| 1 | /* $Id: VBoxGuestR0LibIdc-os2.cpp 96407 2022-08-22 17:43:14Z 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) 2008-2022 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * Permission is hereby granted, free of charge, to any person
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| 10 | * obtaining a copy of this software and associated documentation
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| 11 | * files (the "Software"), to deal in the Software without
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| 12 | * restriction, including without limitation the rights to use,
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| 13 | * copy, modify, merge, publish, distribute, sublicense, and/or sell
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| 14 | * copies of the Software, and to permit persons to whom the
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| 15 | * Software is furnished to do so, subject to the following
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| 16 | * conditions:
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| 17 | *
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| 18 | * The above copyright notice and this permission notice shall be
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| 19 | * included in all copies or substantial portions of the Software.
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| 20 | *
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| 21 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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| 22 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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| 23 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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| 24 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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| 25 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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| 26 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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| 27 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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| 28 | * OTHER DEALINGS IN THE SOFTWARE.
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| 29 | */
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| 30 |
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| 31 |
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| 32 | /*********************************************************************************************************************************
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| 33 | * Header Files *
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| 34 | *********************************************************************************************************************************/
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| 35 | #include "VBoxGuestR0LibInternal.h"
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| 36 | #include <VBox/err.h>
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| 37 | #include <VBox/log.h>
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| 38 |
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| 39 |
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| 40 | /*********************************************************************************************************************************
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| 41 | * Global Variables *
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| 42 | *********************************************************************************************************************************/
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| 43 | RT_C_DECLS_BEGIN /* for watcom */
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| 44 | /* This is defined in some assembly file. The AttachDD operation
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| 45 | is done in the driver init code. */
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| 46 | extern VBGLOS2ATTACHDD g_VBoxGuestIDC;
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| 47 | RT_C_DECLS_END
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| 48 |
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| 49 |
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| 50 |
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| 51 | int VBOXCALL vbglR0IdcNativeOpen(PVBGLIDCHANDLE pHandle, PVBGLIOCIDCCONNECT pReq)
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| 52 | {
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| 53 | /*
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| 54 | * Just check whether the connection was made or not.
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| 55 | */
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| 56 | if ( g_VBoxGuestIDC.u32Version == VBGL_IOC_VERSION
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| 57 | && RT_VALID_PTR(g_VBoxGuestIDC.u32Session)
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| 58 | && RT_VALID_PTR(g_VBoxGuestIDC.pfnServiceEP))
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| 59 | return g_VBoxGuestIDC.pfnServiceEP(g_VBoxGuestIDC.u32Session, VBGL_IOCTL_IDC_CONNECT, &pReq->Hdr, sizeof(*pReq));
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| 60 | Log(("vbglDriverOpen: failed\n"));
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| 61 | RT_NOREF(pHandle);
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| 62 | return VERR_FILE_NOT_FOUND;
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| 63 | }
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| 64 |
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| 65 |
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| 66 | int VBOXCALL vbglR0IdcNativeClose(PVBGLIDCHANDLE pHandle, PVBGLIOCIDCDISCONNECT pReq)
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| 67 | {
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| 68 | return g_VBoxGuestIDC.pfnServiceEP((uintptr_t)pHandle->s.pvSession, VBGL_IOCTL_IDC_DISCONNECT, &pReq->Hdr, sizeof(*pReq));
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| 69 | }
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| 70 |
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| 71 |
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| 72 | /**
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| 73 | * Makes an IDC call, returning only the I/O control status code.
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| 74 | *
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| 75 | * @returns VBox status code (the I/O control failure status).
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| 76 | * @param pHandle The IDC handle.
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| 77 | * @param uReq The request number.
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| 78 | * @param pReqHdr The request header.
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| 79 | * @param cbReq The request size.
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| 80 | */
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| 81 | DECLR0VBGL(int) VbglR0IdcCallRaw(PVBGLIDCHANDLE pHandle, uintptr_t uReq, PVBGLREQHDR pReqHdr, uint32_t cbReq)
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| 82 | {
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| 83 | return g_VBoxGuestIDC.pfnServiceEP((uintptr_t)pHandle->s.pvSession, uReq, pReqHdr, cbReq);
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| 84 | }
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| 85 |
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