1 /* $NetBSD: ulfsmount.h,v 1.13 2015/05/31 15:48:03 hannken 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_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 51 struct buf; 52 struct inode; 53 struct nameidata; 54 struct timeval; 55 struct uio; 56 struct vnode; 57 58 /* This structure describes the ULFS specific mount structure data. */ 59 struct ulfsmount { 60 /* Abstract vfs-level filesystem structure. */ 61 struct mount *um_mountp; 62 63 /* The block device we're mounted on. */ 64 dev_t um_dev; 65 struct vnode *um_devvp; 66 67 /* type of fs; currently always ULFS1, theoretically also ULFS2 */ 68 u_long um_fstype; 69 70 /* pointer to the filesystem-specific filesystem structure */ 71 struct lfs *um_lfs; 72 73 /* Extended attribute information. */ 74 struct ulfs_extattr_per_mount um_extattr; 75 76 /* Cleaner lwp, set on first bmapv syscall. */ 77 struct lwp *um_cleaner_thread; 78 79 /* Hint from cleaner, only valid if curlwp == um_cleaner_thread. */ 80 BLOCK_INFO *um_cleaner_hint; 81 /* Quota-related material. */ 82 struct vnode *um_quotas[ULFS_MAXQUOTAS]; /* quota files */ 83 kauth_cred_t um_cred[ULFS_MAXQUOTAS]; /* quota file access cred */ 84 union { 85 struct um_q1 { 86 time_t q1_btime[ULFS_MAXQUOTAS]; /* block quota time limit */ 87 time_t q1_itime[ULFS_MAXQUOTAS]; /* inode quota time limit */ 88 char q1_qflags[ULFS_MAXQUOTAS]; /* quota flags */ 89 } um_q1; 90 struct um_q2 { 91 uint64_t q2_bsize; /* block size of quota file */ 92 uint64_t q2_bmask; /* mask for above */ 93 } um_q2; 94 } um_q; 95 #define umq1_btime um_q.um_q1.q1_btime 96 #define umq1_itime um_q.um_q1.q1_itime 97 #define umq1_qflags um_q.um_q1.q1_qflags 98 #define umq2_bsize um_q.um_q2.q2_bsize 99 #define umq2_bmask um_q.um_q2.q2_bmask 100 }; 101 102 /* ULFS-specific flags for um_flags */ 103 #define ULFS_NEEDSWAP 0x01 /* filesystem metadata need byte-swapping */ 104 /* unused 0x02 */ 105 #define ULFS_QUOTA 0x04 /* filesystem has QUOTA (v1) */ 106 #define ULFS_QUOTA2 0x08 /* filesystem has QUOTA2 */ 107 108 /* 109 * Filesystem types 110 */ 111 #define ULFS1 1 112 #define ULFS2 2 113 114 115 /* 116 * Flags describing the state of quotas. 117 */ 118 #define QTF_OPENING 0x01 /* Q_QUOTAON in progress */ 119 #define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */ 120 121 /* Convert mount ptr to ulfsmount ptr. */ 122 #define VFSTOULFS(mp) ((struct ulfsmount *)((mp)->mnt_data)) 123 124 /* 125 * Macros to access file system parameters (no longer) in the 126 * ulfsmount structure. 127 * Used by ulfs_bmap. 128 */ 129 #define MNINDIR(lfs) ((lfs)->um_nindir) 130 #define blkptrtodb(lfs, b) ((b) << (lfs)->um_bptrtodb) 131 132 /* 133 * Predicate for byte-swapping support. 134 */ 135 #define FSFMT(vp) (((vp)->v_mount->mnt_iflag & IMNT_DTYPE) == 0) 136 137 #endif /* _KERNEL */ 138 139 #endif /* !_UFS_LFS_ULFSMOUNT_H_ */ 140