1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Name : qnx6_fs.h 4 * Author : Kai Bankett 5 * Function : qnx6 global filesystem definitions 6 * History : 17-01-2012 created 7 */ 8 #ifndef _LINUX_QNX6_FS_H 9 #define _LINUX_QNX6_FS_H 10 11 #include <linux/types.h> 12 #include <linux/magic.h> 13 14 #define QNX6_ROOT_INO 1 15 16 /* for di_status */ 17 #define QNX6_FILE_DIRECTORY 0x01 18 #define QNX6_FILE_DELETED 0x02 19 #define QNX6_FILE_NORMAL 0x03 20 21 #define QNX6_SUPERBLOCK_SIZE 0x200 /* superblock always is 512 bytes */ 22 #define QNX6_SUPERBLOCK_AREA 0x1000 /* area reserved for superblock */ 23 #define QNX6_BOOTBLOCK_SIZE 0x2000 /* heading bootblock area */ 24 #define QNX6_DIR_ENTRY_SIZE 0x20 /* dir entry size of 32 bytes */ 25 #define QNX6_INODE_SIZE 0x80 /* each inode is 128 bytes */ 26 #define QNX6_INODE_SIZE_BITS 7 /* inode entry size shift */ 27 28 #define QNX6_NO_DIRECT_POINTERS 16 /* 16 blockptrs in sbl/inode */ 29 #define QNX6_PTR_MAX_LEVELS 5 /* maximum indirect levels */ 30 31 /* for filenames */ 32 #define QNX6_SHORT_NAME_MAX 27 33 #define QNX6_LONG_NAME_MAX 510 34 35 /* list of mount options */ 36 #define QNX6_MOUNT_MMI_FS 0x010000 /* mount as Audi MMI 3G fs */ 37 38 /* 39 * This is the original qnx6 inode layout on disk. 40 * Each inode is 128 byte long. 41 */ 42 struct qnx6_inode_entry { 43 __fs64 di_size; 44 __fs32 di_uid; 45 __fs32 di_gid; 46 __fs32 di_ftime; 47 __fs32 di_mtime; 48 __fs32 di_atime; 49 __fs32 di_ctime; 50 __fs16 di_mode; 51 __fs16 di_ext_mode; 52 __fs32 di_block_ptr[QNX6_NO_DIRECT_POINTERS]; 53 __u8 di_filelevels; 54 __u8 di_status; 55 __u8 di_unknown2[2]; 56 __fs32 di_zero2[6]; 57 }; 58 59 /* 60 * Each directory entry is maximum 32 bytes long. 61 * If more characters or special characters required it is stored 62 * in the longfilenames structure. 63 */ 64 struct qnx6_dir_entry { 65 __fs32 de_inode; 66 __u8 de_size; 67 char de_fname[QNX6_SHORT_NAME_MAX]; 68 }; 69 70 /* 71 * Longfilename direntries have a different structure 72 */ 73 struct qnx6_long_dir_entry { 74 __fs32 de_inode; 75 __u8 de_size; 76 __u8 de_unknown[3]; 77 __fs32 de_long_inode; 78 __fs32 de_checksum; 79 }; 80 81 struct qnx6_long_filename { 82 __fs16 lf_size; 83 __u8 lf_fname[QNX6_LONG_NAME_MAX]; 84 }; 85 86 struct qnx6_root_node { 87 __fs64 size; 88 __fs32 ptr[QNX6_NO_DIRECT_POINTERS]; 89 __u8 levels; 90 __u8 mode; 91 __u8 spare[6]; 92 }; 93 94 struct qnx6_super_block { 95 __fs32 sb_magic; 96 __fs32 sb_checksum; 97 __fs64 sb_serial; 98 __fs32 sb_ctime; /* time the fs was created */ 99 __fs32 sb_atime; /* last access time */ 100 __fs32 sb_flags; 101 __fs16 sb_version1; /* filesystem version information */ 102 __fs16 sb_version2; /* filesystem version information */ 103 __u8 sb_volumeid[16]; 104 __fs32 sb_blocksize; 105 __fs32 sb_num_inodes; 106 __fs32 sb_free_inodes; 107 __fs32 sb_num_blocks; 108 __fs32 sb_free_blocks; 109 __fs32 sb_allocgroup; 110 struct qnx6_root_node Inode; 111 struct qnx6_root_node Bitmap; 112 struct qnx6_root_node Longfile; 113 struct qnx6_root_node Unknown; 114 }; 115 116 /* Audi MMI 3G superblock layout is different to plain qnx6 */ 117 struct qnx6_mmi_super_block { 118 __fs32 sb_magic; 119 __fs32 sb_checksum; 120 __fs64 sb_serial; 121 __u8 sb_spare0[12]; 122 __u8 sb_id[12]; 123 __fs32 sb_blocksize; 124 __fs32 sb_num_inodes; 125 __fs32 sb_free_inodes; 126 __fs32 sb_num_blocks; 127 __fs32 sb_free_blocks; 128 __u8 sb_spare1[4]; 129 struct qnx6_root_node Inode; 130 struct qnx6_root_node Bitmap; 131 struct qnx6_root_node Longfile; 132 struct qnx6_root_node Unknown; 133 }; 134 135 #endif 136