openvpn国内外网站区分访问.
通过从apnic.net下载的IP地址所在地信息表数据生成一个脚本将中国大陆地区的IP添加到路由表中.当OpenVPN启动或关闭时,通过脚本来自动添加路由信息.
原文地址: http://docs.google.com/View?id=dg6xfw7w_0hbbkmwcg
file:chnroutes.py
#!/usr/bin/env python # Usage: # This script will generate two files(vpnup and vpndown) after executing. # Do chmod a+x on the two newly created files, and then move them to the # openvpn config folder. then add the following two lines to the vpn config file: # up vpnup # down vpndown # you might also need 'redirect-gateway' in the config file, if you don't use vpn # as the default gateway. import re import urllib VPNUPBASE="""#!/bin/sh export PATH="/bin:/sbin:/usr/sbin:/usr/bin" OLDGW=`ip route show | grep '^default' | sed -e 's/default via \\([^ ]*\\).*/\\1/'` if [ $OLDGW == '' ]; then exit 0 fi if [ ! -e /tmp/openvpn_oldgw ]; then echo $OLDGW > /tmp/openvpn_oldgw fi """ VPNDOWNBASE="""#!/bin/sh export PATH="/bin:/sbin:/usr/sbin:/usr/bin" OLDGW=`cat /tmp/openvpn_oldgw` """ url=r'http://ftp.apnic.net/apnic/dbase/data/country-ipv4.lst' handler=urllib.urlopen(url) upfile=open('vpnup','w') downfile=open('vpndown','w') upfile.write(VPNUPBASE) upfile.write('\n') downfile.write(VPNDOWNBASE) downfile.write('\n') for line in handler.readlines(): if line.find(': cn ') < 0: continue r=line.split(':')[1] r=r.strip() ip,mask=r.split('/') ip=ip.split('.') while len(ip) < 4: ip.append('0') mask=int(mask) bm='1'*mask+'0'*(32-mask) mask="%d.%d.%d.%d"%(int(bm[0:8],2),int(bm[8:16],2),int(bm[16:24],2),int(bm[24:32],2)) upfile.write('route add -net %s netmask %s gw $OLDGW\n'%('.'.join(ip),mask)) downfile.write('route del -net %s netmask %s\n'%('.'.join(ip),mask)) downfile.write('rm /tmp/openvpn_oldgw\n') upfile.close() downfile.close() |
注:
chnroutes.py 生成的是linux下使用的shell.
window的vpnup.bat格式如下,可自行查找替换来修改使用
@echo off
for /F "tokens=3 delims=: " %%a in ('route print ^| find "Default Gateway:"') do set gw=%%a
route add 110.6.0.0 mask 255.254.0.0 %gw% metric 5
route add 110.16.0.0 mask 255.252.0.0 %gw% metric 5
route add 110.40.0.0 mask 255.252.0.0 %gw% metric 5 |