/*- * Copyright (c) 1982, 1989, 1993 * The Regents of the University of California. All rights reserved. * (c) UNIX System Laboratories, Inc. * All or some portions of this file are derived from material licensed * to the University of California by American Telephone and Telegraph * Co. or Unix System Laboratories, Inc. and are reproduced herein with * the permission of UNIX System Laboratories, Inc. * * 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. * * @(#)inode.h 8.9 (Berkeley) 5/14/95 * $FreeBSD: src/sys/ufs/ufs/inode.h,v 1.28.2.2 2001/09/29 12:52:52 iedowse Exp $ */ #ifndef _UFS_UFS_INODE_H_ #define _UFS_UFS_INODE_H_ #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES) #ifndef _SYS_LOCK_H_ #include <sys/lock.h> #endif #ifndef _SYS_LOCKF_H #include <sys/lockf.h> #endif #endif #ifndef _SYS_QUEUE_H_ #include <sys/queue.h> #endif #include "dinode.h" /* * The size of a logical block number. */ typedef long ufs_lbn_t; /* * This must agree with the definition in <ufs/ufs/dir.h>. */ #define doff_t int32_t #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES) /* * The inode is used to describe each active (or recently active) file in the * UFS filesystem. It is composed of two types of information. The first part * is the information that is needed only while the file is active (such as * the identity of the file and linkage to speed its lookup). The second part * is the permanent meta-data associated with the file which is read in * from the permanent dinode from long term storage when the file becomes * active, and is put back when the file is no longer being used. */ struct inode { struct inode *i_next;/* Hash chain */ struct vnode *i_vnode;/* Vnode associated with this inode. */ struct vnode *i_devvp;/* Vnode for block I/O. */ uint32_t i_flag; /* flags, see below */ cdev_t i_dev; /* Device associated with the inode. */ ino_t i_number; /* The identity of the inode. */ int i_effnlink; /* i_nlink when I/O completes */ struct fs *i_fs; /* Associated filesystem */ struct ufs_dquot *i_dquot[MAXQUOTAS]; /* Dquot structures. */ u_quad_t i_modrev; /* Revision level for NFS lease. */ struct lockf i_lockf;/* Head of byte-level lock list. */ /* * Side effects; used during directory lookup. */ int32_t i_count; /* Size of free slot in directory. */ doff_t i_endoff; /* End of useful stuff in directory. */ doff_t i_diroff; /* Offset in dir, where we found last entry. */ doff_t i_offset; /* Offset of free space in directory. */ ino_t i_ino; /* Inode number of found directory. */ uint32_t i_reclen; /* Size of found directory entry. */ uint32_t i_spare[3]; /* XXX actually non-spare (for ext2fs). */ struct dirhash *i_dirhash; /* Hashing for large directories */ /* * The on-disk dinode itself (128 bytes) */ struct ufs1_dinode i_din; }; #define i_atime i_din.di_atime #define i_atime_ext i_din.di_atime_ext #define i_atimensec i_din.di_atimensec #define i_blocks i_din.di_blocks #define i_ctime i_din.di_ctime #define i_ctime_ext i_din.di_ctime_ext #define i_ctimensec i_din.di_ctimensec #define i_db i_din.di_db #define i_flags i_din.di_flags #define i_gen i_din.di_gen #define i_gid i_din.di_gid #define i_ib i_din.di_ib #define i_mode i_din.di_mode #define i_mtime i_din.di_mtime #define i_mtime_ext i_din.di_mtime_ext #define i_mtimensec i_din.di_mtimensec #define i_nlink i_din.di_nlink #define i_rdev i_din.di_rdev #define i_shortlink i_din.di_shortlink #define i_size i_din.di_size #define i_uid i_din.di_uid #endif /* These flags are kept in i_flag. */ #define IN_ACCESS 0x0001 /* Access time update request. */ #define IN_CHANGE 0x0002 /* Inode change time update request. */ #define IN_UPDATE 0x0004 /* Modification time update request. */ #define IN_MODIFIED 0x0008 /* Inode has been modified. */ #define IN_RENAME 0x0010 /* Inode is being renamed. */ #define IN_SHLOCK 0x0020 /* File has shared lock. */ #define IN_EXLOCK 0x0040 /* File has exclusive lock. */ #define IN_HASHED 0x0080 /* Inode is on hash list */ #define IN_LAZYMOD 0x0100 /* Modified, but don't write yet. */ #define IN_NOCOPYWRITE 0x0200 /* Special NOCOPY write */ #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES) /* * Structure used to pass around logical block paths generated by * ufs_getlbns and used by truncate and bmap code. */ struct indir { ufs_daddr_t in_lbn; /* Logical block number. */ int in_off; /* Offset in buffer. */ }; /* Convert between inode pointers and vnode pointers. */ #define VTOI(vp) ((struct inode *)(vp)->v_data) #define ITOV(ip) ((ip)->i_vnode) /* Determine if soft dependencies are being done */ #define DOINGSOFTDEP(vp) ((vp)->v_mount->mnt_flag & MNT_SOFTDEP) #define DOINGASYNC(vp) ((vp)->v_mount->mnt_flag & MNT_ASYNC) /* This overlays the fid structure (see mount.h). */ struct ufid { uint16_t ufid_len; /* Length of structure. */ uint16_t ufid_pad; /* Force 32-bit alignment. */ ino_t ufid_ino; /* File number (ino). */ int32_t ufid_gen; /* Generation number. */ }; #endif /* _KERNEL || _KERNEL_STRUCTURES */ #endif /* !_UFS_UFS_INODE_H_ */
