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2 * Copyright (c) 1995, 2001 Silicon Graphics, Inc. All Rights Reserved.
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of version 2.1 of the GNU Lesser General Public License
6 * as published by the Free Software Foundation.
8 * This program is distributed in the hope that it would be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12 * Further, this software is distributed without any warranty that it is
13 * free of the rightful claim of any third person regarding infringement
14 * or the like. Any license provided herein, whether implied or
15 * otherwise, applies only to this software file. Patent licenses, if
16 * any, provided herein do not apply to combinations of this program with
17 * other software, or any other product whatsoever.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this program; if not, write the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307,
24 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
25 * Mountain View, CA 94043, or:
29 * For further information regarding this notice, see:
31 * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
39 * Disk quota - quotactl(2) commands for the XFS Quota Manager (XQM).
42 #define XQM_CMD(x) (('X'<<8)+(x)) /* note: forms first QCMD argument */
43 #define Q_XQUOTAON XQM_CMD(0x1) /* enable accounting/enforcement */
44 #define Q_XQUOTAOFF XQM_CMD(0x2) /* disable accounting/enforcement */
45 #define Q_XGETQUOTA XQM_CMD(0x3) /* get disk limits and usage */
46 #define Q_XSETQLIM XQM_CMD(0x4) /* set disk limits */
47 #define Q_XGETQSTAT XQM_CMD(0x5) /* get quota subsystem status */
48 #define Q_XQUOTARM XQM_CMD(0x6) /* free disk space used by dquots */
51 * fs_disk_quota structure:
53 * This contains the current quota information regarding a user/proj/group.
54 * It is 64-bit aligned, and all the blk units are in BBs (Basic Blocks) of
57 #define FS_DQUOT_VERSION 1 /* fs_disk_quota.d_version */
58 typedef struct fs_disk_quota
{
59 __s8 d_version
; /* version of this structure */
60 __s8 d_flags
; /* XFS_{USER,PROJ,GROUP}_QUOTA */
61 __u16 d_fieldmask
; /* field specifier */
62 __u32 d_id
; /* user, project, or group ID */
63 __u64 d_blk_hardlimit
;/* absolute limit on disk blks */
64 __u64 d_blk_softlimit
;/* preferred limit on disk blks */
65 __u64 d_ino_hardlimit
;/* maximum # allocated inodes */
66 __u64 d_ino_softlimit
;/* preferred inode limit */
67 __u64 d_bcount
; /* # disk blocks owned by the user */
68 __u64 d_icount
; /* # inodes owned by the user */
69 __s32 d_itimer
; /* zero if within inode limits */
70 /* if not, we refuse service */
71 __s32 d_btimer
; /* similar to above; for disk blocks */
72 __u16 d_iwarns
; /* # warnings issued wrt num inodes */
73 __u16 d_bwarns
; /* # warnings issued wrt disk blocks */
74 __s32 d_padding2
; /* padding2 - for future use */
75 __u64 d_rtb_hardlimit
;/* absolute limit on realtime blks */
76 __u64 d_rtb_softlimit
;/* preferred limit on RT disk blks */
77 __u64 d_rtbcount
; /* # realtime blocks owned */
78 __s32 d_rtbtimer
; /* similar to above; for RT disk blks */
79 __u16 d_rtbwarns
; /* # warnings issued wrt RT disk blks */
80 __s16 d_padding3
; /* padding3 - for future use */
81 char d_padding4
[8]; /* yet more padding */
85 * These fields are sent to Q_XSETQLIM to specify fields that need to change.
87 #define FS_DQ_ISOFT (1<<0)
88 #define FS_DQ_IHARD (1<<1)
89 #define FS_DQ_BSOFT (1<<2)
90 #define FS_DQ_BHARD (1<<3)
91 #define FS_DQ_RTBSOFT (1<<4)
92 #define FS_DQ_RTBHARD (1<<5)
93 #define FS_DQ_LIMIT_MASK (FS_DQ_ISOFT | FS_DQ_IHARD | FS_DQ_BSOFT | \
94 FS_DQ_BHARD | FS_DQ_RTBSOFT | FS_DQ_RTBHARD)
96 * These timers can only be set in super user's dquot. For others, timers are
97 * automatically started and stopped. Superusers timer values set the limits
98 * for the rest. In case these values are zero, the DQ_{F,B}TIMELIMIT values
99 * defined below are used.
100 * These values also apply only to the d_fieldmask field for Q_XSETQLIM.
102 #define FS_DQ_BTIMER (1<<6)
103 #define FS_DQ_ITIMER (1<<7)
104 #define FS_DQ_RTBTIMER (1<<8)
105 #define FS_DQ_TIMER_MASK (FS_DQ_BTIMER | FS_DQ_ITIMER | FS_DQ_RTBTIMER)
108 * The following constants define the default amount of time given a user
109 * before the soft limits are treated as hard limits (usually resulting
110 * in an allocation failure). These may be modified by the quotactl(2)
111 * system call with the Q_XSETQLIM command.
113 #define DQ_FTIMELIMIT (7 * 24*60*60) /* 1 week */
114 #define DQ_BTIMELIMIT (7 * 24*60*60) /* 1 week */
117 * Various flags related to quotactl(2). Only relevant to XFS filesystems.
119 #define XFS_QUOTA_UDQ_ACCT (1<<0) /* user quota accounting */
120 #define XFS_QUOTA_UDQ_ENFD (1<<1) /* user quota limits enforcement */
121 #define XFS_QUOTA_GDQ_ACCT (1<<2) /* group quota accounting */
122 #define XFS_QUOTA_GDQ_ENFD (1<<3) /* group quota limits enforcement */
124 #define XFS_USER_QUOTA (1<<0) /* user quota type */
125 #define XFS_PROJ_QUOTA (1<<1) /* (IRIX) project quota type */
126 #define XFS_GROUP_QUOTA (1<<2) /* group quota type */
129 * fs_quota_stat is the struct returned in Q_XGETQSTAT for a given file system.
130 * Provides a centralized way to get meta infomation about the quota subsystem.
131 * eg. space taken up for user and group quotas, number of dquots currently
134 #define FS_QSTAT_VERSION 1 /* fs_quota_stat.qs_version */
137 * Some basic infomation about 'quota files'.
139 typedef struct fs_qfilestat
{
140 __u64 qfs_ino
; /* inode number */
141 __u64 qfs_nblks
; /* number of BBs 512-byte-blks */
142 __u32 qfs_nextents
; /* number of extents */
145 typedef struct fs_quota_stat
{
146 __s8 qs_version
; /* version number for future changes */
147 __u16 qs_flags
; /* XFS_QUOTA_{U,P,G}DQ_{ACCT,ENFD} */
148 __s8 qs_pad
; /* unused */
149 fs_qfilestat_t qs_uquota
; /* user quota storage information */
150 fs_qfilestat_t qs_gquota
; /* group quota storage information */
151 __u32 qs_incoredqs
; /* number of dquots incore */
152 __s32 qs_btimelimit
; /* limit for blks timer */
153 __s32 qs_itimelimit
; /* limit for inodes timer */
154 __s32 qs_rtbtimelimit
;/* limit for rt blks timer */
155 __u16 qs_bwarnlimit
; /* limit for num warnings */
156 __u16 qs_iwarnlimit
; /* limit for num warnings */
159 #endif /* __XQM_H__ */