fs: ext4: Add some defines for testing

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>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/include/ext4fs.h b/include/ext4fs.h
index cb5d9cc0a5c050dcc0fa33b22eb72c4a8555205d..dd66d27f776387f1d14aba181dfbfea9eab74562 100644 (file)
--- 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 30a0c248414af5ecb9bcab7d1caf0cb8d0ba5e8e..b09bbde116a5a43ca839a89d9c8b39ec60ffc66f 100644 (file)
--- 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))