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https://github.com/GNS3/gns3-server
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Packet capture support for VirtualBox.
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parent
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commit
365af02f37
@ -15,10 +15,12 @@
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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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import os
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from ..web.route import Route
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from ..schemas.virtualbox import VBOX_CREATE_SCHEMA
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from ..schemas.virtualbox import VBOX_UPDATE_SCHEMA
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from ..schemas.virtualbox import VBOX_NIO_SCHEMA
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from ..schemas.virtualbox import VBOX_CAPTURE_SCHEMA
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from ..schemas.virtualbox import VBOX_OBJECT_SCHEMA
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from ..modules.virtualbox import VirtualBox
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@ -262,3 +264,45 @@ class VirtualBoxHandler:
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vm = vbox_manager.get_vm(request.match_info["uuid"])
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vm.port_remove_nio_binding(int(request.match_info["port_id"]))
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response.set_status(204)
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@Route.post(
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r"/virtualbox/{uuid}/capture/{port_id:\d+}/start",
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parameters={
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"uuid": "Instance UUID",
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"port_id": "ID of the port to start a packet capture"
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},
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status_codes={
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200: "Capture started",
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400: "Invalid instance UUID",
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404: "Instance doesn't exist"
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},
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description="Start a packet capture on a VirtualBox VM instance",
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input=VBOX_CAPTURE_SCHEMA)
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def start_capture(request, response):
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vbox_manager = VirtualBox.instance()
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vm = vbox_manager.get_vm(request.match_info["uuid"])
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port_id = int(request.match_info["port_id"])
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pcap_file_path = os.path.join(vm.project.capture_working_directory(), request.json["filename"])
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vm.start_capture(port_id, pcap_file_path)
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response.json({"port_id": port_id,
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"pcap_file_path": pcap_file_path})
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@Route.post(
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r"/virtualbox/{uuid}/capture/{port_id:\d+}/stop",
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parameters={
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"uuid": "Instance UUID",
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"port_id": "ID of the port to stop a packet capture"
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},
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status_codes={
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204: "Capture stopped",
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400: "Invalid instance UUID",
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404: "Instance doesn't exist"
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},
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description="Stop a packet capture on a VirtualBox VM instance")
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def start_capture(request, response):
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vbox_manager = VirtualBox.instance()
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vm = vbox_manager.get_vm(request.match_info["uuid"])
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vm.stop_capture(int(request.match_info["port_id"]))
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response.set_status(204)
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@ -30,8 +30,8 @@ from uuid import UUID, uuid4
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from ..config import Config
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from .project_manager import ProjectManager
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from .nios.nio_udp import NIO_UDP
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from .nios.nio_tap import NIO_TAP
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from .nios.nio_udp import NIOUDP
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from .nios.nio_tap import NIOTAP
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class BaseManager:
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@ -237,11 +237,11 @@ class BaseManager:
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sock.connect((rhost, rport))
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except OSError as e:
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raise aiohttp.web.HTTPInternalServerError(text="Could not create an UDP connection to {}:{}: {}".format(rhost, rport, e))
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nio = NIO_UDP(lport, rhost, rport)
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nio = NIOUDP(lport, rhost, rport)
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elif nio_settings["type"] == "nio_tap":
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tap_device = nio_settings["tap_device"]
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if not self._has_privileged_access(executable):
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raise aiohttp.web.HTTPForbidden(text="{} has no privileged access to {}.".format(executable, tap_device))
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nio = NIO_TAP(tap_device)
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nio = NIOTAP(tap_device)
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assert nio is not None
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return nio
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65
gns3server/modules/nios/nio.py
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65
gns3server/modules/nios/nio.py
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@ -0,0 +1,65 @@
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# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2013 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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Base interface for NIOs.
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"""
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class NIO(object):
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"""
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Network Input/Output.
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"""
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def __init__(self):
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self._capturing = False
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self._pcap_output_file = ""
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def startPacketCapture(self, pcap_output_file):
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"""
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:param pcap_output_file: PCAP destination file for the capture
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"""
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self._capturing = True
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self._pcap_output_file = pcap_output_file
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def stopPacketCapture(self):
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self._capturing = False
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self._pcap_output_file = ""
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@property
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def capturing(self):
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"""
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Returns either a capture is configured on this NIO.
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:returns: boolean
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"""
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return self._capturing
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@property
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def pcap_output_file(self):
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"""
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Returns the path to the PCAP output file.
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:returns: path to the PCAP output file
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"""
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return self._pcap_output_file
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@ -19,8 +19,10 @@
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Interface for TAP NIOs (UNIX based OSes only).
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"""
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from .nio import NIO
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class NIO_TAP(object):
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class NIOTAP(NIO):
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"""
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TAP NIO.
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@ -30,6 +32,7 @@ class NIO_TAP(object):
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def __init__(self, tap_device):
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super().__init__()
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self._tap_device = tap_device
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@property
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@ -19,8 +19,10 @@
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Interface for UDP NIOs.
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"""
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from .nio import NIO
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class NIO_UDP(object):
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class NIOUDP(NIO):
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"""
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UDP NIO.
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@ -30,10 +32,9 @@ class NIO_UDP(object):
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:param rport: remote port number
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"""
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_instance_count = 0
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def __init__(self, lport, rhost, rport):
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super().__init__()
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self._lport = lport
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self._rhost = rhost
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self._rport = rport
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@ -122,7 +122,21 @@ class Project:
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try:
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os.makedirs(workdir, exist_ok=True)
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except OSError as e:
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raise aiohttp.web.HTTPInternalServerError(text="Could not create VM working directory: {}".format(e))
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raise aiohttp.web.HTTPInternalServerError(text="Could not create the VM working directory: {}".format(e))
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return workdir
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def capture_working_directory(self):
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"""
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Return a working directory where to store packet capture files.
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:returns: path to the directory
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"""
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workdir = os.path.join(self._path, "captures")
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try:
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os.makedirs(workdir, exist_ok=True)
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except OSError as e:
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raise aiohttp.web.HTTPInternalServerError(text="Could not create the capture working directory: {}".format(e))
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return workdir
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def mark_vm_for_destruction(self, vm):
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@ -23,7 +23,6 @@ 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 json
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import socket
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@ -833,13 +832,7 @@ class VirtualBoxVM(BaseVM):
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if nio.capturing:
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raise VirtualBoxError("Packet capture is already activated on adapter {adapter_id}".format(adapter_id=adapter_id))
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try:
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os.makedirs(os.path.dirname(output_file), exist_ok=True)
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except OSError as e:
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raise VirtualBoxError("Could not create captures directory {}".format(e))
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nio.startPacketCapture(output_file)
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log.info("VirtualBox VM '{name}' [{uuid}]: starting packet capture on adapter {adapter_id}".format(name=self.name,
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uuid=self.uuid,
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adapter_id=adapter_id))
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"required": ["type"]
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}
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VBOX_CAPTURE_SCHEMA = {
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"$schema": "http://json-schema.org/draft-04/schema#",
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"description": "Request validation to start a packet capture on a VirtualBox VM instance port",
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"type": "object",
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"properties": {
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"capture_filename": {
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"description": "Capture file name",
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"type": "string",
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"minLength": 1,
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},
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},
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"additionalProperties": False,
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"required": ["capture_filename"]
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}
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VBOX_OBJECT_SCHEMA = {
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"$schema": "http://json-schema.org/draft-04/schema#",
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"description": "VirtualBox VM instance",
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