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/*
* Creation Date: <2001/05/06 17:12:45 samuel>
* Time-stamp: <2003/10/22 11:43:45 samuel>
*
* <fs_loader.h>
*
* Generic file system access
*
* Copyright (C) 2001, 2002, 2003 Samuel Rydh (samuel@ibrium.se)
*
* 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
*
*/
#ifndef _H_FS
#define _H_FS
typedef struct fs_ops fs_ops_t;
typedef struct opaque_struct file_desc_t;
#define fs_open_path( fs, path ) (fs)->open_path( fs, path )
#define fs_search_rom( fs ) (fs)->search_rom( fs )
#define fs_search_file( fs, name ) (fs)->search_file( fs, name )
#define fs_vol_name( fs, buf, size ) (fs)->vol_name( fs, buf, size )
struct fs_ops {
void *fs_data;
int fd; /* owner block device */
int type;
void (*close_fs)( fs_ops_t *fs );
file_desc_t *(*open_path)( fs_ops_t *fs, const char *path );
file_desc_t *(*search_rom)( fs_ops_t *fs );
file_desc_t *(*search_file)( fs_ops_t *fs, const char *name );
char *(*vol_name)( fs_ops_t *fs, char *buf, int size );
/* file ops */
void (*close)( file_desc_t *file );
int (*read)( file_desc_t *file, void *buf, size_t count );
int (*lseek)( file_desc_t *file, off_t offset, int whence );
char *(*get_path)( file_desc_t *file, char *buf, int len );
void (*dir)( file_desc_t *file );
const char *(*get_fstype)( fs_ops_t *fs );
};
extern fs_ops_t *fs_open( int fs_type, int fd );
extern void fs_close( fs_ops_t *fs );
const char *fs_get_name( fs_ops_t *fs );
#ifdef CONFIG_HFSP
extern int fs_hfsp_open( int fd, fs_ops_t *fs );
extern int fs_hfsp_probe( int fd, long long offs );
#else
static inline int fs_hfsp_open( int fd, fs_ops_t *fs ) { return -1; }
static inline int fs_hfsp_probe( int fd, long long offs ) { return -1; }
#endif
#ifdef CONFIG_HFS
extern int fs_hfs_open( int fd, fs_ops_t *fs );
extern int fs_hfs_probe( int fd, long long offs );
#else
static inline int fs_hfs_open( int fd, fs_ops_t *fs ) { return -1; }
static inline int fs_hfs_probe( int fd, long long offs ) { return -1; }
#endif
#ifdef CONFIG_ISO9660
extern int fs_iso9660_open( int fd, fs_ops_t *fs );
extern int fs_iso9660_probe( int fd, long long offs );
#else
static inline int fs_iso9660_open( int fd, fs_ops_t *fs ) { return -1; }
static inline int fs_iso9660_probe( int fd, long long offs ) { return -1; }
#endif
#ifdef CONFIG_EXT2
extern int fs_ext2_open( int fd, fs_ops_t *fs );
extern int fs_ext2_probe( int fd, long long offs );
#else
static inline int fs_ext2_open( int fd, fs_ops_t *fs ) { return -1; }
static inline int fs_ext2_probe( int fd, long long offs ) { return -1; }
#endif
#ifdef CONFIG_GRUBFS
extern int fs_grubfs_open( int fd, fs_ops_t *fs );
extern int fs_grubfs_probe( int fd, long long offs );
#else
static inline int fs_grubfs_open( int fd, fs_ops_t *fs ) { return -1; }
static inline int fs_grubfs_probe( int fd, long long offs ) { return -1; }
#endif
/* misc */
extern char *get_hfs_vol_name( int fd, char *buf, int size );
#endif /* _H_FS */
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