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/* $NetBSD: ulfsmount.h,v 1.13 2015/05/31 15:48:03 hannken Exp $ */
/* from NetBSD: ufsmount.h,v 1.39 2012/10/19 17:09:08 drochner Exp */
/*
* Copyright (c) 1982, 1986, 1989, 1993
* The Regents of the University of California. 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.
* 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.
*
* @(#)ufsmount.h 8.6 (Berkeley) 3/30/95
*/
#ifndef _UFS_LFS_ULFSMOUNT_H_
#define _UFS_LFS_ULFSMOUNT_H_
#include <sys/mount.h> /* struct export_args30 */
#ifdef _KERNEL
#if defined(_KERNEL_OPT)
#include "opt_lfs.h"
#endif
#include <sys/mutex.h>
#include <ufs/lfs/ulfs_extattr.h>
#include <ufs/lfs/ulfs_quotacommon.h>
struct buf;
struct inode;
struct nameidata;
struct timeval;
struct uio;
struct vnode;
/* This structure describes the ULFS specific mount structure data. */
struct ulfsmount {
/* Abstract vfs-level filesystem structure. */
struct mount *um_mountp;
/* The block device we're mounted on. */
dev_t um_dev;
struct vnode *um_devvp;
/* type of fs; currently always ULFS1, theoretically also ULFS2 */
u_long um_fstype;
/* pointer to the filesystem-specific filesystem structure */
struct lfs *um_lfs;
/* Extended attribute information. */
struct ulfs_extattr_per_mount um_extattr;
/* Cleaner lwp, set on first bmapv syscall. */
struct lwp *um_cleaner_thread;
/* Hint from cleaner, only valid if curlwp == um_cleaner_thread. */
BLOCK_INFO *um_cleaner_hint;
/* Quota-related material. */
struct vnode *um_quotas[ULFS_MAXQUOTAS]; /* quota files */
kauth_cred_t um_cred[ULFS_MAXQUOTAS]; /* quota file access cred */
union {
struct um_q1 {
time_t q1_btime[ULFS_MAXQUOTAS]; /* block quota time limit */
time_t q1_itime[ULFS_MAXQUOTAS]; /* inode quota time limit */
char q1_qflags[ULFS_MAXQUOTAS]; /* quota flags */
} um_q1;
struct um_q2 {
uint64_t q2_bsize; /* block size of quota file */
uint64_t q2_bmask; /* mask for above */
} um_q2;
} um_q;
#define umq1_btime um_q.um_q1.q1_btime
#define umq1_itime um_q.um_q1.q1_itime
#define umq1_qflags um_q.um_q1.q1_qflags
#define umq2_bsize um_q.um_q2.q2_bsize
#define umq2_bmask um_q.um_q2.q2_bmask
};
/* ULFS-specific flags for um_flags */
#define ULFS_NEEDSWAP 0x01 /* filesystem metadata need byte-swapping */
/* unused 0x02 */
#define ULFS_QUOTA 0x04 /* filesystem has QUOTA (v1) */
#define ULFS_QUOTA2 0x08 /* filesystem has QUOTA2 */
/*
* Filesystem types
*/
#define ULFS1 1
#define ULFS2 2
/*
* Flags describing the state of quotas.
*/
#define QTF_OPENING 0x01 /* Q_QUOTAON in progress */
#define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */
/* Convert mount ptr to ulfsmount ptr. */
#define VFSTOULFS(mp) ((struct ulfsmount *)((mp)->mnt_data))
/*
* Macros to access file system parameters (no longer) in the
* ulfsmount structure.
* Used by ulfs_bmap.
*/
#define MNINDIR(lfs) ((lfs)->um_nindir)
#define blkptrtodb(lfs, b) ((b) << (lfs)->um_bptrtodb)
/*
* Predicate for byte-swapping support.
*/
#define FSFMT(vp) (((vp)->v_mount->mnt_iflag & IMNT_DTYPE) == 0)
#endif /* _KERNEL */
#endif /* !_UFS_LFS_ULFSMOUNT_H_ */
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