quota.h

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/*
 *
 * Header file for disk format of new quotafile format
 *
 * Copied essential definitions and structures for mkfs.f2fs from quotaio.h
 *
 * Aditya Kali <adityakali@google.com>
 * Jan Kara <jack@suse.cz>
 * Hyojun Kim <hyojun@google.com> - Ported to f2fs-tools
 *
 */
#ifndef F2FS_QUOTA_H
#define F2FS_QUOTA_H
 
enum quota_type {
    USRQUOTA = 0,
    GRPQUOTA = 1,
    PRJQUOTA = 2,
    MAXQUOTAS = 3,
};
 
#if MAXQUOTAS > 32
#error "cannot have more than 32 quota types to fit in qtype_bits"
#endif
 
#define QUOTA_USR_BIT (1 << USRQUOTA)
#define QUOTA_GRP_BIT (1 << GRPQUOTA)
#define QUOTA_PRJ_BIT (1 << PRJQUOTA)
#define QUOTA_ALL_BIT (QUOTA_USR_BIT | QUOTA_GRP_BIT | QUOTA_PRJ_BIT)
 
/*
 * Definitions of magics and versions of current quota files
 */
#define INITQMAGICS {\
    0xd9c01f11, /* USRQUOTA */\
    0xd9c01927, /* GRPQUOTA */\
    0xd9c03f14      /* PRJQUOTA */\
}
 
#define V2_DQINFOOFF    sizeof(struct v2_disk_dqheader) /* Offset of info header in file */
 
#define MAX_IQ_TIME  604800 /* (7*24*60*60) 1 week */
#define MAX_DQ_TIME  604800 /* (7*24*60*60) 1 week */
 
#define QT_TREEOFF  1   /* Offset of tree in file in blocks */
 
struct v2_disk_dqheader {
    uint32_t dqh_magic; /* Magic number identifying file */
    uint32_t dqh_version;   /* File version */
};
 
static_assert(sizeof(struct v2_disk_dqheader) == 8, "");
 
/* Header with type and version specific information */
struct v2_disk_dqinfo {
    uint32_t dqi_bgrace;    /* Time before block soft limit becomes hard limit */
    uint32_t dqi_igrace;    /* Time before inode soft limit becomes hard limit */
    uint32_t dqi_flags; /* Flags for quotafile (DQF_*) */
    uint32_t dqi_blocks;    /* Number of blocks in file */
    uint32_t dqi_free_blk;  /* Number of first free block in the list */
    uint32_t dqi_free_entry;    /* Number of block with at least one free entry */
};
 
static_assert(sizeof(struct v2_disk_dqinfo) == 24, "");
 
struct v2r1_disk_dqblk {
    __le32 dqb_id;      /* id this quota applies to */
    __le32 dqb_pad;
    __le64 dqb_ihardlimit;  /* absolute limit on allocated inodes */
    __le64 dqb_isoftlimit;  /* preferred inode limit */
    __le64 dqb_curinodes;   /* current # allocated inodes */
    __le64 dqb_bhardlimit;  /* absolute limit on disk space
                 * (in QUOTABLOCK_SIZE) */
    __le64 dqb_bsoftlimit;  /* preferred limit on disk space
                 * (in QUOTABLOCK_SIZE) */
    __le64 dqb_curspace;    /* current space occupied (in bytes) */
    __le64 dqb_btime;       /* time limit for excessive disk use */
    __le64 dqb_itime;       /* time limit for excessive inode use */
};
 
static_assert(sizeof(struct v2r1_disk_dqblk) == 72, "");
 
#endif