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xace: typesafe hook function for XACE_SCREENSAVER_ACCESS

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he generic XaceHook() call isn't typesafe (und unnecessarily slow).
Better add an explicit function, just like we already have for others.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1556>
(cherry picked from commit 305f2d59d8)
This commit is contained in:
Enrico Weigelt, metux IT consult 2024-05-17 15:33:21 +02:00 • committed by Alan Coopersmith
parent 4e4e6d6f42
commit f8c916019b
5 changed files with 14 additions and 17 deletions
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8
Xext/saver.c
View file

@ -645,8 +645,7 @@ ProcScreenSaverQueryInfo(ClientPtr client)
DixGetAttrAccess);
if (rc != Success)
return rc;
rc = XaceHook(XACE_SCREENSAVER_ACCESS, client, pDraw->pScreen,
DixGetAttrAccess);
rc = XaceHookScreensaverAccess(client, pDraw->pScreen, DixGetAttrAccess);
if (rc != Success)
return rc;
@ -715,8 +714,7 @@ ProcScreenSaverSelectInput(ClientPtr client)
if (rc != Success)
return rc;
rc = XaceHook(XACE_SCREENSAVER_ACCESS, client, pDraw->pScreen,
DixSetAttrAccess);
rc = XaceHookScreensaverAccess(client, pDraw->pScreen, DixSetAttrAccess);
if (rc != Success)
return rc;
@ -759,7 +757,7 @@ ScreenSaverSetAttributes(ClientPtr client)
pScreen = pDraw->pScreen;
pParent = pScreen->root;
ret = XaceHook(XACE_SCREENSAVER_ACCESS, client, pScreen, DixSetAttrAccess);
ret = XaceHookScreensaverAccess(client, pScreen, DixSetAttrAccess);
if (ret != Success)
return ret;

16
Xext/xace.c
View file

@ -123,13 +123,19 @@ int XaceHookScreenAccess(ClientPtr client, ScreenPtr screen, Mask access_mode)
return rec.status;
}
int XaceHookScreensaverAccess(ClientPtr client, ScreenPtr screen, Mask access_mode)
{
XaceScreenAccessRec rec = { client, screen, access_mode, Success };
CallCallbacks(&XaceHooks[XACE_SCREENSAVER_ACCESS], &rec);
return rec.status;
}
/* Entry point for hook functions. Called by Xserver.
*/
int
XaceHook(int hook, ...)
{
union {
XaceScreenAccessRec screen;
XaceAuthAvailRec auth;
XaceKeyAvailRec key;
} u;
@ -147,14 +153,6 @@ XaceHook(int hook, ...)
* sets calldata directly to a single argument (with no return result)
*/
switch (hook) {
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);

1
Xext/xace.h
View file

@ -94,6 +94,7 @@ int XaceHookClientAccess(ClientPtr client, ClientPtr target, Mask access_mode);
int XaceHookExtAccess(ClientPtr client, ExtensionEntry *ext);
int XaceHookServerAccess(ClientPtr client, Mask access_mode);
int XaceHookScreenAccess(ClientPtr client, ScreenPtr screen, Mask access_mode);
int XaceHookScreensaverAccess(ClientPtr client, ScreenPtr screen, Mask access_mode);
/* Register a callback for a given hook.

4
dix/dispatch.c
View file

@ -3165,7 +3165,7 @@ ProcSetScreenSaver(ClientPtr client)
REQUEST_SIZE_MATCH(xSetScreenSaverReq);
for (i = 0; i < screenInfo.numScreens; i++) {
rc = XaceHook(XACE_SCREENSAVER_ACCESS, client, screenInfo.screens[i],
rc = XaceHookScreensaverAccess(client, screenInfo.screens[i],
DixSetAttrAccess);
if (rc != Success)
return rc;
@ -3225,7 +3225,7 @@ ProcGetScreenSaver(ClientPtr client)
REQUEST_SIZE_MATCH(xReq);
for (i = 0; i < screenInfo.numScreens; i++) {
rc = XaceHook(XACE_SCREENSAVER_ACCESS, client, screenInfo.screens[i],
rc = XaceHookScreensaverAccess(client, screenInfo.screens[i],
DixGetAttrAccess);
if (rc != Success)
return rc;

2
dix/window.c
View file

@ -3111,7 +3111,7 @@ dixSaveScreens(ClientPtr client, int on, int mode)
}
for (i = 0; i < screenInfo.numScreens; i++) {
rc = XaceHook(XACE_SCREENSAVER_ACCESS, client, screenInfo.screens[i],
rc = XaceHookScreensaverAccess(client, screenInfo.screens[i],
DixShowAccess | DixHideAccess);
if (rc != Success)
return rc;