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167 lines
3.7 KiB
167 lines
3.7 KiB
/*===================================================================
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Microsoft Denali
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Microsoft Confidential.
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Copyright 1996 Microsoft Corporation. All Rights Reserved.
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Component: NT/OLE Security
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File: NTSec.cpp
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Owner: AndrewS
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This file contains code related to NT security on Desktops
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BUG 87164: This whole code path is unused. I'm leaving this around
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in case we ever need it.
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===================================================================*/
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#include "denpre.h"
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#pragma hdrstop
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#include "ntsec.h"
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// Globals
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HDESK ghDesktop = NULL;
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HDESK ghdeskPrev = NULL;
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// Local Defines
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// Note: This name is deliberately obscure so no one will guess it
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#define SZ_DEN_DESKTOP "__A8D9S1_42_D"
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#define DESKTOP_ALL (DESKTOP_READOBJECTS | DESKTOP_CREATEWINDOW | \
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DESKTOP_CREATEMENU | DESKTOP_HOOKCONTROL | \
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DESKTOP_JOURNALRECORD | DESKTOP_JOURNALPLAYBACK | \
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DESKTOP_ENUMERATE | DESKTOP_WRITEOBJECTS | \
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DESKTOP_SWITCHDESKTOP | STANDARD_RIGHTS_REQUIRED)
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/*===================================================================
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InitDesktop
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Create a desktop for ASP threads to use & tells Viper to call
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us back on every thread create so we can set the desktop
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Parameters:
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Returns:
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HRESULT S_OK on success
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Side effects
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Sets global variables
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===================================================================*/
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HRESULT InitDesktop()
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{
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HRESULT hr = S_OK;
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DWORD err;
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HDESK hDesktop = NULL;
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// Only applies to NT
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if (!Glob(fWinNT))
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return(S_OK);
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// Save the old desktop because we might need it later for an obscure error condition
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if ((ghdeskPrev = GetThreadDesktop(GetCurrentThreadId())) == NULL)
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goto LErr;
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// Create a desktop for denali to use
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if ((hDesktop = CreateDesktop(SZ_DEN_DESKTOP, NULL, NULL, 0, DESKTOP_ALL, NULL)) == NULL)
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goto LErr;
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// store this handle in the global
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ghDesktop = hDesktop;
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#ifdef UNUSED
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hr = SetViperThreadEvents();
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Assert(SUCCEEDED(hr));
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#endif
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return(hr);
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LErr:
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Assert(FALSE);
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if (hDesktop != NULL)
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CloseDesktop(hDesktop);
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err = GetLastError();
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hr = HRESULT_FROM_WIN32(err);
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return(hr);
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}
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/*===================================================================
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UnInitDesktop
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Destroy the ASP desktop
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Parameters:
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None
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Returns:
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Nothing
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Side effects
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Sets global variables
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===================================================================*/
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VOID UnInitDesktop()
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{
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BOOL fClosed;
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if (ghDesktop != NULL)
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{
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BOOL fRetried = FALSE;
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LRetry:
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Assert(ghDesktop != NULL);
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fClosed = CloseDesktop(ghDesktop);
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// If this fails, it probably means that we are in the obscure case where
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// IIS's CacheExtensions registry setting is 0. In this case, we are shutting
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// down in a worker thread. This worker thread is using the desktop, so
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// it cant be closed. In this case, attempt to set the desktop back to the
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// original IIS desktop, and then retry closing the desktop. Only retry once.
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if (!fClosed && !fRetried)
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{
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fRetried = TRUE;
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if (!SetThreadDesktop(ghdeskPrev))
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Assert(FALSE);
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goto LRetry;
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}
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// BUG 86775: Begning assert
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// Assert(fClosed);
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ghDesktop = NULL;
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}
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return;
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}
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/*===================================================================
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SetDesktop
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Set the desktop for the calling thread
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Parameters:
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None
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Returns:
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S_OK on success
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Side effects:
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Sets desktop
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===================================================================*/
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HRESULT SetDesktop()
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{
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DWORD err;
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if (Glob(fWinNT) && ghDesktop != NULL)
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{
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if (!SetThreadDesktop(ghDesktop))
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goto LErr;
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}
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return(S_OK);
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LErr:
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Assert(FALSE);
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err = GetLastError();
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return(HRESULT_FROM_WIN32(err));
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}
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