nfsnode.h revision 1.10
1 1.1 mycroft /* 2 1.10 mycroft * Copyright (c) 1989, 1993 3 1.10 mycroft * The Regents of the University of California. All rights reserved. 4 1.1 mycroft * 5 1.1 mycroft * This code is derived from software contributed to Berkeley by 6 1.1 mycroft * Rick Macklem at The University of Guelph. 7 1.1 mycroft * 8 1.1 mycroft * Redistribution and use in source and binary forms, with or without 9 1.1 mycroft * modification, are permitted provided that the following conditions 10 1.1 mycroft * are met: 11 1.1 mycroft * 1. Redistributions of source code must retain the above copyright 12 1.1 mycroft * notice, this list of conditions and the following disclaimer. 13 1.1 mycroft * 2. Redistributions in binary form must reproduce the above copyright 14 1.1 mycroft * notice, this list of conditions and the following disclaimer in the 15 1.1 mycroft * documentation and/or other materials provided with the distribution. 16 1.1 mycroft * 3. All advertising materials mentioning features or use of this software 17 1.1 mycroft * must display the following acknowledgement: 18 1.1 mycroft * This product includes software developed by the University of 19 1.1 mycroft * California, Berkeley and its contributors. 20 1.1 mycroft * 4. Neither the name of the University nor the names of its contributors 21 1.1 mycroft * may be used to endorse or promote products derived from this software 22 1.1 mycroft * without specific prior written permission. 23 1.1 mycroft * 24 1.1 mycroft * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 1.1 mycroft * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 1.1 mycroft * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 1.1 mycroft * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 1.1 mycroft * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 1.1 mycroft * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 1.1 mycroft * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 1.1 mycroft * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 1.1 mycroft * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 1.1 mycroft * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 1.1 mycroft * SUCH DAMAGE. 35 1.1 mycroft * 36 1.10 mycroft * from: @(#)nfsnode.h 8.4 (Berkeley) 2/13/94 37 1.10 mycroft * $Id: nfsnode.h,v 1.10 1994/06/08 11:37:12 mycroft Exp $ 38 1.1 mycroft */ 39 1.1 mycroft 40 1.10 mycroft /* 41 1.10 mycroft * Silly rename structure that hangs off the nfsnode until the name 42 1.10 mycroft * can be removed by nfs_inactive() 43 1.10 mycroft */ 44 1.10 mycroft struct sillyrename { 45 1.10 mycroft struct ucred *s_cred; 46 1.10 mycroft struct vnode *s_dvp; 47 1.10 mycroft long s_namlen; 48 1.10 mycroft char s_name[20]; 49 1.10 mycroft }; 50 1.1 mycroft 51 1.1 mycroft /* 52 1.1 mycroft * The nfsnode is the nfs equivalent to ufs's inode. Any similarity 53 1.1 mycroft * is purely coincidental. 54 1.1 mycroft * There is a unique nfsnode allocated for each active file, 55 1.1 mycroft * each current directory, each mounted-on file, text file, and the root. 56 1.1 mycroft * An nfsnode is 'named' by its file handle. (nget/nfs_node.c) 57 1.1 mycroft */ 58 1.1 mycroft 59 1.1 mycroft struct nfsnode { 60 1.10 mycroft struct nfsnode *n_forw; /* hash, forward */ 61 1.10 mycroft struct nfsnode **n_back; /* hash, backward */ 62 1.1 mycroft nfsv2fh_t n_fh; /* NFS File Handle */ 63 1.1 mycroft long n_flag; /* Flag for locking.. */ 64 1.10 mycroft struct vnode *n_vnode; /* vnode associated with this node */ 65 1.10 mycroft struct vattr n_vattr; /* Vnode attribute cache */ 66 1.10 mycroft time_t n_attrstamp; /* Time stamp for cached attributes */ 67 1.10 mycroft struct sillyrename *n_sillyrename; /* Ptr to silly rename struct */ 68 1.10 mycroft u_quad_t n_size; /* Current size of file */ 69 1.10 mycroft int n_error; /* Save write error value */ 70 1.10 mycroft u_long n_direofoffset; /* Dir. EOF offset cache */ 71 1.10 mycroft time_t n_mtime; /* Prev modify time. */ 72 1.10 mycroft time_t n_ctime; /* Prev create time. */ 73 1.10 mycroft u_quad_t n_brev; /* Modify rev when cached */ 74 1.10 mycroft u_quad_t n_lrev; /* Modify rev for lease */ 75 1.10 mycroft time_t n_expiry; /* Lease expiry time */ 76 1.10 mycroft struct nfsnode *n_tnext; /* Nqnfs timer chain */ 77 1.10 mycroft struct nfsnode *n_tprev; 78 1.10 mycroft struct lockf *n_lockf; /* Advisory lock records */ 79 1.10 mycroft struct sillyrename n_silly; /* Silly rename struct */ 80 1.10 mycroft struct timeval n_atim; /* Special file times */ 81 1.10 mycroft struct timeval n_mtim; 82 1.1 mycroft }; 83 1.1 mycroft 84 1.10 mycroft /* 85 1.10 mycroft * Flags for n_flag 86 1.10 mycroft */ 87 1.10 mycroft #define NFLUSHWANT 0x0001 /* Want wakeup from a flush in prog. */ 88 1.10 mycroft #define NFLUSHINPROG 0x0002 /* Avoid multiple calls to vinvalbuf() */ 89 1.10 mycroft #define NMODIFIED 0x0004 /* Might have a modified buffer in bio */ 90 1.10 mycroft #define NWRITEERR 0x0008 /* Flag write errors so close will know */ 91 1.10 mycroft #define NQNFSNONCACHE 0x0020 /* Non-cachable lease */ 92 1.10 mycroft #define NQNFSWRITE 0x0040 /* Write lease */ 93 1.10 mycroft #define NQNFSEVICTED 0x0080 /* Has been evicted */ 94 1.10 mycroft #define NACC 0x0100 /* Special file accessed */ 95 1.10 mycroft #define NUPD 0x0200 /* Special file updated */ 96 1.10 mycroft #define NCHG 0x0400 /* Special file times changed */ 97 1.1 mycroft 98 1.1 mycroft /* 99 1.1 mycroft * Convert between nfsnode pointers and vnode pointers 100 1.1 mycroft */ 101 1.1 mycroft #define VTONFS(vp) ((struct nfsnode *)(vp)->v_data) 102 1.1 mycroft #define NFSTOV(np) ((struct vnode *)(np)->n_vnode) 103 1.10 mycroft 104 1.1 mycroft /* 105 1.10 mycroft * Queue head for nfsiod's 106 1.1 mycroft */ 107 1.10 mycroft TAILQ_HEAD(nfsbufs, buf) nfs_bufq; 108 1.1 mycroft 109 1.10 mycroft #ifdef KERNEL 110 1.1 mycroft /* 111 1.1 mycroft * Prototypes for NFS vnode operations 112 1.1 mycroft */ 113 1.10 mycroft int nfs_lookup __P((struct vop_lookup_args *)); 114 1.10 mycroft int nfs_create __P((struct vop_create_args *)); 115 1.10 mycroft int nfs_mknod __P((struct vop_mknod_args *)); 116 1.10 mycroft int nfs_open __P((struct vop_open_args *)); 117 1.10 mycroft int nfs_close __P((struct vop_close_args *)); 118 1.10 mycroft int nfsspec_close __P((struct vop_close_args *)); 119 1.10 mycroft #ifdef FIFO 120 1.10 mycroft int nfsfifo_close __P((struct vop_close_args *)); 121 1.10 mycroft #endif 122 1.10 mycroft int nfs_access __P((struct vop_access_args *)); 123 1.10 mycroft int nfsspec_access __P((struct vop_access_args *)); 124 1.10 mycroft int nfs_getattr __P((struct vop_getattr_args *)); 125 1.10 mycroft int nfs_setattr __P((struct vop_setattr_args *)); 126 1.10 mycroft int nfs_read __P((struct vop_read_args *)); 127 1.10 mycroft int nfs_write __P((struct vop_write_args *)); 128 1.10 mycroft int nfsspec_read __P((struct vop_read_args *)); 129 1.10 mycroft int nfsspec_write __P((struct vop_write_args *)); 130 1.10 mycroft #ifdef FIFO 131 1.10 mycroft int nfsfifo_read __P((struct vop_read_args *)); 132 1.10 mycroft int nfsfifo_write __P((struct vop_write_args *)); 133 1.10 mycroft #endif 134 1.10 mycroft #define nfs_ioctl ((int (*) __P((struct vop_ioctl_args *)))enoioctl) 135 1.10 mycroft #define nfs_select ((int (*) __P((struct vop_select_args *)))seltrue) 136 1.10 mycroft int nfs_mmap __P((struct vop_mmap_args *)); 137 1.10 mycroft int nfs_fsync __P((struct vop_fsync_args *)); 138 1.10 mycroft #define nfs_seek ((int (*) __P((struct vop_seek_args *)))nullop) 139 1.10 mycroft int nfs_remove __P((struct vop_remove_args *)); 140 1.10 mycroft int nfs_link __P((struct vop_link_args *)); 141 1.10 mycroft int nfs_rename __P((struct vop_rename_args *)); 142 1.10 mycroft int nfs_mkdir __P((struct vop_mkdir_args *)); 143 1.10 mycroft int nfs_rmdir __P((struct vop_rmdir_args *)); 144 1.10 mycroft int nfs_symlink __P((struct vop_symlink_args *)); 145 1.10 mycroft int nfs_readdir __P((struct vop_readdir_args *)); 146 1.10 mycroft int nfs_readlink __P((struct vop_readlink_args *)); 147 1.10 mycroft int nfs_abortop __P((struct vop_abortop_args *)); 148 1.10 mycroft int nfs_inactive __P((struct vop_inactive_args *)); 149 1.10 mycroft int nfs_reclaim __P((struct vop_reclaim_args *)); 150 1.10 mycroft int nfs_lock __P((struct vop_lock_args *)); 151 1.10 mycroft int nfs_unlock __P((struct vop_unlock_args *)); 152 1.10 mycroft int nfs_bmap __P((struct vop_bmap_args *)); 153 1.10 mycroft int nfs_strategy __P((struct vop_strategy_args *)); 154 1.10 mycroft int nfs_print __P((struct vop_print_args *)); 155 1.10 mycroft int nfs_islocked __P((struct vop_islocked_args *)); 156 1.10 mycroft int nfs_pathconf __P((struct vop_pathconf_args *)); 157 1.10 mycroft int nfs_advlock __P((struct vop_advlock_args *)); 158 1.10 mycroft int nfs_blkatoff __P((struct vop_blkatoff_args *)); 159 1.10 mycroft int nfs_vget __P((struct mount *, ino_t, struct vnode **)); 160 1.10 mycroft int nfs_valloc __P((struct vop_valloc_args *)); 161 1.10 mycroft #define nfs_reallocblks \ 162 1.10 mycroft ((int (*) __P((struct vop_reallocblks_args *)))eopnotsupp) 163 1.10 mycroft int nfs_vfree __P((struct vop_vfree_args *)); 164 1.10 mycroft int nfs_truncate __P((struct vop_truncate_args *)); 165 1.10 mycroft int nfs_update __P((struct vop_update_args *)); 166 1.10 mycroft int nfs_bwrite __P((struct vop_bwrite_args *)); 167 1.10 mycroft #endif /* KERNEL */ 168
Indexes created Wed Sep 24 05:09:52 GMT 2025