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 
46 typedef struct compat_xfs_bstime {
47 	compat_time_t	tv_sec;		/* seconds		*/
48 	__s32		tv_nsec;	/* and nanoseconds	*/
49 } compat_xfs_bstime_t;
50 
51 typedef 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 
77 typedef 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 
91 typedef 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 */
113 typedef 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 
125 typedef 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 */
138 typedef 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 
147 typedef 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 
157 typedef 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 */
168 typedef 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 
189 typedef 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 
215 typedef 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 */
222 typedef 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 
227 typedef 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