| 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 | |