SetADAuthenticatedUser Callback Function

Article
08/13/2010

The SetADAuthenticatedUser callback function is used by Web filters to set the authenticated Windows user. This enables associating information about an authenticated user with the current request.

The SetADAuthenticatedUser callback function is declared as:

Syntax

BOOL WINAPI * SetADAuthenticatedUser(
  __in  struct _HTTP_FILTER_CONTEXT* pfc,
  __in  LPSTR lpszUserName ,
  __in  LPSTR lpszPassword ,
  __in  HANDLE hToken 
);

Parameters

pfc
Pointer to the HTTP_FILTER_CONTEXT data structure that is associated with the current, active HTTP session. Pass the filter context in this parameter.
lpszUserName
Pointer to a null-terminated string containing the user name.
lpszPassword
Pointer to a null-terminated string containing the user password.
hToken
Token handle.

Return Value

This callback function returns TRUE if the call is successful; otherwise, it returns FALSE. To obtain extended error information, call GetLastError.

Remarks

The user token is received using the Security Support Provider Interface (SSPI) layer.

If there is a token, there is no need to pass the password. However, if the token field is NULL, you should provide the password. The user name must be provided if there is a token or if the token field is NULL.

After you provide the token handle to the function, you should close the token handle to prevent handle leaks.

Web filters call the SetADAuthenticatedUser function through a pointer that is a member of the WPX_FILTER_AUTHENT_EX structure. A pointer to this structure is passed in each call to the HttpFilterProc entry-point function when the Web proxy sends an SF_NOTIFY_AUTHENTICATION notification to the Web filters that are registered to receive this notification just before Forefront TMG authenticates a client. If the fAuthIsRequired member of the WPX_FILTER_AUTHENT_EX structure is set to FALSE, the call to SetADAuthenticatedUser succeeds, but the user specified is not set as an authenticated user.

Requirements

Server	Requires Windows Server 2008 R2 or Windows Server 2008 x64 Edition with SP2.
Version	Requires Forefront Threat Management Gateway (TMG) 2010.
Header	Declared in Wpxhttpfilt.h.
DLL	Requires W3Filter.dll.

Share via