboxmanage_path, "--nologo", subcommand]
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command.extend(args)
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try:
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result = subprocess.check_output(command, stderr=subprocess.STDOUT, universal_newlines=True, timeout=timeout)
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except subprocess.CalledProcessError as e:
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if e.output:
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# only the first line of the output is useful
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virtualbox_error = e.output.splitlines()[0]
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raise VirtualBoxError("{}".format(virtualbox_error))
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else:
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raise VirtualBoxError("{}".format(e))
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except subprocess.TimeoutExpired:
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raise VirtualBoxError("VBoxManage has timed out")
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return result.splitlines()
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def _get_vm_info(self):
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"""
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Returns this VM info.
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:returns: dict of info
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"""
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vm_info = {}
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results = self._execute("showvminfo", [self._vmname])
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for info in results:
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try:
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name, value = info.split(':', 1)
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except ValueError:
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continue
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vm_info[name.strip()] = value.strip()
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return vm_info
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def _get_vm_state(self):
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"""
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Returns this VM state (e.g. running, paused etc.)
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:returns: state (string)
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"""
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vm_info = self._get_vm_info()
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state = vm_info["State"].rsplit('(', 1)[0]
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return state.lower().strip()
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def _get_maximum_supported_adapters(self):
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"""
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Returns the maximum adapters supported by this VM.
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:returns: maximum number of supported adapters (int)
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"""
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# check the maximum number of adapters supported by the VM
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vm_info = self._get_vm_info()
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chipset = vm_info["Chipset"]
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maximum_adapters = 8
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if chipset == "ich9":
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maximum_adapters = int(self._system_properties["Maximum ICH9 Network Adapter count"])
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return maximum_adapters
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def _get_pipe_name(self):
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"""
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Returns the pipe name to create a serial connection.
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:returns: pipe path (string)
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"""
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p = re.compile('\s+', re.UNICODE)
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pipe_name = p.sub("_", self._vmname)
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if sys.platform.startswith('win'):
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pipe_name = r"\\.\pipe\VBOX\{}".format(pipe_name)
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else:
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pipe_name = os.path.join(tempfile.gettempdir(), "pipe_{}".format(pipe_name))
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return pipe_name
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def _set_serial_console(self):
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"""
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Configures the first serial port to allow a serial console connection.
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"""
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# activate the first serial port
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self._modify_vm("--uart1 0x3F8 4")
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# set server mode with a pipe on the first serial port
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pipe_name = self._get_pipe_name()
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args = [self._vmname, "--uartmode1", "server", pipe_name]
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self._execute("modifyvm", args)
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def _modify_vm(self, params):
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"""
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Change setting in this VM when not running.
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:param params: params to use with sub-command modifyvm
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"""
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args = shlex.split(params)
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self._execute("modifyvm", [self._vmname] + args)
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def _control_vm(self, params):
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"""
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Change setting in this VM when running.
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:param params: params to use with sub-command controlvm
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|
:returns: result of the command.
|
|
"""
|
|
|
|
args = shlex.split(params)
|
|
return self._execute("controlvm", [self._vmname] + args)
|
|
|
|
def _get_nic_attachements(self, maximum_adapters):
|
|
"""
|
|
Returns NIC attachements.
|
|
|
|
:param maximum_adapters: maximum number of supported adapters
|
|
:returns: list of adapters with their Attachment setting (NAT, bridged etc.)
|
|
"""
|
|
|
|
nics = []
|
|
vm_info = self._get_vm_info()
|
|
for adapter_id in range(0, maximum_adapters):
|
|
entry = "NIC {}".format(adapter_id + 1)
|
|
if entry in vm_info:
|
|
value = vm_info[entry]
|
|
match = re.search("Attachment: (\w+)[\s,]+", value)
|
|
if match:
|
|
nics.append(match.group(1))
|
|
else:
|
|
nics.append(None)
|
|
return nics
|
|
|
|
def _set_network_options(self):
|
|
"""
|
|
Configures network options.
|
|
"""
|
|
|
|
nic_attachements = self._get_nic_attachements(self._maximum_adapters)
|
|
for adapter_id in range(0, len(self._ethernet_adapters)):
|
|
if self._ethernet_adapters[adapter_id] is None:
|
|
# force enable to avoid any discrepancy in the interface numbering inside the VM
|
|
# e.g. Ethernet2 in GNS3 becoming eth0 inside the VM when using a start index of 2.
|
|
attachement = nic_attachements[adapter_id]
|
|
if attachement:
|
|
self._modify_vm("--nic{} {}".format(adapter_id + 1, attachement.lower()))
|
|
continue
|
|
|
|
vbox_adapter_type = "82540EM"
|
|
if self._adapter_type == "PCnet-PCI II (Am79C970A)":
|
|
vbox_adapter_type = "Am79C970A"
|
|
if self._adapter_type == "PCNet-FAST III (Am79C973)":
|
|
vbox_adapter_type = "Am79C973"
|
|
if self._adapter_type == "Intel PRO/1000 MT Desktop (82540EM)":
|
|
vbox_adapter_type = "82540EM"
|
|
if self._adapter_type == "Intel PRO/1000 T Server (82543GC)":
|
|
vbox_adapter_type = "82543GC"
|
|
if self._adapter_type == "Intel PRO/1000 MT Server (82545EM)":
|
|
vbox_adapter_type = "82545EM"
|
|
if self._adapter_type == "Paravirtualized Network (virtio-net)":
|
|
vbox_adapter_type = "virtio"
|
|
|
|
args = [self._vmname, "--nictype{}".format(adapter_id + 1), vbox_adapter_type]
|
|
self._execute("modifyvm", args)
|
|
|
|
self._modify_vm("--nictrace{} off".format(adapter_id + 1))
|
|
nio = self._ethernet_adapters[adapter_id].get_nio(0)
|
|
if nio:
|
|
log.debug("setting UDP params on adapter {}".format(adapter_id))
|
|
self._modify_vm("--nic{} generic".format(adapter_id + 1))
|
|
self._modify_vm("--nicgenericdrv{} UDPTunnel".format(adapter_id + 1))
|
|
self._modify_vm("--nicproperty{} sport={}".format(adapter_id + 1, nio.lport))
|
|
self._modify_vm("--nicproperty{} dest={}".format(adapter_id + 1, nio.rhost))
|
|
self._modify_vm("--nicproperty{} dport={}".format(adapter_id + 1, nio.rport))
|
|
self._modify_vm("--cableconnected{} on".format(adapter_id + 1))
|
|
|
|
if nio.capturing:
|
|
self._modify_vm("--nictrace{} on".format(adapter_id + 1))
|
|
self._modify_vm("--nictracefile{} {}".format(adapter_id + 1, nio.pcap_output_file))
|
|
else:
|
|
# shutting down unused adapters...
|
|
self._modify_vm("--cableconnected{} off".format(adapter_id + 1))
|
|
self._modify_vm("--nic{} null".format(adapter_id + 1))
|
|
|
|
for adapter_id in range(len(self._ethernet_adapters), self._maximum_adapters):
|
|
log.debug("disabling remaining adapter {}".format(adapter_id))
|
|
self._modify_vm("--cableconnected{} off".format(adapter_id + 1))
|
|
self._modify_vm("--nic{} null".format(adapter_id + 1))
|
|
|
|
def start(self):
|
|
"""
|
|
Starts this VirtualBox VM.
|
|
"""
|
|
|
|
# resume the VM if it is paused
|
|
vm_state = self._get_vm_state()
|
|
if vm_state == "paused":
|
|
self.resume()
|
|
return
|
|
|
|
# VM must be powered off and in saved state to start it
|
|
if vm_state != "powered off" and vm_state != "saved":
|
|
raise VirtualBoxError("VirtualBox VM not powered off or saved")
|
|
|
|
self._set_network_options()
|
|
self._set_serial_console()
|
|
|
|
args = [self._vmname]
|
|
if self._headless:
|
|
args.extend(["--type", "headless"])
|
|
result = self._execute("startvm", args)
|
|
log.debug("started VirtualBox VM: {}".format(result))
|
|
|
|
# add a guest property to let the VM know about the GNS3 name
|
|
self._execute("guestproperty", ["set", self._vmname, "NameInGNS3", self._name])
|
|
|
|
if self._enable_remote_console:
|
|
# 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._telnet_server_thread = TelnetServer(self._vmname, msvcrt.get_osfhandle(self._serial_pipe.fileno()), self._host, self._console)
|
|
self._telnet_server_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._telnet_server_thread = TelnetServer(self._vmname, self._serial_pipe, self._host, self._console)
|
|
self._telnet_server_thread.start()
|
|
|
|
def stop(self):
|
|
"""
|
|
Stops this VirtualBox VM.
|
|
"""
|
|
|
|
if self._telnet_server_thread:
|
|
self._telnet_server_thread.stop()
|
|
self._telnet_server_thread.join(timeout=3)
|
|
if self._telnet_server_thread.isAlive():
|
|
log.warn("Serial pire thread is still alive!")
|
|
self._telnet_server_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
|
|
|
|
vm_state = self._get_vm_state()
|
|
if vm_state == "running" or vm_state == "paused" or vm_state == "stuck":
|
|
# power off the VM
|
|
result = self._control_vm("poweroff")
|
|
log.debug("VirtualBox VM has been stopped: {}".format(result))
|
|
|
|
time.sleep(0.5) # give some time for VirtualBox to unlock the VM
|
|
# deactivate the first serial port
|
|
try:
|
|
self._modify_vm("--uart1 off")
|
|
except VirtualBoxError as e:
|
|
log.warn("Could not deactivate the first serial port: {}".format(e))
|
|
|
|
for adapter_id in range(0, len(self._ethernet_adapters)):
|
|
if self._ethernet_adapters[adapter_id] is None:
|
|
continue
|
|
self._modify_vm("--nictrace{} off".format(adapter_id + 1))
|
|
self._modify_vm("--cableconnected{} off".format(adapter_id + 1))
|
|
self._modify_vm("--nic{} null".format(adapter_id + 1))
|
|
|
|
def suspend(self):
|
|
"""
|
|
Suspends this VirtualBox VM.
|
|
"""
|
|
|
|
vm_state = self._get_vm_state()
|
|
if vm_state == "running":
|
|
result = self._control_vm("pause")
|
|
log.debug("VirtualBox VM has been suspended: {}".format(result))
|
|
else:
|
|
log.info("VirtualBox VM is not running to be suspended, current state is {}".format(vm_state))
|
|
|
|
def resume(self):
|
|
"""
|
|
Resumes this VirtualBox VM.
|
|
"""
|
|
|
|
result = self._control_vm("resume")
|
|
log.debug("VirtualBox VM has been resumed: {}".format(result))
|
|
|
|
def reload(self):
|
|
"""
|
|
Reloads this VirtualBox VM.
|
|
"""
|
|
|
|
result = self._control_vm("reset")
|
|
log.debug("VirtualBox VM has been reset: {}".format(result))
|
|
|
|
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))
|
|
|
|
vm_state = self._get_vm_state()
|
|
if vm_state == "running":
|
|
# dynamically configure an UDP tunnel on the VirtualBox adapter
|
|
self._control_vm("nic{} generic UDPTunnel".format(adapter_id + 1))
|
|
self._control_vm("nicproperty{} sport={}".format(adapter_id + 1, nio.lport))
|
|
self._control_vm("nicproperty{} dest={}".format(adapter_id + 1, nio.rhost))
|
|
self._control_vm("nicproperty{} dport={}".format(adapter_id + 1, nio.rport))
|
|
self._control_vm("setlinkstate{} on".format(adapter_id + 1))
|
|
|
|
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))
|
|
|
|
vm_state = self._get_vm_state()
|
|
if vm_state == "running":
|
|
# dynamically disable the VirtualBox adapter
|
|
self._control_vm("setlinkstate{} off".format(adapter_id + 1))
|
|
self._control_vm("nic{} null".format(adapter_id + 1))
|
|
|
|
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)
|
|
|
|
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()
|
|
|
|
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))
|