1 /************************************************************ 2 3 Author: Eamon Walsh <ewalsh@tycho.nsa.gov> 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 #ifdef XACE 24 25 #define XACE_MAJOR_VERSION 2 26 #define XACE_MINOR_VERSION 0 27 28 #include "pixmap.h" 29 #include "region.h" 30 #include "window.h" 31 #include "property.h" 32 #include "selection.h" 33 34 /* Default window background */ 35 #define XaceBackgroundNoneState(w) ((w)->forcedBG ? BackgroundPixel : None) 36 37 /* security hooks */ 38 /* Constants used to identify the available security hooks 39 */ 40 #define XACE_CORE_DISPATCH 0 41 #define XACE_EXT_DISPATCH 1 42 #define XACE_RESOURCE_ACCESS 2 43 #define XACE_DEVICE_ACCESS 3 44 #define XACE_PROPERTY_ACCESS 4 45 #define XACE_SEND_ACCESS 5 46 #define XACE_RECEIVE_ACCESS 6 47 #define XACE_CLIENT_ACCESS 7 48 #define XACE_EXT_ACCESS 8 49 #define XACE_SERVER_ACCESS 9 50 #define XACE_SELECTION_ACCESS 10 51 #define XACE_SCREEN_ACCESS 11 52 #define XACE_SCREENSAVER_ACCESS 12 53 #define XACE_AUTH_AVAIL 13 54 #define XACE_KEY_AVAIL 14 55 #define XACE_NUM_HOOKS 15 56 57 extern _X_EXPORT CallbackListPtr XaceHooks[XACE_NUM_HOOKS]; 58 59 /* Entry point for hook functions. Called by Xserver. 60 * Required by libdbe and libextmod 61 */ 62 extern _X_EXPORT int XaceHook(int /*hook */ , 63 ... /*appropriate args for hook */ 64 ); 65 66 /* determine whether any callbacks are present for the XACE hook */ 67 extern _X_EXPORT int XaceHookIsSet(int hook); 68 69 /* Special-cased hook functions 70 */ 71 extern _X_EXPORT int XaceHookDispatch(ClientPtr ptr, int major); 72 #define XaceHookDispatch(c, m) \ 73 ((XaceHooks[XACE_EXT_DISPATCH] && (m) >= EXTENSION_BASE) ? \ 74 XaceHookDispatch((c), (m)) : \ 75 Success) 76 77 extern _X_EXPORT int XaceHookPropertyAccess(ClientPtr ptr, WindowPtr pWin, 78 PropertyPtr *ppProp, 79 Mask access_mode); 80 extern _X_EXPORT int XaceHookSelectionAccess(ClientPtr ptr, Selection ** ppSel, 81 Mask access_mode); 82 83 /* Register a callback for a given hook. 84 */ 85 #define XaceRegisterCallback(hook,callback,data) \ 86 AddCallback(XaceHooks+(hook), callback, data) 87 88 /* Unregister an existing callback for a given hook. 89 */ 90 #define XaceDeleteCallback(hook,callback,data) \ 91 DeleteCallback(XaceHooks+(hook), callback, data) 92 93 /* XTrans wrappers for use by security modules 94 */ 95 extern _X_EXPORT int XaceGetConnectionNumber(ClientPtr ptr); 96 extern _X_EXPORT int XaceIsLocal(ClientPtr ptr); 97 98 /* From the original Security extension... 99 */ 100 101 extern _X_EXPORT void XaceCensorImage(ClientPtr client, 102 RegionPtr pVisibleRegion, 103 long widthBytesLine, 104 DrawablePtr pDraw, 105 int x, int y, int w, int h, 106 unsigned int format, char *pBuf); 107 108 #else /* XACE */ 109 110 /* Default window background */ 111 #define XaceBackgroundNoneState(w) None 112 113 /* Define calls away when XACE is not being built. */ 114 115 #ifdef __GNUC__ 116 #define XaceHook(args...) Success 117 #define XaceHookIsSet(args...) 0 118 #define XaceHookDispatch(args...) Success 119 #define XaceHookPropertyAccess(args...) Success 120 #define XaceHookSelectionAccess(args...) Success 121 #define XaceCensorImage(args...) { ; } 122 #else 123 #define XaceHook(...) Success 124 #define XaceHookIsSet(...) 0 125 #define XaceHookDispatch(...) Success 126 #define XaceHookPropertyAccess(...) Success 127 #define XaceHookSelectionAccess(...) Success 128 #define XaceCensorImage(...) { ; } 129 #endif 130 131 #endif /* XACE */ 132 133 #endif /* _XACE_H */ 134