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      1 /*	$NetBSD: filecore_node.h,v 1.8 2022/03/27 17:10:55 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1994 The Regents of the University of California.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  *
     31  *	filecore_node.h		1.1	1998/6/26
     32  */
     33 
     34 /*-
     35  * Copyright (c) 1998 Andrew McMurry
     36  *
     37  * Redistribution and use in source and binary forms, with or without
     38  * modification, are permitted provided that the following conditions
     39  * are met:
     40  * 1. Redistributions of source code must retain the above copyright
     41  *    notice, this list of conditions and the following disclaimer.
     42  * 2. Redistributions in binary form must reproduce the above copyright
     43  *    notice, this list of conditions and the following disclaimer in the
     44  *    documentation and/or other materials provided with the distribution.
     45  * 3. All advertising materials mentioning features or use of this software
     46  *    must display the following acknowledgement:
     47  *	This product includes software developed by the University of
     48  *	California, Berkeley and its contributors.
     49  * 4. Neither the name of the University nor the names of its contributors
     50  *    may be used to endorse or promote products derived from this software
     51  *    without specific prior written permission.
     52  *
     53  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     54  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     55  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     56  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     57  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     58  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     59  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     60  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     61  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     62  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     63  * SUCH DAMAGE.
     64  *
     65  *	filecore_node.h		1.1	1998/6/26
     66  */
     67 
     68 #if !defined(_KERNEL)
     69 #error not supposed to be exposed to userland.
     70 #endif
     71 
     72 #include <miscfs/genfs/genfs_node.h>
     73 
     74 /*
     75  * In a future format, directories may be more than 2Gb in length,
     76  * however, in practice this seems unlikely. So, we define
     77  * the type doff_t as a long to keep down the cost of doing
     78  * lookup on a 32-bit machine. If you are porting to a 64-bit
     79  * architecture, you should make doff_t the same as off_t.
     80  */
     81 #define doff_t	long
     82 
     83 struct filecore_node {
     84 	struct	genfs_node i_gnode;
     85 	LIST_ENTRY(filecore_node) i_hash;
     86 	struct	vnode *i_vnode;	/* vnode associated with this inode */
     87 	struct	vnode *i_devvp;	/* vnode for block I/O */
     88 	u_long	i_flag;		/* see below */
     89 	dev_t	i_dev;		/* device where inode resides */
     90 	ino_t	i_number;	/* the identity of the inode */
     91 	daddr_t	i_block;	/* the disc address of the file */
     92 	ino_t	i_parent;	/* the ino of the file's parent */
     93 
     94 	struct	filecore_mnt *i_mnt;	/* filesystem associated with this inode */
     95 	struct	lockf *i_lockf;	/* head of byte-level lock list */
     96         int	i_diroff;	/* offset in dir, where we found last entry */
     97 
     98 	struct	filecore_direntry i_dirent; /* directory entry */
     99 };
    100 
    101 #define i_size		i_dirent.len
    102 
    103 /* flags */
    104 #define	IN_ACCESS	0x0020		/* inode access time to be updated */
    105 
    106 #define VTOI(vp) ((struct filecore_node *)(vp)->v_data)
    107 #define ITOV(ip) ((ip)->i_vnode)
    108 
    109 #define filecore_staleinode(ip) ((ip)->i_dirent.name[0]==0)
    110 
    111 /*
    112  * Prototypes for Filecore vnode operations
    113  */
    114 int	filecore_lookup(void *);
    115 int	filecore_access(void *);
    116 int	filecore_getattr(void *);
    117 int	filecore_read(void *);
    118 int	filecore_readdir(void *);
    119 int	filecore_readlink(void *);
    120 int	filecore_inactive(void *);
    121 int	filecore_reclaim(void *);
    122 int	filecore_bmap(void *);
    123 int	filecore_strategy(void *);
    124 int	filecore_print(void *);
    125 int	filecore_pathconf(void *);
    126 int	filecore_blkatoff(void *);
    127 
    128 mode_t	filecore_mode(struct filecore_node *);
    129 struct timespec	filecore_time(struct filecore_node *);
    130 ino_t	filecore_getparent(struct filecore_node *);
    131 int	filecore_fn2unix(char *, char *, u_int16_t *);
    132 int	filecore_fncmp(const char *, const char *, u_short);
    133 int	filecore_dbread(struct filecore_node *, struct buf **);
    134