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- /* This just represents the non-kernel parts of <linux/quota.h>.
- *
- * here's the corresponding copyright:
- * Copyright (c) 1982, 1986 Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Robert Elz at The University of Melbourne.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
- #ifndef _SYS_QUOTA_H
- #define _SYS_QUOTA_H 1
- #include <features.h>
- #include <sys/types.h>
- /*
- * Select between different incompatible quota versions.
- * Default to the version used by Linux kernel version 2.4.22
- * or later. */
- #ifndef _LINUX_QUOTA_VERSION
- # define _LINUX_QUOTA_VERSION 2
- #endif
- /*
- * Convert diskblocks to blocks and the other way around.
- * currently only to fool the BSD source. :-)
- */
- #define dbtob(num) ((num) << 10)
- #define btodb(num) ((num) >> 10)
- /*
- * Convert count of filesystem blocks to diskquota blocks, meant
- * for filesystems where i_blksize != BLOCK_SIZE
- */
- #define fs_to_dq_blocks(num, blksize) (((num) * (blksize)) / BLOCK_SIZE)
- /*
- * Definitions for disk quotas imposed on the average user
- * (big brother finally hits Linux).
- *
- * The following constants define the amount of time given a user
- * before the soft limits are treated as hard limits (usually resulting
- * in an allocation failure). The timer is started when the user crosses
- * their soft limit, it is reset when they go below their soft limit.
- */
- #define MAX_IQ_TIME 604800 /* (7*24*60*60) 1 week */
- #define MAX_DQ_TIME 604800 /* (7*24*60*60) 1 week */
- #define MAXQUOTAS 2
- #define USRQUOTA 0 /* element used for user quotas */
- #define GRPQUOTA 1 /* element used for group quotas */
- /*
- * Definitions for the default names of the quotas files.
- */
- #define INITQFNAMES { \
- "user", /* USRQUOTA */ \
- "group", /* GRPQUOTA */ \
- "undefined", \
- };
- #define QUOTAFILENAME "quota"
- #define QUOTAGROUP "staff"
- #define NR_DQHASH 43 /* Just an arbitrary number any suggestions ? */
- #define NR_DQUOTS 256 /* Number of quotas active at one time */
- /*
- * Command definitions for the 'quotactl' system call.
- * The commands are broken into a main command defined below
- * and a subcommand that is used to convey the type of
- * quota that is being manipulated (see above).
- */
- #define SUBCMDMASK 0x00ff
- #define SUBCMDSHIFT 8
- #define QCMD(cmd, type) (((cmd) << SUBCMDSHIFT) | ((type) & SUBCMDMASK))
- #if _LINUX_QUOTA_VERSION < 2
- # define Q_QUOTAON 0x0100 /* enable quotas */
- # define Q_QUOTAOFF 0x0200 /* disable quotas */
- # define Q_GETQUOTA 0x0300 /* get limits and usage */
- # define Q_SETQUOTA 0x0400 /* set limits and usage */
- # define Q_SETUSE 0x0500 /* set usage */
- # define Q_SYNC 0x0600 /* sync disk copy of a filesystems quotas */
- # define Q_SETQLIM 0x0700 /* set limits */
- # define Q_GETSTATS 0x0800 /* get collected stats */
- # define Q_RSQUASH 0x1000 /* set root_squash option */
- #else
- # define Q_SYNC 0x800001 /* sync disk copy of a filesystems quotas */
- # define Q_QUOTAON 0x800002 /* turn quotas on */
- # define Q_QUOTAOFF 0x800003 /* turn quotas off */
- # define Q_GETFMT 0x800004 /* get quota format used on given filesystem */
- # define Q_GETINFO 0x800005 /* get information about quota files */
- # define Q_SETINFO 0x800006 /* set information about quota files */
- # define Q_GETQUOTA 0x800007 /* get user quota structure */
- # define Q_SETQUOTA 0x800008 /* set user quota structure */
- # define Q_GETNEXTQUOTA 0x800009 /* get disk limits and usage >= ID */
- #endif
- /*
- * The following structure defines the format of the disk quota file
- * (as it appears on disk) - the file is an array of these structures
- * indexed by user or group number.
- */
- #if _LINUX_QUOTA_VERSION < 2
- struct dqblk
- {
- u_int32_t dqb_bhardlimit; /* absolute limit on disk blks alloc */
- u_int32_t dqb_bsoftlimit; /* preferred limit on disk blks */
- u_int32_t dqb_curblocks; /* current block count */
- u_int32_t dqb_ihardlimit; /* maximum # allocated inodes */
- u_int32_t dqb_isoftlimit; /* preferred inode limit */
- u_int32_t dqb_curinodes; /* current # allocated inodes */
- time_t dqb_btime; /* time limit for excessive disk use */
- time_t dqb_itime; /* time limit for excessive files */
- };
- #else
- /* Flags that indicate which fields in dqblk structure are valid. */
- #define QIF_BLIMITS 1
- #define QIF_SPACE 2
- #define QIF_ILIMITS 4
- #define QIF_INODES 8
- #define QIF_BTIME 16
- #define QIF_ITIME 32
- #define QIF_LIMITS (QIF_BLIMITS | QIF_ILIMITS)
- #define QIF_USAGE (QIF_SPACE | QIF_INODES)
- #define QIF_TIMES (QIF_BTIME | QIF_ITIME)
- #define QIF_ALL (QIF_LIMITS | QIF_USAGE | QIF_TIMES)
- struct dqblk
- {
- u_int64_t dqb_bhardlimit; /* absolute limit on disk quota blocks alloc */
- u_int64_t dqb_bsoftlimit; /* preferred limit on disk quota blocks */
- u_int64_t dqb_curspace; /* current quota block count */
- u_int64_t dqb_ihardlimit; /* maximum # allocated inodes */
- u_int64_t dqb_isoftlimit; /* preferred inode limit */
- u_int64_t dqb_curinodes; /* current # allocated inodes */
- u_int64_t dqb_btime; /* time limit for excessive disk use */
- u_int64_t dqb_itime; /* time limit for excessive files */
- u_int32_t dqb_valid; /* bitmask of QIF_* constants */
- };
- #endif
- /*
- * Shorthand notation.
- */
- #define dq_bhardlimit dq_dqb.dqb_bhardlimit
- #define dq_bsoftlimit dq_dqb.dqb_bsoftlimit
- #if _LINUX_QUOTA_VERSION < 2
- # define dq_curblocks dq_dqb.dqb_curblocks
- #else
- # define dq_curspace dq_dqb.dqb_curspace
- # define dq_valid dq_dqb.dqb_valid
- #endif
- #define dq_ihardlimit dq_dqb.dqb_ihardlimit
- #define dq_isoftlimit dq_dqb.dqb_isoftlimit
- #define dq_curinodes dq_dqb.dqb_curinodes
- #define dq_btime dq_dqb.dqb_btime
- #define dq_itime dq_dqb.dqb_itime
- #define dqoff(UID) ((loff_t)((UID) * sizeof (struct dqblk)))
- #if _LINUX_QUOTA_VERSION < 2
- struct dqstats
- {
- u_int32_t lookups;
- u_int32_t drops;
- u_int32_t reads;
- u_int32_t writes;
- u_int32_t cache_hits;
- u_int32_t pages_allocated;
- u_int32_t allocated_dquots;
- u_int32_t free_dquots;
- u_int32_t syncs;
- };
- #else
- /* Flags that indicate which fields in dqinfo structure are valid. */
- # define IIF_BGRACE 1
- # define IIF_IGRACE 2
- # define IIF_FLAGS 4
- # define IIF_ALL (IIF_BGRACE | IIF_IGRACE | IIF_FLAGS)
- struct dqinfo
- {
- u_int64_t dqi_bgrace;
- u_int64_t dqi_igrace;
- u_int32_t dqi_flags;
- u_int32_t dqi_valid;
- };
- #endif
- __BEGIN_DECLS
- extern int quotactl (int __cmd, const char *__special, int __id,
- caddr_t __addr) __THROW;
- __END_DECLS
- #endif /* sys/quota.h */
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