1/* $NetBSD: ulfsmount.h,v 1.18 2016/06/20 03:36:09 dholland Exp $ */
2/* from NetBSD: ufsmount.h,v 1.43 2015/03/27 17:27:56 riastradh Exp */
3
4/*
5 * Copyright (c) 1982, 1986, 1989, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * @(#)ufsmount.h 8.6 (Berkeley) 3/30/95
33 */
34
35#ifndef _UFS_LFS_ULFSMOUNT_H_
36#define _UFS_LFS_ULFSMOUNT_H_
37
38#include <sys/mount.h> /* struct export_args30 */
39
40#ifdef _KERNEL
41
42#if defined(_KERNEL_OPT)
43#include "opt_lfs.h"
44#endif
45
46#include <sys/mutex.h>
47
48#include <ufs/lfs/ulfs_extattr.h>
49#include <ufs/lfs/ulfs_quotacommon.h>
50
51struct buf;
52struct inode;
53struct nameidata;
54struct timeval;
55struct uio;
56struct vnode;
57
58/* This structure describes the ULFS specific mount structure data. */
59struct ulfsmount {
60 /* Abstract vfs-level filesystem structure. */
61 struct mount *um_mountp;
62
63 /* type of fs; currently always ULFS1, theoretically also ULFS2 */
64 u_long um_fstype;
65
66 /* pointer to the filesystem-specific filesystem structure */
67 struct lfs *um_lfs;
68
69 /* Extended attribute information. */
70 struct ulfs_extattr_per_mount um_extattr;
71
72 /* Quota-related material. */
73 struct vnode *um_quotas[ULFS_MAXQUOTAS]; /* quota files */
74 kauth_cred_t um_cred[ULFS_MAXQUOTAS]; /* quota file access cred */
75 union {
76 struct um_q1 {
77 time_t q1_btime[ULFS_MAXQUOTAS]; /* block quota time limit */
78 time_t q1_itime[ULFS_MAXQUOTAS]; /* inode quota time limit */
79 char q1_qflags[ULFS_MAXQUOTAS]; /* quota flags */
80 } um_q1;
81 struct um_q2 {
82 uint64_t q2_bsize; /* block size of quota file */
83 uint64_t q2_bmask; /* mask for above */
84 } um_q2;
85 } um_q;
86#define umq1_btime um_q.um_q1.q1_btime
87#define umq1_itime um_q.um_q1.q1_itime
88#define umq1_qflags um_q.um_q1.q1_qflags
89#define umq2_bsize um_q.um_q2.q2_bsize
90#define umq2_bmask um_q.um_q2.q2_bmask
91};
92
93/* ULFS-specific flags for um_flags */
94#define ULFS_NEEDSWAP 0x01 /* filesystem metadata need byte-swapping */
95/* unused 0x02 */
96#define ULFS_QUOTA 0x04 /* filesystem has QUOTA (v1) */
97#define ULFS_QUOTA2 0x08 /* filesystem has QUOTA2 */
98
99/*
100 * Filesystem types
101 */
102#define ULFS1 1
103#define ULFS2 2
104
105
106/*
107 * Flags describing the state of quotas.
108 */
109#define QTF_OPENING 0x01 /* Q_QUOTAON in progress */
110#define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */
111
112/* Convert mount ptr to ulfsmount ptr. */
113#define VFSTOULFS(mp) ((struct ulfsmount *)((mp)->mnt_data))
114
115/*
116 * Macros to access file system parameters (no longer) in the
117 * ulfsmount structure.
118 * Used by ulfs_bmap.
119 */
120#define MNINDIR(lfs) ((lfs)->um_nindir)
121#define blkptrtodb(lfs, b) ((b) << (lfs)->um_bptrtodb)
122
123/*
124 * Predicate for byte-swapping support.
125 */
126#define FSFMT(vp) (((vp)->v_mount->mnt_iflag & IMNT_DTYPE) == 0)
127
128#endif /* _KERNEL */
129
130#endif /* !_UFS_LFS_ULFSMOUNT_H_ */
131