| 1 | /* $Id: VBoxGuestR0LibIdc-os2.cpp 68550 2017-08-31 12:09:41Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VBoxGuestLib - Ring-0 Support Library for VBoxGuest, IDC, OS/2 specific.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2008-2017 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 |
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| 28 | /*********************************************************************************************************************************
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| 29 | * Header Files *
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| 30 | *********************************************************************************************************************************/
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| 31 | #include "VBoxGuestR0LibInternal.h"
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| 32 | #include <VBox/VBoxGuest.h>
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| 33 | #include <VBox/err.h>
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| 34 | #include <VBox/log.h>
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| 35 |
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| 36 |
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| 37 | /*********************************************************************************************************************************
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| 38 | * Global Variables *
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| 39 | *********************************************************************************************************************************/
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| 40 | /* This is defined in some assembly file. The AttachDD operation
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| 41 | is done in the driver init code. */
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| 42 | extern VBOXGUESTOS2IDCCONNECT g_VBoxGuestIDC;
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| 43 |
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| 44 |
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| 45 |
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| 46 | int VBOXCALL vbglR0IdcNativeOpen(PVBGLIDCHANDLE pHandle, PVBGLIOCIDCCONNECT pReq)
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| 47 | {
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| 48 | /*
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| 49 | * Just check whether the connection was made or not.
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| 50 | */
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| 51 | if ( g_VBoxGuestIDC.u32Version == VMMDEV_VERSION
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| 52 | && RT_VALID_PTR(g_VBoxGuestIDC.u32Session)
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| 53 | && RT_VALID_PTR(g_VBoxGuestIDC.pfnServiceEP))
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| 54 | {
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| 55 | pHandle->s.pvSession = (void *)g_VBoxGuestIDC.u32Session;
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| 56 | return vbglR0IdcNativeCall(pHandle, VBGL_IOCTL_IDC_CONNECT, pReq);
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| 57 | }
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| 58 | pHandle->s.pvSession = NULL;
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| 59 | Log(("vbglDriverOpen: failed\n"));
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| 60 | return VERR_FILE_NOT_FOUND;
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| 61 | }
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| 62 |
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| 63 |
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| 64 | int VBOXCALL vbglR0IdcNativeClose(PVBGLIDCHANDLE pHandle, PVBGLIOCIDCDISCONNECT pReq)
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| 65 | {
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| 66 | return vbglR0IdcNativeCall(pHandle, VBGL_IOCTL_IDC_DISCONNECT, &pReq->Hdr);
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| 67 | }
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| 68 |
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| 69 |
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| 70 | /**
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| 71 | * Makes an IDC call, returning only the I/O control status code.
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| 72 | *
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| 73 | * @returns VBox status code (the I/O control failure status).
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| 74 | * @param pHandle The IDC handle.
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| 75 | * @param uReq The request number.
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| 76 | * @param pReqHdr The request header.
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| 77 | * @param cbReq The request size.
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| 78 | */
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| 79 | DECLR0VBGL(int) VbglR0IdcCallRaw(PVBGLIDCHANDLE pHandle, size_t uReq, PVBGLREQHDR pReqHdr, uint32_t cbReq)
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| 80 | {
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| 81 | size_t cbRetIgn;
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| 82 | return g_VBoxGuestIDC.pfnServiceEP((uintptr_t)pHandle->s.pvSession, uReq, pReqHdr, cbReq, &cbRetIgn);
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| 83 | }
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| 84 |
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