acrn-kernel/fs/xfs/linux-2.6/xfs_ioctl32.c

173 lines
4.5 KiB
C

/*
* Copyright (c) 2004-2005 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program with
* other software, or any other product whatsoever.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write the Free Software Foundation, Inc., 59
* Temple Place - Suite 330, Boston MA 02111-1307, USA.
*
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
* Mountain View, CA 94043, or:
*
* http://www.sgi.com
*
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
*/
#include <linux/config.h>
#include <linux/compat.h>
#include <linux/init.h>
#include <linux/ioctl.h>
#include <linux/ioctl32.h>
#include <linux/syscalls.h>
#include <linux/types.h>
#include <linux/fs.h>
#include <asm/uaccess.h>
#include "xfs.h"
#include "xfs_types.h"
#include "xfs_fs.h"
#include "xfs_vfs.h"
#include "xfs_vnode.h"
#include "xfs_dfrag.h"
#if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
#define BROKEN_X86_ALIGNMENT
#else
typedef struct xfs_fsop_bulkreq32 {
compat_uptr_t lastip; /* last inode # pointer */
__s32 icount; /* count of entries in buffer */
compat_uptr_t ubuffer; /* user buffer for inode desc. */
__s32 ocount; /* output count pointer */
} xfs_fsop_bulkreq32_t;
STATIC unsigned long
xfs_ioctl32_bulkstat(
unsigned long arg)
{
xfs_fsop_bulkreq32_t __user *p32 = (void __user *)arg;
xfs_fsop_bulkreq_t __user *p = compat_alloc_user_space(sizeof(*p));
u32 addr;
if (get_user(addr, &p32->lastip) ||
put_user(compat_ptr(addr), &p->lastip) ||
copy_in_user(&p->icount, &p32->icount, sizeof(s32)) ||
get_user(addr, &p32->ubuffer) ||
put_user(compat_ptr(addr), &p->ubuffer) ||
get_user(addr, &p32->ocount) ||
put_user(compat_ptr(addr), &p->ocount))
return -EFAULT;
return (unsigned long)p;
}
#endif
STATIC long
__linvfs_compat_ioctl(int mode, struct file *f, unsigned cmd, unsigned long arg)
{
int error;
struct inode *inode = f->f_dentry->d_inode;
vnode_t *vp = LINVFS_GET_VP(inode);
switch (cmd) {
case XFS_IOC_DIOINFO:
case XFS_IOC_FSGEOMETRY_V1:
case XFS_IOC_FSGEOMETRY:
case XFS_IOC_GETVERSION:
case XFS_IOC_GETXFLAGS:
case XFS_IOC_SETXFLAGS:
case XFS_IOC_FSGETXATTR:
case XFS_IOC_FSSETXATTR:
case XFS_IOC_FSGETXATTRA:
case XFS_IOC_FSSETDM:
case XFS_IOC_GETBMAP:
case XFS_IOC_GETBMAPA:
case XFS_IOC_GETBMAPX:
/* not handled
case XFS_IOC_FD_TO_HANDLE:
case XFS_IOC_PATH_TO_HANDLE:
case XFS_IOC_PATH_TO_HANDLE:
case XFS_IOC_PATH_TO_FSHANDLE:
case XFS_IOC_OPEN_BY_HANDLE:
case XFS_IOC_FSSETDM_BY_HANDLE:
case XFS_IOC_READLINK_BY_HANDLE:
case XFS_IOC_ATTRLIST_BY_HANDLE:
case XFS_IOC_ATTRMULTI_BY_HANDLE:
*/
case XFS_IOC_FSCOUNTS:
case XFS_IOC_SET_RESBLKS:
case XFS_IOC_GET_RESBLKS:
case XFS_IOC_FSGROWFSDATA:
case XFS_IOC_FSGROWFSLOG:
case XFS_IOC_FSGROWFSRT:
case XFS_IOC_FREEZE:
case XFS_IOC_THAW:
case XFS_IOC_GOINGDOWN:
case XFS_IOC_ERROR_INJECTION:
case XFS_IOC_ERROR_CLEARALL:
break;
#ifndef BROKEN_X86_ALIGNMENT
/* xfs_flock_t and xfs_bstat_t have wrong u32 vs u64 alignment */
case XFS_IOC_ALLOCSP:
case XFS_IOC_FREESP:
case XFS_IOC_RESVSP:
case XFS_IOC_UNRESVSP:
case XFS_IOC_ALLOCSP64:
case XFS_IOC_FREESP64:
case XFS_IOC_RESVSP64:
case XFS_IOC_UNRESVSP64:
case XFS_IOC_SWAPEXT:
break;
case XFS_IOC_FSBULKSTAT_SINGLE:
case XFS_IOC_FSBULKSTAT:
case XFS_IOC_FSINUMBERS:
arg = xfs_ioctl32_bulkstat(arg);
break;
#endif
default:
return -ENOIOCTLCMD;
}
VOP_IOCTL(vp, inode, f, mode, cmd, (void __user *)arg, error);
VMODIFY(vp);
return error;
}
long
linvfs_compat_ioctl(
struct file *f,
unsigned cmd,
unsigned long arg)
{
return __linvfs_compat_ioctl(0, f, cmd, arg);
}
long
linvfs_compat_invis_ioctl(
struct file *f,
unsigned cmd,
unsigned long arg)
{
return __linvfs_compat_ioctl(IO_INVIS, f, cmd, arg);
}