xorg-server-1.4/Xext/xace.h

   1 /************************************************************
   2
   3 Author: Eamon Walsh <ewalsh@epoch.ncsc.mil>
   4
   5 Permission to use, copy, modify, distribute, and sell this software and its
   6 documentation for any purpose is hereby granted without fee, provided that
   7 this permission notice appear in supporting documentation.  This permission
   8 notice shall be included in all copies or substantial portions of the
   9 Software.
  10
  11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  12 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  14 AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  15 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  16 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  17
  18 ********************************************************/
  19
  20 #ifndef _XACE_H
  21 #define _XACE_H
  22
  23 /* Hook return codes */
  24 #define XaceErrorOperation  0
  25 #define XaceAllowOperation  1
  26 #define XaceIgnoreOperation 2
  27
  28 #ifdef XACE
  29
  30 #define XACE_EXTENSION_NAME             "XAccessControlExtension"
  31 #define XACE_MAJOR_VERSION              1
  32 #define XACE_MINOR_VERSION              0
  33
  34 #include "pixmap.h"     /* for DrawablePtr */
  35 #include "regionstr.h"  /* for RegionPtr */
  36
  37 #define XaceNumberEvents                0
  38 #define XaceNumberErrors                0
  39
  40 /* security hooks */
  41 /* Constants used to identify the available security hooks
  42  */
  43 #define XACE_CORE_DISPATCH              0
  44 #define XACE_EXT_DISPATCH               1
  45 #define XACE_RESOURCE_ACCESS            2
  46 #define XACE_DEVICE_ACCESS              3
  47 #define XACE_PROPERTY_ACCESS            4
  48 #define XACE_DRAWABLE_ACCESS            5
  49 #define XACE_MAP_ACCESS                 6
  50 #define XACE_BACKGRND_ACCESS            7
  51 #define XACE_EXT_ACCESS                 8
  52 #define XACE_HOSTLIST_ACCESS            9
  53 #define XACE_SITE_POLICY                10
  54 #define XACE_DECLARE_EXT_SECURE         11
  55 #define XACE_AUTH_AVAIL                 12
  56 #define XACE_KEY_AVAIL                  13
  57 #define XACE_WINDOW_INIT                14
  58 #define XACE_AUDIT_BEGIN                15
  59 #define XACE_AUDIT_END                  16
  60 #define XACE_NUM_HOOKS                  17
  61
  62 extern CallbackListPtr XaceHooks[XACE_NUM_HOOKS];
  63
  64 /* Entry point for hook functions.  Called by Xserver.
  65  */
  66 extern int XaceHook(
  67     int /*hook*/,
  68     ... /*appropriate args for hook*/
  69     );
  70
  71 /* Register a callback for a given hook.
  72  */
  73 #define XaceRegisterCallback(hook,callback,data) \
  74     AddCallback(XaceHooks+(hook), callback, data)
  75
  76 /* Unregister an existing callback for a given hook.
  77  */
  78 #define XaceDeleteCallback(hook,callback,data) \
  79     DeleteCallback(XaceHooks+(hook), callback, data)
  80
  81
  82 /* From the original Security extension...
  83  */
  84
  85 extern void XaceCensorImage(
  86     ClientPtr client,
  87     RegionPtr pVisibleRegion,
  88     long widthBytesLine,
  89     DrawablePtr pDraw,
  90     int x, int y, int w, int h,
  91     unsigned int format,
  92     char * pBuf
  93     );
  94
  95 #else /* XACE */
  96
  97 /* Define calls away when XACE is not being built. */
  98
  99 #ifdef __GNUC__
 100 #define XaceHook(args...) XaceAllowOperation
 101 #define XaceCensorImage(args...) { ; }
 102 #else
 103 #define XaceHook(...) XaceAllowOperation
 104 #define XaceCensorImage(...) { ; }
 105 #endif
 106
 107 #endif /* XACE */
 108
 109 #endif /* _XACE_H */