/* * 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 * $Id: nfsnode.h,v 1.3 1994/08/08 17:30:55 davidg Exp $ */ /* * 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 */ struct lockf *n_lockf; /* Locking record 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; 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 */