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/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
81 /* Size of block in which space limits are passed through the quota
82 * interface */
83 #define QIF_DQBLKSIZE_BITS 10
84 #define QIF_DQBLKSIZE (1 << QIF_DQBLKSIZE_BITS)
85
86 /*
87 * Quota structure used for communication with userspace via quotactl
88 * Following flags are used to specify which fields are valid
89 */
90 enum {
91 QIF_BLIMITS_B = 0,
92 QIF_SPACE_B,
93 QIF_ILIMITS_B,
94 QIF_INODES_B,
95 QIF_BTIME_B,
96 QIF_ITIME_B,
97 };
98
99 #define QIF_BLIMITS (1 << QIF_BLIMITS_B)
100 #define QIF_SPACE (1 << QIF_SPACE_B)
101 #define QIF_ILIMITS (1 << QIF_ILIMITS_B)
102 #define QIF_INODES (1 << QIF_INODES_B)
103 #define QIF_BTIME (1 << QIF_BTIME_B)
104 #define QIF_ITIME (1 << QIF_ITIME_B)
105 #define QIF_LIMITS (QIF_BLIMITS | QIF_ILIMITS)
106 #define QIF_USAGE (QIF_SPACE | QIF_INODES)
107 #define QIF_TIMES (QIF_BTIME | QIF_ITIME)
108 #define QIF_ALL (QIF_LIMITS | QIF_USAGE | QIF_TIMES)
109
110 struct if_dqblk {
111 __u64 dqb_bhardlimit;
112 __u64 dqb_bsoftlimit;
113 __u64 dqb_curspace;
114 __u64 dqb_ihardlimit;
115 __u64 dqb_isoftlimit;
116 __u64 dqb_curinodes;
117 __u64 dqb_btime;
118 __u64 dqb_itime;
119 __u32 dqb_valid;
120 };
121
122 struct if_nextdqblk {
123 __u64 dqb_bhardlimit;
124 __u64 dqb_bsoftlimit;
125 __u64 dqb_curspace;
126 __u64 dqb_ihardlimit;
127 __u64 dqb_isoftlimit;
128 __u64 dqb_curinodes;
129 __u64 dqb_btime;
130 __u64 dqb_itime;
131 __u32 dqb_valid;
132 __u32 dqb_id;
133 };
134
135 /*
136 * Structure used for setting quota information about file via quotactl
137 * Following flags are used to specify which fields are valid
138 */
139 #define IIF_BGRACE 1
140 #define IIF_IGRACE 2
141 #define IIF_FLAGS 4
142 #define IIF_ALL (IIF_BGRACE | IIF_IGRACE | IIF_FLAGS)
143
144 enum {
145 DQF_ROOT_SQUASH_B = 0,
146 DQF_SYS_FILE_B = 16,
147 /* Kernel internal flags invisible to userspace */
148 DQF_PRIVATE
149 };
150
151 /* Root squash enabled (for v1 quota format) */
152 #define DQF_ROOT_SQUASH (1 << DQF_ROOT_SQUASH_B)
153 /* Quota stored in a system file */
154 #define DQF_SYS_FILE (1 << DQF_SYS_FILE_B)
155
156 struct if_dqinfo {
157 __u64 dqi_bgrace;
158 __u64 dqi_igrace;
159 __u32 dqi_flags; /* DFQ_* */
160 __u32 dqi_valid;
161 };
162
163 /*
164 * Definitions for quota netlink interface
165 */
166 #define QUOTA_NL_NOWARN 0
167 #define QUOTA_NL_IHARDWARN 1 /* Inode hardlimit reached */
168 #define QUOTA_NL_ISOFTLONGWARN 2 /* Inode grace time expired */
169 #define QUOTA_NL_ISOFTWARN 3 /* Inode softlimit reached */
170 #define QUOTA_NL_BHARDWARN 4 /* Block hardlimit reached */
171 #define QUOTA_NL_BSOFTLONGWARN 5 /* Block grace time expired */
172 #define QUOTA_NL_BSOFTWARN 6 /* Block softlimit reached */
173 #define QUOTA_NL_IHARDBELOW 7 /* Usage got below inode hardlimit */
174 #define QUOTA_NL_ISOFTBELOW 8 /* Usage got below inode softlimit */
175 #define QUOTA_NL_BHARDBELOW 9 /* Usage got below block hardlimit */
176 #define QUOTA_NL_BSOFTBELOW 10 /* Usage got below block softlimit */
177
178 enum {
179 QUOTA_NL_C_UNSPEC,
180 QUOTA_NL_C_WARNING,
181 __QUOTA_NL_C_MAX,
182 };
183 #define QUOTA_NL_C_MAX (__QUOTA_NL_C_MAX - 1)
184
185 enum {
186 QUOTA_NL_A_UNSPEC,
187 QUOTA_NL_A_QTYPE,
188 QUOTA_NL_A_EXCESS_ID,
189 QUOTA_NL_A_WARNING,
190 QUOTA_NL_A_DEV_MAJOR,
191 QUOTA_NL_A_DEV_MINOR,
192 QUOTA_NL_A_CAUSED_ID,
193 QUOTA_NL_A_PAD,
194 __QUOTA_NL_A_MAX,
195 };
196 #define QUOTA_NL_A_MAX (__QUOTA_NL_A_MAX - 1)
197
198
199 #endif /* _UAPI_LINUX_QUOTA_ */