home *** CD-ROM | disk | FTP | other *** search
- /* $NetBSD: nfsnode.h,v 1.14 1995/03/26 20:37:32 jtc Exp $ */
-
- /*
- * 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 8.6 (Berkeley) 8/18/94
- */
-
- /*
- * 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 {
- LIST_ENTRY(nfsnode) n_hash; /* Hash chain */
- CIRCLEQ_ENTRY(nfsnode) n_timer; /* Nqnfs timer chain */
- 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 lockf *n_lockf; /* Advisory lock records */
- 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(, 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 *));
- #define nfs_lease_check ((int (*) __P((struct vop_lease_args *)))nullop)
- 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 */
-