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/* $Id: SUPLib-os2.cpp $ */
/** @file
* VirtualBox Support Library - OS/2 specific parts.
*/
/*
* Copyright (C) 2006-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#define INCL_BASE
#define INCL_ERRORS
#include <os2.h>
#undef RT_MAX
#ifdef IN_SUP_HARDENED_R3
# undef DEBUG /* Warning: disables RT_STRICT */
# define LOG_DISABLED
# define RTLOG_REL_DISABLED
# include <iprt/log.h>
#endif
#include <VBox/types.h>
#include <VBox/sup.h>
#include <VBox/param.h>
#include <VBox/err.h>
#include <VBox/log.h>
#include <iprt/path.h>
#include <iprt/assert.h>
#include <iprt/err.h>
#include "../SUPLibInternal.h"
#include "../SUPDrvIOC.h"
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
/*********************************************************************************************************************************
* Defined Constants And Macros *
*********************************************************************************************************************************/
/** OS/2 Device name. */
#define DEVICE_NAME "/dev/vboxdrv$"
DECLHIDDEN(int) suplibOsInit(PSUPLIBDATA pThis, bool fPreInited, uint32_t fFlags, SUPINITOP *penmWhat, PRTERRINFO pErrInfo)
{
/*
* Nothing to do if pre-inited.
*/
if (fPreInited)
return VINF_SUCCESS;
/*
* Try open the device.
*/
ULONG ulAction = 0;
HFILE hDevice = (HFILE)-1;
APIRET rc = DosOpen((PCSZ)DEVICE_NAME,
&hDevice,
&ulAction,
0,
FILE_NORMAL,
OPEN_ACTION_FAIL_IF_NEW | OPEN_ACTION_OPEN_IF_EXISTS,
OPEN_FLAGS_NOINHERIT | OPEN_SHARE_DENYNONE | OPEN_ACCESS_READWRITE,
NULL);
if (rc)
{
int vrc;
switch (rc)
{
case ERROR_FILE_NOT_FOUND:
case ERROR_PATH_NOT_FOUND: vrc = VERR_VM_DRIVER_NOT_INSTALLED; break;
default: vrc = VERR_VM_DRIVER_OPEN_ERROR; break;
}
LogRel(("Failed to open \"%s\", rc=%d, vrc=%Rrc\n", DEVICE_NAME, rc, vrc));
return vrc;
}
pThis->hDevice = hDevice;
pThis->fUnrestricted = true;
RT_NOREF(fFlags);
return VINF_SUCCESS;
}
DECLHIDDEN(int) suplibOsTerm(PSUPLIBDATA pThis)
{
/*
* Check if we're inited at all.
*/
if (pThis->hDevice != (intptr_t)NIL_RTFILE)
{
APIRET rc = DosClose((HFILE)pThis->hDevice);
AssertMsg(rc == NO_ERROR, ("%d\n", rc)); NOREF(rc);
pThis->hDevice = (intptr_t)NIL_RTFILE;
}
return 0;
}
#ifndef IN_SUP_HARDENED_R3
DECLHIDDEN(int) suplibOsInstall(void)
{
/** @remark OS/2: Not supported */
return VERR_NOT_SUPPORTED;
}
DECLHIDDEN(int) suplibOsUninstall(void)
{
/** @remark OS/2: Not supported */
return VERR_NOT_SUPPORTED;
}
DECLHIDDEN(int) suplibOsIOCtl(PSUPLIBDATA pThis, uintptr_t uFunction, void *pvReq, size_t cbReq)
{
ULONG cbReturned = sizeof(SUPREQHDR);
int rc = DosDevIOCtl((HFILE)pThis->hDevice, SUP_CTL_CATEGORY, uFunction,
pvReq, cbReturned, &cbReturned,
NULL, 0, NULL);
if (RT_LIKELY(rc == NO_ERROR))
return VINF_SUCCESS;
return RTErrConvertFromOS2(rc);
}
DECLHIDDEN(int) suplibOsIOCtlFast(PSUPLIBDATA pThis, uintptr_t uFunction, uintptr_t idCpu)
{
NOREF(idCpu);
int32_t rcRet = VERR_INTERNAL_ERROR;
int rc = DosDevIOCtl((HFILE)pThis->hDevice, SUP_CTL_CATEGORY_FAST, uFunction,
NULL, 0, NULL,
NULL, 0, NULL);
if (RT_LIKELY(rc == NO_ERROR))
rc = rcRet;
else
rc = RTErrConvertFromOS2(rc);
return rc;
}
DECLHIDDEN(int) suplibOsPageAlloc(PSUPLIBDATA pThis, size_t cPages, uint32_t fFlags, void **ppvPages)
{
RT_NOREF(pThis, fFlags);
*ppvPages = NULL;
int rc = DosAllocMem(ppvPages, cPages << PAGE_SHIFT, PAG_READ | PAG_WRITE | PAG_EXECUTE | PAG_COMMIT | OBJ_ANY);
if (rc == ERROR_INVALID_PARAMETER)
rc = DosAllocMem(ppvPages, cPages << PAGE_SHIFT, PAG_READ | PAG_WRITE | PAG_EXECUTE | PAG_COMMIT | OBJ_ANY);
if (!rc)
rc = VINF_SUCCESS;
else
rc = RTErrConvertFromOS2(rc);
return rc;
}
DECLHIDDEN(int) suplibOsPageFree(PSUPLIBDATA pThis, void *pvPages, size_t /* cPages */)
{
NOREF(pThis);
if (pvPages)
{
int rc = DosFreeMem(pvPages);
Assert(!rc); NOREF(rc);
}
return VINF_SUCCESS;
}
#endif /* !IN_SUP_HARDENED_R3 */
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