/* $OpenBSD: quota.h,v 1.12 2013/07/03 04:58:40 guenther Exp $ */ /* $NetBSD: quota.h,v 1.6 1995/03/26 20:38:17 jtc Exp $ */ /* * Copyright (c) 1982, 1986, 1993 * The 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. * 3. 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. * * @(#)quota.h 8.3 (Berkeley) 8/19/94 */ #ifndef _QUOTA_ #define _QUOTA_ /* * Definitions for disk quotas imposed on the average user * (big brother finally hits UNIX). * * 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 (7*24*60*60) /* seconds in 1 week */ #define MAX_DQ_TIME (7*24*60*60) /* seconds in 1 week */ /* * The following constants define the usage of the quota file array in the * ufsmount structure and dquot array in the inode structure. The semantics * of the elements of these arrays are defined in the routine getinoquota; * the remainder of the quota code treats them generically and need not be * inspected when changing the size of the array. */ #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 "operator" /* * 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)) #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 */ /* * 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. The setquota system call establishes * the vnode for each quota file (a pointer is retained in the ufsmount * structure). */ 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 + 1 */ u_int32_t dqb_isoftlimit; /* preferred inode limit */ u_int32_t dqb_curinodes; /* current # allocated inodes */ /* XXX 2038 */ u_int32_t dqb_btime; /* time limit for excessive disk use */ u_int32_t dqb_itime; /* time limit for excessive files */ }; #ifdef _KERNEL /* * Flags to ufs_quota_{alloc,free}_{blocks,inode}2 */ enum ufs_quota_flags { UFS_QUOTA_NOUID = 0x1, /* Don't change UID quota */ UFS_QUOTA_NOGID = 0x2, /* Don't change GID quota */ UFS_QUOTA_FORCE = 0x1000 /* don't check limits - just change it */ }; /* Change GID */ struct dquot; struct inode; struct mount; struct proc; struct ucred; struct ufsmount; struct vnode; __BEGIN_DECLS #define ufs_quota_alloc_blocks(i, c, cr) ufs_quota_alloc_blocks2(i, c, cr, 0) #define ufs_quota_free_blocks(i, c, cr) ufs_quota_free_blocks2(i, c, cr, 0) #define ufs_quota_alloc_inode(i, cr) ufs_quota_alloc_inode2(i, cr, 0) #define ufs_quota_free_inode(i, cr) ufs_quota_free_inode2(i, cr, 0) int ufs_quota_alloc_blocks2(struct inode *, daddr_t, struct ucred *, enum ufs_quota_flags); int ufs_quota_free_blocks2(struct inode *, daddr_t, struct ucred *, enum ufs_quota_flags); int ufs_quota_alloc_inode2(struct inode *, struct ucred *, enum ufs_quota_flags); int ufs_quota_free_inode2(struct inode *, struct ucred *, enum ufs_quota_flags); int ufs_quota_delete(struct inode *); int getinoquota(struct inode *); int quotaoff(struct proc *, struct mount *, int); int qsync(struct mount *mp); int ufs_quotactl(struct mount *, int, uid_t, caddr_t, struct proc *); void ufs_quota_init(void); __END_DECLS #endif /* _KERNEL */ #endif /* _QUOTA_ */
