54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
#define HOOK_NAME "send"
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#include <dix-config.h>
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#include "dix/registry_priv.h"
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#include "dix/resource_priv.h"
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#include "Xext/xacestr.h"
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#include "namespace.h"
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#include "hooks.h"
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/* TRUE if subj client is allowed to do things on obj)
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* usually if they're in the same namespace or subj is in a parent
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* namespace of obj
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*/
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static Bool clientAllowedOnClient(ClientPtr subj, ClientPtr obj) {
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struct XnamespaceClientPriv *subjPriv = XnsClientPriv(subj);
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struct XnamespaceClientPriv *objPriv = XnsClientPriv(obj);
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if (subjPriv && subjPriv->ns->superPower)
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return TRUE;
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return XnsClientSameNS(subjPriv, objPriv);
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}
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void hookSend(CallbackListPtr *pcbl, void *unused, void *calldata)
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{
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XNS_HOOK_HEAD(XaceSendAccessRec);
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/* if no sending client, then it's coming internally from the server itself */
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if (!client)
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goto pass;
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ClientPtr targetClient = dixClientForWindow(param->pWin);
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struct XnamespaceClientPriv *obj = XnsClientPriv(targetClient);
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if (clientAllowedOnClient(client, targetClient))
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goto pass;
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XNS_HOOK_LOG("BLOCK target @ %s\n", obj->ns->name);
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for (int i = 0; i < param->count; i++) {
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XNS_HOOK_LOG("sending event of type %s to window 0x%lx of client %d\n",
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LookupEventName(param->events[i].u.u.type),
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(unsigned long)param->pWin->drawable.id,
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targetClient->index);
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}
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param->status = BadAccess;
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return;
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pass:
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param->status = Success;
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return;
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}
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