大家開發網絡程序,經常要連接其他主機,如果在xp上運行,一定會提示你,只有選擇解除阻止才能實現正常的網絡連接.那么有沒有辦法在防火墻的例外列表里面通過編程的方式加入自己的程序呢?
?當然有了,不然就不要介紹了
xp的系統目錄下面有個hnetcfg.dll就是這個編程接口,頭文件是netfw.h,初始化代碼如下:
INetFwProfile* m_pFireWallProfile=NULL;
HRESULT?hr?
=
?S_FALSE;
????INetFwMgr
*
?fwMgr?
=
?NULL;
????INetFwPolicy
*
?fwPolicy?
=
?NULL;
????FW_ERROR_CODE?ret?
=
?FW_NOERROR;
????
try
????
{
????????
if
(?m_pFireWallProfile?)
????????????
throw
?FW_ERR_INITIALIZED;
????????
//
?Create?an?instance?of?the?firewall?settings?manager.
????????hr?
=
?CoCreateInstance(?__uuidof(NetFwMgr),?NULL,?CLSCTX_INPROC_SERVER,?__uuidof(?INetFwMgr),?(
void
**
)
&
fwMgr?);
????????
if
(?FAILED(?hr?))
????????????
throw
?FW_ERR_CREATE_SETTING_MANAGER;
????????
//
?Retrieve?the?local?firewall?policy.
????????hr?
=
?fwMgr
->
get_LocalPolicy(?
&
fwPolicy?);
????????
if
(?FAILED(?hr?))
????????????
throw
?FW_ERR_LOCAL_POLICY;
????????
//
?Retrieve?the?firewall?profile?currently?in?effect
????????hr?
=
?fwPolicy
->
get_CurrentProfile(?
&
m_pFireWallProfile?);
????????
if
(?FAILED(?hr?))
????????????
throw
?FW_ERR_PROFILE;
????}
????
catch
(?FW_ERROR_CODE?nError)
????
{
????????ret?
=
?nError;
????}
????
if
(?fwPolicy?)
????????fwPolicy
->
Release();
????
if
(?fwMgr?)
????????fwMgr
->
Release();
????
return
?ret;
將程序名稱加入例外列表:
WinXPSP2FireWall::AddApplication(?const?wchar_t*?lpszProcessImageFileName,?const?wchar_t*?lpszRegisterName?)
{
????FW_ERROR_CODE?ret?=?FW_NOERROR;
????HRESULT?hr;
????BOOL?bAppEnable;
????BSTR?bstrProcessImageFileName?=?NULL;
????BSTR?bstrRegisterName?=?NULL;
????INetFwAuthorizedApplication*?pFWApp?=?NULL;
????INetFwAuthorizedApplications*?pFWApps?=?NULL;
????try
????{
????????if(?m_pFireWallProfile?==?NULL?)
????????????throw?FW_ERR_INITIALIZED;
????????if(?lpszProcessImageFileName?==?NULL?||?lpszRegisterName??==?NULL?)
????????????throw?FW_ERR_INVALID_ARG;
????????//?First?of?all,?check?the?application?is?already?authorized;
????????FW_ERROR_CODE??nError?=?this->IsAppEnabled(?lpszProcessImageFileName,?bAppEnable?);
????????if(?nError?!=?FW_NOERROR?)
????????????throw?nError;
????????//?Only?add?the?application?if?it?isn't?authorized
????????if(?bAppEnable?==?FALSE?)
????????{
????????????//?Retrieve?the?authorized?application?collection
????????????hr?=?m_pFireWallProfile->get_AuthorizedApplications(?&pFWApps?);
????????????if(?FAILED(?hr?))
????????????????throw?FW_ERR_AUTH_APPLICATIONS;
????????????//?Create?an?instance?of?an?authorized?application
????????????hr?=?CoCreateInstance(?__uuidof(NetFwAuthorizedApplication),?NULL,?CLSCTX_INPROC_SERVER,?__uuidof(INetFwAuthorizedApplication),?(void**)&pFWApp);
????????????if(?FAILED(?hr?))
????????????????throw?FW_ERR_CREATE_APP_INSTANCE;
????????????//?Allocate?a?BSTR?for?the?Process?Image?FileName
????????????bstrProcessImageFileName?=?SysAllocString(?lpszProcessImageFileName?);
????????????if(?SysStringLen(?bstrProcessImageFileName?)?==?0)
????????????????throw?FW_ERR_SYS_ALLOC_STRING;
????????????//?Set?the?process?image?file?name
????????????hr?=?pFWApp->put_ProcessImageFileName(?bstrProcessImageFileName?);
????????????if(?FAILED(?hr?)?)
????????????????throw?FW_ERR_PUT_PROCESS_IMAGE_NAME;
????????????//?Allocate?a?BSTR?for?register?name
????????????bstrRegisterName?=?SysAllocString(?lpszRegisterName?);
????????????if(?SysStringLen(?bstrRegisterName?)?==?0)
????????????????throw?FW_ERR_SYS_ALLOC_STRING;
????????????//?Set?a?registered?name?of?the?process
????????????hr?=?pFWApp->put_Name(?bstrRegisterName?);
????????????if(?FAILED(?hr?))
????????????????throw?FW_ERR_PUT_REGISTER_NAME;
????????????
????????????//?Add?the?application?to?the?collection
????????????hr?=?pFWApps->Add(?pFWApp?);
????????????if(?FAILED(?hr?))
????????????????throw?FW_ERR_ADD_TO_COLLECTION;
????????}
????}
????catch(?FW_ERROR_CODE?nError?)
????{
????????ret?=?nError;
????}
????SysFreeString(?bstrProcessImageFileName?);
????SysFreeString(?bstrRegisterName?);
????if(?pFWApp?)
????????pFWApp->Release();
????if(?pFWApps?)
????????pFWApps->Release();
????return?ret;
}