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