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8193034b UD |
1 | /* This just represents the non-kernel parts of <linux/quota.h>. |
2 | * | |
3 | * here's the corresponding copyright: | |
4 | * Copyright (c) 1982, 1986 Regents of the University of California. | |
5 | * All rights reserved. | |
6 | * | |
7 | * This code is derived from software contributed to Berkeley by | |
8 | * Robert Elz at The University of Melbourne. | |
9 | * | |
10 | * Redistribution and use in source and binary forms, with or without | |
11 | * modification, are permitted provided that the following conditions | |
12 | * are met: | |
13 | * 1. Redistributions of source code must retain the above copyright | |
14 | * notice, this list of conditions and the following disclaimer. | |
15 | * 2. Redistributions in binary form must reproduce the above copyright | |
16 | * notice, this list of conditions and the following disclaimer in the | |
17 | * documentation and/or other materials provided with the distribution. | |
8193034b UD |
18 | * 4. Neither the name of the University nor the names of its contributors |
19 | * may be used to endorse or promote products derived from this software | |
20 | * without specific prior written permission. | |
21 | * | |
22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
32 | * SUCH DAMAGE. | |
33 | * | |
34 | * Version: $Id$ | |
35 | */ | |
36 | ||
37 | #ifndef _SYS_QUOTA_H | |
38 | #define _SYS_QUOTA_H 1 | |
39 | ||
40 | #include <features.h> | |
6973fc01 | 41 | #include <sys/types.h> |
8193034b UD |
42 | |
43 | /* | |
44 | * Convert diskblocks to blocks and the other way around. | |
45 | * currently only to fool the BSD source. :-) | |
46 | */ | |
47 | #define dbtob(num) ((num) << 10) | |
48 | #define btodb(num) ((num) >> 10) | |
49 | ||
50 | /* | |
51 | * Convert count of filesystem blocks to diskquota blocks, meant | |
52 | * for filesystems where i_blksize != BLOCK_SIZE | |
53 | */ | |
54 | #define fs_to_dq_blocks(num, blksize) (((num) * (blksize)) / BLOCK_SIZE) | |
55 | ||
56 | /* | |
57 | * Definitions for disk quotas imposed on the average user | |
58 | * (big brother finally hits Linux). | |
59 | * | |
60 | * The following constants define the amount of time given a user | |
61 | * before the soft limits are treated as hard limits (usually resulting | |
62 | * in an allocation failure). The timer is started when the user crosses | |
63 | * their soft limit, it is reset when they go below their soft limit. | |
64 | */ | |
65 | #define MAX_IQ_TIME 604800 /* (7*24*60*60) 1 week */ | |
66 | #define MAX_DQ_TIME 604800 /* (7*24*60*60) 1 week */ | |
67 | ||
68 | #define MAXQUOTAS 2 | |
69 | #define USRQUOTA 0 /* element used for user quotas */ | |
70 | #define GRPQUOTA 1 /* element used for group quotas */ | |
71 | ||
72 | /* | |
73 | * Definitions for the default names of the quotas files. | |
74 | */ | |
75 | #define INITQFNAMES { \ | |
76 | "user", /* USRQUOTA */ \ | |
77 | "group", /* GRPQUOTA */ \ | |
78 | "undefined", \ | |
79 | }; | |
80 | ||
81 | #define QUOTAFILENAME "quota" | |
82 | #define QUOTAGROUP "staff" | |
83 | ||
84 | #define NR_DQHASH 43 /* Just an arbitrary number any suggestions ? */ | |
85 | #define NR_DQUOTS 256 /* Number of quotas active at one time */ | |
86 | ||
87 | /* | |
88 | * Command definitions for the 'quotactl' system call. | |
89 | * The commands are broken into a main command defined below | |
90 | * and a subcommand that is used to convey the type of | |
91 | * quota that is being manipulated (see above). | |
92 | */ | |
93 | #define SUBCMDMASK 0x00ff | |
94 | #define SUBCMDSHIFT 8 | |
95 | #define QCMD(cmd, type) (((cmd) << SUBCMDSHIFT) | ((type) & SUBCMDMASK)) | |
96 | ||
97 | #define Q_QUOTAON 0x0100 /* enable quotas */ | |
98 | #define Q_QUOTAOFF 0x0200 /* disable quotas */ | |
99 | #define Q_GETQUOTA 0x0300 /* get limits and usage */ | |
100 | #define Q_SETQUOTA 0x0400 /* set limits and usage */ | |
101 | #define Q_SETUSE 0x0500 /* set usage */ | |
102 | #define Q_SYNC 0x0600 /* sync disk copy of a filesystems quotas */ | |
103 | #define Q_SETQLIM 0x0700 /* set limits */ | |
104 | #define Q_GETSTATS 0x0800 /* get collected stats */ | |
8325d82c | 105 | #define Q_RSQUASH 0x1000 /* set root_squash option */ |
8193034b UD |
106 | |
107 | /* | |
108 | * The following structure defines the format of the disk quota file | |
109 | * (as it appears on disk) - the file is an array of these structures | |
110 | * indexed by user or group number. | |
111 | */ | |
112 | struct dqblk | |
113 | { | |
114 | u_int32_t dqb_bhardlimit; /* absolute limit on disk blks alloc */ | |
115 | u_int32_t dqb_bsoftlimit; /* preferred limit on disk blks */ | |
116 | u_int32_t dqb_curblocks; /* current block count */ | |
117 | u_int32_t dqb_ihardlimit; /* maximum # allocated inodes */ | |
118 | u_int32_t dqb_isoftlimit; /* preferred inode limit */ | |
119 | u_int32_t dqb_curinodes; /* current # allocated inodes */ | |
120 | time_t dqb_btime; /* time limit for excessive disk use */ | |
121 | time_t dqb_itime; /* time limit for excessive files */ | |
122 | }; | |
123 | ||
124 | /* | |
125 | * Shorthand notation. | |
126 | */ | |
127 | #define dq_bhardlimit dq_dqb.dqb_bhardlimit | |
128 | #define dq_bsoftlimit dq_dqb.dqb_bsoftlimit | |
129 | #define dq_curblocks dq_dqb.dqb_curblocks | |
130 | #define dq_ihardlimit dq_dqb.dqb_ihardlimit | |
131 | #define dq_isoftlimit dq_dqb.dqb_isoftlimit | |
132 | #define dq_curinodes dq_dqb.dqb_curinodes | |
133 | #define dq_btime dq_dqb.dqb_btime | |
134 | #define dq_itime dq_dqb.dqb_itime | |
135 | ||
136 | #define dqoff(UID) ((loff_t)((UID) * sizeof (struct dqblk))) | |
137 | ||
138 | struct dqstats | |
139 | { | |
140 | u_int32_t lookups; | |
141 | u_int32_t drops; | |
142 | u_int32_t reads; | |
143 | u_int32_t writes; | |
144 | u_int32_t cache_hits; | |
145 | u_int32_t pages_allocated; | |
146 | u_int32_t allocated_dquots; | |
147 | u_int32_t free_dquots; | |
148 | u_int32_t syncs; | |
149 | }; | |
150 | ||
151 | __BEGIN_DECLS | |
152 | ||
4d3a563f UD |
153 | extern int quotactl (int __cmd, const char *__special, int __id, |
154 | caddr_t __addr) __THROW; | |
8193034b UD |
155 | |
156 | __END_DECLS | |
157 | ||
158 | #endif /* sys/quota.h */ |