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