1/*-
2 * Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
| 1/*-
2 * Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
|
26 * $FreeBSD: head/sys/geom/label/g_label.h 142727 2005-02-27 23:07:47Z pjd $
| 26 * $FreeBSD: head/sys/geom/label/g_label.h 148978 2005-08-12 00:27:45Z pjd $
|
27 */
28
29#ifndef _G_LABEL_H_
30#define _G_LABEL_H_
31
32#include <sys/endian.h>
33
34#define G_LABEL_CLASS_NAME "LABEL"
35
36#define G_LABEL_MAGIC "GEOM::LABEL"
37/*
38 * Version history:
39 * 1 - Initial version number.
40 * 2 - Added md_provsize field to metadata.
41 */
42#define G_LABEL_VERSION 2
43#define G_LABEL_DIR "label"
44
45#ifdef _KERNEL
46extern u_int g_label_debug;
47
48#define G_LABEL_DEBUG(lvl, ...) do { \
49 if (g_label_debug >= (lvl)) { \
50 printf("GEOM_LABEL"); \
51 if (g_label_debug > 0) \
52 printf("[%u]", lvl); \
53 printf(": "); \
54 printf(__VA_ARGS__); \
55 printf("\n"); \
56 } \
57} while (0)
58
59typedef void g_label_taste_t (struct g_consumer *cp, char *label, size_t size);
60
61struct g_label_desc {
62 g_label_taste_t *ld_taste;
63 char *ld_dir;
64};
65
66/* Supported labels. */
67extern const struct g_label_desc g_label_ufs;
68extern const struct g_label_desc g_label_iso9660;
69extern const struct g_label_desc g_label_msdosfs;
| 27 */
28
29#ifndef _G_LABEL_H_
30#define _G_LABEL_H_
31
32#include <sys/endian.h>
33
34#define G_LABEL_CLASS_NAME "LABEL"
35
36#define G_LABEL_MAGIC "GEOM::LABEL"
37/*
38 * Version history:
39 * 1 - Initial version number.
40 * 2 - Added md_provsize field to metadata.
41 */
42#define G_LABEL_VERSION 2
43#define G_LABEL_DIR "label"
44
45#ifdef _KERNEL
46extern u_int g_label_debug;
47
48#define G_LABEL_DEBUG(lvl, ...) do { \
49 if (g_label_debug >= (lvl)) { \
50 printf("GEOM_LABEL"); \
51 if (g_label_debug > 0) \
52 printf("[%u]", lvl); \
53 printf(": "); \
54 printf(__VA_ARGS__); \
55 printf("\n"); \
56 } \
57} while (0)
58
59typedef void g_label_taste_t (struct g_consumer *cp, char *label, size_t size);
60
61struct g_label_desc {
62 g_label_taste_t *ld_taste;
63 char *ld_dir;
64};
65
66/* Supported labels. */
67extern const struct g_label_desc g_label_ufs;
68extern const struct g_label_desc g_label_iso9660;
69extern const struct g_label_desc g_label_msdosfs;
|
| 70extern const struct g_label_desc g_label_ext2fs;
71extern const struct g_label_desc g_label_reiserfs;
|
70#endif /* _KERNEL */
71
72struct g_label_metadata {
73 char md_magic[16]; /* Magic value. */
74 uint32_t md_version; /* Version number. */
75 char md_label[16]; /* Label. */
76 uint64_t md_provsize; /* Provider's size. */
77};
78static __inline void
79label_metadata_encode(const struct g_label_metadata *md, u_char *data)
80{
81
82 bcopy(md->md_magic, data, sizeof(md->md_magic));
83 le32enc(data + 16, md->md_version);
84 bcopy(md->md_label, data + 20, sizeof(md->md_label));
85 le64enc(data + 36, md->md_provsize);
86}
87static __inline void
88label_metadata_decode(const u_char *data, struct g_label_metadata *md)
89{
90
91 bcopy(data, md->md_magic, sizeof(md->md_magic));
92 md->md_version = le32dec(data + 16);
93 bcopy(data + 20, md->md_label, sizeof(md->md_label));
94 md->md_provsize = le64dec(data + 36);
95}
96#endif /* _G_LABEL_H_ */
| 72#endif /* _KERNEL */
73
74struct g_label_metadata {
75 char md_magic[16]; /* Magic value. */
76 uint32_t md_version; /* Version number. */
77 char md_label[16]; /* Label. */
78 uint64_t md_provsize; /* Provider's size. */
79};
80static __inline void
81label_metadata_encode(const struct g_label_metadata *md, u_char *data)
82{
83
84 bcopy(md->md_magic, data, sizeof(md->md_magic));
85 le32enc(data + 16, md->md_version);
86 bcopy(md->md_label, data + 20, sizeof(md->md_label));
87 le64enc(data + 36, md->md_provsize);
88}
89static __inline void
90label_metadata_decode(const u_char *data, struct g_label_metadata *md)
91{
92
93 bcopy(data, md->md_magic, sizeof(md->md_magic));
94 md->md_version = le32dec(data + 16);
95 bcopy(data + 20, md->md_label, sizeof(md->md_label));
96 md->md_provsize = le64dec(data + 36);
97}
98#endif /* _G_LABEL_H_ */
|