1 | /* $NetBSD: quotactl.h,v 1.38 2014/06/28 22:27:50 dholland Exp $ */ |
2 | /*- |
3 | * Copyright (c) 2011 The NetBSD Foundation, Inc. |
4 | * All rights reserved. |
5 | * |
6 | * This code is derived from software contributed to The NetBSD Foundation |
7 | * by David A. Holland. |
8 | * |
9 | * Redistribution and use in source and binary forms, with or without |
10 | * modification, are permitted provided that the following conditions |
11 | * are met: |
12 | * 1. Redistributions of source code must retain the above copyright |
13 | * notice, this list of conditions and the following disclaimer. |
14 | * 2. Redistributions in binary form must reproduce the above copyright |
15 | * notice, this list of conditions and the following disclaimer in the |
16 | * documentation and/or other materials provided with the distribution. |
17 | * |
18 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
19 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
20 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
21 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
22 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
23 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
24 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
25 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
26 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
27 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
28 | * POSSIBILITY OF SUCH DAMAGE. |
29 | */ |
30 | |
31 | #ifndef _SYS_QUOTACTL_H_ |
32 | #define _SYS_QUOTACTL_H_ |
33 | |
34 | #include <sys/stdint.h> |
35 | |
36 | /* |
37 | * Note - this is an internal interface. Application code (and, |
38 | * really, anything that isn't libquota or inside the kernel) should |
39 | * use the <quota.h> API instead. |
40 | */ |
41 | |
42 | /* Size of random quota strings */ |
43 | #define QUOTA_NAMELEN 32 |
44 | |
45 | /* |
46 | * Structure for QUOTACTL_STAT. |
47 | */ |
48 | struct quotastat { |
49 | char qs_implname[QUOTA_NAMELEN]; |
50 | int qs_numidtypes; |
51 | int qs_numobjtypes; |
52 | unsigned qs_restrictions; /* semantic restriction codes */ |
53 | }; |
54 | |
55 | /* |
56 | * Structures for QUOTACTL_IDTYPESTAT and QUOTACTL_OBJTYPESTAT. |
57 | */ |
58 | struct quotaidtypestat { |
59 | char qis_name[QUOTA_NAMELEN]; |
60 | }; |
61 | struct quotaobjtypestat { |
62 | char qos_name[QUOTA_NAMELEN]; |
63 | int qos_isbytes; |
64 | }; |
65 | |
66 | /* |
67 | * Semi-opaque structure for cursors. This holds the cursor state in |
68 | * userland; the size is exposed only to libquota, not to client code, |
69 | * and is meant to be large enough to accommodate all likely future |
70 | * expansion without being unduly bloated, as it will need to be |
71 | * copied in and out for every call using it. |
72 | */ |
73 | struct quotakcursor { |
74 | union { |
75 | char qkc_space[64]; |
76 | uintmax_t __qkc_forcealign; |
77 | } u; |
78 | }; |
79 | |
80 | /* Command codes. */ |
81 | #define QUOTACTL_STAT 0 |
82 | #define QUOTACTL_IDTYPESTAT 1 |
83 | #define QUOTACTL_OBJTYPESTAT 2 |
84 | #define QUOTACTL_GET 3 |
85 | #define QUOTACTL_PUT 4 |
86 | #define QUOTACTL_DEL 5 |
87 | #define QUOTACTL_CURSOROPEN 6 |
88 | #define QUOTACTL_CURSORCLOSE 7 |
89 | #define QUOTACTL_CURSORSKIPIDTYPE 8 |
90 | #define QUOTACTL_CURSORGET 9 |
91 | #define QUOTACTL_CURSORATEND 10 |
92 | #define QUOTACTL_CURSORREWIND 11 |
93 | #define QUOTACTL_QUOTAON 12 |
94 | #define QUOTACTL_QUOTAOFF 13 |
95 | |
96 | /* Argument encoding. */ |
97 | struct quotactl_args { |
98 | unsigned qc_op; |
99 | union { |
100 | struct { |
101 | struct quotastat *qc_info; |
102 | } stat; |
103 | struct { |
104 | int qc_idtype; |
105 | struct quotaidtypestat *qc_info; |
106 | } idtypestat; |
107 | struct { |
108 | int qc_objtype; |
109 | struct quotaobjtypestat *qc_info; |
110 | } objtypestat; |
111 | struct { |
112 | const struct quotakey *qc_key; |
113 | struct quotaval *qc_val; |
114 | } get; |
115 | struct { |
116 | const struct quotakey *qc_key; |
117 | const struct quotaval *qc_val; |
118 | } put; |
119 | struct { |
120 | const struct quotakey *qc_key; |
121 | } del; |
122 | struct { |
123 | struct quotakcursor *qc_cursor; |
124 | } cursoropen; |
125 | struct { |
126 | struct quotakcursor *qc_cursor; |
127 | } cursorclose; |
128 | struct { |
129 | struct quotakcursor *qc_cursor; |
130 | int qc_idtype; |
131 | } cursorskipidtype; |
132 | struct { |
133 | struct quotakcursor *qc_cursor; |
134 | struct quotakey *qc_keys; |
135 | struct quotaval *qc_vals; |
136 | unsigned qc_maxnum; |
137 | unsigned *qc_ret; |
138 | } cursorget; |
139 | struct { |
140 | struct quotakcursor *qc_cursor; |
141 | int *qc_ret; /* really boolean */ |
142 | } cursoratend; |
143 | struct { |
144 | struct quotakcursor *qc_cursor; |
145 | } cursorrewind; |
146 | struct { |
147 | int qc_idtype; |
148 | const char *qc_quotafile; |
149 | } quotaon; |
150 | struct { |
151 | int qc_idtype; |
152 | } quotaoff; |
153 | } u; |
154 | }; |
155 | |
156 | #if !defined(_KERNEL) && !defined(_STANDALONE) |
157 | __BEGIN_DECLS |
158 | int __quotactl(const char *, struct quotactl_args *); |
159 | __END_DECLS |
160 | #endif |
161 | |
162 | #endif /* _SYS_QUOTACTL_H_ */ |
163 | |