1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2/*
3 * Name : qnx4_fs.h
4 * Author : Richard Frowijn
5 * Function : qnx4 global filesystem definitions
6 * History : 23-03-1998 created
7 */
8#ifndef _LINUX_QNX4_FS_H
9#define _LINUX_QNX4_FS_H
10
11#include <linux/types.h>
12#include <linux/qnxtypes.h>
13#include <linux/magic.h>
14
15#define QNX4_ROOT_INO 1
16
17#define QNX4_MAX_XTNTS_PER_XBLK 60
18/* for di_status */
19#define QNX4_FILE_USED 0x01
20#define QNX4_FILE_MODIFIED 0x02
21#define QNX4_FILE_BUSY 0x04
22#define QNX4_FILE_LINK 0x08
23#define QNX4_FILE_INODE 0x10
24#define QNX4_FILE_FSYSCLEAN 0x20
25
26#define QNX4_I_MAP_SLOTS 8
27#define QNX4_Z_MAP_SLOTS 64
28#define QNX4_VALID_FS 0x0001 /* Clean fs. */
29#define QNX4_ERROR_FS 0x0002 /* fs has errors. */
30#define QNX4_BLOCK_SIZE 0x200 /* blocksize of 512 bytes */
31#define QNX4_BLOCK_SIZE_BITS 9 /* blocksize shift */
32#define QNX4_DIR_ENTRY_SIZE 0x040 /* dir entry size of 64 bytes */
33#define QNX4_DIR_ENTRY_SIZE_BITS 6 /* dir entry size shift */
34#define QNX4_XBLK_ENTRY_SIZE 0x200 /* xblk entry size */
35#define QNX4_INODES_PER_BLOCK 0x08 /* 512 / 64 */
36
37/* for filenames */
38#define QNX4_SHORT_NAME_MAX 16
39#define QNX4_NAME_MAX 48
40
41/*
42 * This is the original qnx4 inode layout on disk.
43 */
44struct qnx4_inode_entry {
45 char di_fname[QNX4_SHORT_NAME_MAX];
46 qnx4_off_t di_size;
47 qnx4_xtnt_t di_first_xtnt;
48 __le32 di_xblk;
49 __le32 di_ftime;
50 __le32 di_mtime;
51 __le32 di_atime;
52 __le32 di_ctime;
53 qnx4_nxtnt_t di_num_xtnts;
54 qnx4_mode_t di_mode;
55 qnx4_muid_t di_uid;
56 qnx4_mgid_t di_gid;
57 qnx4_nlink_t di_nlink;
58 __u8 di_zero[4];
59 qnx4_ftype_t di_type;
60 __u8 di_status;
61};
62
63struct qnx4_link_info {
64 char dl_fname[QNX4_NAME_MAX];
65 __le32 dl_inode_blk;
66 __u8 dl_inode_ndx;
67 __u8 dl_spare[10];
68 __u8 dl_status;
69};
70
71struct qnx4_xblk {
72 __le32 xblk_next_xblk;
73 __le32 xblk_prev_xblk;
74 __u8 xblk_num_xtnts;
75 __u8 xblk_spare[3];
76 __le32 xblk_num_blocks;
77 qnx4_xtnt_t xblk_xtnts[QNX4_MAX_XTNTS_PER_XBLK];
78 char xblk_signature[8];
79 qnx4_xtnt_t xblk_first_xtnt;
80};
81
82struct qnx4_super_block {
83 struct qnx4_inode_entry RootDir;
84 struct qnx4_inode_entry Inode;
85 struct qnx4_inode_entry Boot;
86 struct qnx4_inode_entry AltBoot;
87};
88
89#endif