1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1994
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley
8 * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension
9 * Support code is derived from software contributed to Berkeley
10 * by Atsushi Murai (amurai@spec.co.jp).
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37/*
38 * Theoretically, directories can be more than 2Gb in length,
39 * however, in practice this seems unlikely. So, we define
40 * the type doff_t as a long to keep down the cost of doing
41 * lookup on a 32-bit machine. If you are porting to a 64-bit
42 * architecture, you should make doff_t the same as off_t.
43 */
44#define doff_t long
45
46typedef struct {
47 struct timespec iso_atime; /* time of last access */
48 struct timespec iso_mtime; /* time of last modification */
49 struct timespec iso_ctime; /* time file changed */
50 u_short iso_mode; /* files access mode and type */
51 uid_t iso_uid; /* owner user id */
52 gid_t iso_gid; /* owner group id */
53 short iso_links; /* links of file */
54 dev_t iso_rdev; /* Major/Minor number for special */
55} ISO_RRIP_INODE;
56
57struct iso_node {
58 struct vnode *i_vnode; /* vnode associated with this inode */
59 ino_t i_number; /* the identity of the inode */
60 /* we use the actual starting block of the file */
61 struct iso_mnt *i_mnt; /* filesystem associated with this inode */
62 struct lockf *i_lockf; /* head of byte-level lock list */
63 doff_t i_endoff; /* end of useful stuff in directory */
64 doff_t i_diroff; /* offset in dir, where we found last entry */
65
66 long iso_extent; /* extent of file */
67 unsigned long i_size;
68 long iso_start; /* actual start of data of file (may be different */
69 /* from iso_extent, if file has extended attributes) */
70 ISO_RRIP_INODE inode;
71};
72
73#define i_forw i_chain[0]
74#define i_back i_chain[1]
75
76#define VTOI(vp) ((struct iso_node *)(vp)->v_data)
77#define ITOV(ip) ((ip)->i_vnode)
78
79#ifdef _KERNEL
80
81#ifdef MALLOC_DECLARE
82MALLOC_DECLARE(M_ISOFSMNT);
83MALLOC_DECLARE(M_ISOFSNODE);
84#endif
85
86struct buf;
87struct vop_bmap_args;
88struct vop_cachedlookup_args;
89struct vop_inactive_args;
90struct vop_reclaim_args;
91
92/*
93 * Prototypes for ISOFS vnode operations
94 */
95int cd9660_lookup(struct vop_cachedlookup_args *);
96int cd9660_inactive(struct vop_inactive_args *);
97int cd9660_reclaim(struct vop_reclaim_args *);
98int cd9660_bmap(struct vop_bmap_args *);
99int cd9660_blkatoff(struct vnode *vp, off_t offset, char **res, struct buf **bpp);
100
101void cd9660_defattr(struct iso_directory_record *,
102 struct iso_node *, struct buf *, enum ISO_FTYPE);
103void cd9660_deftstamp(struct iso_directory_record *,
104 struct iso_node *, struct buf *, enum ISO_FTYPE);
105int cd9660_tstamp_conv7(u_char *, struct timespec *, enum ISO_FTYPE);
106int cd9660_tstamp_conv17(u_char *, struct timespec *);
107
108#endif /* _KERNEL */