minix/include/ufs/ufs/ufs_quota.h
Ben Gras 2fe8fb192f Full switch to clang/ELF. Drop ack. Simplify.
There is important information about booting non-ack images in
docs/UPDATING. ack/aout-format images can't be built any more, and
booting clang/ELF-format ones is a little different. Updating to the
new boot monitor is recommended.

Changes in this commit:

	. drop boot monitor -> allowing dropping ack support
	. facility to copy ELF boot files to /boot so that old boot monitor
	  can still boot fairly easily, see UPDATING
	. no more ack-format libraries -> single-case libraries
	. some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases
	. drop several ack toolchain commands, but not all support
	  commands (e.g. aal is gone but acksize is not yet).
	. a few libc files moved to netbsd libc dir
	. new /bin/date as minix date used code in libc/
	. test compile fix
	. harmonize includes
	. /usr/lib is no longer special: without ack, /usr/lib plays no
	  kind of special bootstrapping role any more and bootstrapping
	  is done exclusively through packages, so releases depend even
	  less on the state of the machine making them now.
	. rename nbsd_lib* to lib*
	. reduce mtree
2012-02-14 14:52:02 +01:00

131 lines
5.3 KiB
C

/* $NetBSD: ufs_quota.h,v 1.2 2011/03/06 17:08:39 bouyer Exp $ */
/*
* Copyright (c) 1982, 1986, 1990, 1993, 1995
* 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.
*
* @(#)ufs_quota.c 8.5 (Berkeley) 5/20/95
*/
#include <ufs/ufs/quota1.h>
#include <ufs/ufs/quota2.h>
/* link to this quota in the quota inode (for QUOTA2) */
struct dq2_desc {
uint64_t dq2_lblkno; /* logical disk block holding this quota */
u_int dq2_blkoff; /* offset in disk block holding this quota */
};
/*
* The following structure records disk usage for a user or group on a
* filesystem. There is one allocated for each quota that exists on any
* filesystem for the current user or group. A cache is kept of recently
* used entries.
* Field markings and the corresponding locks:
* h: dqlock
* d: dq_interlock
*
* Lock order is: dq_interlock -> dqlock
* dq_interlock -> dqvp
*/
struct dquot {
LIST_ENTRY(dquot) dq_hash; /* h: hash list */
u_int16_t dq_flags; /* d: flags, see below */
u_int16_t dq_type; /* d: quota type of this dquot */
u_int32_t dq_cnt; /* h: count of active references */
u_int32_t dq_id; /* d: identifier this applies to */
struct ufsmount *dq_ump; /* d: filesystem this is taken from */
kmutex_t dq_interlock; /* d: lock this dquot */
union {
struct dqblk dq1_dqb; /* d: actual usage & quotas */
struct dq2_desc dq2_desc; /* d: pointer to quota data */
} dq_un;
};
/*
* Flag values.
*/
#define DQ_MOD 0x04 /* this quota modified since read */
#define DQ_FAKE 0x08 /* no limits here, just usage */
#define DQ_WARN(ltype) (0x10 << ltype) /* has been warned about "type" limit */
/*
* Shorthand notation.
*/
#define dq_bhardlimit dq_un.dq1_dqb.dqb_bhardlimit
#define dq_bsoftlimit dq_un.dq1_dqb.dqb_bsoftlimit
#define dq_curblocks dq_un.dq1_dqb.dqb_curblocks
#define dq_ihardlimit dq_un.dq1_dqb.dqb_ihardlimit
#define dq_isoftlimit dq_un.dq1_dqb.dqb_isoftlimit
#define dq_curinodes dq_un.dq1_dqb.dqb_curinodes
#define dq_btime dq_un.dq1_dqb.dqb_btime
#define dq_itime dq_un.dq1_dqb.dqb_itime
#define dq2_lblkno dq_un.dq2_desc.dq2_lblkno
#define dq2_blkoff dq_un.dq2_desc.dq2_blkoff
/*
* If the system has never checked for a quota for this file, then it is
* set to NODQUOT. Once a write attempt is made the inode pointer is set
* to reference a dquot structure.
*/
#define NODQUOT NULL
extern kmutex_t dqlock;
extern kcondvar_t dqcv;
/*
* Quota name to error message mapping.
*/
const char *quotatypes[MAXQUOTAS];
int getinoquota(struct inode *);
int dqget(struct vnode *, u_long, struct ufsmount *, int, struct dquot **);
void dqref(struct dquot *);
void dqrele(struct vnode *, struct dquot *);
void dqflush(struct vnode *);
int chkdq1(struct inode *, int64_t, kauth_cred_t, int);
int chkiq1(struct inode *, int32_t, kauth_cred_t, int);
int q1sync(struct mount *);
int dq1get(struct vnode *, u_long, struct ufsmount *, int, struct dquot *);
int dq1sync(struct vnode *, struct dquot *);
int quota1_handle_cmd_get(struct ufsmount *, int, int, int, prop_array_t);
int quota1_handle_cmd_set(struct ufsmount *, int, int, int, prop_dictionary_t);
int quota1_handle_cmd_quotaon(struct lwp *, struct ufsmount *, int,
const char *);
int quota1_handle_cmd_quotaoff(struct lwp *, struct ufsmount *, int);
int chkdq2(struct inode *, int64_t, kauth_cred_t, int);
int chkiq2(struct inode *, int32_t, kauth_cred_t, int);
int quota2_handle_cmd_get(struct ufsmount *, int, int, int, prop_array_t);
int quota2_handle_cmd_set(struct ufsmount *, int, int, int, prop_dictionary_t);
int quota2_handle_cmd_clear(struct ufsmount *, int, int, int, prop_dictionary_t);
int quota2_handle_cmd_getall(struct ufsmount *, int, prop_array_t);
int q2sync(struct mount *);
int dq2get(struct vnode *, u_long, struct ufsmount *, int, struct dquot *);
int dq2sync(struct vnode *, struct dquot *);