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/*
* include/linux/nfsd/nfsfh.h
*
* This file describes the layout of the file handles as passed
* over the wire.
*
* Earlier versions of knfsd used to sign file handles using keyed MD5
* or SHA. I've removed this code, because it doesn't give you more
* security than blocking external access to port 2049 on your firewall.
*
* Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de>
*/
#ifndef _LINUX_NFSD_FH_H
#define _LINUX_NFSD_FH_H
# include <linux/sunrpc/svc.h>
#include <uapi/linux/nfsd/nfsfh.h>
static inline __u32 ino_t_to_u32(ino_t ino)
{
return (__u32) ino;
}
static inline ino_t u32_to_ino_t(__u32 uino)
{
return (ino_t) uino;
}
/*
* This is the internal representation of an NFS handle used in knfsd.
* pre_mtime/post_version will be used to support wcc_attr's in NFSv3.
*/
typedef struct svc_fh {
struct knfsd_fh fh_handle; /* FH data */
struct dentry * fh_dentry; /* validated dentry */
struct svc_export * fh_export; /* export pointer */
int fh_maxsize; /* max size for fh_handle */
unsigned char fh_locked; /* inode locked by us */
unsigned char fh_want_write; /* remount protection taken */
#ifdef CONFIG_NFSD_V3
unsigned char fh_post_saved; /* post-op attrs saved */
unsigned char fh_pre_saved; /* pre-op attrs saved */
/* Pre-op attributes saved during fh_lock */
__u64 fh_pre_size; /* size before operation */
struct timespec fh_pre_mtime; /* mtime before oper */
struct timespec fh_pre_ctime; /* ctime before oper */
/*
* pre-op nfsv4 change attr: note must check IS_I_VERSION(inode)
* to find out if it is valid.
*/
u64 fh_pre_change;
/* Post-op attributes saved in fh_unlock */
struct kstat fh_post_attr; /* full attrs after operation */
u64 fh_post_change; /* nfsv4 change; see above */
#endif /* CONFIG_NFSD_V3 */
} svc_fh;
#endif /* _LINUX_NFSD_FH_H */