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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 */ #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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