VBoxGuestR3LibGR.cpp revision 907c8dd510a4e6819993788ac137de72813644f0
/* $Id$ */
/** @file
* VBoxGuestR3Lib - Ring-3 Support Library for VirtualBox guest additions, GR.
*/
/*
* Copyright (C) 2007 innotek GmbH
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#include <iprt/mem.h>
#include <iprt/assert.h>
#include <iprt/string.h>
#include <iprt/err.h>
#include <VBox/VBoxGuest.h>
#include "VBGLR3Internal.h"
int VbglR3GRAlloc(VMMDevRequestHeader **ppReq, uint32_t cb, VMMDevRequestType enmReqType)
{
VMMDevRequestHeader *pReq;
AssertPtrReturn(ppReq, VERR_INVALID_PARAMETER);
AssertMsgReturn(cb >= sizeof(VMMDevRequestHeader), ("%#x vs %#zx\n", cb, sizeof(VMMDevRequestHeader)),
VERR_INVALID_PARAMETER);
pReq = (VMMDevRequestHeader *)RTMemTmpAlloc(cb);
if (RT_UNLIKELY(!pReq))
return VERR_NO_MEMORY;
pReq->size = cb;
pReq->version = VMMDEV_REQUEST_HEADER_VERSION;
pReq->requestType = enmReqType;
pReq->rc = VERR_GENERAL_FAILURE;
pReq->reserved1 = 0;
pReq->reserved2 = 0;
*ppReq = pReq;
return VINF_SUCCESS;
}
VBGLR3DECL(int) VbglR3GRPerform(VMMDevRequestHeader *pReq)
{
return VbglR3DoIOCtl(VBOXGUEST_IOCTL_VMMREQUEST(pReq->size), pReq, pReq->size);
}
void VbglR3GRFree(VMMDevRequestHeader *pReq)
{
RTMemTmpFree(pReq);
}