Subversion Repositories hf-risc

/*

 *  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