1 /*
2 * Copyright (c) 1995-2001,2004 Silicon Graphics, Inc. All Rights Reserved.
3 *
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.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
16 * USA
17 *
18 * Contact information: Silicon Graphics, Inc., 1500 Crittenden Lane,
19 * Mountain View, CA 94043, USA, or: http://www.sgi.com
20 */
21 #ifndef _LINUX_DQBLK_XFS_H
22 #define _LINUX_DQBLK_XFS_H
23
24 #include <linux/types.h>
25
26 /*
27 * Disk quota - quotactl(2) commands for the XFS Quota Manager (XQM).
28 */
29
30 #define XQM_CMD(x) (('X'<<8)+(x)) /* note: forms first QCMD argument */
31 #define Q_XQUOTAON XQM_CMD(1) /* enable accounting/enforcement */
32 #define Q_XQUOTAOFF XQM_CMD(2) /* disable accounting/enforcement */
33 #define Q_XGETQUOTA XQM_CMD(3) /* get disk limits and usage */
34 #define Q_XSETQLIM XQM_CMD(4) /* set disk limits */
35 #define Q_XGETQSTAT XQM_CMD(5) /* get quota subsystem status */
36 #define Q_XQUOTARM XQM_CMD(6) /* free disk space used by dquots */
37
38 /*
39 * fs_disk_quota structure:
40 *
41 * This contains the current quota information regarding a user/proj/group.
42 * It is 64-bit aligned, and all the blk units are in BBs (Basic Blocks) of
43 * 512 bytes.
44 */
45 #define FS_DQUOT_VERSION 1 /* fs_disk_quota.d_version */
46 typedef struct fs_disk_quota {
47 __s8 d_version; /* version of this structure */
48 __s8 d_flags; /* XFS_{USER,PROJ,GROUP}_QUOTA */
49 __u16 d_fieldmask; /* field specifier */
50 __u32 d_id; /* user, project, or group ID */
51 __u64 d_blk_hardlimit;/* absolute limit on disk blks */
52 __u64 d_blk_softlimit;/* preferred limit on disk blks */
53 __u64 d_ino_hardlimit;/* maximum # allocated inodes */
54 __u64 d_ino_softlimit;/* preferred inode limit */
55 __u64 d_bcount; /* # disk blocks owned by the user */
56 __u64 d_icount; /* # inodes owned by the user */
57 __s32 d_itimer; /* zero if within inode limits */
58 /* if not, we refuse service */
59 __s32 d_btimer; /* similar to above; for disk blocks */
60 __u16 d_iwarns; /* # warnings issued wrt num inodes */
61 __u16 d_bwarns; /* # warnings issued wrt disk blocks */
62 __s32 d_padding2; /* padding2 - for future use */
63 __u64 d_rtb_hardlimit;/* absolute limit on realtime blks */
64 __u64 d_rtb_softlimit;/* preferred limit on RT disk blks */
65 __u64 d_rtbcount; /* # realtime blocks owned */
66 __s32 d_rtbtimer; /* similar to above; for RT disk blks */
67 __u16 d_rtbwarns; /* # warnings issued wrt RT disk blks */
68 __s16 d_padding3; /* padding3 - for future use */
69 char d_padding4[8]; /* yet more padding */
70 } fs_disk_quota_t;
71
72 /*
73 * These fields are sent to Q_XSETQLIM to specify fields that need to change.
74 */
75 #define FS_DQ_ISOFT (1<<0)
76 #define FS_DQ_IHARD (1<<1)
77 #define FS_DQ_BSOFT (1<<2)
78 #define FS_DQ_BHARD (1<<3)
79 #define FS_DQ_RTBSOFT (1<<4)
80 #define FS_DQ_RTBHARD (1<<5)
81 #define FS_DQ_LIMIT_MASK (FS_DQ_ISOFT | FS_DQ_IHARD | FS_DQ_BSOFT | \
82 FS_DQ_BHARD | FS_DQ_RTBSOFT | FS_DQ_RTBHARD)
83 /*
84 * These timers can only be set in super user's dquot. For others, timers are
85 * automatically started and stopped. Superusers timer values set the limits
86 * for the rest. In case these values are zero, the DQ_{F,B}TIMELIMIT values
87 * defined below are used.
88 * These values also apply only to the d_fieldmask field for Q_XSETQLIM.
89 */
90 #define FS_DQ_BTIMER (1<<6)
91 #define FS_DQ_ITIMER (1<<7)
92 #define FS_DQ_RTBTIMER (1<<8)
93 #define FS_DQ_TIMER_MASK (FS_DQ_BTIMER | FS_DQ_ITIMER | FS_DQ_RTBTIMER)
94
95 /*
96 * Warning counts are set in both super user's dquot and others. For others,
97 * warnings are set/cleared by the administrators (or automatically by going
98 * below the soft limit). Superusers warning values set the warning limits
99 * for the rest. In case these values are zero, the DQ_{F,B}WARNLIMIT values
100 * defined below are used.
101 * These values also apply only to the d_fieldmask field for Q_XSETQLIM.
102 */
103 #define FS_DQ_BWARNS (1<<9)
104 #define FS_DQ_IWARNS (1<<10)
105 #define FS_DQ_RTBWARNS (1<<11)
106 #define FS_DQ_WARNS_MASK (FS_DQ_BWARNS | FS_DQ_IWARNS | FS_DQ_RTBWARNS)
107
108 /*
109 * Various flags related to quotactl(2). Only relevant to XFS filesystems.
110 */
111 #define XFS_QUOTA_UDQ_ACCT (1<<0) /* user quota accounting */
112 #define XFS_QUOTA_UDQ_ENFD (1<<1) /* user quota limits enforcement */
113 #define XFS_QUOTA_GDQ_ACCT (1<<2) /* group quota accounting */
114 #define XFS_QUOTA_GDQ_ENFD (1<<3) /* group quota limits enforcement */
115 #define XFS_QUOTA_PDQ_ACCT (1<<4) /* project quota accounting */
116 #define XFS_QUOTA_PDQ_ENFD (1<<5) /* project quota limits enforcement */
117
118 #define XFS_USER_QUOTA (1<<0) /* user quota type */
119 #define XFS_PROJ_QUOTA (1<<1) /* project quota type */
120 #define XFS_GROUP_QUOTA (1<<2) /* group quota type */
121
122 /*
123 * fs_quota_stat is the struct returned in Q_XGETQSTAT for a given file system.
124 * Provides a centralized way to get meta infomation about the quota subsystem.
125 * eg. space taken up for user and group quotas, number of dquots currently
126 * incore.
127 */
128 #define FS_QSTAT_VERSION 1 /* fs_quota_stat.qs_version */
129
130 /*
131 * Some basic infomation about 'quota files'.
132 */
133 typedef struct fs_qfilestat {
134 __u64 qfs_ino; /* inode number */
135 __u64 qfs_nblks; /* number of BBs 512-byte-blks */
136 __u32 qfs_nextents; /* number of extents */
137 } fs_qfilestat_t;
138
139 typedef struct fs_quota_stat {
140 __s8 qs_version; /* version number for future changes */
141 __u16 qs_flags; /* XFS_QUOTA_{U,P,G}DQ_{ACCT,ENFD} */
142 __s8 qs_pad; /* unused */
143 fs_qfilestat_t qs_uquota; /* user quota storage information */
144 fs_qfilestat_t qs_gquota; /* group quota storage information */
145 __u32 qs_incoredqs; /* number of dquots incore */
146 __s32 qs_btimelimit; /* limit for blks timer */
147 __s32 qs_itimelimit; /* limit for inodes timer */
148 __s32 qs_rtbtimelimit;/* limit for rt blks timer */
149 __u16 qs_bwarnlimit; /* limit for num warnings */
150 __u16 qs_iwarnlimit; /* limit for num warnings */
151 } fs_quota_stat_t;
152
153 #endif /* _LINUX_DQBLK_XFS_H */
154
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