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