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 */ 77