1/* $NetBSD: quota1_subr.c,v 1.6 2011/11/25 16:55:05 dholland Exp $ */
2/*-
3  * Copyright (c) 2010 Manuel Bouyer
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
16  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
17  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
19  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25  * POSSIBILITY OF SUCH DAMAGE.
26  */
27
28#include <sys/cdefs.h>
29__KERNEL_RCSID(0, "$NetBSD: quota1_subr.c,v 1.6 2011/11/25 16:55:05 dholland Exp $");
30
31#include <sys/types.h>
32#include <machine/limits.h>
33
34#include <sys/quota.h>
35#include <ufs/ufs/quota1.h>
36
37static uint64_t
38dqblk2q2e_limit(uint32_t lim)
39{
40	if (lim == 0)
41		return UQUAD_MAX;
42	else
43		return (lim - 1);
44}
45
46static uint32_t
47q2e2dqblk_limit(uint64_t lim)
48{
49	if (lim == UQUAD_MAX)
50		return 0;
51	else
52		return (lim + 1);
53}
54
55void
56dqblk_to_quotavals(const struct dqblk *dqblk,
57		   struct quotaval *blocks, struct quotaval *files)
58{
59	/* XXX is qv_grace getting handled correctly? */
60
61	blocks->qv_hardlimit  = dqblk2q2e_limit(dqblk->dqb_bhardlimit);
62	blocks->qv_softlimit  = dqblk2q2e_limit(dqblk->dqb_bsoftlimit);
63	blocks->qv_usage      = dqblk->dqb_curblocks;
64	blocks->qv_expiretime = dqblk->dqb_btime;
65
66	files->qv_hardlimit  = dqblk2q2e_limit(dqblk->dqb_ihardlimit);
67	files->qv_softlimit  = dqblk2q2e_limit(dqblk->dqb_isoftlimit);
68	files->qv_usage      = dqblk->dqb_curinodes;
69	files->qv_expiretime = dqblk->dqb_itime;
70}
71
72void
73quotavals_to_dqblk(const struct quotaval *blocks, const struct quotaval *files,
74		   struct dqblk *dqblk)
75{
76	/* XXX is qv_grace getting handled correctly? */
77
78	dqblk->dqb_bhardlimit = q2e2dqblk_limit(blocks->qv_hardlimit);
79	dqblk->dqb_bsoftlimit = q2e2dqblk_limit(blocks->qv_softlimit);
80	dqblk->dqb_curblocks  = blocks->qv_usage;
81	dqblk->dqb_btime      = blocks->qv_expiretime;
82
83	dqblk->dqb_ihardlimit = q2e2dqblk_limit(files->qv_hardlimit);
84	dqblk->dqb_isoftlimit = q2e2dqblk_limit(files->qv_softlimit);
85	dqblk->dqb_curinodes  = files->qv_usage;
86	dqblk->dqb_itime      = files->qv_expiretime;
87}
88
89