second/fs.c

/*
    FileSystems common definitions

    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
*/

#include "stdlib.h"
#include "fs.h"

extern const struct fs_t	of_filesystem;
extern const struct fs_t	of_net_filesystem;
extern const struct fs_t	ext2_filesystem;
extern const struct fs_t        reiserfs_filesystem;
//extern const struct fs_t	iso_filesystem;

/* Filesystem handlers yaboot knows about */
static const struct fs_t *block_filesystems[] = {
	&ext2_filesystem,		/* ext2 */
	&reiserfs_filesystem,		/* reiserfs */
	&of_filesystem,			/* HFS/HFS+, ISO9660, UDF, UFS */
	NULL
};

const struct fs_t *fs_of = &of_filesystem;              /* needed by ISO9660 */
const struct fs_t *fs_of_netboot = &of_net_filesystem;  /* needed by file.c */

const struct fs_t *
fs_open( struct boot_file_t *file, const char *dev_name,
         struct partition_t *part, const char *file_name)
{
    const struct fs_t **fs;
    for( fs = block_filesystems; *fs; fs++ )
        if( (*fs)->open( file, dev_name, part, file_name ) == FILE_ERR_OK )
            break;

    return *fs;
}