fs/xfs/xfs_ioctl32.h

   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_X86_64)
  26 #define BROKEN_X86_ALIGNMENT
  27 #define __compat_packed __attribute__((packed))
  28 #else
  29 #define __compat_packed
  30 #endif
  31
  32 typedef struct compat_xfs_bstime {
  33         old_time32_t    tv_sec;         /* seconds              */
  34         __s32           tv_nsec;        /* and nanoseconds      */
  35 } compat_xfs_bstime_t;
  36
  37 struct 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
  64 struct 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
  78 typedef 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 */
 100 struct 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
 112 typedef 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 */
 125 typedef 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
 134 typedef 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 typedef struct compat_xfs_fsop_geom_v1 {
 146         __u32           blocksize;      /* filesystem (data) block size */
 147         __u32           rtextsize;      /* realtime extent size         */
 148         __u32           agblocks;       /* fsblocks in an AG            */
 149         __u32           agcount;        /* number of allocation groups  */
 150         __u32           logblocks;      /* fsblocks in the log          */
 151         __u32           sectsize;       /* (data) sector size, bytes    */
 152         __u32           inodesize;      /* inode size in bytes          */
 153         __u32           imaxpct;        /* max allowed inode space(%)   */
 154         __u64           datablocks;     /* fsblocks in data subvolume   */
 155         __u64           rtblocks;       /* fsblocks in realtime subvol  */
 156         __u64           rtextents;      /* rt extents in realtime subvol*/
 157         __u64           logstart;       /* starting fsblock of the log  */
 158         unsigned char   uuid[16];       /* unique id of the filesystem  */
 159         __u32           sunit;          /* stripe unit, fsblocks        */
 160         __u32           swidth;         /* stripe width, fsblocks       */
 161         __s32           version;        /* structure version            */
 162         __u32           flags;          /* superblock version flags     */
 163         __u32           logsectsize;    /* log sector size, bytes       */
 164         __u32           rtsectsize;     /* realtime sector size, bytes  */
 165         __u32           dirblocksize;   /* directory block size, bytes  */
 166 } __attribute__((packed)) compat_xfs_fsop_geom_v1_t;
 167
 168 #define XFS_IOC_FSGEOMETRY_V1_32  \
 169         _IOR('X', 100, struct compat_xfs_fsop_geom_v1)
 170
 171 struct compat_xfs_inogrp {
 172         __u64           xi_startino;    /* starting inode number        */
 173         __s32           xi_alloccount;  /* # bits set in allocmask      */
 174         __u64           xi_allocmask;   /* mask of allocated inodes     */
 175 } __attribute__((packed));
 176
 177 /* These growfs input structures have padding on the end, so must translate */
 178 typedef struct compat_xfs_growfs_data {
 179         __u64           newblocks;      /* new data subvol size, fsblocks */
 180         __u32           imaxpct;        /* new inode space percentage limit */
 181 } __attribute__((packed)) compat_xfs_growfs_data_t;
 182
 183 typedef struct compat_xfs_growfs_rt {
 184         __u64           newblocks;      /* new realtime size, fsblocks */
 185         __u32           extsize;        /* new realtime extent size, fsblocks */
 186 } __attribute__((packed)) compat_xfs_growfs_rt_t;
 187
 188 #define XFS_IOC_FSGROWFSDATA_32 _IOW('X', 110, struct compat_xfs_growfs_data)
 189 #define XFS_IOC_FSGROWFSRT_32   _IOW('X', 112, struct compat_xfs_growfs_rt)
 190
 191 #endif /* BROKEN_X86_ALIGNMENT */
 192
 193 #endif /* __XFS_IOCTL32_H__ */