/*
 *  fs.h - Filesystem common definitions
 *
 *  Copyright (C) 2001 Ethan Benson
 *
 *  Copyright (C) 1999 Benjamin Herrenschmidt
 *
 *  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 FS_H
#define FS_H

#include "partition.h"
#include "file.h"

int fserrorno;
struct boot_fspec_t;

struct fs_t {
	const char* name;

	int (*open)(	struct boot_file_t*	file,
			struct partition_t*	part,
			struct boot_fspec_t*	fspec);

	int (*read)(	struct boot_file_t*	file,
			unsigned int		size,
			void*			buffer);

	int (*seek)(	struct boot_file_t*	file,
			unsigned int		newpos);

	int (*close)(	struct boot_file_t*	file);

	unsigned int (*ino_size)(struct boot_file_t *file);
};

extern const struct fs_t *fs_of;
extern const struct fs_t *fs_of_netboot;

const struct fs_t *fs_open(struct boot_file_t *file,
			  struct partition_t *part, struct boot_fspec_t *fspec);

#endif
