VirtualBox

source: vbox/trunk/src/VBox/Additions/common/VBoxGuestLib/VBoxGuestR3LibGR.cpp@ 38114

Last change on this file since 38114 was 28800, checked in by vboxsync, 15 years ago

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File size: 2.3 KB
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1/* $Id: VBoxGuestR3LibGR.cpp 28800 2010-04-27 08:22:32Z vboxsync $ */
2/** @file
3 * VBoxGuestR3Lib - Ring-3 Support Library for VirtualBox guest additions, GR.
4 */
5
6/*
7 * Copyright (C) 2007 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 *
17 * The contents of this file may alternatively be used under the terms
18 * of the Common Development and Distribution License Version 1.0
19 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20 * VirtualBox OSE distribution, in which case the provisions of the
21 * CDDL are applicable instead of those of the GPL.
22 *
23 * You may elect to license modified versions of this file under the
24 * terms and conditions of either the GPL or the CDDL or both.
25 */
26
27
28/*******************************************************************************
29* Header Files *
30*******************************************************************************/
31#include <iprt/mem.h>
32#include <iprt/assert.h>
33#include <iprt/string.h>
34#include <iprt/err.h>
35#include "VBGLR3Internal.h"
36
37
38int vbglR3GRAlloc(VMMDevRequestHeader **ppReq, uint32_t cb, VMMDevRequestType enmReqType)
39{
40 VMMDevRequestHeader *pReq;
41
42 AssertPtrReturn(ppReq, VERR_INVALID_PARAMETER);
43 AssertMsgReturn(cb >= sizeof(VMMDevRequestHeader), ("%#x vs %#zx\n", cb, sizeof(VMMDevRequestHeader)),
44 VERR_INVALID_PARAMETER);
45
46 pReq = (VMMDevRequestHeader *)RTMemTmpAlloc(cb);
47 if (RT_UNLIKELY(!pReq))
48 return VERR_NO_MEMORY;
49
50 pReq->size = cb;
51 pReq->version = VMMDEV_REQUEST_HEADER_VERSION;
52 pReq->requestType = enmReqType;
53 pReq->rc = VERR_GENERAL_FAILURE;
54 pReq->reserved1 = 0;
55 pReq->reserved2 = 0;
56
57 *ppReq = pReq;
58
59 return VINF_SUCCESS;
60}
61
62
63VBGLR3DECL(int) vbglR3GRPerform(VMMDevRequestHeader *pReq)
64{
65 return vbglR3DoIOCtl(VBOXGUEST_IOCTL_VMMREQUEST(pReq->size), pReq, pReq->size);
66}
67
68
69void vbglR3GRFree(VMMDevRequestHeader *pReq)
70{
71 RTMemTmpFree(pReq);
72}
73
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