| Current File : //usr/include/linux/qnx4_fs.h |
/*
* Name : qnx4_fs.h
* Author : Richard Frowijn
* Function : qnx4 global filesystem definitions
* History : 23-03-1998 created
*/
#ifndef _LINUX_QNX4_FS_H
#define _LINUX_QNX4_FS_H
#include <linux/types.h>
#include <linux/qnxtypes.h>
#include <linux/magic.h>
#define QNX4_ROOT_INO 1
#define QNX4_MAX_XTNTS_PER_XBLK 60
/* for di_status */
#define QNX4_FILE_USED 0x01
#define QNX4_FILE_MODIFIED 0x02
#define QNX4_FILE_BUSY 0x04
#define QNX4_FILE_LINK 0x08
#define QNX4_FILE_INODE 0x10
#define QNX4_FILE_FSYSCLEAN 0x20
#define QNX4_I_MAP_SLOTS 8
#define QNX4_Z_MAP_SLOTS 64
#define QNX4_VALID_FS 0x0001 /* Clean fs. */
#define QNX4_ERROR_FS 0x0002 /* fs has errors. */
#define QNX4_BLOCK_SIZE 0x200 /* blocksize of 512 bytes */
#define QNX4_BLOCK_SIZE_BITS 9 /* blocksize shift */
#define QNX4_DIR_ENTRY_SIZE 0x040 /* dir entry size of 64 bytes */
#define QNX4_DIR_ENTRY_SIZE_BITS 6 /* dir entry size shift */
#define QNX4_XBLK_ENTRY_SIZE 0x200 /* xblk entry size */
#define QNX4_INODES_PER_BLOCK 0x08 /* 512 / 64 */
/* for filenames */
#define QNX4_SHORT_NAME_MAX 16
#define QNX4_NAME_MAX 48
/*
* This is the original qnx4 inode layout on disk.
*/
struct qnx4_inode_entry {
char di_fname[QNX4_SHORT_NAME_MAX];
qnx4_off_t di_size;
qnx4_xtnt_t di_first_xtnt;
__le32 di_xblk;
__le32 di_ftime;
__le32 di_mtime;
__le32 di_atime;
__le32 di_ctime;
qnx4_nxtnt_t di_num_xtnts;
qnx4_mode_t di_mode;
qnx4_muid_t di_uid;
qnx4_mgid_t di_gid;
qnx4_nlink_t di_nlink;
__u8 di_zero[4];
qnx4_ftype_t di_type;
__u8 di_status;
};
struct qnx4_link_info {
char dl_fname[QNX4_NAME_MAX];
__le32 dl_inode_blk;
__u8 dl_inode_ndx;
__u8 dl_spare[10];
__u8 dl_status;
};
struct qnx4_xblk {
__le32 xblk_next_xblk;
__le32 xblk_prev_xblk;
__u8 xblk_num_xtnts;
__u8 xblk_spare[3];
__le32 xblk_num_blocks;
qnx4_xtnt_t xblk_xtnts[QNX4_MAX_XTNTS_PER_XBLK];
char xblk_signature[8];
qnx4_xtnt_t xblk_first_xtnt;
};
struct qnx4_super_block {
struct qnx4_inode_entry RootDir;
struct qnx4_inode_entry Inode;
struct qnx4_inode_entry Boot;
struct qnx4_inode_entry AltBoot;
};
#endif