1 /* 2 * Name : qnx6_fs.h 3 * Author : Kai Bankett 4 * Function : qnx6 global filesystem definitions 5 * History : 17-01-2012 created 6 */ 7 #ifndef _LINUX_QNX6_FS_H 8 #define _LINUX_QNX6_FS_H 9 10 #include <linux/types.h> 11 #include <linux/magic.h> 12 13 #define QNX6_ROOT_INO 1 14 15 /* for di_status */ 16 #define QNX6_FILE_DIRECTORY 0x01 17 #define QNX6_FILE_DELETED 0x02 18 #define QNX6_FILE_NORMAL 0x03 19 20 #define QNX6_SUPERBLOCK_SIZE 0x200 /* superblock always is 512 bytes */ 21 #define QNX6_SUPERBLOCK_AREA 0x1000 /* area reserved for superblock */ 22 #define QNX6_BOOTBLOCK_SIZE 0x2000 /* heading bootblock area */ 23 #define QNX6_DIR_ENTRY_SIZE 0x20 /* dir entry size of 32 bytes */ 24 #define QNX6_INODE_SIZE 0x80 /* each inode is 128 bytes */ 25 #define QNX6_INODE_SIZE_BITS 7 /* inode entry size shift */ 26 27 #define QNX6_NO_DIRECT_POINTERS 16 /* 16 blockptrs in sbl/inode */ 28 #define QNX6_PTR_MAX_LEVELS 5 /* maximum indirect levels */ 29 30 /* for filenames */ 31 #define QNX6_SHORT_NAME_MAX 27 32 #define QNX6_LONG_NAME_MAX 510 33 34 /* list of mount options */ 35 #define QNX6_MOUNT_MMI_FS 0x010000 /* mount as Audi MMI 3G fs */ 36 37 /* 38 * This is the original qnx6 inode layout on disk. 39 * Each inode is 128 byte long. 40 */ 41 struct qnx6_inode_entry { 42 __fs64 di_size; 43 __fs32 di_uid; 44 __fs32 di_gid; 45 __fs32 di_ftime; 46 __fs32 di_mtime; 47 __fs32 di_atime; 48 __fs32 di_ctime; 49 __fs16 di_mode; 50 __fs16 di_ext_mode; 51 __fs32 di_block_ptr[QNX6_NO_DIRECT_POINTERS]; 52 __u8 di_filelevels; 53 __u8 di_status; 54 __u8 di_unknown2[2]; 55 __fs32 di_zero2[6]; 56 }; 57 58 /* 59 * Each directory entry is maximum 32 bytes long. 60 * If more characters or special characters required it is stored 61 * in the longfilenames structure. 62 */ 63 struct qnx6_dir_entry { 64 __fs32 de_inode; 65 __u8 de_size; 66 char de_fname[QNX6_SHORT_NAME_MAX]; 67 }; 68 69 /* 70 * Longfilename direntries have a different structure 71 */ 72 struct qnx6_long_dir_entry { 73 __fs32 de_inode; 74 __u8 de_size; 75 __u8 de_unknown[3]; 76 __fs32 de_long_inode; 77 __fs32 de_checksum; 78 }; 79 80 struct qnx6_long_filename { 81 __fs16 lf_size; 82 __u8 lf_fname[QNX6_LONG_NAME_MAX]; 83 }; 84 85 struct qnx6_root_node { 86 __fs64 size; 87 __fs32 ptr[QNX6_NO_DIRECT_POINTERS]; 88 __u8 levels; 89 __u8 mode; 90 __u8 spare[6]; 91 }; 92 93 struct qnx6_super_block { 94 __fs32 sb_magic; 95 __fs32 sb_checksum; 96 __fs64 sb_serial; 97 __fs32 sb_ctime; /* time the fs was created */ 98 __fs32 sb_atime; /* last access time */ 99 __fs32 sb_flags; 100 __fs16 sb_version1; /* filesystem version information */ 101 __fs16 sb_version2; /* filesystem version information */ 102 __u8 sb_volumeid[16]; 103 __fs32 sb_blocksize; 104 __fs32 sb_num_inodes; 105 __fs32 sb_free_inodes; 106 __fs32 sb_num_blocks; 107 __fs32 sb_free_blocks; 108 __fs32 sb_allocgroup; 109 struct qnx6_root_node Inode; 110 struct qnx6_root_node Bitmap; 111 struct qnx6_root_node Longfile; 112 struct qnx6_root_node Unknown; 113 }; 114 115 /* Audi MMI 3G superblock layout is different to plain qnx6 */ 116 struct qnx6_mmi_super_block { 117 __fs32 sb_magic; 118 __fs32 sb_checksum; 119 __fs64 sb_serial; 120 __u8 sb_spare0[12]; 121 __u8 sb_id[12]; 122 __fs32 sb_blocksize; 123 __fs32 sb_num_inodes; 124 __fs32 sb_free_inodes; 125 __fs32 sb_num_blocks; 126 __fs32 sb_free_blocks; 127 __u8 sb_spare1[4]; 128 struct qnx6_root_node Inode; 129 struct qnx6_root_node Bitmap; 130 struct qnx6_root_node Longfile; 131 struct qnx6_root_node Unknown; 132 }; 133 134 #endif 135