135 lines
4.2 KiB
C
135 lines
4.2 KiB
C
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/* $NetBSD: ulfsmount.h,v 1.12 2013/07/28 01:10:49 dholland Exp $ */
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/* from NetBSD: ufsmount.h,v 1.39 2012/10/19 17:09:08 drochner Exp */
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/*
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* Copyright (c) 1982, 1986, 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)ufsmount.h 8.6 (Berkeley) 3/30/95
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*/
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#ifndef _UFS_LFS_ULFSMOUNT_H_
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#define _UFS_LFS_ULFSMOUNT_H_
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#include <sys/mount.h> /* struct export_args30 */
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#ifdef _KERNEL
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#if defined(_KERNEL_OPT)
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#include "opt_lfs.h"
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#endif
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#include <sys/mutex.h>
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#include <ufs/lfs/ulfs_extattr.h>
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#include <ufs/lfs/ulfs_quotacommon.h>
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struct buf;
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struct inode;
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struct nameidata;
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struct timeval;
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struct uio;
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struct vnode;
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/* This structure describes the ULFS specific mount structure data. */
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struct ulfsmount {
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/* Abstract vfs-level filesystem structure. */
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struct mount *um_mountp;
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/* The block device we're mounted on. */
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dev_t um_dev;
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struct vnode *um_devvp;
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/* type of fs; currently always ULFS1, theoretically also ULFS2 */
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u_long um_fstype;
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/* pointer to the filesystem-specific filesystem structure */
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struct lfs *um_lfs;
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/* Extended attribute information. */
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struct ulfs_extattr_per_mount um_extattr;
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/* Quota-related material. */
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struct vnode *um_quotas[ULFS_MAXQUOTAS]; /* quota files */
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kauth_cred_t um_cred[ULFS_MAXQUOTAS]; /* quota file access cred */
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union {
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struct um_q1 {
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time_t q1_btime[ULFS_MAXQUOTAS]; /* block quota time limit */
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time_t q1_itime[ULFS_MAXQUOTAS]; /* inode quota time limit */
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char q1_qflags[ULFS_MAXQUOTAS]; /* quota flags */
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} um_q1;
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struct um_q2 {
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uint64_t q2_bsize; /* block size of quota file */
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uint64_t q2_bmask; /* mask for above */
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} um_q2;
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} um_q;
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#define umq1_btime um_q.um_q1.q1_btime
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#define umq1_itime um_q.um_q1.q1_itime
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#define umq1_qflags um_q.um_q1.q1_qflags
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#define umq2_bsize um_q.um_q2.q2_bsize
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#define umq2_bmask um_q.um_q2.q2_bmask
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};
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/* ULFS-specific flags for um_flags */
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#define ULFS_NEEDSWAP 0x01 /* filesystem metadata need byte-swapping */
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/* unused 0x02 */
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#define ULFS_QUOTA 0x04 /* filesystem has QUOTA (v1) */
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#define ULFS_QUOTA2 0x08 /* filesystem has QUOTA2 */
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/*
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* Filesystem types
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*/
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#define ULFS1 1
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#define ULFS2 2
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/*
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* Flags describing the state of quotas.
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*/
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#define QTF_OPENING 0x01 /* Q_QUOTAON in progress */
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#define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */
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/* Convert mount ptr to ulfsmount ptr. */
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#define VFSTOULFS(mp) ((struct ulfsmount *)((mp)->mnt_data))
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/*
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* Macros to access file system parameters (no longer) in the
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* ulfsmount structure.
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* Used by ulfs_bmap.
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*/
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#define MNINDIR(lfs) ((lfs)->um_nindir)
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#define blkptrtodb(lfs, b) ((b) << (lfs)->um_bptrtodb)
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/*
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* Predicate for byte-swapping support.
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*/
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#define FSFMT(vp) (((vp)->v_mount->mnt_iflag & IMNT_DTYPE) == 0)
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#endif /* _KERNEL */
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#endif /* !_UFS_LFS_ULFSMOUNT_H_ */
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