root / lab4 / .minix-src / include / sys / quota.h @ 14
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| 1 | 13 | up20180614 | /* $NetBSD: quota.h,v 1.12 2012/01/30 00:56:19 dholland Exp $ */
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| 2 | /*-
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| 3 | * Copyright (c) 2010 Manuel Bouyer
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | * 1. Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * 2. Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | *
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| 15 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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| 16 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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| 17 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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| 18 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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| 19 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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| 20 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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| 21 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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| 22 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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| 23 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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| 24 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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| 25 | * POSSIBILITY OF SUCH DAMAGE.
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| 26 | */
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| 27 | |||
| 28 | #ifndef _SYS_QUOTA_H_
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| 29 | #define _SYS_QUOTA_H_
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| 30 | |||
| 31 | #include <sys/types.h> |
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| 32 | |||
| 33 | /* quota id types (entities being billed) */
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| 34 | #define QUOTA_IDTYPE_USER 0 |
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| 35 | #define QUOTA_IDTYPE_GROUP 1 |
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| 36 | |||
| 37 | /* quota object types (things being limited) */
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| 38 | #define QUOTA_OBJTYPE_BLOCKS 0 |
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| 39 | #define QUOTA_OBJTYPE_FILES 1 |
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| 40 | |||
| 41 | /* id value for "default" */
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| 42 | #define QUOTA_DEFAULTID ((id_t)-1) |
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| 43 | |||
| 44 | /* limit value for "no limit" */
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| 45 | #define QUOTA_NOLIMIT ((uint64_t)0xffffffffffffffffULL) |
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| 46 | |||
| 47 | /* time value for "no time" */
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| 48 | #define QUOTA_NOTIME ((time_t)-1) |
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| 49 | |||
| 50 | /*
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| 51 | * Semantic restrictions. These are hints applications can use
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| 52 | * to help produce comprehensible error diagnostics when something
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| 53 | * unsupported is attempted.
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| 54 | */
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| 55 | #define QUOTA_RESTRICT_NEEDSQUOTACHECK 0x1 /* quotacheck(8) required */ |
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| 56 | #define QUOTA_RESTRICT_UNIFORMGRACE 0x2 /* grace time is global */ |
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| 57 | #define QUOTA_RESTRICT_32BIT 0x4 /* values limited to 2^32 */ |
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| 58 | #define QUOTA_RESTRICT_READONLY 0x8 /* updates not supported */ |
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| 59 | |||
| 60 | |||
| 61 | /*
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| 62 | * Structure used to describe the key part of a quota record.
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| 63 | */
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| 64 | struct quotakey {
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| 65 | int qk_idtype; /* type of id (user, group, etc.) */ |
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| 66 | id_t qk_id; /* actual id number */
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| 67 | int qk_objtype; /* type of fs object (blocks, files, etc.) */ |
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| 68 | }; |
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| 69 | |||
| 70 | /*
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| 71 | * Structure used to describe the value part of a quota record.
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| 72 | */
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| 73 | struct quotaval {
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| 74 | uint64_t qv_hardlimit; /* absolute limit */
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| 75 | uint64_t qv_softlimit; /* overflowable limit */
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| 76 | uint64_t qv_usage; /* current usage */
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| 77 | time_t qv_expiretime; /* time when softlimit grace expires */
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| 78 | time_t qv_grace; /* allowed time for overflowing soft limit */
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| 79 | }; |
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| 80 | |||
| 81 | #endif /* _SYS_QUOTA_H_ */ |