#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include <stdarg.h>
#include "scrnintstr.h"
#include "extnsionst.h"
#include "pixmapstr.h"
#include "regionstr.h"
#include "gcstruct.h"
#include "xacestr.h"
CallbackListPtr XaceHooks[XACE_NUM_HOOKS] = {0};
int XaceHookDispatch(ClientPtr client, int major)
{
XaceAuditRec rec = { client, 0 };
CallCallbacks(&XaceHooks[XACE_AUDIT_BEGIN], &rec);
if (major < 128) {
XaceCoreDispatchRec rec = { client, Success };
CallCallbacks(&XaceHooks[XACE_CORE_DISPATCH], &rec);
return rec.status;
} else {
ExtensionEntry *ext = GetExtensionEntry(major);
XaceExtAccessRec rec = { client, ext, DixUseAccess, Success };
if (ext)
CallCallbacks(&XaceHooks[XACE_EXT_DISPATCH], &rec);
return (rec.status == Success) ? Success : BadRequest;
}
}
int XaceHookPropertyAccess(ClientPtr client, WindowPtr pWin,
PropertyPtr *ppProp, Mask access_mode)
{
XacePropertyAccessRec rec = { client, pWin, ppProp, access_mode, Success };
CallCallbacks(&XaceHooks[XACE_PROPERTY_ACCESS], &rec);
return rec.status;
}
int XaceHookSelectionAccess(ClientPtr client,
Selection **ppSel, Mask access_mode)
{
XaceSelectionAccessRec rec = { client, ppSel, access_mode, Success };
CallCallbacks(&XaceHooks[XACE_SELECTION_ACCESS], &rec);
return rec.status;
}
void XaceHookAuditEnd(ClientPtr ptr, int result)
{
XaceAuditRec rec = { ptr, result };
CallCallbacks(&XaceHooks[XACE_AUDIT_END], &rec);
}
int XaceHook(int hook, ...)
{
pointer calldata;
int *prv = NULL;
va_list ap;
va_start(ap, hook);
switch (hook)
{
case XACE_RESOURCE_ACCESS: {
XaceResourceAccessRec rec = {
va_arg(ap, ClientPtr),
va_arg(ap, XID),
va_arg(ap, RESTYPE),
va_arg(ap, pointer),
va_arg(ap, RESTYPE),
va_arg(ap, pointer),
va_arg(ap, Mask),
Success
};
calldata = &rec;
prv = &rec.status;
break;
}
case XACE_DEVICE_ACCESS: {
XaceDeviceAccessRec rec = {
va_arg(ap, ClientPtr),
va_arg(ap, DeviceIntPtr),
va_arg(ap, Mask),
Success
};
calldata = &rec;
prv = &rec.status;
break;
}
case XACE_SEND_ACCESS: {
XaceSendAccessRec rec = {
va_arg(ap, ClientPtr),
va_arg(ap, DeviceIntPtr),
va_arg(ap, WindowPtr),
va_arg(ap, xEventPtr),
va_arg(ap, int),
Success
};
calldata = &rec;
prv = &rec.status;
break;
}
case XACE_RECEIVE_ACCESS: {
XaceReceiveAccessRec rec = {
va_arg(ap, ClientPtr),
va_arg(ap, WindowPtr),
va_arg(ap, xEventPtr),
va_arg(ap, int),
Success
};
calldata = &rec;
prv = &rec.status;
break;
}
case XACE_CLIENT_ACCESS: {
XaceClientAccessRec rec = {
va_arg(ap, ClientPtr),
va_arg(ap, ClientPtr),
va_arg(ap, Mask),
Success
};
calldata = &rec;
prv = &rec.status;
break;
}
case XACE_EXT_ACCESS: {
XaceExtAccessRec rec = {
va_arg(ap, ClientPtr),
va_arg(ap, ExtensionEntry*),
DixGetAttrAccess,
Success
};
calldata = &rec;
prv = &rec.status;
break;
}
case XACE_SERVER_ACCESS: {
XaceServerAccessRec rec = {
va_arg(ap, ClientPtr),
va_arg(ap, Mask),
Success
};
calldata = &rec;
prv = &rec.status;
break;
}
case XACE_SCREEN_ACCESS:
case XACE_SCREENSAVER_ACCESS: {
XaceScreenAccessRec rec = {
va_arg(ap, ClientPtr),
va_arg(ap, ScreenPtr),
va_arg(ap, Mask),
Success
};
calldata = &rec;
prv = &rec.status;
break;
}
case XACE_AUTH_AVAIL: {
XaceAuthAvailRec rec = {
va_arg(ap, ClientPtr),
va_arg(ap, XID)
};
calldata = &rec;
break;
}
case XACE_KEY_AVAIL: {
XaceKeyAvailRec rec = {
va_arg(ap, xEventPtr),
va_arg(ap, DeviceIntPtr),
va_arg(ap, int)
};
calldata = &rec;
break;
}
default: {
va_end(ap);
return 0;
}
}
va_end(ap);
CallCallbacks(&XaceHooks[hook], calldata);
return prv ? *prv : Success;
}
void
XaceCensorImage(client, pVisibleRegion, widthBytesLine, pDraw, x, y, w, h,
format, pBuf)
ClientPtr client;
RegionPtr pVisibleRegion;
long widthBytesLine;
DrawablePtr pDraw;
int x, y, w, h;
unsigned int format;
char * pBuf;
{
ScreenPtr pScreen;
RegionRec imageRegion;
RegionRec censorRegion;
BoxRec imageBox;
int nRects;
pScreen = pDraw->pScreen;
imageBox.x1 = x;
imageBox.y1 = y;
imageBox.x2 = x + w;
imageBox.y2 = y + h;
REGION_INIT(pScreen, &imageRegion, &imageBox, 1);
REGION_NULL(pScreen, &censorRegion);
REGION_SUBTRACT(pScreen, &censorRegion, &imageRegion, pVisibleRegion);
nRects = REGION_NUM_RECTS(&censorRegion);
if (nRects > 0)
{
GCPtr pScratchGC = NULL;
PixmapPtr pPix = NULL;
xRectangle *pRects = NULL;
Bool failed = FALSE;
int depth = 1;
int bitsPerPixel = 1;
int i;
BoxPtr pBox;
pRects = (xRectangle *)xalloc(nRects * sizeof(xRectangle));
if (!pRects)
{
failed = TRUE;
goto failSafe;
}
for (pBox = REGION_RECTS(&censorRegion), i = 0;
i < nRects;
i++, pBox++)
{
pRects[i].x = pBox->x1;
pRects[i].y = pBox->y1 - imageBox.y1;
pRects[i].width = pBox->x2 - pBox->x1;
pRects[i].height = pBox->y2 - pBox->y1;
}
if (format == ZPixmap)
{
depth = pDraw->depth;
bitsPerPixel = pDraw->bitsPerPixel;
}
pPix = GetScratchPixmapHeader(pDraw->pScreen, w, h,
depth, bitsPerPixel,
widthBytesLine, (pointer)pBuf);
if (!pPix)
{
failed = TRUE;
goto failSafe;
}
pScratchGC = GetScratchGC(depth, pPix->drawable.pScreen);
if (!pScratchGC)
{
failed = TRUE;
goto failSafe;
}
ValidateGC(&pPix->drawable, pScratchGC);
(* pScratchGC->ops->PolyFillRect)(&pPix->drawable,
pScratchGC, nRects, pRects);
failSafe:
if (failed)
{
bzero(pBuf, (int)(widthBytesLine * h));
}
if (pRects) xfree(pRects);
if (pScratchGC) FreeScratchGC(pScratchGC);
if (pPix) FreeScratchPixmapHeader(pPix);
}
REGION_UNINIT(pScreen, &imageRegion);
REGION_UNINIT(pScreen, &censorRegion);
}