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/* $Id: vboxfs_mount.c $ */
/** @file
* VirtualBox File System Mount Helper, Solaris host.
* Userspace mount wrapper that parses mount (or user-specified) options
* and passes it to mount(2) syscall
*/
/*
* Copyright (C) 2009-2023 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 *
*********************************************************************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <sys/vfs.h>
#include <sys/mount.h>
#include "vboxfs.h"
/*********************************************************************************************************************************
* Global Variables *
*********************************************************************************************************************************/
static char g_achOptBuf[MAX_MNTOPT_STR] = { '\0', };
static const int g_RetErr = 33;
static const int g_RetMagic = 2;
static const int g_RetOK = 0;
static void Usage(char *pszName)
{
fprintf(stderr, "Usage: %s [OPTIONS] NAME MOUNTPOINT\n"
"Mount the VirtualBox shared folder NAME from the host system to MOUNTPOINT.\n"
"\n"
" -w mount the shared folder writable (the default)\n"
" -r mount the shared folder read-only\n"
" -o OPTION[,OPTION...] use the mount options specified\n"
"\n", pszName);
fprintf(stderr, "Available mount options are:\n"
"\n"
" rw mount writable (the default)\n"
" ro mount read only\n"
" uid=UID set the default file owner user id to UID\n"
" gid=GID set the default file owner group id to GID\n");
fprintf(stderr,
" dmode=MODE override the mode for all directories (octal) to MODE\n"
" fmode=MODE override the mode for all regular files (octal) to MODE\n"
" umask=UMASK set the umask (bitmask of permissions not present) in (octal) UMASK\n"
" dmask=UMASK set the umask applied to directories only in (octal) UMASK\n"
" fmask=UMASK set the umask applied to regular files only in (octal) UMASK\n"
" stat_ttl=TTL set the \"time to live\" (in ms) for the stat caches (default %d)\n", DEF_STAT_TTL_MS);
fprintf(stderr,
" fsync honor fsync calls instead of ignoring them\n"
" ttl=TTL set the \"time to live\" to TID for the dentry\n"
" iocharset CHARSET use the character set CHARSET for i/o operations (default utf8)\n"
" convertcp CHARSET convert the shared folder name from the character set CHARSET to utf8\n\n"
"Less common used options:\n"
" noexec,exec,nodev,dev,nosuid,suid\n");
exit(1);
}
int main(int argc, char **argv)
{
char *pszName = NULL;
char *pszSpecial = NULL;
char *pszMount = NULL;
char achType[MAXFIDSZ];
int c = '?';
int rc = -1;
int parseError = 0;
int mntFlags = 0;
int quietFlag = 0;
pszName = strrchr(argv[0], '/');
pszName = pszName ? pszName + 1 : argv[0];
snprintf(achType, sizeof(achType), "%s_%s", DEVICE_NAME, pszName);
while ((c = getopt(argc, argv, "o:rmoQ")) != EOF)
{
switch (c)
{
case '?':
{
parseError = 1;
break;
}
case 'q':
{
quietFlag = 1;
break;
}
case 'r':
{
mntFlags |= MS_RDONLY;
break;
}
case 'O':
{
mntFlags |= MS_OVERLAY;
break;
}
case 'm':
{
mntFlags |= MS_NOMNTTAB;
break;
}
case 'o':
{
if (strlcpy(g_achOptBuf, optarg, sizeof(g_achOptBuf)) >= sizeof(g_achOptBuf))
{
fprintf(stderr, "%s: invalid argument: %s\n", pszName, optarg);
return g_RetMagic;
}
break;
}
default:
{
Usage(pszName);
break;
}
}
}
if ( argc - optind != 2
|| parseError)
{
Usage(pszName);
}
pszSpecial = argv[argc - 2];
pszMount = argv[argc - 1];
rc = mount(pszSpecial, pszMount, mntFlags | MS_OPTIONSTR, DEVICE_NAME, NULL, 0, g_achOptBuf, sizeof(g_achOptBuf));
if (rc)
{
fprintf(stderr, "mount:");
perror(pszSpecial);
return g_RetErr;
}
return g_RetOK;
}
|
