--- /dev/null
+/**
+ * \file fsw_ext4.h
+ * ext4 file system driver header.
+ */
+
+/*-
+ * Copyright (c) 2012 Stefan Agner
+ * Portions Copyright (c) 2006 Christoph Pfisterer
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef _FSW_EXT4_H_
+#define _FSW_EXT4_H_
+
+#define VOLSTRUCTNAME fsw_ext4_volume
+#define DNODESTRUCTNAME fsw_ext4_dnode
+#include "fsw_core.h"
+
+#include "fsw_ext4_disk.h"
+
+
+//! Block size to be used when reading the ext4 superblock.
+#define EXT4_SUPERBLOCK_BLOCKSIZE 1024
+//! Block number where the (master copy of the) ext4 superblock resides.
+#define EXT4_SUPERBLOCK_BLOCKNO 1
+
+
+/**
+ * ext4: Volume structure with ext2-specific data.
+ */
+
+struct fsw_ext4_volume {
+ struct fsw_volume g; //!< Generic volume structure
+
+ struct ext4_super_block *sb; //!< Full raw ext2 superblock structure
+ fsw_u32 *inotab_bno; //!< Block numbers of the inode tables
+ fsw_u32 ind_bcnt; //!< Number of blocks addressable through an indirect block
+ fsw_u32 dind_bcnt; //!< Number of blocks addressable through a double-indirect block
+ fsw_u32 inode_size; //!< Size of inode structure in bytes
+};
+
+/**
+ * ext2: Dnode structure with ext2-specific data.
+ */
+
+struct fsw_ext4_dnode {
+ struct fsw_dnode g; //!< Generic dnode structure
+
+ struct ext4_inode *raw; //!< Full raw inode structure
+};
+
+
+#endif