我正在開發憑證提供程序和篩選器。我有一些鎖定方案的問題。Windows憑據提供程序,篩選器和解鎖工作站方案
首先,我嘗試了here的SampleAllControlCredentialProvider。它的工作原理。即使我之後登錄並鎖定,它也會顯示我的憑據。
其次,我嘗試通過添加一些代碼行來製作我自己的憑證提供程序過濾器。過濾器正在過濾Windows的憑證,只有我的憑證才允許出現。這是我的另外代碼:
在CSampleProvider.h,我做類來實現 ICredentialProviderFilter
class CSampleProvider : public ICredentialProvider, public ICredentialProviderFilter
在CSampleProvider.h,我改變STDMETHOD(的QueryInterface)到
STDMETHOD (QueryInterface)(REFIID riid, void** ppv)
{
HRESULT hr;
if (IID_IUnknown == riid)
{
*ppv = this;
AddRef();
hr = S_OK;
}
else if (IID_ICredentialProvider == riid)
{
*ppv = static_cast<ICredentialProvider*>(this);
AddRef();
hr = S_OK;
}
else if (IID_ICredentialProviderFilter == riid)
{
*ppv = static_cast<ICredentialProviderFilter*>(this);
AddRef();
hr = S_OK;
}
else
{
*ppv = NULL;
hr = E_NOINTERFACE;
}
return hr;
}
仍在CSampleProvider.h中,我添加了這些代碼行
//ICredentialProviderFilter
public:
/**
* \brief method to filter CPProvider
* \param cpus - CP usage scenario
* \param dwFlags
* \param rgclsidProviders
* \param rgbAllow
* \param cProviders
* \return IFACEMETHODIMP
*/
IFACEMETHODIMP Filter(
CREDENTIAL_PROVIDER_USAGE_SCENARIO cpus,
DWORD dwFlags,
GUID *rgclsidProviders,
BOOL *rgbAllow,
DWORD cProviders);
/**
* \brief method to update remote logon credential
* \param pcpcsIn - serialized logon credential
* \param pcpcsOut - returned logon credential
* \return IFACEMETHODIMP
*/
IFACEMETHODIMP UpdateRemoteCredential(
const CREDENTIAL_PROVIDER_CREDENTIAL_SERIALIZATION *pcpcsIn,
CREDENTIAL_PROVIDER_CREDENTIAL_SERIALIZATION *pcpcsOut);
那麼,這是過濾方法的實現(CSampleProvider.cpp內):
HRESULT CSampleProvider::Filter(CREDENTIAL_PROVIDER_USAGE_SCENARIO cpus,DWORD dwFlags,GUID* rgclsidProviders,BOOL* rgbAllow,DWORD cProviders)
{
//UNUSED(dwFlags);
UNREFERENCED_PARAMETER(dwFlags);
MessageBox(NULL, "Filter!", "Trace", NULL);
switch (cpus)
{
case CPUS_LOGON:
case CPUS_UNLOCK_WORKSTATION:
//Filters out the default Windows provider (only for Logon and Unlock scenarios)
for (int i = 0; i < (int)cProviders; i++)
{
if (IsEqualGUID(rgclsidProviders[i], CLSID_CSampleProvider)) rgbAllow[i]=true;
else rgbAllow[i] = false;;
//rgbAllow[i]=true;
}
return S_OK;
case CPUS_CREDUI:
case CPUS_CHANGE_PASSWORD:
return E_NOTIMPL;
default:
return E_INVALIDARG;
}
}
HRESULT CSampleProvider::UpdateRemoteCredential(const CREDENTIAL_PROVIDER_CREDENTIAL_SERIALIZATION* pcpcsIn, CREDENTIAL_PROVIDER_CREDENTIAL_SERIALIZATION* pcpcsOut)
{
UNREFERENCED_PARAMETER(pcpcsOut);
UNREFERENCED_PARAMETER(pcpcsIn);
return E_NOTIMPL;
}
最後,我運行包含此.reg文件:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\Credential Providers\{F2ADF4EC-5DAA-407e-9776-10B25A64A435}]
@="SampleAllControlsCredentialProvider"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\Credential Provider Filters\{F2ADF4EC-5DAA-407e-9776-10B25A64A435}]
@="SampleAllControlsCredentialProvider"
[HKEY_CLASSES_ROOT\CLSID\{F2ADF4EC-5DAA-407e-9776-10B25A64A435}]
@="SampleAllControlsCredentialProvider"
[HKEY_CLASSES_ROOT\CLSID\{F2ADF4EC-5DAA-407e-9776-10B25A64A435}\InprocServer32]
@="SampleAllControlsCredentialProvider.dll"
"ThreadingModel"="Apartment"
其實,一切正常,除了只是爲了鎖定場景。所以,我成功登錄後,點擊鎖定。通常,如果我切換用戶或註銷,我的憑證應該出現在登錄屏幕上。但是現在,在僅實現過濾器之後,沒有任何顯示,只有沒有任何憑據的藍色登錄屏幕。
有誰知道會發生什麼,做什麼?