freebsd-dev/sys/isofs/cd9660/cd9660_node.h
peter a79f8159a3 Import 4.4BSD-Lite2 onto the vendor branch, note that in the kernel, all
files are off the vendor branch, so this should not change anything.

A "U" marker generally means that the file was not changed in between
the 4.4Lite and Lite-2 releases, and does not need a merge.  "C" generally
means that there was a change.
[note, new file: cd9660_mount.h]
1996-03-11 19:20:10 +00:00

136 lines
5.4 KiB
C

/*-
* Copyright (c) 1994
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley
* by Pace Willisson (pace@blitz.com). The Rock Ridge Extension
* Support code is derived from software contributed to Berkeley
* by Atsushi Murai (amurai@spec.co.jp).
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*
* @(#)cd9660_node.h 8.2 (Berkeley) 1/23/94
* $Id: cd9660_node.h,v 1.6 1995/10/31 12:13:44 phk Exp $
*/
/*
* Theoretically, directories can be more than 2Gb in length,
* however, in practice this seems unlikely. So, we define
* the type doff_t as a long to keep down the cost of doing
* lookup on a 32-bit machine. If you are porting to a 64-bit
* architecture, you should make doff_t the same as off_t.
*/
#define doff_t long
typedef struct {
struct timespec iso_atime; /* time of last access */
struct timespec iso_mtime; /* time of last modification */
struct timespec iso_ctime; /* time file changed */
u_short iso_mode; /* files access mode and type */
uid_t iso_uid; /* owner user id */
gid_t iso_gid; /* owner group id */
short iso_links; /* links of file */
dev_t iso_rdev; /* Major/Minor number for special */
} ISO_RRIP_INODE;
#ifdef ISODEVMAP
/*
* FOr device# (major,minor) translation table
*/
struct iso_dnode {
struct iso_dnode *d_chain[2]; /* hash chain, MUST be first */
dev_t i_dev; /* device where dnode resides */
ino_t i_number; /* the identity of the inode */
dev_t d_dev; /* device # for translation */
};
#define d_forw d_chain[0]
#define d_back d_chain[1]
#endif
struct iso_node {
struct iso_node *i_chain[2]; /* hash chain, MUST be first */
struct vnode *i_vnode; /* vnode associated with this inode */
struct vnode *i_devvp; /* vnode for block I/O */
u_long i_flag; /* see below */
dev_t i_dev; /* device where inode resides */
ino_t i_number; /* the identity of the inode */
/* we use the actual starting block of the file */
struct iso_mnt *i_mnt; /* filesystem associated with this inode */
struct lockf *i_lockf; /* head of byte-level lock list */
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 */
long i_spare0;
long i_spare1;
long iso_extent; /* extent of file */
long i_size;
long iso_start; /* actual start of data of file (may be different */
/* from iso_extent, if file has extended attributes) */
ISO_RRIP_INODE inode;
};
#define i_forw i_chain[0]
#define i_back i_chain[1]
/* flags */
#define ILOCKED 0x0001 /* inode is locked */
#define IWANT 0x0002 /* some process waiting on lock */
#define IACC 0x0020 /* inode access time to be updated */
#define VTOI(vp) ((struct iso_node *)(vp)->v_data)
#define ITOV(ip) ((ip)->i_vnode)
#define ISO_ILOCK(ip) iso_ilock(ip)
#define ISO_IUNLOCK(ip) iso_iunlock(ip)
extern vop_t **cd9660_fifoop_p;
extern vop_t **cd9660_specop_p;
/*
* Prototypes for ISOFS vnode operations
*/
int cd9660_lookup __P((struct vop_lookup_args *));
int cd9660_inactive __P((struct vop_inactive_args *));
int cd9660_reclaim __P((struct vop_reclaim_args *));
int cd9660_bmap __P((struct vop_bmap_args *));
void cd9660_defattr __P((struct iso_directory_record *,
struct iso_node *, struct buf *, enum ISO_FTYPE));
void cd9660_deftstamp __P((struct iso_directory_record *,
struct iso_node *, struct buf *, enum ISO_FTYPE));
int cd9660_tstamp_conv7 __P((char *pi, struct timespec *pu, enum ISO_FTYPE));
int cd9660_tstamp_conv17 __P((unsigned char *pi, struct timespec *pu));
void isodirino __P((ino_t *inump, struct iso_directory_record *isodir,
struct iso_mnt *imp));
#ifdef ISODEVMAP
struct iso_dnode *iso_dmap __P((dev_t, ino_t, int));
void iso_dunmap __P((dev_t));
#endif