1/* 2 * Name : qnx4_fs.h 3 * Author : Richard Frowijn 4 * Function : qnx4 global filesystem definitions 5 * History : 23-03-1998 created 6 */ 7#ifndef _LINUX_QNX4_FS_H 8#define _LINUX_QNX4_FS_H 9 10#include <linux/types.h> 11#include <linux/qnxtypes.h> 12#include <linux/magic.h> 13 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 27#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; 47 __le32 di_xblk; 48 __le32 di_ftime; 49 __le32 di_mtime; 50 __le32 di_atime; 51 __le32 di_ctime; 52 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]; 64 __le32 dl_inode_blk; 65 __u8 dl_inode_ndx; 66 __u8 dl_spare[10]; 67 __u8 dl_status; 68}; 69 70struct qnx4_xblk { 71 __le32 xblk_next_xblk; 72 __le32 xblk_prev_xblk; 73 __u8 xblk_num_xtnts; 74 __u8 xblk_spare[3]; 75 __le32 xblk_num_blocks; 76 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 88#endif 89