149 lines
		
	
	
		
			5.0 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			149 lines
		
	
	
		
			5.0 KiB
		
	
	
	
		
			C
		
	
	
	
/************************************************************
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Author: Eamon Walsh <ewalsh@tycho.nsa.gov>
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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this permission notice appear in supporting documentation.  This permission
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notice shall be included in all copies or substantial portions of the
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Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
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AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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********************************************************/
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#ifndef _XACE_H
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#define _XACE_H
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#ifdef XACE
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#define XACE_MAJOR_VERSION		2
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#define XACE_MINOR_VERSION		0
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#include "extnsionst.h"
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#include "pixmap.h"
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#include "region.h"
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#include "window.h"
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#include "property.h"
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#include "selection.h"
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/* Default window background */
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#define XaceBackgroundNoneState(w) ((w)->forcedBG ? BackgroundPixel : None)
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/* security hooks */
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/* Constants used to identify the available security hooks
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 */
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#define XACE_CORE_DISPATCH		0
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#define XACE_EXT_DISPATCH		1
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#define XACE_RESOURCE_ACCESS		2
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#define XACE_DEVICE_ACCESS		3
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#define XACE_PROPERTY_ACCESS		4
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#define XACE_SEND_ACCESS		5
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#define XACE_RECEIVE_ACCESS		6
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#define XACE_CLIENT_ACCESS		7
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#define XACE_EXT_ACCESS			8
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#define XACE_SERVER_ACCESS		9
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#define XACE_SELECTION_ACCESS		10
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#define XACE_SCREEN_ACCESS		11
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#define XACE_SCREENSAVER_ACCESS		12
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#define XACE_AUTH_AVAIL			13
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#define XACE_KEY_AVAIL			14
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#define XACE_NUM_HOOKS			15
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extern CallbackListPtr XaceHooks[XACE_NUM_HOOKS];
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/* Entry point for hook functions.  Called by Xserver.
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 * Required by libdbe and libextmod
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 */
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/* needs to be exported for in-tree modsetting driver, but not part 
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   of public API for external modules */
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_X_EXPORT int XaceHook(int hook, ... /* appropriate args for hook */);
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/* determine whether any callbacks are present for the XACE hook */
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int XaceHookIsSet(int hook);
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/* Special-cased hook functions
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 */
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int XaceHookDispatch0(ClientPtr ptr, int major);
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#define XaceHookDispatch(c, m) \
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    ((XaceHooks[XACE_EXT_DISPATCH] && (m) >= EXTENSION_BASE) ? \
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    XaceHookDispatch0((c), (m)) : \
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    Success)
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int XaceHookPropertyAccess(ClientPtr ptr, WindowPtr pWin, PropertyPtr *ppProp,
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                           Mask access_mode);
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int XaceHookSelectionAccess(ClientPtr ptr, Selection ** ppSel, Mask access_mode);
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/* needs to be exported for in-tree modsetting, but not part of public API */
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_X_EXPORT int XaceHookResourceAccess(ClientPtr client, XID id, RESTYPE rtype, void *res,
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                           RESTYPE ptype, void *parent, Mask access_mode);
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int XaceHookDeviceAccess(ClientPtr client, DeviceIntPtr dev, Mask access_mode);
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int XaceHookSendAccess(ClientPtr client, DeviceIntPtr dev, WindowPtr win,
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                       xEventPtr ev, int count);
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int XaceHookReceiveAccess(ClientPtr client, WindowPtr win, xEventPtr ev, int count);
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int XaceHookClientAccess(ClientPtr client, ClientPtr target, Mask access_mode);
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int XaceHookExtAccess(ClientPtr client, ExtensionEntry *ext);
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int XaceHookServerAccess(ClientPtr client, Mask access_mode);
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int XaceHookScreenAccess(ClientPtr client, ScreenPtr screen, Mask access_mode);
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int XaceHookScreensaverAccess(ClientPtr client, ScreenPtr screen, Mask access_mode);
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int XaceHookAuthAvail(ClientPtr client, XID authId);
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int XaceHookKeyAvail(xEventPtr ev, DeviceIntPtr dev, int count);
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/* Register a callback for a given hook.
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 */
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#define XaceRegisterCallback(hook,callback,data) \
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    AddCallback(XaceHooks+(hook), callback, data)
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/* Unregister an existing callback for a given hook.
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 */
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#define XaceDeleteCallback(hook,callback,data) \
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    DeleteCallback(XaceHooks+(hook), callback, data)
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/* XTrans wrappers for use by security modules
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 */
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int XaceGetConnectionNumber(ClientPtr ptr);
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int XaceIsLocal(ClientPtr ptr);
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/* From the original Security extension...
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 */
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void XaceCensorImage(ClientPtr client,
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                     RegionPtr pVisibleRegion,
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                     long widthBytesLine,
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                     DrawablePtr pDraw,
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                     int x, int y, int w, int h,
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                     unsigned int format, char *pBuf);
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#else                           /* XACE */
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/* Default window background */
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#define XaceBackgroundNoneState(w)		None
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/* Define calls away when XACE is not being built. */
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#ifdef __GNUC__
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#define XaceHookIsSet(args...) 0
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#define XaceHookDispatch(args...) Success
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#define XaceHookPropertyAccess(args...) Success
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#define XaceHookSelectionAccess(args...) Success
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#define XaceCensorImage(args...) { ; }
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#else
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#define XaceHookIsSet(...) 0
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#define XaceHookDispatch(...) Success
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#define XaceHookPropertyAccess(...) Success
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#define XaceHookSelectionAccess(...) Success
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#define XaceCensorImage(...) { ; }
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#endif
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#endif                          /* XACE */
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#endif                          /* _XACE_H */
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