1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
4 * Author : Richard Frowijn
5 * Function : qnx4 global filesystem definitions
6 * History : 23-03-1998 created
8 #ifndef _LINUX_QNX4_FS_H
9 #define _LINUX_QNX4_FS_H
11 #include <linux/types.h>
12 #include <linux/qnxtypes.h>
13 #include <linux/magic.h>
15 #define QNX4_ROOT_INO 1
17 #define QNX4_MAX_XTNTS_PER_XBLK 60
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
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 */
38 #define QNX4_SHORT_NAME_MAX 16
39 #define QNX4_NAME_MAX 48
42 * This is the original qnx4 inode layout on disk.
44 struct qnx4_inode_entry {
45 char di_fname[QNX4_SHORT_NAME_MAX];
47 qnx4_xtnt_t di_first_xtnt;
53 qnx4_nxtnt_t di_num_xtnts;
57 qnx4_nlink_t di_nlink;
63 struct qnx4_link_info {
64 char dl_fname[QNX4_NAME_MAX];
72 __le32 xblk_next_xblk;
73 __le32 xblk_prev_xblk;
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;
82 struct 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;