#ifndef _LINUX_RCFS_H
#define _LINUX_RCFS_H

#include <linux/kernel.h>
#include <linux/fs.h>
#include <linux/ckrm_events.h>
#include <linux/ckrm_rc.h>
#include <linux/ckrm_ce.h>

/*
 * The following declarations cannot be included in any of ckrm*.h files 
 * without jumping hoops. Remove later when rearrangements done
 */

#define RCFS_MAGIC	0x4feedbac
#define RCFS_MAGF_NAMELEN 20
extern int RCFS_IS_MAGIC;

#define rcfs_is_magic(dentry)  ((dentry)->d_fsdata == &RCFS_IS_MAGIC)

typedef struct rcfs_inode_info {
	ckrm_core_class_t *core;
	char *name;
	struct inode vfs_inode;
} rcfs_inode_info_t;

#define RCFS_DEFAULT_DIR_MODE	(S_IFDIR | S_IRUGO | S_IXUGO)
#define RCFS_DEFAULT_FILE_MODE	(S_IFREG | S_IRUSR | S_IWUSR | S_IRGRP |S_IROTH)

struct rcfs_magf {
	char name[RCFS_MAGF_NAMELEN];
	int mode;
	struct inode_operations *i_op;
	struct file_operations *i_fop;
};

struct rcfs_mfdesc {
	struct rcfs_magf *rootmf;	/* Root directory and its magic files */
	int rootmflen;			/* length of above array */
	/*
	 * Can have a different magf describing magic files 
	 * for non-root entries too.
	 */
};

extern struct rcfs_mfdesc *genmfdesc[];

extern struct rcfs_inode_info *RCFS_I(struct inode *inode);

int rcfs_empty(struct dentry *);
struct inode *rcfs_get_inode(struct super_block *, int, dev_t);
int rcfs_mknod(struct inode *, struct dentry *, int, dev_t);
int _rcfs_mknod(struct inode *, struct dentry *, int, dev_t);
int rcfs_mkdir(struct inode *, struct dentry *, int);
ckrm_core_class_t *rcfs_make_core(struct dentry *, struct ckrm_core_class *);
struct dentry *rcfs_set_magf_byname(char *, void *);

struct dentry *rcfs_create_internal(struct dentry *, struct rcfs_magf *, int);
int rcfs_delete_internal(struct dentry *);
int rcfs_create_magic(struct dentry *, struct rcfs_magf *, int);
int rcfs_clear_magic(struct dentry *);

extern struct super_operations rcfs_super_ops;
extern struct address_space_operations rcfs_aops;

extern struct inode_operations rcfs_dir_inode_operations;
extern struct inode_operations rcfs_rootdir_inode_operations;
extern struct inode_operations rcfs_file_inode_operations;

extern struct file_operations target_fileops;
extern struct file_operations shares_fileops;
extern struct file_operations stats_fileops;
extern struct file_operations config_fileops;
extern struct file_operations members_fileops;
extern struct file_operations reclassify_fileops;
extern struct file_operations rcfs_file_operations;

/* Callbacks into rcfs from ckrm */

typedef struct rcfs_functions {
	int (*mkroot) (struct rcfs_magf *, int, struct dentry **);
	int (*rmroot) (struct dentry *);
	int (*register_classtype) (ckrm_classtype_t *);
	int (*deregister_classtype) (ckrm_classtype_t *);
} rcfs_fn_t;

int rcfs_register_classtype(ckrm_classtype_t *);
int rcfs_deregister_classtype(ckrm_classtype_t *);
int rcfs_mkroot(struct rcfs_magf *, int, struct dentry **);
int rcfs_rmroot(struct dentry *);

#define RCFS_ROOT "/rcfs"  	/* TODO:  Should use the mount point */
extern struct dentry *rcfs_rootde;
extern rbce_eng_callback_t rcfs_eng_callbacks;

#endif	/* _LINUX_RCFS_H */