1/* This just represents the non-kernel parts of <linux/quota.h>.
2 Copyright (C) 1998-2024 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19/*
20 * Copyright (c) 1982, 1986 Regents of the University of California.
21 * All rights reserved.
22 *
23 * This code is derived from software contributed to Berkeley by
24 * Robert Elz at The University of Melbourne.
25 *
26 * Redistribution and use in source and binary forms, with or without
27 * modification, are permitted provided that the following conditions
28 * are met:
29 * 1. Redistributions of source code must retain the above copyright
30 * notice, this list of conditions and the following disclaimer.
31 * 2. Redistributions in binary form must reproduce the above copyright
32 * notice, this list of conditions and the following disclaimer in the
33 * documentation and/or other materials provided with the distribution.
34 * 4. Neither the name of the University nor the names of its contributors
35 * may be used to endorse or promote products derived from this software
36 * without specific prior written permission.
37 *
38 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
39 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
41 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
42 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
43 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
44 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
45 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
46 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
47 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
48 * SUCH DAMAGE.
49 */
50
51#ifndef _SYS_QUOTA_H
52#define _SYS_QUOTA_H 1
53
54#include <features.h>
55#include <sys/types.h>
56
57#include <linux/quota.h>
58
59/*
60 * Convert diskblocks to blocks and the other way around.
61 * currently only to fool the BSD source. :-)
62 */
63#define dbtob(num) ((num) << 10)
64#define btodb(num) ((num) >> 10)
65
66/*
67 * Convert count of filesystem blocks to diskquota blocks, meant for
68 * filesystems where i_blksize != 1024.
69 */
70#define fs_to_dq_blocks(num, blksize) (((num) * (blksize)) / 1024)
71
72/*
73 * Definitions for disk quotas imposed on the average user
74 * (big brother finally hits Linux).
75 *
76 * The following constants define the amount of time given a user
77 * before the soft limits are treated as hard limits (usually resulting
78 * in an allocation failure). The timer is started when the user crosses
79 * their soft limit, it is reset when they go below their soft limit.
80 */
81#define MAX_IQ_TIME 604800 /* (7*24*60*60) 1 week */
82#define MAX_DQ_TIME 604800 /* (7*24*60*60) 1 week */
83
84#define QUOTAFILENAME "quota"
85#define QUOTAGROUP "staff"
86
87#define NR_DQHASH 43 /* Just an arbitrary number any suggestions ? */
88#define NR_DQUOTS 256 /* Number of quotas active at one time */
89
90/* Old name for struct if_dqblk. */
91struct dqblk
92 {
93 __uint64_t dqb_bhardlimit; /* absolute limit on disk quota blocks alloc */
94 __uint64_t dqb_bsoftlimit; /* preferred limit on disk quota blocks */
95 __uint64_t dqb_curspace; /* current quota block count */
96 __uint64_t dqb_ihardlimit; /* maximum # allocated inodes */
97 __uint64_t dqb_isoftlimit; /* preferred inode limit */
98 __uint64_t dqb_curinodes; /* current # allocated inodes */
99 __uint64_t dqb_btime; /* time limit for excessive disk use */
100 __uint64_t dqb_itime; /* time limit for excessive files */
101 __uint32_t dqb_valid; /* bitmask of QIF_* constants */
102 };
103
104/*
105 * Shorthand notation.
106 */
107#define dq_bhardlimit dq_dqb.dqb_bhardlimit
108#define dq_bsoftlimit dq_dqb.dqb_bsoftlimit
109#define dq_curspace dq_dqb.dqb_curspace
110#define dq_valid dq_dqb.dqb_valid
111#define dq_ihardlimit dq_dqb.dqb_ihardlimit
112#define dq_isoftlimit dq_dqb.dqb_isoftlimit
113#define dq_curinodes dq_dqb.dqb_curinodes
114#define dq_btime dq_dqb.dqb_btime
115#define dq_itime dq_dqb.dqb_itime
116
117#define dqoff(UID) ((__loff_t)((UID) * sizeof (struct dqblk)))
118
119/* Old name for struct if_dqinfo. */
120struct dqinfo
121 {
122 __uint64_t dqi_bgrace;
123 __uint64_t dqi_igrace;
124 __uint32_t dqi_flags;
125 __uint32_t dqi_valid;
126 };
127
128__BEGIN_DECLS
129
130extern int quotactl (int __cmd, const char *__special, int __id,
131 __caddr_t __addr) __THROW;
132
133__END_DECLS
134
135#endif /* sys/quota.h */
136

source code of glibc/sysdeps/unix/sysv/linux/sys/quota.h