sysdeps/unix/sysv/linux/sys/quota.h

   1 /* This just represents the non-kernel parts of <linux/quota.h>.
   2    Copyright (C) 1998-2019 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 /*
  20  * Copyright (c) 1982, 1986 Regents of the University of California.
  21  * All rights reserved.
  22  *
  23  * This code is derived from software contributed to Berkeley by
  24  * Robert Elz at The University of Melbourne.
  25  *
  26  * Redistribution and use in source and binary forms, with or without
  27  * modification, are permitted provided that the following conditions
  28  * are met:
  29  * 1. Redistributions of source code must retain the above copyright
  30  *    notice, this list of conditions and the following disclaimer.
  31  * 2. Redistributions in binary form must reproduce the above copyright
  32  *    notice, this list of conditions and the following disclaimer in the
  33  *    documentation and/or other materials provided with the distribution.
  34  * 4. Neither the name of the University nor the names of its contributors
  35  *    may be used to endorse or promote products derived from this software
  36  *    without specific prior written permission.
  37  *
  38  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  39  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  40  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  41  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  42  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  43  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  44  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  45  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  46  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  47  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  48  * SUCH DAMAGE.
  49  */
  50
  51 #ifndef _SYS_QUOTA_H
  52 #define _SYS_QUOTA_H 1
  53
  54 #include <features.h>
  55 #include <sys/types.h>
  56
  57 #include <linux/quota.h>
  58
  59 /*
  60  * Convert diskblocks to blocks and the other way around.
  61  * currently only to fool the BSD source. :-)
  62  */
  63 #define dbtob(num) ((num) << 10)
  64 #define btodb(num) ((num) >> 10)
  65
  66 /*
  67  * Convert count of filesystem blocks to diskquota blocks, meant for
  68  * filesystems where i_blksize != 1024.
  69  */
  70 #define fs_to_dq_blocks(num, blksize) (((num) * (blksize)) / 1024)
  71
  72 /*
  73  * Definitions for disk quotas imposed on the average user
  74  * (big brother finally hits Linux).
  75  *
  76  * The following constants define the amount of time given a user
  77  * before the soft limits are treated as hard limits (usually resulting
  78  * in an allocation failure). The timer is started when the user crosses
  79  * their soft limit, it is reset when they go below their soft limit.
  80  */
  81 #define MAX_IQ_TIME  604800     /* (7*24*60*60) 1 week */
  82 #define MAX_DQ_TIME  604800     /* (7*24*60*60) 1 week */
  83
  84 #define QUOTAFILENAME "quota"
  85 #define QUOTAGROUP "staff"
  86
  87 #define NR_DQHASH 43          /* Just an arbitrary number any suggestions ? */
  88 #define NR_DQUOTS 256         /* Number of quotas active at one time */
  89
  90 /* Old name for struct if_dqblk.  */
  91 struct dqblk
  92   {
  93     __uint64_t dqb_bhardlimit;  /* absolute limit on disk quota blocks alloc */
  94     __uint64_t dqb_bsoftlimit;  /* preferred limit on disk quota blocks */
  95     __uint64_t dqb_curspace;    /* current quota block count */
  96     __uint64_t dqb_ihardlimit;  /* maximum # allocated inodes */
  97     __uint64_t dqb_isoftlimit;  /* preferred inode limit */
  98     __uint64_t dqb_curinodes;   /* current # allocated inodes */
  99     __uint64_t dqb_btime;       /* time limit for excessive disk use */
 100     __uint64_t dqb_itime;       /* time limit for excessive files */
 101     __uint32_t dqb_valid;       /* bitmask of QIF_* constants */
 102   };
 103
 104 /*
 105  * Shorthand notation.
 106  */
 107 #define dq_bhardlimit   dq_dqb.dqb_bhardlimit
 108 #define dq_bsoftlimit   dq_dqb.dqb_bsoftlimit
 109 #define dq_curspace     dq_dqb.dqb_curspace
 110 #define dq_valid        dq_dqb.dqb_valid
 111 #define dq_ihardlimit   dq_dqb.dqb_ihardlimit
 112 #define dq_isoftlimit   dq_dqb.dqb_isoftlimit
 113 #define dq_curinodes    dq_dqb.dqb_curinodes
 114 #define dq_btime        dq_dqb.dqb_btime
 115 #define dq_itime        dq_dqb.dqb_itime
 116
 117 #define dqoff(UID)      ((__loff_t)((UID) * sizeof (struct dqblk)))
 118
 119 /* Old name for struct if_dqinfo.  */
 120 struct dqinfo
 121   {
 122     __uint64_t dqi_bgrace;
 123     __uint64_t dqi_igrace;
 124     __uint32_t dqi_flags;
 125     __uint32_t dqi_valid;
 126   };
 127
 128 __BEGIN_DECLS
 129
 130 extern int quotactl (int __cmd, const char *__special, int __id,
 131                      __caddr_t __addr) __THROW;
 132
 133 __END_DECLS
 134
 135 #endif /* sys/quota.h */