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/*
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Rick Macklem at The University of Guelph.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)nfsnode.h 8.4 (Berkeley) 2/13/94
*/
/*
* Silly rename structure that hangs off the nfsnode until the name
* can be removed by nfs_inactive()
*/
struct sillyrename {
struct ucred *s_cred;
struct vnode *s_dvp;
long s_namlen;
char s_name[20];
};
/*
* The nfsnode is the nfs equivalent to ufs's inode. Any similarity
* is purely coincidental.
* There is a unique nfsnode allocated for each active file,
* each current directory, each mounted-on file, text file, and the root.
* An nfsnode is 'named' by its file handle. (nget/nfs_node.c)
*/
struct nfsnode {
struct nfsnode *n_forw; /* hash, forward */
struct nfsnode **n_back; /* hash, backward */
nfsv2fh_t n_fh; /* NFS File Handle */
long n_flag; /* Flag for locking.. */
struct vnode *n_vnode; /* vnode associated with this node */
struct vattr n_vattr; /* Vnode attribute cache */
time_t n_attrstamp; /* Time stamp for cached attributes */
struct sillyrename *n_sillyrename; /* Ptr to silly rename struct */
u_quad_t n_size; /* Current size of file */
int n_error; /* Save write error value */
u_long n_direofoffset; /* Dir. EOF offset cache */
time_t n_mtime; /* Prev modify time. */
time_t n_ctime; /* Prev create time. */
u_quad_t n_brev; /* Modify rev when cached */
u_quad_t n_lrev; /* Modify rev for lease */
time_t n_expiry; /* Lease expiry time */
struct nfsnode *n_tnext; /* Nqnfs timer chain */
struct nfsnode *n_tprev;
long spare1; /* To 8 byte boundary */
struct sillyrename n_silly; /* Silly rename struct */
struct timeval n_atim; /* Special file times */
struct timeval n_mtim;
};
/*
* Flags for n_flag
*/
#define NFLUSHWANT 0x0001 /* Want wakeup from a flush in prog. */
#define NFLUSHINPROG 0x0002 /* Avoid multiple calls to vinvalbuf() */
#define NMODIFIED 0x0004 /* Might have a modified buffer in bio */
#define NWRITEERR 0x0008 /* Flag write errors so close will know */
#define NQNFSNONCACHE 0x0020 /* Non-cachable lease */
#define NQNFSWRITE 0x0040 /* Write lease */
#define NQNFSEVICTED 0x0080 /* Has been evicted */
#define NACC 0x0100 /* Special file accessed */
#define NUPD 0x0200 /* Special file updated */
#define NCHG 0x0400 /* Special file times changed */
/*
* Convert between nfsnode pointers and vnode pointers
*/
#define VTONFS(vp) ((struct nfsnode *)(vp)->v_data)
#define NFSTOV(np) ((struct vnode *)(np)->n_vnode)
/*
* Queue head for nfsiod's
*/
TAILQ_HEAD(nfsbufs, buf) nfs_bufq;
#ifdef KERNEL
/*
* Prototypes for NFS vnode operations
*/
int nfs_lookup __P((struct vop_lookup_args *));
int nfs_create __P((struct vop_create_args *));
int nfs_mknod __P((struct vop_mknod_args *));
int nfs_open __P((struct vop_open_args *));
int nfs_close __P((struct vop_close_args *));
int nfsspec_close __P((struct vop_close_args *));
#ifdef FIFO
int nfsfifo_close __P((struct vop_close_args *));
#endif
int nfs_access __P((struct vop_access_args *));
int nfsspec_access __P((struct vop_access_args *));
int nfs_getattr __P((struct vop_getattr_args *));
int nfs_setattr __P((struct vop_setattr_args *));
int nfs_read __P((struct vop_read_args *));
int nfs_write __P((struct vop_write_args *));
int nfsspec_read __P((struct vop_read_args *));
int nfsspec_write __P((struct vop_write_args *));
#ifdef FIFO
int nfsfifo_read __P((struct vop_read_args *));
int nfsfifo_write __P((struct vop_write_args *));
#endif
#define nfs_ioctl ((int (*) __P((struct vop_ioctl_args *)))enoioctl)
#define nfs_select ((int (*) __P((struct vop_select_args *)))seltrue)
int nfs_mmap __P((struct vop_mmap_args *));
int nfs_fsync __P((struct vop_fsync_args *));
#define nfs_seek ((int (*) __P((struct vop_seek_args *)))nullop)
int nfs_remove __P((struct vop_remove_args *));
int nfs_link __P((struct vop_link_args *));
int nfs_rename __P((struct vop_rename_args *));
int nfs_mkdir __P((struct vop_mkdir_args *));
int nfs_rmdir __P((struct vop_rmdir_args *));
int nfs_symlink __P((struct vop_symlink_args *));
int nfs_readdir __P((struct vop_readdir_args *));
int nfs_readlink __P((struct vop_readlink_args *));
int nfs_abortop __P((struct vop_abortop_args *));
int nfs_inactive __P((struct vop_inactive_args *));
int nfs_reclaim __P((struct vop_reclaim_args *));
int nfs_lock __P((struct vop_lock_args *));
int nfs_unlock __P((struct vop_unlock_args *));
int nfs_bmap __P((struct vop_bmap_args *));
int nfs_strategy __P((struct vop_strategy_args *));
int nfs_print __P((struct vop_print_args *));
int nfs_islocked __P((struct vop_islocked_args *));
int nfs_pathconf __P((struct vop_pathconf_args *));
int nfs_advlock __P((struct vop_advlock_args *));
int nfs_blkatoff __P((struct vop_blkatoff_args *));
int nfs_vget __P((struct mount *, ino_t, struct vnode **));
int nfs_valloc __P((struct vop_valloc_args *));
#define nfs_reallocblks \
((int (*) __P((struct vop_reallocblks_args *)))eopnotsupp)
int nfs_vfree __P((struct vop_vfree_args *));
int nfs_truncate __P((struct vop_truncate_args *));
int nfs_update __P((struct vop_update_args *));
int nfs_bwrite __P((struct vop_bwrite_args *));
#endif /* KERNEL */
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