minix/sys/ufs/ufs/quota2_subr.c
Lionel Sambuc 84d9c625bf Synchronize on NetBSD-CVS (2013/12/1 12:00:00 UTC)
- Fix for possible unset uid/gid in toproto
 - Fix for default mtree style
 - Update libelf
 - Importing libexecinfo
 - Resynchronize GCC, mpc, gmp, mpfr
 - build.sh: Replace params with show-params.
     This has been done as the make target has been renamed in the same
     way, while a new target named params has been added. This new
     target generates a file containing all the parameters, instead of
     printing it on the console.
 - Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
     get getservbyport() out of the inner loop

Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
2014-07-28 17:05:06 +02:00

128 lines
4.1 KiB
C

/* $NetBSD: quota2_subr.c,v 1.5 2012/02/05 14:19:04 dholland Exp $ */
/*-
* Copyright (c) 2010, 2011 Manuel Bouyer
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: quota2_subr.c,v 1.5 2012/02/05 14:19:04 dholland Exp $");
#include <sys/param.h>
#include <sys/time.h>
#include <ufs/ufs/dinode.h>
#include <ufs/ffs/fs.h>
#include <ufs/ffs/ffs_extern.h>
#include <ufs/ufs/ufs_bswap.h>
#include <ufs/ufs/quota2.h>
#ifndef _KERNEL
#include <string.h>
#endif
void
quota2_addfreeq2e(struct quota2_header *q2h, void *bp, uint64_t baseoff,
uint64_t bsize, int ns)
{
uint64_t blkoff = baseoff % bsize;
int i, nq2e;
struct quota2_entry *q2e;
q2e = (void *)((char *)bp + blkoff);
nq2e = (bsize - blkoff) / sizeof(*q2e);
for (i = 0; i < nq2e; i++) {
q2e[i].q2e_next = q2h->q2h_free;
q2h->q2h_free = ufs_rw64(i * sizeof(*q2e) + baseoff, ns);
}
}
void
quota2_create_blk0(uint64_t bsize, void *bp, int q2h_hash_shift, int type,
int ns)
{
struct quota2_header *q2h;
const int quota2_hash_size = 1 << q2h_hash_shift;
const int quota2_full_header_size = sizeof(struct quota2_header) +
sizeof(q2h->q2h_entries[0]) * quota2_hash_size;
int i;
memset(bp, 0, bsize);
q2h = bp;
q2h->q2h_magic_number = ufs_rw32(Q2_HEAD_MAGIC, ns);
q2h->q2h_type = type;
q2h->q2h_hash_shift = q2h_hash_shift;
q2h->q2h_hash_size = ufs_rw16(quota2_hash_size, ns);
/* setup defaut entry: unlimited, 7 days grace */
for (i = 0; i < N_QL; i++) {
q2h->q2h_defentry.q2e_val[i].q2v_hardlimit =
q2h->q2h_defentry.q2e_val[i].q2v_softlimit =
ufs_rw64(UQUAD_MAX, ns);
q2h->q2h_defentry.q2e_val[i].q2v_grace =
ufs_rw64(7ULL * 24ULL * 3600ULL, ns);
}
/* first quota entry, after the hash table */
quota2_addfreeq2e(q2h, bp, quota2_full_header_size, bsize, ns);
}
void
quota2_ufs_rwq2v(const struct quota2_val *s, struct quota2_val *d, int needswap)
{
d->q2v_hardlimit = ufs_rw64(s->q2v_hardlimit, needswap);
d->q2v_softlimit = ufs_rw64(s->q2v_softlimit, needswap);
d->q2v_cur = ufs_rw64(s->q2v_cur, needswap);
d->q2v_time = ufs_rw64(s->q2v_time, needswap);
d->q2v_grace = ufs_rw64(s->q2v_grace, needswap);
}
void
quota2_ufs_rwq2e(const struct quota2_entry *s, struct quota2_entry *d,
int needswap)
{
quota2_ufs_rwq2v(&s->q2e_val[QL_BLOCK], &d->q2e_val[QL_BLOCK],
needswap);
quota2_ufs_rwq2v(&s->q2e_val[QL_FILE], &d->q2e_val[QL_FILE],
needswap);
d->q2e_uid = ufs_rw32(s->q2e_uid, needswap);
}
int
quota_check_limit(uint64_t cur, uint64_t change, uint64_t soft, uint64_t hard,
time_t expire, time_t now)
{
if (cur + change > hard) {
if (cur <= soft)
return (QL_F_CROSS | QL_S_DENY_HARD);
return QL_S_DENY_HARD;
} else if (cur + change > soft) {
if (cur <= soft)
return (QL_F_CROSS | QL_S_ALLOW_SOFT);
if (now > expire) {
return QL_S_DENY_GRACE;
}
return QL_S_ALLOW_SOFT;
}
return QL_S_ALLOW_OK;
}