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minix/sys/ufs/ufs/ufsmount.h
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

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/* $NetBSD: ufsmount.h,v 1.41 2013/08/11 04:36:17 dholland 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_UFS_UFSMOUNT_H_
#define _UFS_UFS_UFSMOUNT_H_
#include <sys/mount.h> /* struct export_args30 */
/*
* Arguments to mount UFS-based filesystems
*/
struct ufs_args {
char *fspec; /* block special device to mount */
};
#if !defined(__minix)
/*
* Arguments to mount MFS
*/
struct mfs_args {
char *fspec; /* name to export for statfs */
struct export_args30 _pad1; /* compat with old userland tools */
void * base; /* base of file system in memory */
u_long size; /* size of file system */
};
#endif /* !defined(__minix) */
#ifdef _KERNEL
#if defined(_KERNEL_OPT)
#include "opt_ffs.h"
#endif
#include <sys/mutex.h>
#include <ufs/ufs/extattr.h>
#include <ufs/ufs/quota.h>
struct buf;
struct inode;
struct nameidata;
struct timeval;
struct uio;
struct vnode;
/* This structure describes the UFS specific mount structure data. */
struct ufsmount {
struct mount *um_mountp; /* filesystem vfs structure */
dev_t um_dev; /* device mounted */
struct vnode *um_devvp; /* block device mounted vnode */
u_long um_fstype;
u_int32_t um_flags; /* UFS-specific flags - see below */
union { /* pointer to superblock */
struct fs *fs; /* FFS */
struct lfs *lfs; /* LFS */
struct m_ext2fs *e2fs; /* EXT2FS */
struct chfs_mount *chfs; /* CHFS */
} ufsmount_u;
#define um_fs ufsmount_u.fs
#define um_lfs ufsmount_u.lfs
#define um_e2fs ufsmount_u.e2fs
#define um_e2fsb ufsmount_u.e2fs->s_es
#define um_chfs ufsmount_u.chfs
/* Extended attribute information. */
struct ufs_extattr_per_mount um_extattr;
struct vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */
kauth_cred_t um_cred[MAXQUOTAS]; /* quota file access cred */
u_long um_nindir; /* indirect ptrs per block */
u_long um_lognindir; /* log2 of um_nindir */
u_long um_bptrtodb; /* indir ptr to disk block */
u_long um_seqinc; /* inc between seq blocks */
kmutex_t um_lock; /* lock on global data */
union {
struct um_q1 {
time_t q1_btime[MAXQUOTAS]; /* block quota time limit */
time_t q1_itime[MAXQUOTAS]; /* inode quota time limit */
char q1_qflags[MAXQUOTAS]; /* quota specific 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
void *um_oldfscompat; /* save 4.2 rotbl */
int um_maxsymlinklen;
int um_dirblksiz;
u_int64_t um_maxfilesize;
void *um_snapinfo; /* snapshot private data */
const struct ufs_ops *um_ops;
void *um_discarddata;
};
struct ufs_ops {
void (*uo_itimes)(struct inode *ip, const struct timespec *,
const struct timespec *, const struct timespec *);
int (*uo_update)(struct vnode *, const struct timespec *,
const struct timespec *, int);
int (*uo_truncate)(struct vnode *, off_t, int, kauth_cred_t);
int (*uo_valloc)(struct vnode *, int, kauth_cred_t, struct vnode **);
int (*uo_vfree)(struct vnode *, ino_t, int);
int (*uo_balloc)(struct vnode *, off_t, int, kauth_cred_t, int,
struct buf **);
void (*uo_snapgone)(struct vnode *);
};
#define UFS_OPS(vp) (VFSTOUFS((vp)->v_mount)->um_ops)
#define UFS_ITIMES(vp, acc, mod, cre) \
(*UFS_OPS(vp)->uo_itimes)(VTOI(vp), (acc), (mod), (cre))
#define UFS_UPDATE(vp, acc, mod, flags) \
(*UFS_OPS(vp)->uo_update)((vp), (acc), (mod), (flags))
#define UFS_TRUNCATE(vp, off, flags, cr) \
(*UFS_OPS(vp)->uo_truncate)((vp), (off), (flags), (cr))
#define UFS_VALLOC(vp, mode, cr, vpp) \
(*UFS_OPS(vp)->uo_valloc)((vp), (mode), (cr), (vpp))
#define UFS_VFREE(vp, ino, mode) \
(*UFS_OPS(vp)->uo_vfree)((vp), (ino), (mode))
#define UFS_BALLOC(vp, off, size, cr, flags, bpp) \
(*UFS_OPS(vp)->uo_balloc)((vp), (off), (size), (cr), (flags), (bpp))
#define UFS_SNAPGONE(vp) \
(*UFS_OPS(vp)->uo_snapgone)((vp))
/* UFS-specific flags */
#define UFS_NEEDSWAP 0x01 /* filesystem metadata need byte-swapping */
#define UFS_ISAPPLEUFS 0x02 /* filesystem is Apple UFS */
#define UFS_QUOTA 0x04 /* filesystem has QUOTA (v1) */
#define UFS_QUOTA2 0x08 /* filesystem has QUOTA2 */
/*
* Filesystem types
*/
#define UFS1 1
#define UFS2 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 ufsmount ptr. */
#define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data))
#ifdef APPLE_UFS
#define UFS_MPISAPPLEUFS(ump) ((ump)->um_flags & UFS_ISAPPLEUFS)
#else
#define UFS_MPISAPPLEUFS(ump) (0)
#endif
/*
* Macros to access file system parameters in the ufsmount structure.
* Used by ufs_bmap.
*/
#define MNINDIR(ump) ((ump)->um_nindir)
#define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb)
/*
* Predicate for byte-swapping support.
*/
#define FSFMT(vp) (((vp)->v_mount->mnt_iflag & IMNT_DTYPE) == 0)
#endif /* _KERNEL */
#endif /* !_UFS_UFS_UFSMOUNT_H_ */
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