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winroute.py
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#!/usr/bin/python
# -*- coding:utf-8 -*-
#
__author__ = 'Shinlor'
import ctypes
import socket
import struct
DWORD = ctypes.c_ulong
NO_ERROR = 0
NULL = ""
bOrder = 0
ANY_SIZE=1
class MIB_IPFORWARDROW(ctypes.Structure):
_fields_ = [('dwForwardDest', DWORD),#目标IP
('dwForwardMask', DWORD),#网络掩码
('dwForwardPolicy', DWORD),#多径路由策略
('dwForwardNextHop', DWORD),#下一跳IP
('dwForwardIfIndex', DWORD),#接口索引
('dwForwardType', DWORD),#路由类型
('dwForwardProto', DWORD),#路由协议
('dwForwardAge', DWORD),#路由时间
('dwForwardNextHopAS', DWORD),#下一跳编号
('dwForwardMetric1', DWORD),#跃点数
('dwForwardMetric2', DWORD),
('dwForwardMetric3', DWORD),
('dwForwardMetric4', DWORD),
('dwForwardMetric5', DWORD)]
class WinRoute():
def __init__(self):
self.DWORD = ctypes.c_ulong
self.NULL = ""
self.NO_ERROR = 0
self.bOrder = 0
self.ANY_SIZE=1
#得到默认路由的参数
IpForwardTablelist=self.getroute()#获得当前路由表
for tmp in IpForwardTablelist:
if tmp["ForwardDest"]=="0.0.0.0": #查找默认路由的有关参数，除要修改的部分，其他元素使用默认路由的值
#如果不给定网关，则默认为默认路由的网关
self.dwForwardNextHop = struct.unpack("I",socket.inet_aton(tmp["ForwardNextHop"]))[0]
self.dwForwardPolicy = struct.unpack("I",socket.inet_aton(tmp["ForwardPolicy"]))[0]
#如果不给定ForwardIfIndex，则默认为默认路由的接口
self.dwForwardIfIndex=tmp["ForwardIfIndex"]
self.dwForwardType=tmp["ForwardType"]
self.dwForwardProto=tmp["ForwardProto"]
self.dwForwardAge=tmp["ForwardAge"]
self.dwForwardNextHopAS=tmp["ForwardNextHopAS"]
#win7及win10无法设定小于默认路由的Metric值，这里使用了相加。若不给定，最终与默认路由的Metric相同
self.dwForwardMetric1=tmp["ForwardMetric1"]
self.dwForwardMetric2=tmp["ForwardMetric2"]
self.dwForwardMetric3=tmp["ForwardMetric3"]
self.dwForwardMetric4=tmp["ForwardMetric4"]
self.dwForwardMetric5=tmp["ForwardMetric5"]
pass
def printroute(self):
#得到路由表的列表
IpForwardTablelist=self.getroute()
#格式化输出
print( "%-13s %-11s %-12s %-12s %-4s %-3s %-4s %-3s %-4s %-3s %-3s %-3s %-3s %-3s" %
(
'目标IP',
'网络掩码',
'多径路由策略',
'下一跳IP',
'接口索引',
'路由类型',
'路由协议',
'路由时间',
'下一跳编号',
'Metric1',
'Metric2',
'Metric3',
'Metric4',
'Metric5')
)
for tmp in IpForwardTablelist:
print("%-13s %-11s %-12s %-12s %-4s %-3s %-4s %-3s %-4s %-3s %-3s %-3s %-3s %-3s" %
(tmp['ForwardDest'],
tmp['ForwardMask'],
tmp['ForwardPolicy'],
tmp['ForwardNextHop'],
tmp['ForwardIfIndex'],
tmp['ForwardType'],
tmp['ForwardProto'],
tmp['ForwardAge'],
tmp['ForwardNextHopAS'],
tmp['ForwardMetric1'],
tmp['ForwardMetric2'],
tmp['ForwardMetric3'],
tmp['ForwardMetric4'],
tmp['ForwardMetric5'],
)
)
def getroute (self):
DWORD=self.DWORD
NULL=self.NULL
NO_ERROR=self.NO_ERROR
bOrder=self.bOrder
ANY_SIZE=self.ANY_SIZE
dwSize = DWORD(0)
IpForwardTablelist=[]
# call once to get dwSize
dwStatus=ctypes.windll.iphlpapi.GetIpForwardTable(NULL, ctypes.byref(dwSize), bOrder)
#print (dwStatus)
# ANY_SIZE is used out of convention (to be like MS docs); even setting this
# to dwSize will likely be much larger than actually necessary but much
# more efficient that just declaring ANY_SIZE = 65500.
# (in C we would use malloc to allocate memory for the *table pointer and
# then have ANY_SIZE set to 1 in the structure definition)
ANY_SIZE = dwSize.value
class MIB_IPFORWARDTABLE(ctypes.Structure):
_fields_ = [('dwNumEntries', DWORD), ('table', MIB_IPFORWARDROW * ANY_SIZE)]
#print (ANY_SIZE)
IpForwardTable=MIB_IPFORWARDTABLE()
if (ctypes.windll.iphlpapi.GetIpForwardTable(ctypes.byref(IpForwardTable),
ctypes.byref(dwSize), bOrder) == NO_ERROR):
maxNum = IpForwardTable.dwNumEntries
#print(IpForwardTable.dwNumEntries)
#print (IpForwardTable.table)
placeHolder = 0
# loop through every connection
while placeHolder < maxNum:
item = IpForwardTable.table[placeHolder]
IpForwardDcit={}
placeHolder += 1
ForwardNextHop=item.dwForwardNextHop
ForwardDest=item.dwForwardDest
ForwardDest=socket.inet_ntoa(struct.pack('L', ForwardDest))
ForwardMask=item.dwForwardMask
ForwardMask=socket.inet_ntoa(struct.pack('L', ForwardMask))
ForwardPolicy=item.dwForwardPolicy
ForwardPolicy=socket.inet_ntoa(struct.pack('L', ForwardPolicy))
ForwardNextHop=item.dwForwardNextHop
#使用socket模块，转换32位打包的IPV4地址为IP地址的标准点号分隔字符串表示
ForwardNextHop = socket.inet_ntoa(struct.pack('L', ForwardNextHop))
ForwardIfIndex=item.dwForwardIfIndex
ForwardType=item.dwForwardType
ForwardProto=item.dwForwardProto
ForwardAge=item.dwForwardAge
ForwardNextHopAS=item.dwForwardNextHopAS
ForwardMetric1=item.dwForwardMetric1
ForwardMetric2=item.dwForwardMetric2
ForwardMetric3=item.dwForwardMetric3
ForwardMetric4=item.dwForwardMetric4
ForwardMetric5=item.dwForwardMetric5
#字典IpForwardDcit赋值
IpForwardDcit["ForwardDest"]=ForwardDest
IpForwardDcit["ForwardMask"]=ForwardMask
IpForwardDcit["ForwardPolicy"]=ForwardPolicy
IpForwardDcit["ForwardNextHop"]=ForwardNextHop
IpForwardDcit["ForwardIfIndex"]=ForwardIfIndex
IpForwardDcit["ForwardType"]=ForwardType
IpForwardDcit["ForwardProto"]=ForwardProto
IpForwardDcit["ForwardAge"]=ForwardAge
IpForwardDcit["ForwardNextHopAS"]=ForwardNextHopAS
IpForwardDcit["ForwardMetric1"]=ForwardMetric1
IpForwardDcit["ForwardMetric2"]=ForwardMetric2
IpForwardDcit["ForwardMetric3"]=ForwardMetric3
IpForwardDcit["ForwardMetric4"]=ForwardMetric4
IpForwardDcit["ForwardMetric5"]=ForwardMetric5
IpForwardTablelist.append(IpForwardDcit)
return IpForwardTablelist
def CreateIpForwardEntry(self,dwForwardDest,dwForwardMask,
dwForwardNextHop=None,dwForwardMetric=0,dwForwardIfIndex=None):
DWORD=self.DWORD
NULL=self.NULL
NO_ERROR=self.NO_ERROR
bOrder=self.bOrder
ANY_SIZE=self.ANY_SIZE
pRoute=MIB_IPFORWARDROW() #建立结构域
pRoute.dwForwardDest = struct.unpack("I",socket.inet_aton(dwForwardDest))[0] #转换“0.0.0.0”格式的IP地址为网络序，注意不是主机字节序
pRoute.dwForwardMask =struct.unpack("I",socket.inet_aton(dwForwardMask))[0]
#如果不给定网关，则默认为默认路由的网关
pRoute.dwForwardNextHop = self.dwForwardNextHop
if dwForwardNextHop != None:
pRoute.dwForwardNextHop = struct.unpack("I",socket.inet_aton(dwForwardNextHop))[0]
pRoute.dwForwardPolicy = self.dwForwardPolicy
#如果不给定ForwardIfIndex，则默认为默认路由的接口
pRoute.dwForwardIfIndex=self.dwForwardIfIndex
if dwForwardIfIndex != None:
pRoute.dwForwardIfIndex=dwForwardIfIndex
pRoute.dwForwardType=self.dwForwardType
pRoute.dwForwardProto=self.dwForwardProto
pRoute.dwForwardAge=self.dwForwardAge
pRoute.dwForwardNextHopAS=self.dwForwardNextHopAS
# #win7及win10无法设定小于默认路由的Metric值，这里使用了相加。若不给定，最终与默认路由的Metric相同
pRoute.dwForwardMetric1=self.dwForwardMetric1+dwForwardMetric
pRoute.dwForwardMetric2=self.dwForwardMetric2
pRoute.dwForwardMetric3=self.dwForwardMetric3
pRoute.dwForwardMetric4=self.dwForwardMetric4
pRoute.dwForwardMetric5=self.dwForwardMetric5
dwStatus=ctypes.windll.iphlpapi.CreateIpForwardEntry(ctypes.byref(pRoute))
# print(type(dwStatus))
# print(dwStatus)
if dwStatus==5:
print("权限不足")
if dwStatus==5010:
print("已存在")
# if dwStatus==0:
# print ("添加路由成功")
return
def DeleteIpForwardEntry(self,dwForwardDest,dwForwardMask,
dwForwardNextHop=None,dwForwardMetric=0,dwForwardIfIndex=None):
DWORD=self.DWORD
NULL=self.NULL
NO_ERROR=self.NO_ERROR
bOrder=self.bOrder
ANY_SIZE=self.ANY_SIZE
pRoute=MIB_IPFORWARDROW() #建立结构域
#转换“0.0.0.0”格式的IP地址为网络序，注意不是主机字节序
pRoute.dwForwardDest = struct.unpack("I",socket.inet_aton(dwForwardDest))[0]
pRoute.dwForwardMask =struct.unpack("I",socket.inet_aton(dwForwardMask))[0]
# 如果不给定网关，则默认为默认路由的网关
pRoute.dwForwardNextHop = self.dwForwardNextHop
if dwForwardNextHop != None:
pRoute.dwForwardNextHop = struct.unpack("I",socket.inet_aton(dwForwardNextHop))[0]
pRoute.dwForwardPolicy = self.dwForwardPolicy
#如果不给定ForwardIfIndex，则默认为默认路由的接口
pRoute.dwForwardIfIndex=self.dwForwardIfIndex
if dwForwardIfIndex != None:
pRoute.dwForwardIfIndex = dwForwardIfIndex
pRoute.dwForwardType=self.dwForwardType
pRoute.dwForwardProto=self.dwForwardProto
pRoute.dwForwardAge=self.dwForwardAge
pRoute.dwForwardNextHopAS=self.dwForwardNextHopAS
#win7及win10无法设定小于默认路由的Metric值，这里使用了相加。若不给定，最终与默认路由的Metric相同
pRoute.dwForwardMetric1=self.dwForwardMetric1+dwForwardMetric
pRoute.dwForwardMetric2=self.dwForwardMetric2
pRoute.dwForwardMetric3=self.dwForwardMetric3
pRoute.dwForwardMetric4=self.dwForwardMetric4
pRoute.dwForwardMetric5=self.dwForwardMetric5
dwStatus=ctypes.windll.iphlpapi.DeleteIpForwardEntry(ctypes.byref(pRoute))
# print(type(dwStatus))
# print(dwStatus)
if dwStatus==5:
print("权限不足")
if dwStatus==5010:
print("不存在")
# if dwStatus==0:
# print ("删除路由成功")
return