LXR linux/fs/xfs/xfs

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * Copyright (c) 2004-2005 Silicon Graphics, Inc.
   4 * All Rights Reserved.
   5 */
   6#ifndef __XFS_IOCTL32_H__
   7#define __XFS_IOCTL32_H__
   8
   9#include <linux/compat.h>
  10
  11/*
  12 * on 32-bit arches, ioctl argument structures may have different sizes
  13 * and/or alignment.  We define compat structures which match the
  14 * 32-bit sizes/alignments here, and their associated ioctl numbers.
  15 *
  16 * xfs_ioctl32.c contains routines to copy these structures in and out.
  17 */
  18
  19/* stock kernel-level ioctls we support */
  20#define XFS_IOC_GETVERSION_32   FS_IOC32_GETVERSION
  21
  22/*
  23 * On intel, even if sizes match, alignment and/or padding may differ.
  24 */
  25#if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
  26#define BROKEN_X86_ALIGNMENT
  27#define __compat_packed __attribute__((packed))
  28#else
  29#define __compat_packed
  30#endif
  31
  32typedef struct compat_xfs_bstime {
  33        old_time32_t    tv_sec;         /* seconds              */
  34        __s32           tv_nsec;        /* and nanoseconds      */
  35} compat_xfs_bstime_t;
  36
  37struct compat_xfs_bstat {
  38        __u64           bs_ino;         /* inode number                 */
  39        __u16           bs_mode;        /* type and mode                */
  40        __u16           bs_nlink;       /* number of links              */
  41        __u32           bs_uid;         /* user id                      */
  42        __u32           bs_gid;         /* group id                     */
  43        __u32           bs_rdev;        /* device value                 */
  44        __s32           bs_blksize;     /* block size                   */
  45        __s64           bs_size;        /* file size                    */
  46        compat_xfs_bstime_t bs_atime;   /* access time                  */
  47        compat_xfs_bstime_t bs_mtime;   /* modify time                  */
  48        compat_xfs_bstime_t bs_ctime;   /* inode change time            */
  49        int64_t         bs_blocks;      /* number of blocks             */
  50        __u32           bs_xflags;      /* extended flags               */
  51        __s32           bs_extsize;     /* extent size                  */
  52        __s32           bs_extents;     /* number of extents            */
  53        __u32           bs_gen;         /* generation count             */
  54        __u16           bs_projid_lo;   /* lower part of project id     */
  55#define bs_projid       bs_projid_lo    /* (previously just bs_projid)  */
  56        __u16           bs_forkoff;     /* inode fork offset in bytes   */
  57        __u16           bs_projid_hi;   /* high part of project id      */
  58        unsigned char   bs_pad[10];     /* pad space, unused            */
  59        __u32           bs_dmevmask;    /* DMIG event mask              */
  60        __u16           bs_dmstate;     /* DMIG state info              */
  61        __u16           bs_aextents;    /* attribute number of extents  */
  62} __compat_packed;
  63
  64struct compat_xfs_fsop_bulkreq {
  65        compat_uptr_t   lastip;         /* last inode # pointer         */
  66        __s32           icount;         /* count of entries in buffer   */
  67        compat_uptr_t   ubuffer;        /* user buffer for inode desc.  */
  68        compat_uptr_t   ocount;         /* output count pointer         */
  69};
  70
  71#define XFS_IOC_FSBULKSTAT_32 \
  72        _IOWR('X', 101, struct compat_xfs_fsop_bulkreq)
  73#define XFS_IOC_FSBULKSTAT_SINGLE_32 \
  74        _IOWR('X', 102, struct compat_xfs_fsop_bulkreq)
  75#define XFS_IOC_FSINUMBERS_32 \
  76        _IOWR('X', 103, struct compat_xfs_fsop_bulkreq)
  77
  78typedef struct compat_xfs_fsop_handlereq {
  79        __u32           fd;             /* fd for FD_TO_HANDLE          */
  80        compat_uptr_t   path;           /* user pathname                */
  81        __u32           oflags;         /* open flags                   */
  82        compat_uptr_t   ihandle;        /* user supplied handle         */
  83        __u32           ihandlen;       /* user supplied length         */
  84        compat_uptr_t   ohandle;        /* user buffer for handle       */
  85        compat_uptr_t   ohandlen;       /* user buffer length           */
  86} compat_xfs_fsop_handlereq_t;
  87
  88#define XFS_IOC_PATH_TO_FSHANDLE_32 \
  89        _IOWR('X', 104, struct compat_xfs_fsop_handlereq)
  90#define XFS_IOC_PATH_TO_HANDLE_32 \
  91        _IOWR('X', 105, struct compat_xfs_fsop_handlereq)
  92#define XFS_IOC_FD_TO_HANDLE_32 \
  93        _IOWR('X', 106, struct compat_xfs_fsop_handlereq)
  94#define XFS_IOC_OPEN_BY_HANDLE_32 \
  95        _IOWR('X', 107, struct compat_xfs_fsop_handlereq)
  96#define XFS_IOC_READLINK_BY_HANDLE_32 \
  97        _IOWR('X', 108, struct compat_xfs_fsop_handlereq)
  98
  99/* The bstat field in the swapext struct needs translation */
 100struct compat_xfs_swapext {
 101        int64_t                 sx_version;     /* version */
 102        int64_t                 sx_fdtarget;    /* fd of target file */
 103        int64_t                 sx_fdtmp;       /* fd of tmp file */
 104        xfs_off_t               sx_offset;      /* offset into file */
 105        xfs_off_t               sx_length;      /* leng from offset */
 106        char                    sx_pad[16];     /* pad space, unused */
 107        struct compat_xfs_bstat sx_stat;        /* stat of target b4 copy */
 108} __compat_packed;
 109
 110#define XFS_IOC_SWAPEXT_32      _IOWR('X', 109, struct compat_xfs_swapext)
 111
 112typedef struct compat_xfs_fsop_attrlist_handlereq {
 113        struct compat_xfs_fsop_handlereq hreq; /* handle interface structure */
 114        struct xfs_attrlist_cursor      pos; /* opaque cookie, list offset */
 115        __u32                           flags;  /* which namespace to use */
 116        __u32                           buflen; /* length of buffer supplied */
 117        compat_uptr_t                   buffer; /* returned names */
 118} __compat_packed compat_xfs_fsop_attrlist_handlereq_t;
 119
 120/* Note: actually this is read/write */
 121#define XFS_IOC_ATTRLIST_BY_HANDLE_32 \
 122        _IOW('X', 122, struct compat_xfs_fsop_attrlist_handlereq)
 123
 124/* am_opcodes defined in xfs_fs.h */
 125typedef struct compat_xfs_attr_multiop {
 126        __u32           am_opcode;
 127        __s32           am_error;
 128        compat_uptr_t   am_attrname;
 129        compat_uptr_t   am_attrvalue;
 130        __u32           am_length;
 131        __u32           am_flags;
 132} compat_xfs_attr_multiop_t;
 133
 134typedef struct compat_xfs_fsop_attrmulti_handlereq {
 135        struct compat_xfs_fsop_handlereq hreq; /* handle interface structure */
 136        __u32                           opcount;/* count of following multiop */
 137        /* ptr to compat_xfs_attr_multiop */
 138        compat_uptr_t                   ops; /* attr_multi data */
 139} compat_xfs_fsop_attrmulti_handlereq_t;
 140
 141#define XFS_IOC_ATTRMULTI_BY_HANDLE_32 \
 142        _IOW('X', 123, struct compat_xfs_fsop_attrmulti_handlereq)
 143
 144#ifdef BROKEN_X86_ALIGNMENT
 145/* on ia32 l_start is on a 32-bit boundary */
 146typedef struct compat_xfs_flock64 {
 147        __s16           l_type;
 148        __s16           l_whence;
 149        __s64           l_start __attribute__((packed));
 150                        /* len == 0 means until end of file */
 151        __s64           l_len __attribute__((packed));
 152        __s32           l_sysid;
 153        __u32           l_pid;
 154        __s32           l_pad[4];       /* reserve area */
 155} compat_xfs_flock64_t;
 156
 157#define XFS_IOC_ALLOCSP_32      _IOW('X', 10, struct compat_xfs_flock64)
 158#define XFS_IOC_FREESP_32       _IOW('X', 11, struct compat_xfs_flock64)
 159#define XFS_IOC_ALLOCSP64_32    _IOW('X', 36, struct compat_xfs_flock64)
 160#define XFS_IOC_FREESP64_32     _IOW('X', 37, struct compat_xfs_flock64)
 161#define XFS_IOC_RESVSP_32       _IOW('X', 40, struct compat_xfs_flock64)
 162#define XFS_IOC_UNRESVSP_32     _IOW('X', 41, struct compat_xfs_flock64)
 163#define XFS_IOC_RESVSP64_32     _IOW('X', 42, struct compat_xfs_flock64)
 164#define XFS_IOC_UNRESVSP64_32   _IOW('X', 43, struct compat_xfs_flock64)
 165#define XFS_IOC_ZERO_RANGE_32   _IOW('X', 57, struct compat_xfs_flock64)
 166
 167typedef struct compat_xfs_fsop_geom_v1 {
 168        __u32           blocksize;      /* filesystem (data) block size */
 169        __u32           rtextsize;      /* realtime extent size         */
 170        __u32           agblocks;       /* fsblocks in an AG            */
 171        __u32           agcount;        /* number of allocation groups  */
 172        __u32           logblocks;      /* fsblocks in the log          */
 173        __u32           sectsize;       /* (data) sector size, bytes    */
 174        __u32           inodesize;      /* inode size in bytes          */
 175        __u32           imaxpct;        /* max allowed inode space(%)   */
 176        __u64           datablocks;     /* fsblocks in data subvolume   */
 177        __u64           rtblocks;       /* fsblocks in realtime subvol  */
 178        __u64           rtextents;      /* rt extents in realtime subvol*/
 179        __u64           logstart;       /* starting fsblock of the log  */
 180        unsigned char   uuid[16];       /* unique id of the filesystem  */
 181        __u32           sunit;          /* stripe unit, fsblocks        */
 182        __u32           swidth;         /* stripe width, fsblocks       */
 183        __s32           version;        /* structure version            */
 184        __u32           flags;          /* superblock version flags     */
 185        __u32           logsectsize;    /* log sector size, bytes       */
 186        __u32           rtsectsize;     /* realtime sector size, bytes  */
 187        __u32           dirblocksize;   /* directory block size, bytes  */
 188} __attribute__((packed)) compat_xfs_fsop_geom_v1_t;
 189
 190#define XFS_IOC_FSGEOMETRY_V1_32  \
 191        _IOR('X', 100, struct compat_xfs_fsop_geom_v1)
 192
 193struct compat_xfs_inogrp {
 194        __u64           xi_startino;    /* starting inode number        */
 195        __s32           xi_alloccount;  /* # bits set in allocmask      */
 196        __u64           xi_allocmask;   /* mask of allocated inodes     */
 197} __attribute__((packed));
 198
 199/* These growfs input structures have padding on the end, so must translate */
 200typedef struct compat_xfs_growfs_data {
 201        __u64           newblocks;      /* new data subvol size, fsblocks */
 202        __u32           imaxpct;        /* new inode space percentage limit */
 203} __attribute__((packed)) compat_xfs_growfs_data_t;
 204
 205typedef struct compat_xfs_growfs_rt {
 206        __u64           newblocks;      /* new realtime size, fsblocks */
 207        __u32           extsize;        /* new realtime extent size, fsblocks */
 208} __attribute__((packed)) compat_xfs_growfs_rt_t;
 209
 210#define XFS_IOC_FSGROWFSDATA_32 _IOW('X', 110, struct compat_xfs_growfs_data)
 211#define XFS_IOC_FSGROWFSRT_32   _IOW('X', 112, struct compat_xfs_growfs_rt)
 212
 213#endif /* BROKEN_X86_ALIGNMENT */
 214
 215#endif /* __XFS_IOCTL32_H__ */
 216