1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Definitions of structures for vfsv0 quota format 4*4882a593Smuzhiyun */ 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun #ifndef _LINUX_QUOTAIO_V2_H 7*4882a593Smuzhiyun #define _LINUX_QUOTAIO_V2_H 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #include <linux/types.h> 10*4882a593Smuzhiyun #include <linux/quota.h> 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun /* 13*4882a593Smuzhiyun * Definitions of magics and versions of current quota files 14*4882a593Smuzhiyun */ 15*4882a593Smuzhiyun #define V2_INITQMAGICS {\ 16*4882a593Smuzhiyun 0xd9c01f11, /* USRQUOTA */\ 17*4882a593Smuzhiyun 0xd9c01927, /* GRPQUOTA */\ 18*4882a593Smuzhiyun 0xd9c03f14, /* PRJQUOTA */\ 19*4882a593Smuzhiyun } 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun #define V2_INITQVERSIONS {\ 22*4882a593Smuzhiyun 1, /* USRQUOTA */\ 23*4882a593Smuzhiyun 1, /* GRPQUOTA */\ 24*4882a593Smuzhiyun 1, /* PRJQUOTA */\ 25*4882a593Smuzhiyun } 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun /* First generic header */ 28*4882a593Smuzhiyun struct v2_disk_dqheader { 29*4882a593Smuzhiyun __le32 dqh_magic; /* Magic number identifying file */ 30*4882a593Smuzhiyun __le32 dqh_version; /* File version */ 31*4882a593Smuzhiyun }; 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun /* 34*4882a593Smuzhiyun * The following structure defines the format of the disk quota file 35*4882a593Smuzhiyun * (as it appears on disk) - the file is a radix tree whose leaves point 36*4882a593Smuzhiyun * to blocks of these structures. 37*4882a593Smuzhiyun */ 38*4882a593Smuzhiyun struct v2r0_disk_dqblk { 39*4882a593Smuzhiyun __le32 dqb_id; /* id this quota applies to */ 40*4882a593Smuzhiyun __le32 dqb_ihardlimit; /* absolute limit on allocated inodes */ 41*4882a593Smuzhiyun __le32 dqb_isoftlimit; /* preferred inode limit */ 42*4882a593Smuzhiyun __le32 dqb_curinodes; /* current # allocated inodes */ 43*4882a593Smuzhiyun __le32 dqb_bhardlimit; /* absolute limit on disk space (in QUOTABLOCK_SIZE) */ 44*4882a593Smuzhiyun __le32 dqb_bsoftlimit; /* preferred limit on disk space (in QUOTABLOCK_SIZE) */ 45*4882a593Smuzhiyun __le64 dqb_curspace; /* current space occupied (in bytes) */ 46*4882a593Smuzhiyun __le64 dqb_btime; /* time limit for excessive disk use */ 47*4882a593Smuzhiyun __le64 dqb_itime; /* time limit for excessive inode use */ 48*4882a593Smuzhiyun }; 49*4882a593Smuzhiyun 50*4882a593Smuzhiyun struct v2r1_disk_dqblk { 51*4882a593Smuzhiyun __le32 dqb_id; /* id this quota applies to */ 52*4882a593Smuzhiyun __le32 dqb_pad; 53*4882a593Smuzhiyun __le64 dqb_ihardlimit; /* absolute limit on allocated inodes */ 54*4882a593Smuzhiyun __le64 dqb_isoftlimit; /* preferred inode limit */ 55*4882a593Smuzhiyun __le64 dqb_curinodes; /* current # allocated inodes */ 56*4882a593Smuzhiyun __le64 dqb_bhardlimit; /* absolute limit on disk space (in QUOTABLOCK_SIZE) */ 57*4882a593Smuzhiyun __le64 dqb_bsoftlimit; /* preferred limit on disk space (in QUOTABLOCK_SIZE) */ 58*4882a593Smuzhiyun __le64 dqb_curspace; /* current space occupied (in bytes) */ 59*4882a593Smuzhiyun __le64 dqb_btime; /* time limit for excessive disk use */ 60*4882a593Smuzhiyun __le64 dqb_itime; /* time limit for excessive inode use */ 61*4882a593Smuzhiyun }; 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun /* Header with type and version specific information */ 64*4882a593Smuzhiyun struct v2_disk_dqinfo { 65*4882a593Smuzhiyun __le32 dqi_bgrace; /* Time before block soft limit becomes hard limit */ 66*4882a593Smuzhiyun __le32 dqi_igrace; /* Time before inode soft limit becomes hard limit */ 67*4882a593Smuzhiyun __le32 dqi_flags; /* Flags for quotafile (DQF_*) */ 68*4882a593Smuzhiyun __le32 dqi_blocks; /* Number of blocks in file */ 69*4882a593Smuzhiyun __le32 dqi_free_blk; /* Number of first free block in the list */ 70*4882a593Smuzhiyun __le32 dqi_free_entry; /* Number of block with at least one free entry */ 71*4882a593Smuzhiyun }; 72*4882a593Smuzhiyun 73*4882a593Smuzhiyun #define V2_DQINFOOFF sizeof(struct v2_disk_dqheader) /* Offset of info header in file */ 74*4882a593Smuzhiyun #define V2_DQBLKSIZE_BITS 10 /* Size of leaf block in tree */ 75*4882a593Smuzhiyun 76*4882a593Smuzhiyun #endif /* _LINUX_QUOTAIO_V2_H */ 77