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1/* SPDX-License-Identifier: GPL-2.0 */2/*3 * Definitions of structures for vfsv0 quota format4 */5 6#ifndef _LINUX_QUOTAIO_V2_H7#define _LINUX_QUOTAIO_V2_H8 9#include <linux/types.h>10#include <linux/quota.h>11 12/*13 * Definitions of magics and versions of current quota files14 */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 */28struct 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 file35 * (as it appears on disk) - the file is a radix tree whose leaves point36 * to blocks of these structures.37 */38struct 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 50struct 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 */64struct 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 */77