| 1 | /* $Id: SUPLib-os2.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VirtualBox Support Library - OS/2 specific parts.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2023 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * The contents of this file may alternatively be used under the terms
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| 26 | * of the Common Development and Distribution License Version 1.0
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| 27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 28 | * in the VirtualBox distribution, in which case the provisions of the
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| 29 | * CDDL are applicable instead of those of the GPL.
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| 30 | *
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| 31 | * You may elect to license modified versions of this file under the
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| 32 | * terms and conditions of either the GPL or the CDDL or both.
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| 33 | *
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| 34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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| 35 | */
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| 36 |
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| 37 |
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| 38 | /*********************************************************************************************************************************
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| 39 | * Header Files *
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| 40 | *********************************************************************************************************************************/
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| 41 | #define INCL_BASE
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| 42 | #define INCL_ERRORS
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| 43 | #include <os2.h>
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| 44 | #undef RT_MAX
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| 45 |
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| 46 | #ifdef IN_SUP_HARDENED_R3
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| 47 | # undef DEBUG /* Warning: disables RT_STRICT */
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| 48 | # define LOG_DISABLED
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| 49 | # define RTLOG_REL_DISABLED
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| 50 | # include <iprt/log.h>
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| 51 | #endif
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| 52 |
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| 53 | #include <VBox/types.h>
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| 54 | #include <VBox/sup.h>
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| 55 | #include <VBox/param.h>
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| 56 | #include <VBox/err.h>
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| 57 | #include <VBox/log.h>
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| 58 | #include <iprt/path.h>
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| 59 | #include <iprt/assert.h>
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| 60 | #include <iprt/err.h>
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| 61 | #include "../SUPLibInternal.h"
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| 62 | #include "../SUPDrvIOC.h"
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| 63 |
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| 64 | #include <errno.h>
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| 65 | #include <unistd.h>
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| 66 | #include <stdlib.h>
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| 67 |
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| 68 |
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| 69 | /*********************************************************************************************************************************
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| 70 | * Defined Constants And Macros *
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| 71 | *********************************************************************************************************************************/
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| 72 | /** OS/2 Device name. */
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| 73 | #define DEVICE_NAME "/dev/vboxdrv$"
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| 74 |
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| 75 |
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| 76 |
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| 77 | DECLHIDDEN(int) suplibOsInit(PSUPLIBDATA pThis, bool fPreInited, uint32_t fFlags, SUPINITOP *penmWhat, PRTERRINFO pErrInfo)
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| 78 | {
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| 79 | /*
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| 80 | * Nothing to do if pre-inited.
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| 81 | */
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| 82 | if (fPreInited)
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| 83 | return VINF_SUCCESS;
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| 84 |
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| 85 | /*
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| 86 | * Try open the device.
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| 87 | */
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| 88 | ULONG ulAction = 0;
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| 89 | HFILE hDevice = (HFILE)-1;
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| 90 | APIRET rc = DosOpen((PCSZ)DEVICE_NAME,
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| 91 | &hDevice,
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| 92 | &ulAction,
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| 93 | 0,
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| 94 | FILE_NORMAL,
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| 95 | OPEN_ACTION_FAIL_IF_NEW | OPEN_ACTION_OPEN_IF_EXISTS,
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| 96 | OPEN_FLAGS_NOINHERIT | OPEN_SHARE_DENYNONE | OPEN_ACCESS_READWRITE,
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| 97 | NULL);
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| 98 | if (rc)
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| 99 | {
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| 100 | int vrc;
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| 101 | switch (rc)
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| 102 | {
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| 103 | case ERROR_FILE_NOT_FOUND:
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| 104 | case ERROR_PATH_NOT_FOUND: vrc = VERR_VM_DRIVER_NOT_INSTALLED; break;
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| 105 | default: vrc = VERR_VM_DRIVER_OPEN_ERROR; break;
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| 106 | }
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| 107 | LogRel(("Failed to open \"%s\", rc=%d, vrc=%Rrc\n", DEVICE_NAME, rc, vrc));
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| 108 | return vrc;
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| 109 | }
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| 110 |
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| 111 | pThis->hDevice = hDevice;
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| 112 | pThis->fUnrestricted = true;
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| 113 | RT_NOREF(fFlags);
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| 114 | return VINF_SUCCESS;
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| 115 | }
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| 116 |
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| 117 |
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| 118 | DECLHIDDEN(int) suplibOsTerm(PSUPLIBDATA pThis)
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| 119 | {
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| 120 | /*
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| 121 | * Check if we're inited at all.
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| 122 | */
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| 123 | if (pThis->hDevice != (intptr_t)NIL_RTFILE)
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| 124 | {
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| 125 | APIRET rc = DosClose((HFILE)pThis->hDevice);
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| 126 | AssertMsg(rc == NO_ERROR, ("%d\n", rc)); NOREF(rc);
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| 127 | pThis->hDevice = (intptr_t)NIL_RTFILE;
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| 128 | }
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| 129 |
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| 130 | return 0;
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| 131 | }
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| 132 |
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| 133 |
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| 134 | #ifndef IN_SUP_HARDENED_R3
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| 135 |
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| 136 | DECLHIDDEN(int) suplibOsInstall(void)
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| 137 | {
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| 138 | /** @remark OS/2: Not supported */
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| 139 | return VERR_NOT_SUPPORTED;
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| 140 | }
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| 141 |
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| 142 |
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| 143 | DECLHIDDEN(int) suplibOsUninstall(void)
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| 144 | {
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| 145 | /** @remark OS/2: Not supported */
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| 146 | return VERR_NOT_SUPPORTED;
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| 147 | }
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| 148 |
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| 149 |
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| 150 | DECLHIDDEN(int) suplibOsIOCtl(PSUPLIBDATA pThis, uintptr_t uFunction, void *pvReq, size_t cbReq)
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| 151 | {
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| 152 | ULONG cbReturned = sizeof(SUPREQHDR);
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| 153 | int rc = DosDevIOCtl((HFILE)pThis->hDevice, SUP_CTL_CATEGORY, uFunction,
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| 154 | pvReq, cbReturned, &cbReturned,
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| 155 | NULL, 0, NULL);
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| 156 | if (RT_LIKELY(rc == NO_ERROR))
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| 157 | return VINF_SUCCESS;
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| 158 | return RTErrConvertFromOS2(rc);
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| 159 | }
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| 160 |
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| 161 |
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| 162 | DECLHIDDEN(int) suplibOsIOCtlFast(PSUPLIBDATA pThis, uintptr_t uFunction, uintptr_t idCpu)
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| 163 | {
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| 164 | NOREF(idCpu);
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| 165 | int32_t rcRet = VERR_INTERNAL_ERROR;
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| 166 | int rc = DosDevIOCtl((HFILE)pThis->hDevice, SUP_CTL_CATEGORY_FAST, uFunction,
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| 167 | NULL, 0, NULL,
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| 168 | NULL, 0, NULL);
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| 169 | if (RT_LIKELY(rc == NO_ERROR))
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| 170 | rc = rcRet;
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| 171 | else
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| 172 | rc = RTErrConvertFromOS2(rc);
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| 173 | return rc;
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| 174 | }
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| 175 |
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| 176 |
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| 177 | DECLHIDDEN(int) suplibOsPageAlloc(PSUPLIBDATA pThis, size_t cPages, uint32_t fFlags, void **ppvPages)
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| 178 | {
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| 179 | RT_NOREF(pThis, fFlags);
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| 180 | *ppvPages = NULL;
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| 181 | int rc = DosAllocMem(ppvPages, cPages << PAGE_SHIFT, PAG_READ | PAG_WRITE | PAG_EXECUTE | PAG_COMMIT | OBJ_ANY);
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| 182 | if (rc == ERROR_INVALID_PARAMETER)
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| 183 | rc = DosAllocMem(ppvPages, cPages << PAGE_SHIFT, PAG_READ | PAG_WRITE | PAG_EXECUTE | PAG_COMMIT | OBJ_ANY);
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| 184 | if (!rc)
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| 185 | rc = VINF_SUCCESS;
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| 186 | else
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| 187 | rc = RTErrConvertFromOS2(rc);
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| 188 | return rc;
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| 189 | }
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| 190 |
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| 191 |
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| 192 | DECLHIDDEN(int) suplibOsPageFree(PSUPLIBDATA pThis, void *pvPages, size_t /* cPages */)
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| 193 | {
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| 194 | NOREF(pThis);
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| 195 | if (pvPages)
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| 196 | {
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| 197 | int rc = DosFreeMem(pvPages);
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| 198 | Assert(!rc); NOREF(rc);
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| 199 | }
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| 200 | return VINF_SUCCESS;
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| 201 | }
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| 202 |
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| 203 | #endif /* !IN_SUP_HARDENED_R3 */
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| 204 |
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