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/* $Id$ */
/** @file
* VirtualBox Support Library - Solaris specific parts.
*/
/*
* Copyright (C) 2006-2016 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE 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.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#define LOG_GROUP LOG_GROUP_SUP
#ifdef IN_SUP_HARDENED_R3
# undef DEBUG /* Warning: disables RT_STRICT */
# ifndef LOG_DISABLED
# define LOG_DISABLED
# endif
# 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 <sys/zone.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <sys/mman.h>
#include <stdlib.h>
#include <stdio.h>
#include <zone.h>
/*********************************************************************************************************************************
* Defined Constants And Macros *
*********************************************************************************************************************************/
/** Solaris device link - system. */
#define DEVICE_NAME_SYS "/devices/pseudo/vboxdrv@0:vboxdrv"
/** Solaris device link - user. */
#define DEVICE_NAME_USR "/devices/pseudo/vboxdrv@0:vboxdrvu"
/** Solaris device link - system (non-global zone). */
#define DEVICE_NAME_SYS_ZONE "/dev/vboxdrv"
/** Solaris device link - user (non-global zone). */
#define DEVICE_NAME_USR_ZONE "/dev/vboxdrvu"
int suplibOsInit(PSUPLIBDATA pThis, bool fPreInited, bool fUnrestricted, SUPINITOP *penmWhat, PRTERRINFO pErrInfo)
{
/*
* Nothing to do if pre-inited.
*/
if (fPreInited)
return VINF_SUCCESS;
/*
* Open dummy files to preallocate file descriptors, see @bugref{4650}.
*/
for (int i = 0; i < SUPLIB_FLT_DUMMYFILES; i++)
{
pThis->ahDummy[i] = -1;
int hDummy = open("/dev/null", O_RDWR, 0);
if (hDummy >= 0)
{
if (fcntl(hDummy, F_SETFD, FD_CLOEXEC) == 0)
pThis->ahDummy[i] = hDummy;
else
{
close(hDummy);
LogRel(("Failed to set close on exec [%d] /dev/null! errno=%d\n", i, errno));
}
}
else
LogRel(("Failed to open[%d] /dev/null! errno=%d\n", i, errno));
}
/*
* Try to open the device.
*/
const char *pszDeviceNm;
if (getzoneid() == GLOBAL_ZONEID)
pszDeviceNm = fUnrestricted ? DEVICE_NAME_SYS : DEVICE_NAME_USR;
else
pszDeviceNm = fUnrestricted ? DEVICE_NAME_SYS_ZONE : DEVICE_NAME_USR_ZONE;
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;
}
pThis->hDevice = hDevice;
pThis->fUnrestricted = fUnrestricted;
return VINF_SUCCESS;
}
int suplibOsTerm(PSUPLIBDATA pThis)
{
/*
* Close the dummy files first.
*/
for (int i = 0; i < SUPLIB_FLT_DUMMYFILES; i++)
{
if (pThis->ahDummy[i] != -1)
{
close(pThis->ahDummy[i]);
pThis->ahDummy[i] = -1;
}
}
/*
* Check if we're initialized
*/
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
int suplibOsInstall(void)
{
return VERR_NOT_IMPLEMENTED;
}
int suplibOsUninstall(void)
{
return VERR_NOT_IMPLEMENTED;
}
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);
}
int suplibOsIOCtlFast(PSUPLIBDATA pThis, uintptr_t uFunction, uintptr_t idCpu)
{
int rc = ioctl(pThis->hDevice, uFunction, idCpu);
if (rc == -1)
rc = errno;
return rc;
}
int suplibOsPageAlloc(PSUPLIBDATA pThis, size_t cPages, void **ppvPages)
{
NOREF(pThis);
*ppvPages = mmap(NULL, cPages * PAGE_SIZE, PROT_EXEC | PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANON, -1, 0);
if (*ppvPages != (void *)-1)
return VINF_SUCCESS;
if (errno == EAGAIN)
return VERR_NO_MEMORY;
return RTErrConvertFromErrno(errno);
}
int suplibOsPageFree(PSUPLIBDATA pThis, void *pvPages, size_t cPages)
{
NOREF(pThis);
munmap(pvPages, cPages * PAGE_SIZE);
return VINF_SUCCESS;
}
#endif /* !IN_SUP_HARDENED_R3 */
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