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Diffstat (limited to 'xorg-server/Xext/xace.c')
-rw-r--r--xorg-server/Xext/xace.c398
1 files changed, 204 insertions, 194 deletions
diff --git a/xorg-server/Xext/xace.c b/xorg-server/Xext/xace.c
index 69cb2bbdb..b4884fb6e 100644
--- a/xorg-server/Xext/xace.c
+++ b/xorg-server/Xext/xace.c
@@ -36,49 +36,53 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include <X11/Xtrans/Xtrans.h>
#include "../os/osdep.h"
-_X_EXPORT CallbackListPtr XaceHooks[XACE_NUM_HOOKS] = {0};
+_X_EXPORT CallbackListPtr XaceHooks[XACE_NUM_HOOKS] = { 0 };
/* Special-cased hook functions. Called by Xserver.
*/
-int XaceHookDispatch(ClientPtr client, int major)
+int
+XaceHookDispatch(ClientPtr client, int major)
{
/* Call the audit begin callback, there is no return value. */
XaceAuditRec rec = { client, 0 };
CallCallbacks(&XaceHooks[XACE_AUDIT_BEGIN], &rec);
if (major < 128) {
- /* Call the core dispatch hook */
- XaceCoreDispatchRec rec = { client, Success /* default allow */ };
- CallCallbacks(&XaceHooks[XACE_CORE_DISPATCH], &rec);
- return rec.status;
- } else {
- /* Call the extension dispatch hook */
- ExtensionEntry *ext = GetExtensionEntry(major);
- XaceExtAccessRec rec = { client, ext, DixUseAccess, Success };
- if (ext)
- CallCallbacks(&XaceHooks[XACE_EXT_DISPATCH], &rec);
- /* On error, pretend extension doesn't exist */
- return (rec.status == Success) ? Success : BadRequest;
+ /* Call the core dispatch hook */
+ XaceCoreDispatchRec rec = { client, Success /* default allow */ };
+ CallCallbacks(&XaceHooks[XACE_CORE_DISPATCH], &rec);
+ return rec.status;
+ }
+ else {
+ /* Call the extension dispatch hook */
+ ExtensionEntry *ext = GetExtensionEntry(major);
+ XaceExtAccessRec rec = { client, ext, DixUseAccess, Success };
+ if (ext)
+ CallCallbacks(&XaceHooks[XACE_EXT_DISPATCH], &rec);
+ /* On error, pretend extension doesn't exist */
+ return (rec.status == Success) ? Success : BadRequest;
}
}
-int XaceHookPropertyAccess(ClientPtr client, WindowPtr pWin,
- PropertyPtr *ppProp, Mask access_mode)
+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)
+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)
+void
+XaceHookAuditEnd(ClientPtr ptr, int result)
{
XaceAuditRec rec = { ptr, result };
/* call callbacks, there is no return value. */
@@ -87,25 +91,26 @@ void XaceHookAuditEnd(ClientPtr ptr, int result)
/* Entry point for hook functions. Called by Xserver.
*/
-int XaceHook(int hook, ...)
+int
+XaceHook(int hook, ...)
{
union {
- XaceResourceAccessRec res;
- XaceDeviceAccessRec dev;
- XaceSendAccessRec send;
- XaceReceiveAccessRec recv;
- XaceClientAccessRec client;
- XaceExtAccessRec ext;
- XaceServerAccessRec server;
- XaceScreenAccessRec screen;
- XaceAuthAvailRec auth;
- XaceKeyAvailRec key;
+ XaceResourceAccessRec res;
+ XaceDeviceAccessRec dev;
+ XaceSendAccessRec send;
+ XaceReceiveAccessRec recv;
+ XaceClientAccessRec client;
+ XaceExtAccessRec ext;
+ XaceServerAccessRec server;
+ XaceScreenAccessRec screen;
+ XaceAuthAvailRec auth;
+ XaceKeyAvailRec key;
} u;
- int *prv = NULL; /* points to return value from callback */
- va_list ap; /* argument list */
+ int *prv = NULL; /* points to return value from callback */
+ va_list ap; /* argument list */
if (!XaceHooks[hook])
- return Success;
+ return Success;
va_start(ap, hook);
@@ -114,86 +119,97 @@ int XaceHook(int hook, ...)
* the arguments and integer return parameter, or in some cases just
* sets calldata directly to a single argument (with no return result)
*/
- switch (hook)
- {
- case XACE_RESOURCE_ACCESS:
- u.res.client = va_arg(ap, ClientPtr);
- u.res.id = va_arg(ap, XID);
- u.res.rtype = va_arg(ap, RESTYPE);
- u.res.res = va_arg(ap, pointer);
- u.res.ptype = va_arg(ap, RESTYPE);
- u.res.parent = va_arg(ap, pointer);
- u.res.access_mode = va_arg(ap, Mask);
- u.res.status = Success; /* default allow */
- prv = &u.res.status;
- break;
- case XACE_DEVICE_ACCESS:
- u.dev.client = va_arg(ap, ClientPtr);
- u.dev.dev = va_arg(ap, DeviceIntPtr);
- u.dev.access_mode = va_arg(ap, Mask);
- u.dev.status = Success; /* default allow */
- prv = &u.dev.status;
- break;
- case XACE_SEND_ACCESS:
- u.send.client = va_arg(ap, ClientPtr);
- u.send.dev = va_arg(ap, DeviceIntPtr);
- u.send.pWin = va_arg(ap, WindowPtr);
- u.send.events = va_arg(ap, xEventPtr);
- u.send.count = va_arg(ap, int);
- u.send.status = Success; /* default allow */
- prv = &u.send.status;
- break;
- case XACE_RECEIVE_ACCESS:
- u.recv.client = va_arg(ap, ClientPtr);
- u.recv.pWin = va_arg(ap, WindowPtr);
- u.recv.events = va_arg(ap, xEventPtr);
- u.recv.count = va_arg(ap, int);
- u.recv.status = Success; /* default allow */
- prv = &u.recv.status;
- break;
- case XACE_CLIENT_ACCESS:
- u.client.client = va_arg(ap, ClientPtr);
- u.client.target = va_arg(ap, ClientPtr);
- u.client.access_mode = va_arg(ap, Mask);
- u.client.status = Success; /* default allow */
- prv = &u.client.status;
- break;
- case XACE_EXT_ACCESS:
- u.ext.client = va_arg(ap, ClientPtr);
- u.ext.ext = va_arg(ap, ExtensionEntry*);
- u.ext.access_mode = DixGetAttrAccess;
- u.ext.status = Success; /* default allow */
- prv = &u.ext.status;
- break;
- case XACE_SERVER_ACCESS:
- u.server.client = va_arg(ap, ClientPtr);
- u.server.access_mode = va_arg(ap, Mask);
- u.server.status = Success; /* default allow */
- prv = &u.server.status;
- break;
- case XACE_SCREEN_ACCESS:
- case XACE_SCREENSAVER_ACCESS:
- u.screen.client = va_arg(ap, ClientPtr);
- u.screen.screen = va_arg(ap, ScreenPtr);
- u.screen.access_mode = va_arg(ap, Mask);
- u.screen.status = Success; /* default allow */
- prv = &u.screen.status;
- break;
- case XACE_AUTH_AVAIL:
- u.auth.client = va_arg(ap, ClientPtr);
- u.auth.authId = va_arg(ap, XID);
- break;
- case XACE_KEY_AVAIL:
- u.key.event = va_arg(ap, xEventPtr);
- u.key.keybd = va_arg(ap, DeviceIntPtr);
- u.key.count = va_arg(ap, int);
- break;
- default:
- va_end(ap);
- return 0; /* unimplemented hook number */
+ switch (hook) {
+ case XACE_RESOURCE_ACCESS:
+ u.res.client = va_arg(ap, ClientPtr);
+ u.res.id = va_arg(ap, XID);
+ u.res.rtype = va_arg(ap, RESTYPE);
+ u.res.res = va_arg(ap, pointer);
+ u.res.ptype = va_arg(ap, RESTYPE);
+ u.res.parent = va_arg(ap, pointer);
+ u.res.access_mode = va_arg(ap, Mask);
+
+ u.res.status = Success; /* default allow */
+ prv = &u.res.status;
+ break;
+ case XACE_DEVICE_ACCESS:
+ u.dev.client = va_arg(ap, ClientPtr);
+ u.dev.dev = va_arg(ap, DeviceIntPtr);
+ u.dev.access_mode = va_arg(ap, Mask);
+
+ u.dev.status = Success; /* default allow */
+ prv = &u.dev.status;
+ break;
+ case XACE_SEND_ACCESS:
+ u.send.client = va_arg(ap, ClientPtr);
+ u.send.dev = va_arg(ap, DeviceIntPtr);
+ u.send.pWin = va_arg(ap, WindowPtr);
+
+ u.send.events = va_arg(ap, xEventPtr);
+ u.send.count = va_arg(ap, int);
+
+ u.send.status = Success; /* default allow */
+ prv = &u.send.status;
+ break;
+ case XACE_RECEIVE_ACCESS:
+ u.recv.client = va_arg(ap, ClientPtr);
+ u.recv.pWin = va_arg(ap, WindowPtr);
+
+ u.recv.events = va_arg(ap, xEventPtr);
+ u.recv.count = va_arg(ap, int);
+
+ u.recv.status = Success; /* default allow */
+ prv = &u.recv.status;
+ break;
+ case XACE_CLIENT_ACCESS:
+ u.client.client = va_arg(ap, ClientPtr);
+ u.client.target = va_arg(ap, ClientPtr);
+ u.client.access_mode = va_arg(ap, Mask);
+
+ u.client.status = Success; /* default allow */
+ prv = &u.client.status;
+ break;
+ case XACE_EXT_ACCESS:
+ u.ext.client = va_arg(ap, ClientPtr);
+
+ u.ext.ext = va_arg(ap, ExtensionEntry *);
+ u.ext.access_mode = DixGetAttrAccess;
+ u.ext.status = Success; /* default allow */
+ prv = &u.ext.status;
+ break;
+ case XACE_SERVER_ACCESS:
+ u.server.client = va_arg(ap, ClientPtr);
+ u.server.access_mode = va_arg(ap, Mask);
+
+ u.server.status = Success; /* default allow */
+ prv = &u.server.status;
+ break;
+ case XACE_SCREEN_ACCESS:
+ case XACE_SCREENSAVER_ACCESS:
+ u.screen.client = va_arg(ap, ClientPtr);
+ u.screen.screen = va_arg(ap, ScreenPtr);
+ u.screen.access_mode = va_arg(ap, Mask);
+
+ u.screen.status = Success; /* default allow */
+ prv = &u.screen.status;
+ break;
+ case XACE_AUTH_AVAIL:
+ u.auth.client = va_arg(ap, ClientPtr);
+ u.auth.authId = va_arg(ap, XID);
+
+ break;
+ case XACE_KEY_AVAIL:
+ u.key.event = va_arg(ap, xEventPtr);
+ u.key.keybd = va_arg(ap, DeviceIntPtr);
+ u.key.count = va_arg(ap, int);
+
+ break;
+ default:
+ va_end(ap);
+ return 0; /* unimplemented hook number */
}
va_end(ap);
-
+
/* call callbacks and return result, if any. */
CallCallbacks(&XaceHooks[hook], &u);
return prv ? *prv : Success;
@@ -220,17 +236,14 @@ int XaceHook(int hook, ...)
* region of the window will be destroyed (overwritten) in pBuf.
*/
void
-XaceCensorImage(
- ClientPtr client,
- RegionPtr pVisibleRegion,
- long widthBytesLine,
- DrawablePtr pDraw,
- int x, int y, int w, int h,
- unsigned int format,
- char *pBuf)
+XaceCensorImage(ClientPtr client,
+ RegionPtr pVisibleRegion,
+ long widthBytesLine,
+ DrawablePtr pDraw,
+ int x, int y, int w, int h, unsigned int format, char *pBuf)
{
- RegionRec imageRegion; /* region representing x,y,w,h */
- RegionRec censorRegion; /* region to obliterate */
+ RegionRec imageRegion; /* region representing x,y,w,h */
+ RegionRec censorRegion; /* region to obliterate */
BoxRec imageBox;
int nRects;
@@ -244,90 +257,87 @@ XaceCensorImage(
/* censorRegion = imageRegion - visibleRegion */
RegionSubtract(&censorRegion, &imageRegion, pVisibleRegion);
nRects = RegionNumRects(&censorRegion);
- if (nRects > 0)
- { /* we have something to censor */
- GCPtr pScratchGC = NULL;
- PixmapPtr pPix = NULL;
- xRectangle *pRects = NULL;
- Bool failed = FALSE;
- int depth = 1;
- int bitsPerPixel = 1;
- int i;
- BoxPtr pBox;
-
- /* convert region to list-of-rectangles for PolyFillRect */
-
- pRects = malloc(nRects * sizeof(xRectangle));
- if (!pRects)
- {
- failed = TRUE;
- goto failSafe;
- }
- for (pBox = RegionRects(&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;
- }
-
- /* use pBuf as a fake pixmap */
-
- 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)
- {
- /* Censoring was not completed above. To be safe, wipe out
- * all the image data so that nothing trusted gets out.
- */
- memset(pBuf, 0, (int)(widthBytesLine * h));
- }
- free(pRects);
- if (pScratchGC) FreeScratchGC(pScratchGC);
- if (pPix) FreeScratchPixmapHeader(pPix);
+ if (nRects > 0) { /* we have something to censor */
+ GCPtr pScratchGC = NULL;
+ PixmapPtr pPix = NULL;
+ xRectangle *pRects = NULL;
+ Bool failed = FALSE;
+ int depth = 1;
+ int bitsPerPixel = 1;
+ int i;
+ BoxPtr pBox;
+
+ /* convert region to list-of-rectangles for PolyFillRect */
+
+ pRects = malloc(nRects * sizeof(xRectangle));
+ if (!pRects) {
+ failed = TRUE;
+ goto failSafe;
+ }
+ for (pBox = RegionRects(&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;
+ }
+
+ /* use pBuf as a fake pixmap */
+
+ 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) {
+ /* Censoring was not completed above. To be safe, wipe out
+ * all the image data so that nothing trusted gets out.
+ */
+ memset(pBuf, 0, (int) (widthBytesLine * h));
+ }
+ free(pRects);
+ if (pScratchGC)
+ FreeScratchGC(pScratchGC);
+ if (pPix)
+ FreeScratchPixmapHeader(pPix);
}
RegionUninit(&imageRegion);
RegionUninit(&censorRegion);
-} /* XaceCensorImage */
+} /* XaceCensorImage */
/*
* Xtrans wrappers for use by modules
*/
-int XaceGetConnectionNumber(ClientPtr client)
+int
+XaceGetConnectionNumber(ClientPtr client)
{
- XtransConnInfo ci = ((OsCommPtr)client->osPrivate)->trans_conn;
+ XtransConnInfo ci = ((OsCommPtr) client->osPrivate)->trans_conn;
+
return _XSERVTransGetConnectionNumber(ci);
}
-int XaceIsLocal(ClientPtr client)
+int
+XaceIsLocal(ClientPtr client)
{
- XtransConnInfo ci = ((OsCommPtr)client->osPrivate)->trans_conn;
+ XtransConnInfo ci = ((OsCommPtr) client->osPrivate)->trans_conn;
+
return _XSERVTransIsLocal(ci);
}