Add various defines which are not necessary for reading/writing filesystems, but which are useful for creating them. These mostly come from Linux v6.5-rc2 (what I had checked out).
Signed-off-by: Sean Anderson seanga2@gmail.com ---
Changes in v2: - Split off from fs test
include/ext4fs.h | 1 + include/ext_common.h | 14 ++++++++++++++ 2 files changed, 15 insertions(+)
diff --git a/include/ext4fs.h b/include/ext4fs.h index cb5d9cc0a5c..dd66d27f776 100644 --- a/include/ext4fs.h +++ b/include/ext4fs.h @@ -31,6 +31,7 @@ struct disk_partition;
#define EXT4_INDEX_FL 0x00001000 /* Inode uses hash tree index */ +#define EXT4_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/ #define EXT4_EXTENTS_FL 0x00080000 /* Inode uses extents */ #define EXT4_EXT_MAGIC 0xf30a #define EXT4_FEATURE_RO_COMPAT_GDT_CSUM 0x0010 diff --git a/include/ext_common.h b/include/ext_common.h index 30a0c248414..b09bbde116a 100644 --- a/include/ext_common.h +++ b/include/ext_common.h @@ -35,6 +35,16 @@ struct cmd_tbl; #define EXT2_PATH_MAX 4096 /* Maximum nesting of symlinks, used to prevent a loop. */ #define EXT2_MAX_SYMLINKCNT 8 +/* Maximum file name length */ +#define EXT2_NAME_LEN 255 + +/* + * Revision levels + */ +#define EXT2_GOOD_OLD_REV 0 /* The good old (original) format */ +#define EXT2_DYNAMIC_REV 1 /* V2 format w/ dynamic inode sizes */ + +#define EXT2_GOOD_OLD_INODE_SIZE 128
/* Filetype used in directory entry. */ #define FILETYPE_UNKNOWN 0 @@ -48,6 +58,10 @@ struct cmd_tbl; #define FILETYPE_INO_DIRECTORY 0040000 #define FILETYPE_INO_SYMLINK 0120000 #define EXT2_ROOT_INO 2 /* Root inode */ +#define EXT2_BOOT_LOADER_INO 5 /* Boot loader inode */ + +/* First non-reserved inode for old ext2 filesystems */ +#define EXT2_GOOD_OLD_FIRST_INO 11
/* The size of an ext2 block in bytes. */ #define EXT2_BLOCK_SIZE(data) (1 << LOG2_BLOCK_SIZE(data))