Annotation of src/sys/ufs/ufs/ufsmount.h, Revision 1.40.2.1
1.40.2.1! rmind 1: /* $NetBSD$ */
1.4 mycroft 2:
1.1 mycroft 3: /*
4: * Copyright (c) 1982, 1986, 1989, 1993
5: * The Regents of the University of California. All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
1.14 agc 15: * 3. Neither the name of the University nor the names of its contributors
1.1 mycroft 16: * may be used to endorse or promote products derived from this software
17: * without specific prior written permission.
18: *
19: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29: * SUCH DAMAGE.
30: *
1.6 fvdl 31: * @(#)ufsmount.h 8.6 (Berkeley) 3/30/95
1.1 mycroft 32: */
33:
1.10 matt 34: #ifndef _UFS_UFS_UFSMOUNT_H_
35: #define _UFS_UFS_UFSMOUNT_H_
36:
1.32 pooka 37: #include <sys/mount.h> /* struct export_args30 */
38:
1.6 fvdl 39: /*
40: * Arguments to mount UFS-based filesystems
41: */
42: struct ufs_args {
43: char *fspec; /* block special device to mount */
44: };
45:
46: /*
47: * Arguments to mount MFS
48: */
49: struct mfs_args {
50: char *fspec; /* name to export for statfs */
1.21 jmmv 51: struct export_args30 _pad1; /* compat with old userland tools */
1.28 christos 52: void * base; /* base of file system in memory */
1.6 fvdl 53: u_long size; /* size of file system */
54: };
55:
56: #ifdef _KERNEL
1.9 dbj 57:
58: #if defined(_KERNEL_OPT)
59: #include "opt_ffs.h"
60: #endif
61:
1.29 ad 62: #include <sys/mutex.h>
63:
1.19 thorpej 64: #include <ufs/ufs/extattr.h>
1.30 pooka 65: #include <ufs/ufs/quota.h>
1.19 thorpej 66:
1.1 mycroft 67: struct buf;
68: struct inode;
69: struct nameidata;
70: struct timeval;
71: struct uio;
72: struct vnode;
73:
74: /* This structure describes the UFS specific mount structure data. */
75: struct ufsmount {
76: struct mount *um_mountp; /* filesystem vfs structure */
77: dev_t um_dev; /* device mounted */
78: struct vnode *um_devvp; /* block device mounted vnode */
1.11 fvdl 79: u_long um_fstype;
1.7 bouyer 80: u_int32_t um_flags; /* UFS-specific flags - see below */
1.1 mycroft 81: union { /* pointer to superblock */
1.5 bouyer 82: struct fs *fs; /* FFS */
1.1 mycroft 83: struct lfs *lfs; /* LFS */
1.37 ahoka 84: struct m_ext2fs *e2fs; /* EXT2FS */
85: struct chfs_mount *chfs; /* CHFS */
1.1 mycroft 86: } ufsmount_u;
87: #define um_fs ufsmount_u.fs
88: #define um_lfs ufsmount_u.lfs
1.5 bouyer 89: #define um_e2fs ufsmount_u.e2fs
90: #define um_e2fsb ufsmount_u.e2fs->s_es
1.37 ahoka 91: #define um_chfs ufsmount_u.chfs
1.3 mycroft 92:
1.19 thorpej 93: /* Extended attribute information. */
94: struct ufs_extattr_per_mount um_extattr;
95:
1.1 mycroft 96: struct vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */
1.27 elad 97: kauth_cred_t um_cred[MAXQUOTAS]; /* quota file access cred */
1.1 mycroft 98: u_long um_nindir; /* indirect ptrs per block */
1.8 chs 99: u_long um_lognindir; /* log2 of um_nindir */
1.1 mycroft 100: u_long um_bptrtodb; /* indir ptr to disk block */
101: u_long um_seqinc; /* inc between seq blocks */
1.29 ad 102: kmutex_t um_lock; /* lock on global data */
1.36 bouyer 103: union {
104: struct um_q1 {
105: time_t q1_btime[MAXQUOTAS]; /* block quota time limit */
106: time_t q1_itime[MAXQUOTAS]; /* inode quota time limit */
107: char q1_qflags[MAXQUOTAS]; /* quota specific flags */
108: } um_q1;
109: struct um_q2 {
110: uint64_t q2_bsize; /* block size of quota file */
111: uint64_t q2_bmask; /* mask for above */
112: } um_q2;
113: } um_q;
114: #define umq1_btime um_q.um_q1.q1_btime
115: #define umq1_itime um_q.um_q1.q1_itime
116: #define umq1_qflags um_q.um_q1.q1_qflags
117: #define umq2_bsize um_q.um_q2.q2_bsize
118: #define umq2_bmask um_q.um_q2.q2_bmask
119:
1.16 hannken 120: void *um_oldfscompat; /* save 4.2 rotbl */
1.17 mycroft 121: int um_maxsymlinklen;
122: int um_dirblksiz;
1.22 yamt 123: u_int64_t um_maxfilesize;
1.34 hannken 124: void *um_snapinfo; /* snapshot private data */
1.23 yamt 125:
126: const struct ufs_ops *um_ops;
1.39 drochner 127:
128: void *um_discarddata;
1.23 yamt 129: };
130:
131: struct ufs_ops {
132: void (*uo_itimes)(struct inode *ip, const struct timespec *,
133: const struct timespec *, const struct timespec *);
1.24 yamt 134: int (*uo_update)(struct vnode *, const struct timespec *,
135: const struct timespec *, int);
1.33 pooka 136: int (*uo_truncate)(struct vnode *, off_t, int, kauth_cred_t);
1.27 elad 137: int (*uo_valloc)(struct vnode *, int, kauth_cred_t, struct vnode **);
1.24 yamt 138: int (*uo_vfree)(struct vnode *, ino_t, int);
1.27 elad 139: int (*uo_balloc)(struct vnode *, off_t, int, kauth_cred_t, int,
1.24 yamt 140: struct buf **);
1.40 hannken 141: void (*uo_snapgone)(struct vnode *);
1.1 mycroft 142: };
1.7 bouyer 143:
1.24 yamt 144: #define UFS_OPS(vp) (VFSTOUFS((vp)->v_mount)->um_ops)
145:
1.23 yamt 146: #define UFS_ITIMES(vp, acc, mod, cre) \
1.24 yamt 147: (*UFS_OPS(vp)->uo_itimes)(VTOI(vp), (acc), (mod), (cre))
148: #define UFS_UPDATE(vp, acc, mod, flags) \
149: (*UFS_OPS(vp)->uo_update)((vp), (acc), (mod), (flags))
1.33 pooka 150: #define UFS_TRUNCATE(vp, off, flags, cr) \
151: (*UFS_OPS(vp)->uo_truncate)((vp), (off), (flags), (cr))
1.24 yamt 152: #define UFS_VALLOC(vp, mode, cr, vpp) \
153: (*UFS_OPS(vp)->uo_valloc)((vp), (mode), (cr), (vpp))
154: #define UFS_VFREE(vp, ino, mode) \
155: (*UFS_OPS(vp)->uo_vfree)((vp), (ino), (mode))
156: #define UFS_BALLOC(vp, off, size, cr, flags, bpp) \
157: (*UFS_OPS(vp)->uo_balloc)((vp), (off), (size), (cr), (flags), (bpp))
1.40 hannken 158: #define UFS_SNAPGONE(vp) \
159: (*UFS_OPS(vp)->uo_snapgone)((vp))
1.23 yamt 160:
1.7 bouyer 161: /* UFS-specific flags */
162: #define UFS_NEEDSWAP 0x01 /* filesystem metadata need byte-swapping */
1.9 dbj 163: #define UFS_ISAPPLEUFS 0x02 /* filesystem is Apple UFS */
1.36 bouyer 164: #define UFS_QUOTA 0x04 /* filesystem has QUOTA (v1) */
165: #define UFS_QUOTA2 0x08 /* filesystem has QUOTA2 */
1.11 fvdl 166:
167: /*
168: * Filesystem types
169: */
170: #define UFS1 1
171: #define UFS2 2
172:
1.3 mycroft 173:
1.1 mycroft 174: /*
175: * Flags describing the state of quotas.
176: */
177: #define QTF_OPENING 0x01 /* Q_QUOTAON in progress */
178: #define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */
179:
180: /* Convert mount ptr to ufsmount ptr. */
181: #define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data))
1.9 dbj 182:
183: #ifdef APPLE_UFS
1.17 mycroft 184: #define UFS_MPISAPPLEUFS(ump) ((ump)->um_flags & UFS_ISAPPLEUFS)
1.9 dbj 185: #else
1.17 mycroft 186: #define UFS_MPISAPPLEUFS(ump) (0)
1.9 dbj 187: #endif
1.1 mycroft 188:
189: /*
190: * Macros to access file system parameters in the ufsmount structure.
191: * Used by ufs_bmap.
192: */
1.3 mycroft 193: #define MNINDIR(ump) ((ump)->um_nindir)
194: #define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb)
1.38 riastrad 195:
196: /*
197: * Predicate for byte-swapping support.
198: */
199: #define FSFMT(vp) (((vp)->v_mount->mnt_iflag & IMNT_DTYPE) == 0)
200:
1.6 fvdl 201: #endif /* _KERNEL */
1.10 matt 202:
203: #endif /* !_UFS_UFS_UFSMOUNT_H_ */
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