diff options
Diffstat (limited to 'src/VBox/HostDrivers/Support/freebsd/SUPLib-freebsd.cpp')
| -rw-r--r-- | src/VBox/HostDrivers/Support/freebsd/SUPLib-freebsd.cpp | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/src/VBox/HostDrivers/Support/freebsd/SUPLib-freebsd.cpp b/src/VBox/HostDrivers/Support/freebsd/SUPLib-freebsd.cpp new file mode 100644 index 00000000..cfd5244f --- /dev/null +++ b/src/VBox/HostDrivers/Support/freebsd/SUPLib-freebsd.cpp @@ -0,0 +1,197 @@ +/* $Id: SUPLib-freebsd.cpp $ */ +/** @file + * VirtualBox Support Library - FreeBSD 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 LOG_GROUP LOG_GROUP_SUP +#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/mem.h> +#include <iprt/err.h> +#include <iprt/string.h> +#include "../SUPLibInternal.h" +#include "../SUPDrvIOC.h" + +#include <sys/fcntl.h> +#include <sys/ioctl.h> +#include <errno.h> +#include <unistd.h> +#include <stdlib.h> +#include <stdio.h> + + +/********************************************************************************************************************************* +* Defined Constants And Macros * +*********************************************************************************************************************************/ +/** System device name. */ +#define DEVICE_NAME_SYS "/dev/vboxdrv" +/** User device name. */ +#define DEVICE_NAME_USR "/dev/vboxdrvu" + + + +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 BSD device. + */ + const char * const *pszDeviceNm = fFlags & SUPR3INIT_F_UNRESTRICTED ? DEVICE_NAME_SYS : DEVICE_NAME_USR; + int hDevice = open(pszDeviceNm, O_RDWR, 0); + if (hDevice < 0) + { + int rc; + switch (errno) + { + case ENODEV: rc = VERR_VM_DRIVER_LOAD_ERROR; break; + case EPERM: + case EACCES: rc = VERR_VM_DRIVER_NOT_ACCESSIBLE; break; + case ENOENT: rc = VERR_VM_DRIVER_NOT_INSTALLED; break; + default: rc = VERR_VM_DRIVER_OPEN_ERROR; break; + } + LogRel(("Failed to open \"%s\", errno=%d, rc=%Rrc\n", pszDeviceNm, errno, rc)); + return rc; + } + + /* + * Mark the file handle close on exec. + */ + if (fcntl(hDevice, F_SETFD, FD_CLOEXEC) != 0) + { +#ifdef IN_SUP_HARDENED_R3 + int rc = VERR_INTERNAL_ERROR; +#else + int err = errno; + int rc = RTErrConvertFromErrno(err); + LogRel(("suplibOSInit: setting FD_CLOEXEC failed, errno=%d (%Rrc)\n", err, rc)); +#endif + close(hDevice); + return rc; + } + + /* + * We're done. + */ + pThis->hDevice = hDevice; + pThis->fUnrestricted = RT_BOOL(fFlags & SUPR3INIT_F_UNRESTRICTED); + return VINF_SUCCESS; +} + + +DECLHIDDEN(int) suplibOsTerm(PSUPLIBDATA pThis) +{ + /* + * Check if we're inited at all. + */ + if (pThis->hDevice != (intptr_t)NIL_RTFILE) + { + if (close(pThis->hDevice)) + AssertFailed(); + pThis->hDevice = (intptr_t)NIL_RTFILE; + } + return VINF_SUCCESS; +} + + +#ifndef IN_SUP_HARDENED_R3 + +DECLHIDDEN(int) suplibOsInstall(void) +{ + return VERR_NOT_IMPLEMENTED; +} + + +DECLHIDDEN(int) suplibOsUninstall(void) +{ + return VERR_NOT_IMPLEMENTED; +} + + +DECLHIDDEN(int) suplibOsIOCtl(PSUPLIBDATA pThis, uintptr_t uFunction, void *pvReq, size_t cbReq) +{ + if (RT_LIKELY(ioctl(pThis->hDevice, uFunction, pvReq) >= 0)) + return VINF_SUCCESS; + return RTErrConvertFromErrno(errno); +} + + +DECLHIDDEN(int) suplibOsIOCtlFast(PSUPLIBDATA pThis, uintptr_t uFunction, uintptr_t idCpu) +{ + int rc = ioctl(pThis->hDevice, uFunction, idCpu); + if (rc == -1) + rc = errno; + return rc; +} + + +DECLHIDDEN(int) suplibOsPageAlloc(PSUPLIBDATA pThis, size_t cPages, uint32_t fFlags, void **ppvPages) +{ + RT_NOREF(pThis, fFlags); + *ppvPages = RTMemPageAllocZ(cPages << PAGE_SHIFT); + if (*ppvPages) + return VINF_SUCCESS; + return RTErrConvertFromErrno(errno); +} + + +DECLHIDDEN(int) suplibOsPageFree(PSUPLIBDATA pThis, void *pvPages, size_t cPages) +{ + NOREF(pThis); + RTMemPageFree(pvPages, cPages * PAGE_SIZE); + return VINF_SUCCESS; +} + +#endif /* !IN_SUP_HARDENED_R3 */ + |