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 */ 43 struct 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 62 struct 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 70 struct 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 81 struct 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
