53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
#define HOOK_NAME "windowproperty"
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#include <dix-config.h>
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#include <X11/Xmd.h>
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#include "dix/dix_priv.h"
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#include "dix/property_priv.h"
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#include "dix/window_priv.h"
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#include "namespace.h"
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#include "hooks.h"
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static inline Bool winIsRoot(WindowPtr pWin) {
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if (!pWin)
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return FALSE;
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if (pWin->drawable.pScreen->root == pWin)
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return TRUE;
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return FALSE;
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}
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void hookWindowProperty(CallbackListPtr *pcbl, void *unused, void *calldata)
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{
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XNS_HOOK_HEAD(PropertyFilterParam);
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// no redirect on super power
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if (subj->ns->superPower)
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return;
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const ClientPtr owner = dixLookupXIDOwner(param->window);
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if (!owner) {
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param->status = BadWindow;
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param->skip = TRUE;
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XNS_HOOK_LOG("owner of window 0x%0x doesn't exist\n", param->window);
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return;
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}
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// whitelist anything that goes to caller's own namespace
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struct XnamespaceClientPriv *obj = XnsClientPriv(owner);
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if (XnsClientSameNS(subj, obj))
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return;
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// allow access to namespace virtual root
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if (param->window == subj->ns->rootWindow->drawable.id)
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return;
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// redirect root window access to namespace's virtual root
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if (dixWindowIsRoot(param->window)) {
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param->window = subj->ns->rootWindow->drawable.id;
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return;
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}
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}
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