LXR linux/fs/xfs/xfs

   1/*
   2 * Copyright (c) 2004-2005 Silicon Graphics, Inc.
   3 * All Rights Reserved.
   4 *
   5 * This program is free software; you can redistribute it and/or
   6 * modify it under the terms of the GNU General Public License as
   7 * published by the Free Software Foundation.
   8 *
   9 * This program is distributed in the hope that it would be useful,
  10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 * GNU General Public License for more details.
  13 *
  14 * You should have received a copy of the GNU General Public License
  15 * along with this program; if not, write the Free Software Foundation,
  16 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17 */
  18#ifndef __XFS_IOCTL32_H__
  19#define __XFS_IOCTL32_H__
  20
  21#include <linux/compat.h>
  22
  23/*
  24 * on 32-bit arches, ioctl argument structures may have different sizes
  25 * and/or alignment.  We define compat structures which match the
  26 * 32-bit sizes/alignments here, and their associated ioctl numbers.
  27 *
  28 * xfs_ioctl32.c contains routines to copy these structures in and out.
  29 */
  30
  31/* stock kernel-level ioctls we support */
  32#define XFS_IOC_GETXFLAGS_32    FS_IOC32_GETFLAGS
  33#define XFS_IOC_SETXFLAGS_32    FS_IOC32_SETFLAGS
  34#define XFS_IOC_GETVERSION_32   FS_IOC32_GETVERSION
  35
  36/*
  37 * On intel, even if sizes match, alignment and/or padding may differ.
  38 */
  39#if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
  40#define BROKEN_X86_ALIGNMENT
  41#define __compat_packed __attribute__((packed))
  42#else
  43#define __compat_packed
  44#endif
  45
  46typedef struct compat_xfs_bstime {
  47        compat_time_t   tv_sec;         /* seconds              */
  48        __s32           tv_nsec;        /* and nanoseconds      */
  49} compat_xfs_bstime_t;
  50
  51typedef struct compat_xfs_bstat {
  52        __u64           bs_ino;         /* inode number                 */
  53        __u16           bs_mode;        /* type and mode                */
  54        __u16           bs_nlink;       /* number of links              */
  55        __u32           bs_uid;         /* user id                      */
  56        __u32           bs_gid;         /* group id                     */
  57        __u32           bs_rdev;        /* device value                 */
  58        __s32           bs_blksize;     /* block size                   */
  59        __s64           bs_size;        /* file size                    */
  60        compat_xfs_bstime_t bs_atime;   /* access time                  */
  61        compat_xfs_bstime_t bs_mtime;   /* modify time                  */
  62        compat_xfs_bstime_t bs_ctime;   /* inode change time            */
  63        int64_t         bs_blocks;      /* number of blocks             */
  64        __u32           bs_xflags;      /* extended flags               */
  65        __s32           bs_extsize;     /* extent size                  */
  66        __s32           bs_extents;     /* number of extents            */
  67        __u32           bs_gen;         /* generation count             */
  68        __u16           bs_projid_lo;   /* lower part of project id     */
  69#define bs_projid       bs_projid_lo    /* (previously just bs_projid)  */
  70        __u16           bs_projid_hi;   /* high part of project id      */
  71        unsigned char   bs_pad[12];     /* pad space, unused            */
  72        __u32           bs_dmevmask;    /* DMIG event mask              */
  73        __u16           bs_dmstate;     /* DMIG state info              */
  74        __u16           bs_aextents;    /* attribute number of extents  */
  75} __compat_packed compat_xfs_bstat_t;
  76
  77typedef struct compat_xfs_fsop_bulkreq {
  78        compat_uptr_t   lastip;         /* last inode # pointer         */
  79        __s32           icount;         /* count of entries in buffer   */
  80        compat_uptr_t   ubuffer;        /* user buffer for inode desc.  */
  81        compat_uptr_t   ocount;         /* output count pointer         */
  82} compat_xfs_fsop_bulkreq_t;
  83
  84#define XFS_IOC_FSBULKSTAT_32 \
  85        _IOWR('X', 101, struct compat_xfs_fsop_bulkreq)
  86#define XFS_IOC_FSBULKSTAT_SINGLE_32 \
  87        _IOWR('X', 102, struct compat_xfs_fsop_bulkreq)
  88#define XFS_IOC_FSINUMBERS_32 \
  89        _IOWR('X', 103, struct compat_xfs_fsop_bulkreq)
  90
  91typedef struct compat_xfs_fsop_handlereq {
  92        __u32           fd;             /* fd for FD_TO_HANDLE          */
  93        compat_uptr_t   path;           /* user pathname                */
  94        __u32           oflags;         /* open flags                   */
  95        compat_uptr_t   ihandle;        /* user supplied handle         */
  96        __u32           ihandlen;       /* user supplied length         */
  97        compat_uptr_t   ohandle;        /* user buffer for handle       */
  98        compat_uptr_t   ohandlen;       /* user buffer length           */
  99} compat_xfs_fsop_handlereq_t;
 100
 101#define XFS_IOC_PATH_TO_FSHANDLE_32 \
 102        _IOWR('X', 104, struct compat_xfs_fsop_handlereq)
 103#define XFS_IOC_PATH_TO_HANDLE_32 \
 104        _IOWR('X', 105, struct compat_xfs_fsop_handlereq)
 105#define XFS_IOC_FD_TO_HANDLE_32 \
 106        _IOWR('X', 106, struct compat_xfs_fsop_handlereq)
 107#define XFS_IOC_OPEN_BY_HANDLE_32 \
 108        _IOWR('X', 107, struct compat_xfs_fsop_handlereq)
 109#define XFS_IOC_READLINK_BY_HANDLE_32 \
 110        _IOWR('X', 108, struct compat_xfs_fsop_handlereq)
 111
 112/* The bstat field in the swapext struct needs translation */
 113typedef struct compat_xfs_swapext {
 114        __int64_t               sx_version;     /* version */
 115        __int64_t               sx_fdtarget;    /* fd of target file */
 116        __int64_t               sx_fdtmp;       /* fd of tmp file */
 117        xfs_off_t               sx_offset;      /* offset into file */
 118        xfs_off_t               sx_length;      /* leng from offset */
 119        char                    sx_pad[16];     /* pad space, unused */
 120        compat_xfs_bstat_t      sx_stat;        /* stat of target b4 copy */
 121} __compat_packed compat_xfs_swapext_t;
 122
 123#define XFS_IOC_SWAPEXT_32      _IOWR('X', 109, struct compat_xfs_swapext)
 124
 125typedef struct compat_xfs_fsop_attrlist_handlereq {
 126        struct compat_xfs_fsop_handlereq hreq; /* handle interface structure */
 127        struct xfs_attrlist_cursor      pos; /* opaque cookie, list offset */
 128        __u32                           flags;  /* which namespace to use */
 129        __u32                           buflen; /* length of buffer supplied */
 130        compat_uptr_t                   buffer; /* returned names */
 131} __compat_packed compat_xfs_fsop_attrlist_handlereq_t;
 132
 133/* Note: actually this is read/write */
 134#define XFS_IOC_ATTRLIST_BY_HANDLE_32 \
 135        _IOW('X', 122, struct compat_xfs_fsop_attrlist_handlereq)
 136
 137/* am_opcodes defined in xfs_fs.h */
 138typedef struct compat_xfs_attr_multiop {
 139        __u32           am_opcode;
 140        __s32           am_error;
 141        compat_uptr_t   am_attrname;
 142        compat_uptr_t   am_attrvalue;
 143        __u32           am_length;
 144        __u32           am_flags;
 145} compat_xfs_attr_multiop_t;
 146
 147typedef struct compat_xfs_fsop_attrmulti_handlereq {
 148        struct compat_xfs_fsop_handlereq hreq; /* handle interface structure */
 149        __u32                           opcount;/* count of following multiop */
 150        /* ptr to compat_xfs_attr_multiop */
 151        compat_uptr_t                   ops; /* attr_multi data */
 152} compat_xfs_fsop_attrmulti_handlereq_t;
 153
 154#define XFS_IOC_ATTRMULTI_BY_HANDLE_32 \
 155        _IOW('X', 123, struct compat_xfs_fsop_attrmulti_handlereq)
 156
 157typedef struct compat_xfs_fsop_setdm_handlereq {
 158        struct compat_xfs_fsop_handlereq hreq;  /* handle information   */
 159        /* ptr to struct fsdmidata */
 160        compat_uptr_t                   data;   /* DMAPI data   */
 161} compat_xfs_fsop_setdm_handlereq_t;
 162
 163#define XFS_IOC_FSSETDM_BY_HANDLE_32 \
 164        _IOW('X', 121, struct compat_xfs_fsop_setdm_handlereq)
 165
 166#ifdef BROKEN_X86_ALIGNMENT
 167/* on ia32 l_start is on a 32-bit boundary */
 168typedef struct compat_xfs_flock64 {
 169        __s16           l_type;
 170        __s16           l_whence;
 171        __s64           l_start __attribute__((packed));
 172                        /* len == 0 means until end of file */
 173        __s64           l_len __attribute__((packed));
 174        __s32           l_sysid;
 175        __u32           l_pid;
 176        __s32           l_pad[4];       /* reserve area */
 177} compat_xfs_flock64_t;
 178
 179#define XFS_IOC_ALLOCSP_32      _IOW('X', 10, struct compat_xfs_flock64)
 180#define XFS_IOC_FREESP_32       _IOW('X', 11, struct compat_xfs_flock64)
 181#define XFS_IOC_ALLOCSP64_32    _IOW('X', 36, struct compat_xfs_flock64)
 182#define XFS_IOC_FREESP64_32     _IOW('X', 37, struct compat_xfs_flock64)
 183#define XFS_IOC_RESVSP_32       _IOW('X', 40, struct compat_xfs_flock64)
 184#define XFS_IOC_UNRESVSP_32     _IOW('X', 41, struct compat_xfs_flock64)
 185#define XFS_IOC_RESVSP64_32     _IOW('X', 42, struct compat_xfs_flock64)
 186#define XFS_IOC_UNRESVSP64_32   _IOW('X', 43, struct compat_xfs_flock64)
 187#define XFS_IOC_ZERO_RANGE_32   _IOW('X', 57, struct compat_xfs_flock64)
 188
 189typedef struct compat_xfs_fsop_geom_v1 {
 190        __u32           blocksize;      /* filesystem (data) block size */
 191        __u32           rtextsize;      /* realtime extent size         */
 192        __u32           agblocks;       /* fsblocks in an AG            */
 193        __u32           agcount;        /* number of allocation groups  */
 194        __u32           logblocks;      /* fsblocks in the log          */
 195        __u32           sectsize;       /* (data) sector size, bytes    */
 196        __u32           inodesize;      /* inode size in bytes          */
 197        __u32           imaxpct;        /* max allowed inode space(%)   */
 198        __u64           datablocks;     /* fsblocks in data subvolume   */
 199        __u64           rtblocks;       /* fsblocks in realtime subvol  */
 200        __u64           rtextents;      /* rt extents in realtime subvol*/
 201        __u64           logstart;       /* starting fsblock of the log  */
 202        unsigned char   uuid[16];       /* unique id of the filesystem  */
 203        __u32           sunit;          /* stripe unit, fsblocks        */
 204        __u32           swidth;         /* stripe width, fsblocks       */
 205        __s32           version;        /* structure version            */
 206        __u32           flags;          /* superblock version flags     */
 207        __u32           logsectsize;    /* log sector size, bytes       */
 208        __u32           rtsectsize;     /* realtime sector size, bytes  */
 209        __u32           dirblocksize;   /* directory block size, bytes  */
 210} __attribute__((packed)) compat_xfs_fsop_geom_v1_t;
 211
 212#define XFS_IOC_FSGEOMETRY_V1_32  \
 213        _IOR('X', 100, struct compat_xfs_fsop_geom_v1)
 214
 215typedef struct compat_xfs_inogrp {
 216        __u64           xi_startino;    /* starting inode number        */
 217        __s32           xi_alloccount;  /* # bits set in allocmask      */
 218        __u64           xi_allocmask;   /* mask of allocated inodes     */
 219} __attribute__((packed)) compat_xfs_inogrp_t;
 220
 221/* These growfs input structures have padding on the end, so must translate */
 222typedef struct compat_xfs_growfs_data {
 223        __u64           newblocks;      /* new data subvol size, fsblocks */
 224        __u32           imaxpct;        /* new inode space percentage limit */
 225} __attribute__((packed)) compat_xfs_growfs_data_t;
 226
 227typedef struct compat_xfs_growfs_rt {
 228        __u64           newblocks;      /* new realtime size, fsblocks */
 229        __u32           extsize;        /* new realtime extent size, fsblocks */
 230} __attribute__((packed)) compat_xfs_growfs_rt_t;
 231
 232#define XFS_IOC_FSGROWFSDATA_32 _IOW('X', 110, struct compat_xfs_growfs_data)
 233#define XFS_IOC_FSGROWFSRT_32   _IOW('X', 112, struct compat_xfs_growfs_rt)
 234
 235#endif /* BROKEN_X86_ALIGNMENT */
 236
 237#endif /* __XFS_IOCTL32_H__ */
 238