Enable DHCP

import os

import ctypes

import re

import shutil

vbs1=r'''

strComputer = "." 

Set objWMIService = GetObject("winmgmts:" _ 

    & "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2") 

Set colNetAdapters = objWMIService.ExecQuery _ 

    ("Select * from Win32_NetworkAdapterConfiguration where IPEnabled=TRUE") 

For Each objNetAdapter In colNetAdapters 

    errEnable = objNetAdapter.EnableDHCP() 

Next 

'''

class disable_file_system_redirection:

    _disable = ctypes.windll.kernel32.Wow64DisableWow64FsRedirection

    _revert = ctypes.windll.kernel32.Wow64RevertWow64FsRedirection

    def __enter__(self):

        self.old_value = ctypes.c_long()

        self.success = self._disable(ctypes.byref(self.old_value))

    def __exit__(self, type, value, traceback):

        if self.success:

            self._revert(self.old_value)

​

with disable_file_system_redirection():

    cmd=os.popen('ipconfig /all').read()

    a=re.search("DHCP Enabled. . . . . . . . . . . : Yes",cmd)

    if a:

        print "DHCP is already enabled in this interface"

    else:

        workdir=os.environ['PROGRAMDATA']+r'\temp'

        if not os.path.exists(workdir): 

            os.makedirs(workdir)

        with open(workdir+r'\temprun.vbs',"w") as f :

            f.write(vbs1)

        print os.popen('cscript.exe "'+workdir+r'\temprun.vbs"').read()

        print('DHCP .........Enabled')

        if os.path.exists(workdir):

            shutil.rmtree(workdir)

​

​