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135 lines
3.3 KiB
135 lines
3.3 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* Name : qnx6_fs.h |
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* Author : Kai Bankett |
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* Function : qnx6 global filesystem definitions |
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* History : 17-01-2012 created |
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*/ |
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#ifndef _LINUX_QNX6_FS_H |
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#define _LINUX_QNX6_FS_H |
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#include <linux/types.h> |
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#include <linux/magic.h> |
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#define QNX6_ROOT_INO 1 |
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/* for di_status */ |
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#define QNX6_FILE_DIRECTORY 0x01 |
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#define QNX6_FILE_DELETED 0x02 |
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#define QNX6_FILE_NORMAL 0x03 |
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#define QNX6_SUPERBLOCK_SIZE 0x200 /* superblock always is 512 bytes */ |
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#define QNX6_SUPERBLOCK_AREA 0x1000 /* area reserved for superblock */ |
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#define QNX6_BOOTBLOCK_SIZE 0x2000 /* heading bootblock area */ |
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#define QNX6_DIR_ENTRY_SIZE 0x20 /* dir entry size of 32 bytes */ |
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#define QNX6_INODE_SIZE 0x80 /* each inode is 128 bytes */ |
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#define QNX6_INODE_SIZE_BITS 7 /* inode entry size shift */ |
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#define QNX6_NO_DIRECT_POINTERS 16 /* 16 blockptrs in sbl/inode */ |
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#define QNX6_PTR_MAX_LEVELS 5 /* maximum indirect levels */ |
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/* for filenames */ |
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#define QNX6_SHORT_NAME_MAX 27 |
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#define QNX6_LONG_NAME_MAX 510 |
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/* list of mount options */ |
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#define QNX6_MOUNT_MMI_FS 0x010000 /* mount as Audi MMI 3G fs */ |
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/* |
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* This is the original qnx6 inode layout on disk. |
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* Each inode is 128 byte long. |
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*/ |
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struct qnx6_inode_entry { |
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__fs64 di_size; |
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__fs32 di_uid; |
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__fs32 di_gid; |
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__fs32 di_ftime; |
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__fs32 di_mtime; |
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__fs32 di_atime; |
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__fs32 di_ctime; |
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__fs16 di_mode; |
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__fs16 di_ext_mode; |
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__fs32 di_block_ptr[QNX6_NO_DIRECT_POINTERS]; |
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__u8 di_filelevels; |
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__u8 di_status; |
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__u8 di_unknown2[2]; |
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__fs32 di_zero2[6]; |
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}; |
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/* |
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* Each directory entry is maximum 32 bytes long. |
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* If more characters or special characters required it is stored |
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* in the longfilenames structure. |
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*/ |
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struct qnx6_dir_entry { |
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__fs32 de_inode; |
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__u8 de_size; |
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char de_fname[QNX6_SHORT_NAME_MAX]; |
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}; |
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/* |
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* Longfilename direntries have a different structure |
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*/ |
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struct qnx6_long_dir_entry { |
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__fs32 de_inode; |
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__u8 de_size; |
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__u8 de_unknown[3]; |
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__fs32 de_long_inode; |
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__fs32 de_checksum; |
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}; |
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struct qnx6_long_filename { |
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__fs16 lf_size; |
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__u8 lf_fname[QNX6_LONG_NAME_MAX]; |
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}; |
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struct qnx6_root_node { |
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__fs64 size; |
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__fs32 ptr[QNX6_NO_DIRECT_POINTERS]; |
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__u8 levels; |
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__u8 mode; |
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__u8 spare[6]; |
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}; |
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struct qnx6_super_block { |
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__fs32 sb_magic; |
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__fs32 sb_checksum; |
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__fs64 sb_serial; |
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__fs32 sb_ctime; /* time the fs was created */ |
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__fs32 sb_atime; /* last access time */ |
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__fs32 sb_flags; |
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__fs16 sb_version1; /* filesystem version information */ |
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__fs16 sb_version2; /* filesystem version information */ |
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__u8 sb_volumeid[16]; |
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__fs32 sb_blocksize; |
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__fs32 sb_num_inodes; |
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__fs32 sb_free_inodes; |
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__fs32 sb_num_blocks; |
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__fs32 sb_free_blocks; |
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__fs32 sb_allocgroup; |
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struct qnx6_root_node Inode; |
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struct qnx6_root_node Bitmap; |
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struct qnx6_root_node Longfile; |
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struct qnx6_root_node Unknown; |
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}; |
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/* Audi MMI 3G superblock layout is different to plain qnx6 */ |
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struct qnx6_mmi_super_block { |
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__fs32 sb_magic; |
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__fs32 sb_checksum; |
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__fs64 sb_serial; |
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__u8 sb_spare0[12]; |
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__u8 sb_id[12]; |
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__fs32 sb_blocksize; |
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__fs32 sb_num_inodes; |
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__fs32 sb_free_inodes; |
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__fs32 sb_num_blocks; |
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__fs32 sb_free_blocks; |
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__u8 sb_spare1[4]; |
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struct qnx6_root_node Inode; |
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struct qnx6_root_node Bitmap; |
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struct qnx6_root_node Longfile; |
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struct qnx6_root_node Unknown; |
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}; |
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#endif
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