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