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/**
* \file fsw_reiserfs.h
* ReiserFS file system driver header.
*/
/*-
* 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_REISERFS_H_
#define _FSW_REISERFS_H_
#define VOLSTRUCTNAME fsw_reiserfs_volume
#define DNODESTRUCTNAME fsw_reiserfs_dnode
#include "fsw_core.h"
#include "fsw_reiserfs_disk.h"
//! Block size (in shift bits) to be used when reading the reiserfs superblock.
#define REISERFS_SUPERBLOCK_BLOCKSIZEBITS 12
//! Block size (in bytes) to be used when reading the reiserfs superblock.
#define REISERFS_SUPERBLOCK_BLOCKSIZE (1<<REISERFS_SUPERBLOCK_BLOCKSIZEBITS)
/**
* ReiserFS: Results from a tree search.
*/
struct fsw_reiserfs_item {
int valid;
// the found item
struct item_head ih;
fsw_u64 item_offset;
fsw_u32 item_type;
fsw_u8 *item_data;
// path information
fsw_u32 path_bno[MAX_HEIGHT];
fsw_u32 path_index[MAX_HEIGHT];
// block release information
fsw_u32 block_bno;
void *block_buffer;
};
/**
* ReiserFS: Volume structure with reiserfs-specific data.
*/
struct fsw_reiserfs_volume {
struct fsw_volume g; //!< Generic volume structure
struct reiserfs_super_block *sb; //!< Full raw reiserfs superblock structure
int version; //!< Flag for 3.5 or 3.6 format
};
/**
* ReiserFS: Dnode structure with reiserfs-specific data.
*/
struct fsw_reiserfs_dnode {
struct fsw_dnode g; //!< Generic dnode structure
fsw_u32 dir_id; //!< Locality ID for the reiserfs tree (parent dir id)
struct stat_data_v1 *sd_v1; //!< Full stat_data, version 1
struct stat_data *sd_v2; //!< Full stat_data, version 2
};
#endif
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