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