nfsnode.h revision 1.1.1.1.10.3
1 1.1.1.1.10.2 tls /* $NetBSD: nfsnode.h,v 1.1.1.1.10.3 2017/12/03 11:38:42 jdolecek Exp $ */ 2 1.1.1.1.10.2 tls /*- 3 1.1.1.1.10.2 tls * Copyright (c) 1989, 1993 4 1.1.1.1.10.2 tls * The Regents of the University of California. All rights reserved. 5 1.1.1.1.10.2 tls * 6 1.1.1.1.10.2 tls * This code is derived from software contributed to Berkeley by 7 1.1.1.1.10.2 tls * Rick Macklem at The University of Guelph. 8 1.1.1.1.10.2 tls * 9 1.1.1.1.10.2 tls * Redistribution and use in source and binary forms, with or without 10 1.1.1.1.10.2 tls * modification, are permitted provided that the following conditions 11 1.1.1.1.10.2 tls * are met: 12 1.1.1.1.10.2 tls * 1. Redistributions of source code must retain the above copyright 13 1.1.1.1.10.2 tls * notice, this list of conditions and the following disclaimer. 14 1.1.1.1.10.2 tls * 2. Redistributions in binary form must reproduce the above copyright 15 1.1.1.1.10.2 tls * notice, this list of conditions and the following disclaimer in the 16 1.1.1.1.10.2 tls * documentation and/or other materials provided with the distribution. 17 1.1.1.1.10.2 tls * 4. Neither the name of the University nor the names of its contributors 18 1.1.1.1.10.2 tls * may be used to endorse or promote products derived from this software 19 1.1.1.1.10.2 tls * without specific prior written permission. 20 1.1.1.1.10.2 tls * 21 1.1.1.1.10.2 tls * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 1.1.1.1.10.2 tls * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 1.1.1.1.10.2 tls * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 1.1.1.1.10.2 tls * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 1.1.1.1.10.2 tls * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 1.1.1.1.10.2 tls * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 1.1.1.1.10.2 tls * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 1.1.1.1.10.2 tls * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 1.1.1.1.10.2 tls * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 1.1.1.1.10.2 tls * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 1.1.1.1.10.2 tls * SUCH DAMAGE. 32 1.1.1.1.10.2 tls * 33 1.1.1.1.10.3 jdolecek * FreeBSD: head/sys/fs/nfsclient/nfsnode.h 303715 2016-08-03 15:58:20Z kib 34 1.1.1.1.10.2 tls * $NetBSD: nfsnode.h,v 1.1.1.1.10.3 2017/12/03 11:38:42 jdolecek Exp $ 35 1.1.1.1.10.2 tls */ 36 1.1.1.1.10.2 tls 37 1.1.1.1.10.2 tls #ifndef _NFSCLIENT_NFSNODE_H_ 38 1.1.1.1.10.2 tls #define _NFSCLIENT_NFSNODE_H_ 39 1.1.1.1.10.2 tls 40 1.1.1.1.10.2 tls /* 41 1.1.1.1.10.2 tls * Silly rename structure that hangs off the nfsnode until the name 42 1.1.1.1.10.2 tls * can be removed by nfs_inactive() 43 1.1.1.1.10.2 tls */ 44 1.1.1.1.10.2 tls struct sillyrename { 45 1.1.1.1.10.2 tls struct ucred *s_cred; 46 1.1.1.1.10.2 tls struct vnode *s_dvp; 47 1.1.1.1.10.2 tls long s_namlen; 48 1.1.1.1.10.2 tls char s_name[32]; 49 1.1.1.1.10.2 tls }; 50 1.1.1.1.10.2 tls 51 1.1.1.1.10.2 tls /* 52 1.1.1.1.10.2 tls * This structure is used to save the logical directory offset to 53 1.1.1.1.10.2 tls * NFS cookie mappings. 54 1.1.1.1.10.2 tls * The mappings are stored in a list headed 55 1.1.1.1.10.2 tls * by n_cookies, as required. 56 1.1.1.1.10.2 tls * There is one mapping for each NFS_DIRBLKSIZ bytes of directory information 57 1.1.1.1.10.2 tls * stored in increasing logical offset byte order. 58 1.1.1.1.10.2 tls */ 59 1.1.1.1.10.2 tls #define NFSNUMCOOKIES 31 60 1.1.1.1.10.2 tls 61 1.1.1.1.10.2 tls struct nfsdmap { 62 1.1.1.1.10.2 tls LIST_ENTRY(nfsdmap) ndm_list; 63 1.1.1.1.10.2 tls int ndm_eocookie; 64 1.1.1.1.10.2 tls union { 65 1.1.1.1.10.2 tls nfsuint64 ndmu3_cookies[NFSNUMCOOKIES]; 66 1.1.1.1.10.2 tls uint64_t ndmu4_cookies[NFSNUMCOOKIES]; 67 1.1.1.1.10.2 tls } ndm_un1; 68 1.1.1.1.10.2 tls }; 69 1.1.1.1.10.2 tls 70 1.1.1.1.10.2 tls #define ndm_cookies ndm_un1.ndmu3_cookies 71 1.1.1.1.10.2 tls #define ndm4_cookies ndm_un1.ndmu4_cookies 72 1.1.1.1.10.2 tls 73 1.1.1.1.10.2 tls struct nfs_accesscache { 74 1.1.1.1.10.2 tls u_int32_t mode; /* ACCESS mode cache */ 75 1.1.1.1.10.2 tls uid_t uid; /* credentials having mode */ 76 1.1.1.1.10.2 tls time_t stamp; /* mode cache timestamp */ 77 1.1.1.1.10.2 tls }; 78 1.1.1.1.10.2 tls 79 1.1.1.1.10.2 tls /* 80 1.1.1.1.10.2 tls * The nfsnode is the nfs equivalent to ufs's inode. Any similarity 81 1.1.1.1.10.2 tls * is purely coincidental. 82 1.1.1.1.10.2 tls * There is a unique nfsnode allocated for each active file, 83 1.1.1.1.10.2 tls * each current directory, each mounted-on file, text file, and the root. 84 1.1.1.1.10.2 tls * An nfsnode is 'named' by its file handle. (nget/nfs_node.c) 85 1.1.1.1.10.2 tls * If this structure exceeds 256 bytes (it is currently 256 using 4.4BSD-Lite 86 1.1.1.1.10.2 tls * type definitions), file handles of > 32 bytes should probably be split out 87 1.1.1.1.10.2 tls * into a separate MALLOC()'d data structure. (Reduce the size of nfsfh_t by 88 1.1.1.1.10.2 tls * changing the definition in nfsproto.h of NFS_SMALLFH.) 89 1.1.1.1.10.2 tls * NB: Hopefully the current order of the fields is such that everything will 90 1.1.1.1.10.2 tls * be well aligned and, therefore, tightly packed. 91 1.1.1.1.10.2 tls */ 92 1.1.1.1.10.2 tls struct nfsnode { 93 1.1.1.1.10.3 jdolecek kmutex_t n_mtx; /* Protects all of these members */ 94 1.1.1.1.10.2 tls u_quad_t n_size; /* Current size of file */ 95 1.1.1.1.10.2 tls u_quad_t n_brev; /* Modify rev when cached */ 96 1.1.1.1.10.2 tls u_quad_t n_lrev; /* Modify rev for lease */ 97 1.1.1.1.10.2 tls struct nfsvattr n_vattr; /* Vnode attribute cache */ 98 1.1.1.1.10.2 tls time_t n_attrstamp; /* Attr. cache timestamp */ 99 1.1.1.1.10.2 tls struct nfs_accesscache n_accesscache[NFS_ACCESSCACHESIZE]; 100 1.1.1.1.10.2 tls struct timespec n_mtime; /* Prev modify time. */ 101 1.1.1.1.10.2 tls struct nfsfh *n_fhp; /* NFS File Handle */ 102 1.1.1.1.10.2 tls struct vnode *n_vnode; /* associated vnode */ 103 1.1.1.1.10.2 tls struct vnode *n_dvp; /* parent vnode */ 104 1.1.1.1.10.2 tls struct lockf *n_lockf; /* Locking record of file */ 105 1.1.1.1.10.2 tls int n_error; /* Save write error value */ 106 1.1.1.1.10.2 tls union { 107 1.1.1.1.10.2 tls struct timespec nf_atim; /* Special file times */ 108 1.1.1.1.10.2 tls nfsuint64 nd_cookieverf; /* Cookie verifier (dir only) */ 109 1.1.1.1.10.2 tls u_char nd4_cookieverf[NFSX_VERF]; 110 1.1.1.1.10.2 tls } n_un1; 111 1.1.1.1.10.2 tls union { 112 1.1.1.1.10.2 tls struct timespec nf_mtim; 113 1.1.1.1.10.2 tls off_t nd_direof; /* Dir. EOF offset cache */ 114 1.1.1.1.10.2 tls } n_un2; 115 1.1.1.1.10.2 tls union { 116 1.1.1.1.10.2 tls struct sillyrename *nf_silly; /* Ptr to silly rename struct */ 117 1.1.1.1.10.2 tls LIST_HEAD(, nfsdmap) nd_cook; /* cookies */ 118 1.1.1.1.10.2 tls } n_un3; 119 1.1.1.1.10.2 tls short n_fhsize; /* size in bytes, of fh */ 120 1.1.1.1.10.2 tls u_int32_t n_flag; /* Flag for locking.. */ 121 1.1.1.1.10.2 tls int n_directio_opens; 122 1.1.1.1.10.2 tls int n_directio_asyncwr; 123 1.1.1.1.10.2 tls u_int64_t n_change; /* old Change attribute */ 124 1.1.1.1.10.2 tls struct nfsv4node *n_v4; /* extra V4 stuff */ 125 1.1.1.1.10.2 tls struct ucred *n_writecred; /* Cred. for putpages */ 126 1.1.1.1.10.2 tls }; 127 1.1.1.1.10.2 tls 128 1.1.1.1.10.2 tls #define n_atim n_un1.nf_atim 129 1.1.1.1.10.2 tls #define n_mtim n_un2.nf_mtim 130 1.1.1.1.10.2 tls #define n_sillyrename n_un3.nf_silly 131 1.1.1.1.10.2 tls #define n_cookieverf n_un1.nd_cookieverf 132 1.1.1.1.10.2 tls #define n4_cookieverf n_un1.nd4_cookieverf 133 1.1.1.1.10.2 tls #define n_direofoffset n_un2.nd_direof 134 1.1.1.1.10.2 tls #define n_cookies n_un3.nd_cook 135 1.1.1.1.10.2 tls 136 1.1.1.1.10.2 tls /* 137 1.1.1.1.10.2 tls * Flags for n_flag 138 1.1.1.1.10.2 tls */ 139 1.1.1.1.10.2 tls #define NDIRCOOKIELK 0x00000001 /* Lock to serialize access to directory cookies */ 140 1.1.1.1.10.2 tls #define NFSYNCWAIT 0x00000002 /* fsync waiting for all directio async 141 1.1.1.1.10.2 tls writes to drain */ 142 1.1.1.1.10.2 tls #define NMODIFIED 0x00000004 /* Might have a modified buffer in bio */ 143 1.1.1.1.10.2 tls #define NWRITEERR 0x00000008 /* Flag write errors so close will know */ 144 1.1.1.1.10.2 tls #define NCREATED 0x00000010 /* Opened by nfs_create() */ 145 1.1.1.1.10.2 tls #define NTRUNCATE 0x00000020 /* Opened by nfs_setattr() */ 146 1.1.1.1.10.2 tls #define NSIZECHANGED 0x00000040 /* File size has changed: need cache inval */ 147 1.1.1.1.10.2 tls #define NNONCACHE 0x00000080 /* Node marked as noncacheable */ 148 1.1.1.1.10.2 tls #define NACC 0x00000100 /* Special file accessed */ 149 1.1.1.1.10.2 tls #define NUPD 0x00000200 /* Special file updated */ 150 1.1.1.1.10.2 tls #define NCHG 0x00000400 /* Special file times changed */ 151 1.1.1.1.10.2 tls #define NDELEGMOD 0x00000800 /* Modified delegation */ 152 1.1.1.1.10.2 tls #define NDELEGRECALL 0x00001000 /* Recall in progress */ 153 1.1.1.1.10.2 tls #define NREMOVEINPROG 0x00002000 /* Remove in progress */ 154 1.1.1.1.10.2 tls #define NREMOVEWANT 0x00004000 /* Want notification that remove is done */ 155 1.1.1.1.10.2 tls #define NLOCK 0x00008000 /* Sleep lock the node */ 156 1.1.1.1.10.2 tls #define NLOCKWANT 0x00010000 /* Want the sleep lock */ 157 1.1.1.1.10.2 tls #define NNOLAYOUT 0x00020000 /* Can't get a layout for this file */ 158 1.1.1.1.10.2 tls #define NWRITEOPENED 0x00040000 /* Has been opened for writing */ 159 1.1.1.1.10.3 jdolecek #define NHASBEENLOCKED 0x00080000 /* Has been file locked. */ 160 1.1.1.1.10.2 tls 161 1.1.1.1.10.2 tls /* 162 1.1.1.1.10.2 tls * Convert between nfsnode pointers and vnode pointers 163 1.1.1.1.10.2 tls */ 164 1.1.1.1.10.2 tls #define VTONFS(vp) ((struct nfsnode *)(vp)->v_data) 165 1.1.1.1.10.2 tls #define NFSTOV(np) ((struct vnode *)(np)->n_vnode) 166 1.1.1.1.10.2 tls 167 1.1.1.1.10.2 tls #define NFS_TIMESPEC_COMPARE(T1, T2) (((T1)->tv_sec != (T2)->tv_sec) || ((T1)->tv_nsec != (T2)->tv_nsec)) 168 1.1.1.1.10.2 tls 169 1.1.1.1.10.2 tls #if defined(_KERNEL) 170 1.1.1.1.10.2 tls 171 1.1.1.1.10.2 tls /* 172 1.1.1.1.10.2 tls * Prototypes for NFS vnode operations 173 1.1.1.1.10.2 tls */ 174 1.1.1.1.10.2 tls int ncl_getpages(struct vop_getpages_args *); 175 1.1.1.1.10.2 tls int ncl_putpages(struct vop_putpages_args *); 176 1.1.1.1.10.2 tls int ncl_write(struct vop_write_args *); 177 1.1.1.1.10.2 tls int ncl_inactive(struct vop_inactive_args *); 178 1.1.1.1.10.2 tls int ncl_reclaim(struct vop_reclaim_args *); 179 1.1.1.1.10.2 tls 180 1.1.1.1.10.2 tls /* other stuff */ 181 1.1.1.1.10.2 tls int ncl_removeit(struct sillyrename *, struct vnode *); 182 1.1.1.1.10.2 tls int ncl_nget(struct mount *, u_int8_t *, int, struct nfsnode **, int); 183 1.1.1.1.10.2 tls nfsuint64 *ncl_getcookie(struct nfsnode *, off_t, int); 184 1.1.1.1.10.2 tls void ncl_invaldir(struct vnode *); 185 1.1.1.1.10.2 tls int ncl_upgrade_vnlock(struct vnode *); 186 1.1.1.1.10.2 tls void ncl_downgrade_vnlock(struct vnode *, int); 187 1.1.1.1.10.2 tls void ncl_dircookie_lock(struct nfsnode *); 188 1.1.1.1.10.2 tls void ncl_dircookie_unlock(struct nfsnode *); 189 1.1.1.1.10.2 tls 190 1.1.1.1.10.2 tls #endif /* _KERNEL */ 191 1.1.1.1.10.2 tls 192 1.1.1.1.10.2 tls #endif /* _NFSCLIENT_NFSNODE_H_ */ 193
Indexes created Fri Oct 03 02:09:57 GMT 2025