127 lines
3.7 KiB
C++
127 lines
3.7 KiB
C++
// --------------------------------------------------------------------------
|
|
// Module Name: PrivilegeEnable.cpp
|
|
//
|
|
// Copyright (c) 1999-2000, Microsoft Corporation
|
|
//
|
|
// Classes that handle state preservation, changing and restoration.
|
|
//
|
|
// History: 1999-08-18 vtan created
|
|
// 1999-11-16 vtan separate file
|
|
// 2000-02-01 vtan moved from Neptune to Whistler
|
|
// --------------------------------------------------------------------------
|
|
|
|
#include "StandardHeader.h"
|
|
#include "PrivilegeEnable.h"
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CThreadToken::CThreadToken
|
|
//
|
|
// Arguments: <none>
|
|
//
|
|
// Returns: <none>
|
|
//
|
|
// Purpose: Initializes the CThreadToken object. Try the thread token
|
|
// first and if this fails try the process token.
|
|
//
|
|
// History: 1999-08-18 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
CThreadToken::CThreadToken (DWORD dwDesiredAccess) :
|
|
_hToken(NULL)
|
|
|
|
{
|
|
if (OpenThreadToken(GetCurrentThread(), dwDesiredAccess, FALSE, &_hToken) == FALSE)
|
|
{
|
|
TBOOL(OpenProcessToken(GetCurrentProcess(), dwDesiredAccess, &_hToken));
|
|
}
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CThreadToken::~CThreadToken
|
|
//
|
|
// Arguments: <none>
|
|
//
|
|
// Returns: <none>
|
|
//
|
|
// Purpose: Releases resources used by the CThreadToken object.
|
|
//
|
|
// History: 1999-08-18 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
CThreadToken::~CThreadToken (void)
|
|
|
|
{
|
|
ReleaseHandle(_hToken);
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CThreadToken::~CThreadToken
|
|
//
|
|
// Arguments: <none>
|
|
//
|
|
// Returns: <none>
|
|
//
|
|
// Purpose: Magically converts a CThreadToken to a HANDLE.
|
|
//
|
|
// History: 1999-08-18 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
CThreadToken::operator HANDLE (void) const
|
|
|
|
{
|
|
return(_hToken);
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CPrivilegeEnable::CPrivilegeEnable
|
|
//
|
|
// Arguments: pszName = Name of the privilege to enable.
|
|
//
|
|
// Returns: <none>
|
|
//
|
|
// Purpose: Gets the current state of the privilege and enables it. The
|
|
// privilege is specified by name and looked up.
|
|
//
|
|
// History: 1999-08-23 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
CPrivilegeEnable::CPrivilegeEnable (const TCHAR *pszName) :
|
|
_fSet(false),
|
|
_hToken(TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY)
|
|
|
|
{
|
|
TOKEN_PRIVILEGES newPrivilege;
|
|
|
|
if (LookupPrivilegeValue(NULL, pszName, &newPrivilege.Privileges[0].Luid) != FALSE)
|
|
{
|
|
DWORD dwReturnTokenPrivilegesSize;
|
|
|
|
newPrivilege.PrivilegeCount = 1;
|
|
newPrivilege.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
|
|
_fSet = (AdjustTokenPrivileges(_hToken, FALSE, &newPrivilege, sizeof(newPrivilege), &_oldPrivilege, &dwReturnTokenPrivilegesSize) != FALSE);
|
|
}
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CPrivilegeEnable::~CPrivilegeEnable
|
|
//
|
|
// Arguments: <none>
|
|
//
|
|
// Returns: <none>
|
|
//
|
|
// Purpose: Restores the previous state of the privilege prior to
|
|
// instantiation of the object.
|
|
//
|
|
// History: 1999-08-23 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
CPrivilegeEnable::~CPrivilegeEnable (void)
|
|
|
|
{
|
|
if (_fSet)
|
|
{
|
|
TBOOL(AdjustTokenPrivileges(_hToken, FALSE, &_oldPrivilege, 0, NULL, NULL));
|
|
}
|
|
}
|
|
|