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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Name : qnx4_fs.h
3 * Author : Richard Frowijn
4 * Function : qnx4 global filesystem definitions
Linus Torvalds1da177e2005-04-16 15:20:36 -07005 * History : 23-03-1998 created
6 */
7#ifndef _LINUX_QNX4_FS_H
8#define _LINUX_QNX4_FS_H
9
Anders Larsen8d1a0a12009-01-01 17:17:35 +010010#include <linux/types.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070011#include <linux/qnxtypes.h>
Jeff Garzike18fa702006-09-24 11:13:19 -040012#include <linux/magic.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070013
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
Linus Torvalds1da177e2005-04-16 15:20:36 -070027#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;
Alexey Dobriyan75043cb2005-06-24 20:52:52 +000047 __le32 di_xblk;
48 __le32 di_ftime;
49 __le32 di_mtime;
50 __le32 di_atime;
51 __le32 di_ctime;
Linus Torvalds1da177e2005-04-16 15:20:36 -070052 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];
Alexey Dobriyan75043cb2005-06-24 20:52:52 +000064 __le32 dl_inode_blk;
Linus Torvalds1da177e2005-04-16 15:20:36 -070065 __u8 dl_inode_ndx;
66 __u8 dl_spare[10];
67 __u8 dl_status;
68};
69
70struct qnx4_xblk {
Alexey Dobriyan75043cb2005-06-24 20:52:52 +000071 __le32 xblk_next_xblk;
72 __le32 xblk_prev_xblk;
Linus Torvalds1da177e2005-04-16 15:20:36 -070073 __u8 xblk_num_xtnts;
74 __u8 xblk_spare[3];
Alexey Dobriyan75043cb2005-06-24 20:52:52 +000075 __le32 xblk_num_blocks;
Linus Torvalds1da177e2005-04-16 15:20:36 -070076 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
Linus Torvalds1da177e2005-04-16 15:20:36 -070088#endif