Loading...
1/* -*- mode: c; c-basic-offset: 8; -*-
2 * vim: noexpandtab sw=8 ts=8 sts=0:
3 *
4 * ocfs1_fs_compat.h
5 *
6 * OCFS1 volume header definitions. OCFS2 creates valid but unmountable
7 * OCFS1 volume headers on the first two sectors of an OCFS2 volume.
8 * This allows an OCFS1 volume to see the partition and cleanly fail to
9 * mount it.
10 *
11 * Copyright (C) 2002, 2004 Oracle. All rights reserved.
12 *
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public
15 * License, version 2, as published by the Free Software Foundation.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public
23 * License along with this program; if not, write to the
24 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
25 * Boston, MA 021110-1307, USA.
26 */
27
28#ifndef _OCFS1_FS_COMPAT_H
29#define _OCFS1_FS_COMPAT_H
30
31#define OCFS1_MAX_VOL_SIGNATURE_LEN 128
32#define OCFS1_MAX_MOUNT_POINT_LEN 128
33#define OCFS1_MAX_VOL_ID_LENGTH 16
34#define OCFS1_MAX_VOL_LABEL_LEN 64
35#define OCFS1_MAX_CLUSTER_NAME_LEN 64
36
37#define OCFS1_MAJOR_VERSION (2)
38#define OCFS1_MINOR_VERSION (0)
39#define OCFS1_VOLUME_SIGNATURE "OracleCFS"
40
41/*
42 * OCFS1 superblock. Lives at sector 0.
43 */
44struct ocfs1_vol_disk_hdr
45{
46/*00*/ __u32 minor_version;
47 __u32 major_version;
48/*08*/ __u8 signature[OCFS1_MAX_VOL_SIGNATURE_LEN];
49/*88*/ __u8 mount_point[OCFS1_MAX_MOUNT_POINT_LEN];
50/*108*/ __u64 serial_num;
51/*110*/ __u64 device_size;
52 __u64 start_off;
53/*120*/ __u64 bitmap_off;
54 __u64 publ_off;
55/*130*/ __u64 vote_off;
56 __u64 root_bitmap_off;
57/*140*/ __u64 data_start_off;
58 __u64 root_bitmap_size;
59/*150*/ __u64 root_off;
60 __u64 root_size;
61/*160*/ __u64 cluster_size;
62 __u64 num_nodes;
63/*170*/ __u64 num_clusters;
64 __u64 dir_node_size;
65/*180*/ __u64 file_node_size;
66 __u64 internal_off;
67/*190*/ __u64 node_cfg_off;
68 __u64 node_cfg_size;
69/*1A0*/ __u64 new_cfg_off;
70 __u32 prot_bits;
71 __s32 excl_mount;
72/*1B0*/
73};
74
75
76struct ocfs1_disk_lock
77{
78/*00*/ __u32 curr_master;
79 __u8 file_lock;
80 __u8 compat_pad[3]; /* Not in original definition. Used to
81 make the already existing alignment
82 explicit */
83 __u64 last_write_time;
84/*10*/ __u64 last_read_time;
85 __u32 writer_node_num;
86 __u32 reader_node_num;
87/*20*/ __u64 oin_node_map;
88 __u64 dlock_seq_num;
89/*30*/
90};
91
92/*
93 * OCFS1 volume label. Lives at sector 1.
94 */
95struct ocfs1_vol_label
96{
97/*00*/ struct ocfs1_disk_lock disk_lock;
98/*30*/ __u8 label[OCFS1_MAX_VOL_LABEL_LEN];
99/*70*/ __u16 label_len;
100/*72*/ __u8 vol_id[OCFS1_MAX_VOL_ID_LENGTH];
101/*82*/ __u16 vol_id_len;
102/*84*/ __u8 cluster_name[OCFS1_MAX_CLUSTER_NAME_LEN];
103/*A4*/ __u16 cluster_name_len;
104/*A6*/
105};
106
107
108#endif /* _OCFS1_FS_COMPAT_H */
109
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * ocfs1_fs_compat.h
4 *
5 * OCFS1 volume header definitions. OCFS2 creates valid but unmountable
6 * OCFS1 volume headers on the first two sectors of an OCFS2 volume.
7 * This allows an OCFS1 volume to see the partition and cleanly fail to
8 * mount it.
9 *
10 * Copyright (C) 2002, 2004 Oracle. All rights reserved.
11 */
12
13#ifndef _OCFS1_FS_COMPAT_H
14#define _OCFS1_FS_COMPAT_H
15
16#define OCFS1_MAX_VOL_SIGNATURE_LEN 128
17#define OCFS1_MAX_MOUNT_POINT_LEN 128
18#define OCFS1_MAX_VOL_ID_LENGTH 16
19#define OCFS1_MAX_VOL_LABEL_LEN 64
20#define OCFS1_MAX_CLUSTER_NAME_LEN 64
21
22#define OCFS1_MAJOR_VERSION (2)
23#define OCFS1_MINOR_VERSION (0)
24#define OCFS1_VOLUME_SIGNATURE "OracleCFS"
25
26/*
27 * OCFS1 superblock. Lives at sector 0.
28 */
29struct ocfs1_vol_disk_hdr
30{
31/*00*/ __u32 minor_version;
32 __u32 major_version;
33/*08*/ __u8 signature[OCFS1_MAX_VOL_SIGNATURE_LEN];
34/*88*/ __u8 mount_point[OCFS1_MAX_MOUNT_POINT_LEN];
35/*108*/ __u64 serial_num;
36/*110*/ __u64 device_size;
37 __u64 start_off;
38/*120*/ __u64 bitmap_off;
39 __u64 publ_off;
40/*130*/ __u64 vote_off;
41 __u64 root_bitmap_off;
42/*140*/ __u64 data_start_off;
43 __u64 root_bitmap_size;
44/*150*/ __u64 root_off;
45 __u64 root_size;
46/*160*/ __u64 cluster_size;
47 __u64 num_nodes;
48/*170*/ __u64 num_clusters;
49 __u64 dir_node_size;
50/*180*/ __u64 file_node_size;
51 __u64 internal_off;
52/*190*/ __u64 node_cfg_off;
53 __u64 node_cfg_size;
54/*1A0*/ __u64 new_cfg_off;
55 __u32 prot_bits;
56 __s32 excl_mount;
57/*1B0*/
58};
59
60
61struct ocfs1_disk_lock
62{
63/*00*/ __u32 curr_master;
64 __u8 file_lock;
65 __u8 compat_pad[3]; /* Not in original definition. Used to
66 make the already existing alignment
67 explicit */
68 __u64 last_write_time;
69/*10*/ __u64 last_read_time;
70 __u32 writer_node_num;
71 __u32 reader_node_num;
72/*20*/ __u64 oin_node_map;
73 __u64 dlock_seq_num;
74/*30*/
75};
76
77/*
78 * OCFS1 volume label. Lives at sector 1.
79 */
80struct ocfs1_vol_label
81{
82/*00*/ struct ocfs1_disk_lock disk_lock;
83/*30*/ __u8 label[OCFS1_MAX_VOL_LABEL_LEN];
84/*70*/ __u16 label_len;
85/*72*/ __u8 vol_id[OCFS1_MAX_VOL_ID_LENGTH];
86/*82*/ __u16 vol_id_len;
87/*84*/ __u8 cluster_name[OCFS1_MAX_CLUSTER_NAME_LEN];
88/*A4*/ __u16 cluster_name_len;
89/*A6*/
90};
91
92
93#endif /* _OCFS1_FS_COMPAT_H */
94