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Linux/fs/xfs/xfs_ioctl32.h

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  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_GETXFLAGS_32    FS_IOC32_GETFLAGS
 21 #define XFS_IOC_SETXFLAGS_32    FS_IOC32_SETFLAGS
 22 #define XFS_IOC_GETVERSION_32   FS_IOC32_GETVERSION
 23 
 24 /*
 25  * On intel, even if sizes match, alignment and/or padding may differ.
 26  */
 27 #if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
 28 #define BROKEN_X86_ALIGNMENT
 29 #define __compat_packed __attribute__((packed))
 30 #else
 31 #define __compat_packed
 32 #endif
 33 
 34 typedef struct compat_xfs_bstime {
 35         compat_time_t   tv_sec;         /* seconds              */
 36         __s32           tv_nsec;        /* and nanoseconds      */
 37 } compat_xfs_bstime_t;
 38 
 39 typedef struct compat_xfs_bstat {
 40         __u64           bs_ino;         /* inode number                 */
 41         __u16           bs_mode;        /* type and mode                */
 42         __u16           bs_nlink;       /* number of links              */
 43         __u32           bs_uid;         /* user id                      */
 44         __u32           bs_gid;         /* group id                     */
 45         __u32           bs_rdev;        /* device value                 */
 46         __s32           bs_blksize;     /* block size                   */
 47         __s64           bs_size;        /* file size                    */
 48         compat_xfs_bstime_t bs_atime;   /* access time                  */
 49         compat_xfs_bstime_t bs_mtime;   /* modify time                  */
 50         compat_xfs_bstime_t bs_ctime;   /* inode change time            */
 51         int64_t         bs_blocks;      /* number of blocks             */
 52         __u32           bs_xflags;      /* extended flags               */
 53         __s32           bs_extsize;     /* extent size                  */
 54         __s32           bs_extents;     /* number of extents            */
 55         __u32           bs_gen;         /* generation count             */
 56         __u16           bs_projid_lo;   /* lower part of project id     */
 57 #define bs_projid       bs_projid_lo    /* (previously just bs_projid)  */
 58         __u16           bs_forkoff;     /* inode fork offset in bytes   */
 59         __u16           bs_projid_hi;   /* high part of project id      */
 60         unsigned char   bs_pad[10];     /* pad space, unused            */
 61         __u32           bs_dmevmask;    /* DMIG event mask              */
 62         __u16           bs_dmstate;     /* DMIG state info              */
 63         __u16           bs_aextents;    /* attribute number of extents  */
 64 } __compat_packed compat_xfs_bstat_t;
 65 
 66 typedef struct compat_xfs_fsop_bulkreq {
 67         compat_uptr_t   lastip;         /* last inode # pointer         */
 68         __s32           icount;         /* count of entries in buffer   */
 69         compat_uptr_t   ubuffer;        /* user buffer for inode desc.  */
 70         compat_uptr_t   ocount;         /* output count pointer         */
 71 } compat_xfs_fsop_bulkreq_t;
 72 
 73 #define XFS_IOC_FSBULKSTAT_32 \
 74         _IOWR('X', 101, struct compat_xfs_fsop_bulkreq)
 75 #define XFS_IOC_FSBULKSTAT_SINGLE_32 \
 76         _IOWR('X', 102, struct compat_xfs_fsop_bulkreq)
 77 #define XFS_IOC_FSINUMBERS_32 \
 78         _IOWR('X', 103, struct compat_xfs_fsop_bulkreq)
 79 
 80 typedef struct compat_xfs_fsop_handlereq {
 81         __u32           fd;             /* fd for FD_TO_HANDLE          */
 82         compat_uptr_t   path;           /* user pathname                */
 83         __u32           oflags;         /* open flags                   */
 84         compat_uptr_t   ihandle;        /* user supplied handle         */
 85         __u32           ihandlen;       /* user supplied length         */
 86         compat_uptr_t   ohandle;        /* user buffer for handle       */
 87         compat_uptr_t   ohandlen;       /* user buffer length           */
 88 } compat_xfs_fsop_handlereq_t;
 89 
 90 #define XFS_IOC_PATH_TO_FSHANDLE_32 \
 91         _IOWR('X', 104, struct compat_xfs_fsop_handlereq)
 92 #define XFS_IOC_PATH_TO_HANDLE_32 \
 93         _IOWR('X', 105, struct compat_xfs_fsop_handlereq)
 94 #define XFS_IOC_FD_TO_HANDLE_32 \
 95         _IOWR('X', 106, struct compat_xfs_fsop_handlereq)
 96 #define XFS_IOC_OPEN_BY_HANDLE_32 \
 97         _IOWR('X', 107, struct compat_xfs_fsop_handlereq)
 98 #define XFS_IOC_READLINK_BY_HANDLE_32 \
 99         _IOWR('X', 108, struct compat_xfs_fsop_handlereq)
100 
101 /* The bstat field in the swapext struct needs translation */
102 typedef struct compat_xfs_swapext {
103         int64_t                 sx_version;     /* version */
104         int64_t                 sx_fdtarget;    /* fd of target file */
105         int64_t                 sx_fdtmp;       /* fd of tmp file */
106         xfs_off_t               sx_offset;      /* offset into file */
107         xfs_off_t               sx_length;      /* leng from offset */
108         char                    sx_pad[16];     /* pad space, unused */
109         compat_xfs_bstat_t      sx_stat;        /* stat of target b4 copy */
110 } __compat_packed compat_xfs_swapext_t;
111 
112 #define XFS_IOC_SWAPEXT_32      _IOWR('X', 109, struct compat_xfs_swapext)
113 
114 typedef struct compat_xfs_fsop_attrlist_handlereq {
115         struct compat_xfs_fsop_handlereq hreq; /* handle interface structure */
116         struct xfs_attrlist_cursor      pos; /* opaque cookie, list offset */
117         __u32                           flags;  /* which namespace to use */
118         __u32                           buflen; /* length of buffer supplied */
119         compat_uptr_t                   buffer; /* returned names */
120 } __compat_packed compat_xfs_fsop_attrlist_handlereq_t;
121 
122 /* Note: actually this is read/write */
123 #define XFS_IOC_ATTRLIST_BY_HANDLE_32 \
124         _IOW('X', 122, struct compat_xfs_fsop_attrlist_handlereq)
125 
126 /* am_opcodes defined in xfs_fs.h */
127 typedef struct compat_xfs_attr_multiop {
128         __u32           am_opcode;
129         __s32           am_error;
130         compat_uptr_t   am_attrname;
131         compat_uptr_t   am_attrvalue;
132         __u32           am_length;
133         __u32           am_flags;
134 } compat_xfs_attr_multiop_t;
135 
136 typedef struct compat_xfs_fsop_attrmulti_handlereq {
137         struct compat_xfs_fsop_handlereq hreq; /* handle interface structure */
138         __u32                           opcount;/* count of following multiop */
139         /* ptr to compat_xfs_attr_multiop */
140         compat_uptr_t                   ops; /* attr_multi data */
141 } compat_xfs_fsop_attrmulti_handlereq_t;
142 
143 #define XFS_IOC_ATTRMULTI_BY_HANDLE_32 \
144         _IOW('X', 123, struct compat_xfs_fsop_attrmulti_handlereq)
145 
146 typedef struct compat_xfs_fsop_setdm_handlereq {
147         struct compat_xfs_fsop_handlereq hreq;  /* handle information   */
148         /* ptr to struct fsdmidata */
149         compat_uptr_t                   data;   /* DMAPI data   */
150 } compat_xfs_fsop_setdm_handlereq_t;
151 
152 #define XFS_IOC_FSSETDM_BY_HANDLE_32 \
153         _IOW('X', 121, struct compat_xfs_fsop_setdm_handlereq)
154 
155 #ifdef BROKEN_X86_ALIGNMENT
156 /* on ia32 l_start is on a 32-bit boundary */
157 typedef struct compat_xfs_flock64 {
158         __s16           l_type;
159         __s16           l_whence;
160         __s64           l_start __attribute__((packed));
161                         /* len == 0 means until end of file */
162         __s64           l_len __attribute__((packed));
163         __s32           l_sysid;
164         __u32           l_pid;
165         __s32           l_pad[4];       /* reserve area */
166 } compat_xfs_flock64_t;
167 
168 #define XFS_IOC_ALLOCSP_32      _IOW('X', 10, struct compat_xfs_flock64)
169 #define XFS_IOC_FREESP_32       _IOW('X', 11, struct compat_xfs_flock64)
170 #define XFS_IOC_ALLOCSP64_32    _IOW('X', 36, struct compat_xfs_flock64)
171 #define XFS_IOC_FREESP64_32     _IOW('X', 37, struct compat_xfs_flock64)
172 #define XFS_IOC_RESVSP_32       _IOW('X', 40, struct compat_xfs_flock64)
173 #define XFS_IOC_UNRESVSP_32     _IOW('X', 41, struct compat_xfs_flock64)
174 #define XFS_IOC_RESVSP64_32     _IOW('X', 42, struct compat_xfs_flock64)
175 #define XFS_IOC_UNRESVSP64_32   _IOW('X', 43, struct compat_xfs_flock64)
176 #define XFS_IOC_ZERO_RANGE_32   _IOW('X', 57, struct compat_xfs_flock64)
177 
178 typedef struct compat_xfs_fsop_geom_v1 {
179         __u32           blocksize;      /* filesystem (data) block size */
180         __u32           rtextsize;      /* realtime extent size         */
181         __u32           agblocks;       /* fsblocks in an AG            */
182         __u32           agcount;        /* number of allocation groups  */
183         __u32           logblocks;      /* fsblocks in the log          */
184         __u32           sectsize;       /* (data) sector size, bytes    */
185         __u32           inodesize;      /* inode size in bytes          */
186         __u32           imaxpct;        /* max allowed inode space(%)   */
187         __u64           datablocks;     /* fsblocks in data subvolume   */
188         __u64           rtblocks;       /* fsblocks in realtime subvol  */
189         __u64           rtextents;      /* rt extents in realtime subvol*/
190         __u64           logstart;       /* starting fsblock of the log  */
191         unsigned char   uuid[16];       /* unique id of the filesystem  */
192         __u32           sunit;          /* stripe unit, fsblocks        */
193         __u32           swidth;         /* stripe width, fsblocks       */
194         __s32           version;        /* structure version            */
195         __u32           flags;          /* superblock version flags     */
196         __u32           logsectsize;    /* log sector size, bytes       */
197         __u32           rtsectsize;     /* realtime sector size, bytes  */
198         __u32           dirblocksize;   /* directory block size, bytes  */
199 } __attribute__((packed)) compat_xfs_fsop_geom_v1_t;
200 
201 #define XFS_IOC_FSGEOMETRY_V1_32  \
202         _IOR('X', 100, struct compat_xfs_fsop_geom_v1)
203 
204 typedef struct compat_xfs_inogrp {
205         __u64           xi_startino;    /* starting inode number        */
206         __s32           xi_alloccount;  /* # bits set in allocmask      */
207         __u64           xi_allocmask;   /* mask of allocated inodes     */
208 } __attribute__((packed)) compat_xfs_inogrp_t;
209 
210 /* These growfs input structures have padding on the end, so must translate */
211 typedef struct compat_xfs_growfs_data {
212         __u64           newblocks;      /* new data subvol size, fsblocks */
213         __u32           imaxpct;        /* new inode space percentage limit */
214 } __attribute__((packed)) compat_xfs_growfs_data_t;
215 
216 typedef struct compat_xfs_growfs_rt {
217         __u64           newblocks;      /* new realtime size, fsblocks */
218         __u32           extsize;        /* new realtime extent size, fsblocks */
219 } __attribute__((packed)) compat_xfs_growfs_rt_t;
220 
221 #define XFS_IOC_FSGROWFSDATA_32 _IOW('X', 110, struct compat_xfs_growfs_data)
222 #define XFS_IOC_FSGROWFSRT_32   _IOW('X', 112, struct compat_xfs_growfs_rt)
223 
224 #endif /* BROKEN_X86_ALIGNMENT */
225 
226 #endif /* __XFS_IOCTL32_H__ */
227 

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