master
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 _LINUX_QUOTA_
34#define _LINUX_QUOTA_
35
36#include <linux/types.h>
37
38#define __DQUOT_VERSION__ "dquot_6.6.0"
39
40#define MAXQUOTAS 3
41#define USRQUOTA 0 /* element used for user quotas */
42#define GRPQUOTA 1 /* element used for group quotas */
43#define PRJQUOTA 2 /* element used for project quotas */
44
45/*
46 * Definitions for the default names of the quotas files.
47 */
48#define INITQFNAMES { \
49 "user", /* USRQUOTA */ \
50 "group", /* GRPQUOTA */ \
51 "project", /* PRJQUOTA */ \
52 "undefined", \
53};
54
55/*
56 * Command definitions for the 'quotactl' system call.
57 * The commands are broken into a main command defined below
58 * and a subcommand that is used to convey the type of
59 * quota that is being manipulated (see above).
60 */
61#define SUBCMDMASK 0x00ff
62#define SUBCMDSHIFT 8
63#define QCMD(cmd, type) (((cmd) << SUBCMDSHIFT) | ((type) & SUBCMDMASK))
64
65#define Q_SYNC 0x800001 /* sync disk copy of a filesystems quotas */
66#define Q_QUOTAON 0x800002 /* turn quotas on */
67#define Q_QUOTAOFF 0x800003 /* turn quotas off */
68#define Q_GETFMT 0x800004 /* get quota format used on given filesystem */
69#define Q_GETINFO 0x800005 /* get information about quota files */
70#define Q_SETINFO 0x800006 /* set information about quota files */
71#define Q_GETQUOTA 0x800007 /* get user quota structure */
72#define Q_SETQUOTA 0x800008 /* set user quota structure */
73#define Q_GETNEXTQUOTA 0x800009 /* get disk limits and usage >= ID */
74
75/* Quota format type IDs */
76#define QFMT_VFS_OLD 1
77#define QFMT_VFS_V0 2
78#define QFMT_OCFS2 3
79#define QFMT_VFS_V1 4
80#define QFMT_SHMEM 5
81
82/* Size of block in which space limits are passed through the quota
83 * interface */
84#define QIF_DQBLKSIZE_BITS 10
85#define QIF_DQBLKSIZE (1 << QIF_DQBLKSIZE_BITS)
86
87/*
88 * Quota structure used for communication with userspace via quotactl
89 * Following flags are used to specify which fields are valid
90 */
91enum {
92 QIF_BLIMITS_B = 0,
93 QIF_SPACE_B,
94 QIF_ILIMITS_B,
95 QIF_INODES_B,
96 QIF_BTIME_B,
97 QIF_ITIME_B,
98};
99
100#define QIF_BLIMITS (1 << QIF_BLIMITS_B)
101#define QIF_SPACE (1 << QIF_SPACE_B)
102#define QIF_ILIMITS (1 << QIF_ILIMITS_B)
103#define QIF_INODES (1 << QIF_INODES_B)
104#define QIF_BTIME (1 << QIF_BTIME_B)
105#define QIF_ITIME (1 << QIF_ITIME_B)
106#define QIF_LIMITS (QIF_BLIMITS | QIF_ILIMITS)
107#define QIF_USAGE (QIF_SPACE | QIF_INODES)
108#define QIF_TIMES (QIF_BTIME | QIF_ITIME)
109#define QIF_ALL (QIF_LIMITS | QIF_USAGE | QIF_TIMES)
110
111struct if_dqblk {
112 __u64 dqb_bhardlimit;
113 __u64 dqb_bsoftlimit;
114 __u64 dqb_curspace;
115 __u64 dqb_ihardlimit;
116 __u64 dqb_isoftlimit;
117 __u64 dqb_curinodes;
118 __u64 dqb_btime;
119 __u64 dqb_itime;
120 __u32 dqb_valid;
121};
122
123struct if_nextdqblk {
124 __u64 dqb_bhardlimit;
125 __u64 dqb_bsoftlimit;
126 __u64 dqb_curspace;
127 __u64 dqb_ihardlimit;
128 __u64 dqb_isoftlimit;
129 __u64 dqb_curinodes;
130 __u64 dqb_btime;
131 __u64 dqb_itime;
132 __u32 dqb_valid;
133 __u32 dqb_id;
134};
135
136/*
137 * Structure used for setting quota information about file via quotactl
138 * Following flags are used to specify which fields are valid
139 */
140#define IIF_BGRACE 1
141#define IIF_IGRACE 2
142#define IIF_FLAGS 4
143#define IIF_ALL (IIF_BGRACE | IIF_IGRACE | IIF_FLAGS)
144
145enum {
146 DQF_ROOT_SQUASH_B = 0,
147 DQF_SYS_FILE_B = 16,
148 /* Kernel internal flags invisible to userspace */
149 DQF_PRIVATE
150};
151
152/* Root squash enabled (for v1 quota format) */
153#define DQF_ROOT_SQUASH (1 << DQF_ROOT_SQUASH_B)
154/* Quota stored in a system file */
155#define DQF_SYS_FILE (1 << DQF_SYS_FILE_B)
156
157struct if_dqinfo {
158 __u64 dqi_bgrace;
159 __u64 dqi_igrace;
160 __u32 dqi_flags; /* DFQ_* */
161 __u32 dqi_valid;
162};
163
164/*
165 * Definitions for quota netlink interface
166 */
167#define QUOTA_NL_NOWARN 0
168#define QUOTA_NL_IHARDWARN 1 /* Inode hardlimit reached */
169#define QUOTA_NL_ISOFTLONGWARN 2 /* Inode grace time expired */
170#define QUOTA_NL_ISOFTWARN 3 /* Inode softlimit reached */
171#define QUOTA_NL_BHARDWARN 4 /* Block hardlimit reached */
172#define QUOTA_NL_BSOFTLONGWARN 5 /* Block grace time expired */
173#define QUOTA_NL_BSOFTWARN 6 /* Block softlimit reached */
174#define QUOTA_NL_IHARDBELOW 7 /* Usage got below inode hardlimit */
175#define QUOTA_NL_ISOFTBELOW 8 /* Usage got below inode softlimit */
176#define QUOTA_NL_BHARDBELOW 9 /* Usage got below block hardlimit */
177#define QUOTA_NL_BSOFTBELOW 10 /* Usage got below block softlimit */
178
179enum {
180 QUOTA_NL_C_UNSPEC,
181 QUOTA_NL_C_WARNING,
182 __QUOTA_NL_C_MAX,
183};
184#define QUOTA_NL_C_MAX (__QUOTA_NL_C_MAX - 1)
185
186enum {
187 QUOTA_NL_A_UNSPEC,
188 QUOTA_NL_A_QTYPE,
189 QUOTA_NL_A_EXCESS_ID,
190 QUOTA_NL_A_WARNING,
191 QUOTA_NL_A_DEV_MAJOR,
192 QUOTA_NL_A_DEV_MINOR,
193 QUOTA_NL_A_CAUSED_ID,
194 QUOTA_NL_A_PAD,
195 __QUOTA_NL_A_MAX,
196};
197#define QUOTA_NL_A_MAX (__QUOTA_NL_A_MAX - 1)
198
199
200#endif /* _LINUX_QUOTA_ */