ulfsmount.h revision 1.2
1 /* $NetBSD: ulfsmount.h,v 1.2 2013/06/06 00:44:41 dholland Exp $ */ 2 /* from NetBSD: ufsmount.h,v 1.39 2012/10/19 17:09:08 drochner 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_UFS_UFSMOUNT_H_ 36 #define _UFS_UFS_UFSMOUNT_H_ 37 38 #include <sys/mount.h> /* struct export_args30 */ 39 40 /* 41 * Arguments to mount UFS-based filesystems 42 */ 43 struct ufs_args { 44 char *fspec; /* block special device to mount */ 45 }; 46 47 /* 48 * Arguments to mount MFS 49 */ 50 struct mfs_args { 51 char *fspec; /* name to export for statfs */ 52 struct export_args30 _pad1; /* compat with old userland tools */ 53 void * base; /* base of file system in memory */ 54 u_long size; /* size of file system */ 55 }; 56 57 #ifdef _KERNEL 58 59 #if defined(_KERNEL_OPT) 60 #include "opt_ffs.h" 61 #endif 62 63 #include <sys/mutex.h> 64 65 #include <ufs/lfs/ulfs_extattr.h> 66 #include <ufs/lfs/ulfs_quotacommon.h> 67 68 struct buf; 69 struct inode; 70 struct nameidata; 71 struct timeval; 72 struct uio; 73 struct vnode; 74 75 /* This structure describes the UFS specific mount structure data. */ 76 struct ufsmount { 77 struct mount *um_mountp; /* filesystem vfs structure */ 78 dev_t um_dev; /* device mounted */ 79 struct vnode *um_devvp; /* block device mounted vnode */ 80 u_long um_fstype; 81 u_int32_t um_flags; /* UFS-specific flags - see below */ 82 union { /* pointer to superblock */ 83 struct fs *fs; /* FFS */ 84 struct lfs *lfs; /* LFS */ 85 struct m_ext2fs *e2fs; /* EXT2FS */ 86 struct chfs_mount *chfs; /* CHFS */ 87 } ufsmount_u; 88 #define um_fs ufsmount_u.fs 89 #define um_lfs ufsmount_u.lfs 90 #define um_e2fs ufsmount_u.e2fs 91 #define um_e2fsb ufsmount_u.e2fs->s_es 92 #define um_chfs ufsmount_u.chfs 93 94 /* Extended attribute information. */ 95 struct ufs_extattr_per_mount um_extattr; 96 97 struct vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */ 98 kauth_cred_t um_cred[MAXQUOTAS]; /* quota file access cred */ 99 u_long um_nindir; /* indirect ptrs per block */ 100 u_long um_lognindir; /* log2 of um_nindir */ 101 u_long um_bptrtodb; /* indir ptr to disk block */ 102 u_long um_seqinc; /* inc between seq blocks */ 103 kmutex_t um_lock; /* lock on global data */ 104 union { 105 struct um_q1 { 106 time_t q1_btime[MAXQUOTAS]; /* block quota time limit */ 107 time_t q1_itime[MAXQUOTAS]; /* inode quota time limit */ 108 char q1_qflags[MAXQUOTAS]; /* quota specific flags */ 109 } um_q1; 110 struct um_q2 { 111 uint64_t q2_bsize; /* block size of quota file */ 112 uint64_t q2_bmask; /* mask for above */ 113 } um_q2; 114 } um_q; 115 #define umq1_btime um_q.um_q1.q1_btime 116 #define umq1_itime um_q.um_q1.q1_itime 117 #define umq1_qflags um_q.um_q1.q1_qflags 118 #define umq2_bsize um_q.um_q2.q2_bsize 119 #define umq2_bmask um_q.um_q2.q2_bmask 120 121 void *um_oldfscompat; /* save 4.2 rotbl */ 122 int um_maxsymlinklen; 123 int um_dirblksiz; 124 u_int64_t um_maxfilesize; 125 void *um_snapinfo; /* snapshot private data */ 126 127 const struct ufs_ops *um_ops; 128 129 void *um_discarddata; 130 }; 131 132 struct ufs_ops { 133 void (*uo_itimes)(struct inode *ip, const struct timespec *, 134 const struct timespec *, const struct timespec *); 135 int (*uo_update)(struct vnode *, const struct timespec *, 136 const struct timespec *, int); 137 int (*uo_truncate)(struct vnode *, off_t, int, kauth_cred_t); 138 int (*uo_valloc)(struct vnode *, int, kauth_cred_t, struct vnode **); 139 int (*uo_vfree)(struct vnode *, ino_t, int); 140 int (*uo_balloc)(struct vnode *, off_t, int, kauth_cred_t, int, 141 struct buf **); 142 void (*uo_unmark_vnode)(struct vnode *); 143 }; 144 145 #define UFS_OPS(vp) (VFSTOUFS((vp)->v_mount)->um_ops) 146 147 #define UFS_ITIMES(vp, acc, mod, cre) \ 148 (*UFS_OPS(vp)->uo_itimes)(VTOI(vp), (acc), (mod), (cre)) 149 #define UFS_UPDATE(vp, acc, mod, flags) \ 150 (*UFS_OPS(vp)->uo_update)((vp), (acc), (mod), (flags)) 151 #define UFS_TRUNCATE(vp, off, flags, cr) \ 152 (*UFS_OPS(vp)->uo_truncate)((vp), (off), (flags), (cr)) 153 #define UFS_VALLOC(vp, mode, cr, vpp) \ 154 (*UFS_OPS(vp)->uo_valloc)((vp), (mode), (cr), (vpp)) 155 #define UFS_VFREE(vp, ino, mode) \ 156 (*UFS_OPS(vp)->uo_vfree)((vp), (ino), (mode)) 157 #define UFS_BALLOC(vp, off, size, cr, flags, bpp) \ 158 (*UFS_OPS(vp)->uo_balloc)((vp), (off), (size), (cr), (flags), (bpp)) 159 #define UFS_UNMARK_VNODE(vp) \ 160 (*UFS_OPS(vp)->uo_unmark_vnode)((vp)) 161 162 /* UFS-specific flags */ 163 #define UFS_NEEDSWAP 0x01 /* filesystem metadata need byte-swapping */ 164 #define UFS_ISAPPLEUFS 0x02 /* filesystem is Apple UFS */ 165 #define UFS_QUOTA 0x04 /* filesystem has QUOTA (v1) */ 166 #define UFS_QUOTA2 0x08 /* filesystem has QUOTA2 */ 167 168 /* 169 * Filesystem types 170 */ 171 #define UFS1 1 172 #define UFS2 2 173 174 175 /* 176 * Flags describing the state of quotas. 177 */ 178 #define QTF_OPENING 0x01 /* Q_QUOTAON in progress */ 179 #define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */ 180 181 /* Convert mount ptr to ufsmount ptr. */ 182 #define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data)) 183 184 #ifdef APPLE_UFS 185 #define UFS_MPISAPPLEUFS(ump) ((ump)->um_flags & UFS_ISAPPLEUFS) 186 #else 187 #define UFS_MPISAPPLEUFS(ump) (0) 188 #endif 189 190 /* 191 * Macros to access file system parameters in the ufsmount structure. 192 * Used by ufs_bmap. 193 */ 194 #define MNINDIR(ump) ((ump)->um_nindir) 195 #define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb) 196 197 /* 198 * Predicate for byte-swapping support. 199 */ 200 #define FSFMT(vp) (((vp)->v_mount->mnt_iflag & IMNT_DTYPE) == 0) 201 202 #endif /* _KERNEL */ 203 204 #endif /* !_UFS_UFS_UFSMOUNT_H_ */ 205
Indexes created Thu Oct 02 14:10:14 GMT 2025