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quota1.h revision 1.3 
      1 /*	$NetBSD: quota1.h,v 1.3 2011/03/24 17:05:45 bouyer Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1982, 1986, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * This code is derived from software contributed to Berkeley by
      8  * Robert Elz at The University of Melbourne.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. Neither the name of the University nor the names of its contributors
     19  *    may be used to endorse or promote products derived from this software
     20  *    without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  * SUCH DAMAGE.
     33  *
     34  *	@(#)quota.h	8.3 (Berkeley) 8/19/94
     35  */
     36 
     37 #ifndef	_UFS_UFS_QUOTA1_H_
     38 #define	_UFS_UFS_QUOTA1_H_
     39 #include <ufs/ufs/quota.h>
     40 
     41 /*
     42  * These definitions are for the original disk quota implementation, which
     43  * is deprecated. the newer implementation is defined in quota2.h
     44  * and friends
     45  */
     46 
     47 /*
     48  * Definitions for the default names of the quotas files/quota types.
     49  */
     50 #define INITQFNAMES { \
     51 	"user",		/* USRQUOTA */ \
     52 	"group",	/* GRPQUOTA */ \
     53 }
     54 
     55 /*
     56  * Definitions for disk quotas imposed on the average user
     57  * (big brother finally hits UNIX).
     58  *
     59  * The following constants define the amount of time given a user before the
     60  * soft limits are treated as hard limits (usually resulting in an allocation
     61  * failure). The timer is started when the user crosses their soft limit, it
     62  * is reset when they go below their soft limit.
     63  */
     64 #define	MAX_IQ_TIME	(7*24*60*60)	/* seconds in 1 week */
     65 #define	MAX_DQ_TIME	(7*24*60*60)	/* seconds in 1 week */
     66 
     67 #define	QUOTAFILENAME	"quota"
     68 #define	QUOTAGROUP	"operator"
     69 
     70 /*
     71  * Command definitions for the 'compat_50_quotactl' system call.  The commands
     72  * are broken into a main command defined below and a subcommand that is used
     73  * to convey the type of quota that is being manipulated (see above).
     74  */
     75 #define SUBCMDMASK	0x00ff
     76 #define SUBCMDSHIFT	8
     77 #define	QCMD(cmd, type)	(((cmd) << SUBCMDSHIFT) | ((type) & SUBCMDMASK))
     78 
     79 #define	Q_QUOTAON	0x0100	/* enable quotas */
     80 #define	Q_QUOTAOFF	0x0200	/* disable quotas */
     81 #define	Q_GETQUOTA	0x0300	/* get limits and usage */
     82 #define	Q_SETQUOTA	0x0400	/* set limits and usage */
     83 #define	Q_SETUSE	0x0500	/* set usage */
     84 #define	Q_SYNC		0x0600	/* sync disk copy of a filesystems quotas */
     85 
     86 /*
     87  * The following structure defines the format of the disk quota file
     88  * (as it appears on disk) - the file is an array of these structures
     89  * indexed by user or group number.  The setquota system call establishes
     90  * the vnode for each quota file (a pointer is retained in the ufsmount
     91  * structure).
     92  */
     93 struct dqblk {
     94 	u_int32_t dqb_bhardlimit;	/* absolute limit on disk blks alloc */
     95 	u_int32_t dqb_bsoftlimit;	/* preferred limit on disk blks */
     96 	u_int32_t dqb_curblocks;	/* current block count */
     97 	u_int32_t dqb_ihardlimit;	/* maximum # allocated inodes + 1 */
     98 	u_int32_t dqb_isoftlimit;	/* preferred inode limit */
     99 	u_int32_t dqb_curinodes;	/* current # allocated inodes */
    100 	int32_t	  dqb_btime;		/* time limit for excessive disk use */
    101 	int32_t	  dqb_itime;		/* time limit for excessive files */
    102 };
    103 
    104 /* quota1_subr.c */
    105 struct quota2_entry;
    106 void dqblk2ufsqe(const struct dqblk *, struct ufs_quota_entry *);
    107 void ufsqe2dqblk(const struct ufs_quota_entry *, struct dqblk *);
    108 #endif /* !_UFS_UFS_QUOTA1_H_ */
    109