1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Definitions of structures for vfsv0 quota format
4 */
5
6 #ifndef _LINUX_QUOTAIO_V2_H
7 #define _LINUX_QUOTAIO_V2_H
8
9 #include <linux/types.h>
10 #include <linux/quota.h>
11
12 /*
13 * Definitions of magics and versions of current quota files
14 */
15 #define V2_INITQMAGICS {\
16 0xd9c01f11, /* USRQUOTA */\
17 0xd9c01927, /* GRPQUOTA */\
18 0xd9c03f14, /* PRJQUOTA */\
19 }
20
21 #define V2_INITQVERSIONS {\
22 1, /* USRQUOTA */\
23 1, /* GRPQUOTA */\
24 1, /* PRJQUOTA */\
25 }
26
27 /* First generic header */
28 struct v2_disk_dqheader {
29 __le32 dqh_magic; /* Magic number identifying file */
30 __le32 dqh_version; /* File version */
31 };
32
33 /*
34 * The following structure defines the format of the disk quota file
35 * (as it appears on disk) - the file is a radix tree whose leaves point
36 * to blocks of these structures.
37 */
38 struct v2r0_disk_dqblk {
39 __le32 dqb_id; /* id this quota applies to */
40 __le32 dqb_ihardlimit; /* absolute limit on allocated inodes */
41 __le32 dqb_isoftlimit; /* preferred inode limit */
42 __le32 dqb_curinodes; /* current # allocated inodes */
43 __le32 dqb_bhardlimit; /* absolute limit on disk space (in QUOTABLOCK_SIZE) */
44 __le32 dqb_bsoftlimit; /* preferred limit on disk space (in QUOTABLOCK_SIZE) */
45 __le64 dqb_curspace; /* current space occupied (in bytes) */
46 __le64 dqb_btime; /* time limit for excessive disk use */
47 __le64 dqb_itime; /* time limit for excessive inode use */
48 };
49
50 struct v2r1_disk_dqblk {
51 __le32 dqb_id; /* id this quota applies to */
52 __le32 dqb_pad;
53 __le64 dqb_ihardlimit; /* absolute limit on allocated inodes */
54 __le64 dqb_isoftlimit; /* preferred inode limit */
55 __le64 dqb_curinodes; /* current # allocated inodes */
56 __le64 dqb_bhardlimit; /* absolute limit on disk space (in QUOTABLOCK_SIZE) */
57 __le64 dqb_bsoftlimit; /* preferred limit on disk space (in QUOTABLOCK_SIZE) */
58 __le64 dqb_curspace; /* current space occupied (in bytes) */
59 __le64 dqb_btime; /* time limit for excessive disk use */
60 __le64 dqb_itime; /* time limit for excessive inode use */
61 };
62
63 /* Header with type and version specific information */
64 struct v2_disk_dqinfo {
65 __le32 dqi_bgrace; /* Time before block soft limit becomes hard limit */
66 __le32 dqi_igrace; /* Time before inode soft limit becomes hard limit */
67 __le32 dqi_flags; /* Flags for quotafile (DQF_*) */
68 __le32 dqi_blocks; /* Number of blocks in file */
69 __le32 dqi_free_blk; /* Number of first free block in the list */
70 __le32 dqi_free_entry; /* Number of block with at least one free entry */
71 };
72
73 #define V2_DQINFOOFF sizeof(struct v2_disk_dqheader) /* Offset of info header in file */
74 #define V2_DQBLKSIZE_BITS 10 /* Size of leaf block in tree */
75
76 #endif /* _LINUX_QUOTAIO_V2_H */