xref: /openbsd/sys/isofs/cd9660/cd9660_node.h (revision 0f9e9ec2)
1 /*	$OpenBSD: cd9660_node.h,v 1.23 2024/05/13 01:15:53 jsg Exp $	*/
2 /*	$NetBSD: cd9660_node.h,v 1.15 1997/04/11 21:52:01 kleink Exp $	*/
3 
4 /*-
5  * Copyright (c) 1994
6  *	The Regents of the University of California.  All rights reserved.
7  *
8  * This code is derived from software contributed to Berkeley
9  * by Pace Willisson (pace@blitz.com).  The Rock Ridge Extension
10  * Support code is derived from software contributed to Berkeley
11  * by Atsushi Murai (amurai@spec.co.jp).
12  *
13  * Redistribution and use in source and binary forms, with or without
14  * modification, are permitted provided that the following conditions
15  * are met:
16  * 1. Redistributions of source code must retain the above copyright
17  *    notice, this list of conditions and the following disclaimer.
18  * 2. Redistributions in binary form must reproduce the above copyright
19  *    notice, this list of conditions and the following disclaimer in the
20  *    documentation and/or other materials provided with the distribution.
21  * 3. Neither the name of the University nor the names of its contributors
22  *    may be used to endorse or promote products derived from this software
23  *    without specific prior written permission.
24  *
25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35  * SUCH DAMAGE.
36  *
37  *	@(#)cd9660_node.h	8.4 (Berkeley) 12/5/94
38  */
39 
40 #include <sys/buf.h>
41 
42 #define doff_t	u_quad_t
43 
44 typedef	struct	{
45 	struct timespec	iso_atime;	/* time of last access */
46 	struct timespec	iso_mtime;	/* time of last modification */
47 	struct timespec	iso_ctime;	/* time file changed */
48 	u_short		iso_mode;	/* files access mode and type */
49 	uid_t		iso_uid;	/* owner user id */
50 	gid_t		iso_gid;	/* owner group id */
51 	short		iso_links;	/* links of file */
52 	dev_t		iso_rdev;	/* Major/Minor number for special */
53 } ISO_RRIP_INODE;
54 
55 struct iso_node {
56 	struct	iso_node *i_next, **i_prev;	/* hash chain */
57 	struct	vnode *i_vnode;	/* vnode associated with this inode */
58 	struct	vnode *i_devvp;	/* vnode for block I/O */
59 	u_int	i_flag;		/* see below */
60 	dev_t	i_dev;		/* device where inode resides */
61 	cdino_t	i_number;	/* the identity of the inode */
62 				/* we use the actual starting block of the file */
63 	struct	iso_mnt *i_mnt;	/* filesystem associated with this inode */
64 	doff_t	i_endoff;	/* end of useful stuff in directory */
65 	doff_t	i_diroff;	/* offset in dir, where we found last entry */
66 	doff_t	i_offset;	/* offset of free space in directory */
67 	cdino_t	i_ino;		/* inode number of found directory */
68 	struct	rrwlock i_lock;	/* node lock */
69 
70 	doff_t	iso_extent;	/* extent of file */
71 	doff_t	i_size;
72 	/*
73 	 * Actual start of data file (may be different from iso_extent, if the
74 	 * file has extended attributes).
75 	 */
76 	doff_t	iso_start;
77 
78 	ISO_RRIP_INODE  inode;
79 	struct cluster_info i_ci;
80 };
81 
82 #define	i_forw		i_chain[0]
83 #define	i_back		i_chain[1]
84 
85 /* flags */
86 #define	IN_ACCESS	0x0020		/* inode access time to be updated */
87 
88 #define VTOI(vp) ((struct iso_node *)(vp)->v_data)
89 #define ITOV(ip) ((ip)->i_vnode)
90 
91 /*
92  * Prototypes for ISOFS vnode operations
93  */
94 int	cd9660_lookup(void *);
95 int	cd9660_open(void *);
96 int	cd9660_close(void *);
97 int	cd9660_access(void *);
98 int	cd9660_getattr(void *);
99 int	cd9660_setattr(void *);
100 int	cd9660_read(void *);
101 int	cd9660_ioctl(void *);
102 int	cd9660_mmap(void *);
103 int	cd9660_seek(void *);
104 int	cd9660_readdir(void *);
105 int	cd9660_readlink(void *);
106 int	cd9660_inactive(void *);
107 int	cd9660_reclaim(void *);
108 int	cd9660_link(void *);
109 int	cd9660_symlink(void *);
110 int	cd9660_bmap(void *);
111 int	cd9660_lock(void *);
112 int	cd9660_unlock(void *);
113 int	cd9660_strategy(void *);
114 int	cd9660_print(void *);
115 int	cd9660_islocked(void *);
116 int	cd9660_pathconf(void *);
117 
118 int	cd9660_bufatoff(struct iso_node *, off_t, char **, struct buf **);
119 
120 void	cd9660_defattr(struct iso_directory_record *, struct iso_node *,
121     struct buf *);
122 void	cd9660_deftstamp(struct iso_directory_record *, struct iso_node *,
123     struct buf *);
124 struct	vnode *cd9660_ihashget(dev_t, cdino_t);
125 int	cd9660_ihashins(struct iso_node *);
126 void	cd9660_ihashrem(struct iso_node *);
127 int	cd9660_tstamp_conv7(u_char *, struct timespec *);
128 int	cd9660_tstamp_conv17(u_char *, struct timespec *);
129 int	cd9660_vget_internal(struct mount *, cdino_t, struct vnode **, int,
130     struct iso_directory_record *);
131