NetBSD/sys/fs/efs/efs_inode.h

74 lines
2.8 KiB
C

/* $NetBSD: efs_inode.h,v 1.1 2007/06/29 23:30:29 rumble Exp $ */
/*
* Copyright (c) 2006 Stephen M. Rumble <rumble@ephemeral.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _FS_EFS_EFS_INODE_H_
#define _FS_EFS_EFS_INODE_H_
#include <fs/efs/efs_subr.h>
/*
* The efs_inode structure represents an in-core inode. It contains meta-data
* corresponding directly to the efs_dinode structure in host byte order and
* with native NetBSD flags and fields, a copy of the on-disk dinode structure,
* as well as other bookkeeping information.
*/
struct efs_inode {
struct genfs_node ei_gnode;
struct lockf *ei_lockf; /* advisory lock */
ino_t ei_number; /* inode number */
dev_t ei_dev; /* associated device */
struct vnode *ei_vp; /* associated vnode */
LIST_ENTRY(efs_inode) ei_hash; /* inode hash chain */
/*
* Host-ordered on-disk fields with native NetBSD types and flags.
*/
uint16_t ei_mode; /* file type and permissions */
int16_t ei_nlink; /* link count (minimum 2) */
uid_t ei_uid; /* user ID */
gid_t ei_gid; /* group ID */
int32_t ei_size; /* file size (in bytes) */
time_t ei_atime; /* file access time */
time_t ei_mtime; /* file modification time */
time_t ei_ctime; /* inode modification time */
int32_t ei_gen; /* inode generation number */
int16_t ei_numextents; /* number of extents in file */
uint8_t ei_version; /* inode version */
/*
* Copy of the on-disk inode structure, in EFS native format and
* endianness.
*/
struct efs_dinode ei_di;
};
#define EFS_VTOI(vp) ((struct efs_inode *)(vp)->v_data)
#define EFS_ITOV(eip) ((struct vnode *)(eip)->ei_vp)
/*
* File handle. The first two fields must match struct fid (see sys/fstypes.h).
*/
struct efs_fid {
unsigned short ef_len; /* length of data in bytes */
unsigned short ef_pad; /* compat: historic align */
int32_t ef_ino; /* inode number */
int32_t ef_gen; /* inode generation number */
};
#endif /* !_FS_EFS_EFS_INODE_H_ */