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gns3-server/gns3server/utils/interfaces.py
2015-04-23 00:03:44 -06:00

106 lines
3.9 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/>.
import sys
import aiohttp
import logging
log = logging.getLogger(__name__)
def _get_windows_interfaces_from_registry():
import winreg
interfaces = []
try:
hkey = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, r"SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkCards")
for index in range(winreg.QueryInfoKey(hkey)[0]):
network_card_id = winreg.EnumKey(hkey, index)
hkeycard = winreg.OpenKey(hkey, network_card_id)
guid, _ = winreg.QueryValueEx(hkeycard, "ServiceName")
connection = r"SYSTEM\CurrentControlSet\Control\Network\{4D36E972-E325-11CE-BFC1-08002BE10318}" + "\{}\Connection".format(guid)
hkeycon = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, connection)
name, _ = winreg.QueryValueEx(hkeycon, "Name")
npf_interface = "\\Device\\NPF_{guid}".format(guid=guid)
interfaces.append({"id": npf_interface,
"name": name})
winreg.CloseKey(hkeycon)
winreg.CloseKey(hkeycard)
winreg.CloseKey(hkey)
except OSError as e:
log.error("could not read registry information: {}".format(e))
return interfaces
def get_windows_interfaces():
"""
Get Windows interfaces.
:returns: list of windows interfaces
"""
import win32com.client
import pywintypes
interfaces = []
try:
locator = win32com.client.Dispatch("WbemScripting.SWbemLocator")
service = locator.ConnectServer(".", "root\cimv2")
# more info on Win32_NetworkAdapter: http://msdn.microsoft.com/en-us/library/aa394216%28v=vs.85%29.aspx
for adapter in service.InstancesOf("Win32_NetworkAdapter"):
if adapter.NetConnectionStatus == 2 or adapter.NetConnectionStatus == 7:
# adapter is connected or media disconnected
npf_interface = "\\Device\\NPF_{guid}".format(guid=adapter.GUID)
interfaces.append({"id": npf_interface,
"name": adapter.NetConnectionID})
except (AttributeError, pywintypes.com_error):
log.warn("Could not use the COM service to retrieve interface info, trying using the registry...")
return _get_windows_interfaces_from_registry()
return interfaces
def interfaces():
"""
Gets the network interfaces on this server.
:returns: list of network interfaces
"""
results = []
if not sys.platform.startswith("win"):
try:
import netifaces
for interface in netifaces.interfaces():
results.append({"id": interface,
"name": interface})
except ImportError:
raise aiohttp.web.HTTPInternalServerError(text="Could not import netifaces module")
else:
try:
results = get_windows_interfaces()
except ImportError:
message = "pywin32 module is not installed, please install it on the server to get the available interface names"
raise aiohttp.web.HTTPInternalServerError(text=message)
except Exception as e:
log.error("uncaught exception {type}".format(type=type(e)), exc_info=1)
raise aiohttp.web.HTTPInternalServerError(text="uncaught exception: {}".format(e))
return results