1/*
2 * Copyright (c) 1982, 1986 Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Robert Elz at The University of Melbourne.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#ifndef _UAPI_LINUX_QUOTA_
34#define _UAPI_LINUX_QUOTA_
35
36#include <linux/errno.h>
37#include <linux/types.h>
38
39#define __DQUOT_VERSION__	"dquot_6.5.2"
40
41#define MAXQUOTAS 2
42#define USRQUOTA  0		/* element used for user quotas */
43#define GRPQUOTA  1		/* element used for group quotas */
44
45/*
46 * Definitions for the default names of the quotas files.
47 */
48#define INITQFNAMES { \
49	"user",    /* USRQUOTA */ \
50	"group",   /* GRPQUOTA */ \
51	"undefined", \
52};
53
54/*
55 * Command definitions for the 'quotactl' system call.
56 * The commands are broken into a main command defined below
57 * and a subcommand that is used to convey the type of
58 * quota that is being manipulated (see above).
59 */
60#define SUBCMDMASK  0x00ff
61#define SUBCMDSHIFT 8
62#define QCMD(cmd, type)  (((cmd) << SUBCMDSHIFT) | ((type) & SUBCMDMASK))
63
64#define Q_SYNC     0x800001	/* sync disk copy of a filesystems quotas */
65#define Q_QUOTAON  0x800002	/* turn quotas on */
66#define Q_QUOTAOFF 0x800003	/* turn quotas off */
67#define Q_GETFMT   0x800004	/* get quota format used on given filesystem */
68#define Q_GETINFO  0x800005	/* get information about quota files */
69#define Q_SETINFO  0x800006	/* set information about quota files */
70#define Q_GETQUOTA 0x800007	/* get user quota structure */
71#define Q_SETQUOTA 0x800008	/* set user quota structure */
72
73/* Quota format type IDs */
74#define	QFMT_VFS_OLD 1
75#define	QFMT_VFS_V0 2
76#define QFMT_OCFS2 3
77#define	QFMT_VFS_V1 4
78
79/* Size of block in which space limits are passed through the quota
80 * interface */
81#define QIF_DQBLKSIZE_BITS 10
82#define QIF_DQBLKSIZE (1 << QIF_DQBLKSIZE_BITS)
83
84/*
85 * Quota structure used for communication with userspace via quotactl
86 * Following flags are used to specify which fields are valid
87 */
88enum {
89	QIF_BLIMITS_B = 0,
90	QIF_SPACE_B,
91	QIF_ILIMITS_B,
92	QIF_INODES_B,
93	QIF_BTIME_B,
94	QIF_ITIME_B,
95};
96
97#define QIF_BLIMITS	(1 << QIF_BLIMITS_B)
98#define QIF_SPACE	(1 << QIF_SPACE_B)
99#define QIF_ILIMITS	(1 << QIF_ILIMITS_B)
100#define QIF_INODES	(1 << QIF_INODES_B)
101#define QIF_BTIME	(1 << QIF_BTIME_B)
102#define QIF_ITIME	(1 << QIF_ITIME_B)
103#define QIF_LIMITS	(QIF_BLIMITS | QIF_ILIMITS)
104#define QIF_USAGE	(QIF_SPACE | QIF_INODES)
105#define QIF_TIMES	(QIF_BTIME | QIF_ITIME)
106#define QIF_ALL		(QIF_LIMITS | QIF_USAGE | QIF_TIMES)
107
108struct if_dqblk {
109	__u64 dqb_bhardlimit;
110	__u64 dqb_bsoftlimit;
111	__u64 dqb_curspace;
112	__u64 dqb_ihardlimit;
113	__u64 dqb_isoftlimit;
114	__u64 dqb_curinodes;
115	__u64 dqb_btime;
116	__u64 dqb_itime;
117	__u32 dqb_valid;
118};
119
120/*
121 * Structure used for setting quota information about file via quotactl
122 * Following flags are used to specify which fields are valid
123 */
124#define IIF_BGRACE	1
125#define IIF_IGRACE	2
126#define IIF_FLAGS	4
127#define IIF_ALL		(IIF_BGRACE | IIF_IGRACE | IIF_FLAGS)
128
129struct if_dqinfo {
130	__u64 dqi_bgrace;
131	__u64 dqi_igrace;
132	__u32 dqi_flags;
133	__u32 dqi_valid;
134};
135
136/*
137 * Definitions for quota netlink interface
138 */
139#define QUOTA_NL_NOWARN 0
140#define QUOTA_NL_IHARDWARN 1		/* Inode hardlimit reached */
141#define QUOTA_NL_ISOFTLONGWARN 2 	/* Inode grace time expired */
142#define QUOTA_NL_ISOFTWARN 3		/* Inode softlimit reached */
143#define QUOTA_NL_BHARDWARN 4		/* Block hardlimit reached */
144#define QUOTA_NL_BSOFTLONGWARN 5	/* Block grace time expired */
145#define QUOTA_NL_BSOFTWARN 6		/* Block softlimit reached */
146#define QUOTA_NL_IHARDBELOW 7		/* Usage got below inode hardlimit */
147#define QUOTA_NL_ISOFTBELOW 8		/* Usage got below inode softlimit */
148#define QUOTA_NL_BHARDBELOW 9		/* Usage got below block hardlimit */
149#define QUOTA_NL_BSOFTBELOW 10		/* Usage got below block softlimit */
150
151enum {
152	QUOTA_NL_C_UNSPEC,
153	QUOTA_NL_C_WARNING,
154	__QUOTA_NL_C_MAX,
155};
156#define QUOTA_NL_C_MAX (__QUOTA_NL_C_MAX - 1)
157
158enum {
159	QUOTA_NL_A_UNSPEC,
160	QUOTA_NL_A_QTYPE,
161	QUOTA_NL_A_EXCESS_ID,
162	QUOTA_NL_A_WARNING,
163	QUOTA_NL_A_DEV_MAJOR,
164	QUOTA_NL_A_DEV_MINOR,
165	QUOTA_NL_A_CAUSED_ID,
166	__QUOTA_NL_A_MAX,
167};
168#define QUOTA_NL_A_MAX (__QUOTA_NL_A_MAX - 1)
169
170
171#endif /* _UAPI_LINUX_QUOTA_ */
172