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nfs_var.h revision 1.53
      1 /*	$NetBSD: nfs_var.h,v 1.53 2005/09/25 21:57:40 jmmv Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1996 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Christos Zoulas.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  * XXX needs <nfs/rpcv2.h> and <nfs/nfs.h> because of typedefs
     41  */
     42 
     43 #ifdef _KERNEL
     44 #include <sys/mallocvar.h>
     45 #include <sys/pool.h>
     46 
     47 MALLOC_DECLARE(M_NFSREQ);
     48 MALLOC_DECLARE(M_NFSMNT);
     49 MALLOC_DECLARE(M_NFSUID);
     50 MALLOC_DECLARE(M_NFSD);
     51 MALLOC_DECLARE(M_NFSDIROFF);
     52 MALLOC_DECLARE(M_NFSBIGFH);
     53 MALLOC_DECLARE(M_NQLEASE);
     54 extern struct pool nfs_srvdesc_pool;
     55 
     56 struct vnode;
     57 struct uio;
     58 struct ucred;
     59 struct proc;
     60 struct buf;
     61 struct nfs_diskless;
     62 struct sockaddr_in;
     63 struct nfs_dlmount;
     64 struct vnode;
     65 struct nfsd;
     66 struct mbuf;
     67 struct file;
     68 struct nqlease;
     69 struct nqhost;
     70 struct nfssvc_sock;
     71 struct nfsmount;
     72 struct socket;
     73 struct nfsreq;
     74 struct vattr;
     75 struct nameidata;
     76 struct nfsnode;
     77 struct sillyrename;
     78 struct componentname;
     79 struct nfsd_srvargs;
     80 struct nfsrv_descript;
     81 struct nfs_fattr;
     82 struct nfsdircache;
     83 union nethostaddr;
     84 
     85 /* nfs_bio.c */
     86 int nfs_bioread __P((struct vnode *, struct uio *, int, struct ucred *, int));
     87 struct buf *nfs_getcacheblk __P((struct vnode *, daddr_t, int, struct proc *));
     88 int nfs_vinvalbuf __P((struct vnode *, int, struct ucred *, struct proc *,
     89 		       int));
     90 int nfs_flushstalebuf __P((struct vnode *, struct ucred *, struct proc *, int));
     91 #define	NFS_FLUSHSTALEBUF_MYWRITE	1	/* assume writes are ours */
     92 int nfs_asyncio __P((struct buf *));
     93 int nfs_doio __P((struct buf *));
     94 
     95 /* nfs_boot.c */
     96 /* see nfsdiskless.h */
     97 
     98 /* nfs_kq.c */
     99 void nfs_kqinit __P((void));
    100 
    101 /* nfs_node.c */
    102 void nfs_nhinit __P((void));
    103 void nfs_nhreinit __P((void));
    104 void nfs_nhdone __P((void));
    105 int nfs_nget1 __P((struct mount *, nfsfh_t *, int, struct nfsnode **, int));
    106 #define	nfs_nget(mp, fhp, fhsize, npp) \
    107 	nfs_nget1((mp), (fhp), (fhsize), (npp), 0)
    108 
    109 /* nfs_vnops.c */
    110 int nfs_null __P((struct vnode *, struct ucred *, struct proc *));
    111 int nfs_setattrrpc __P((struct vnode *, struct vattr *, struct ucred *,
    112 			struct proc *));
    113 int nfs_readlinkrpc __P((struct vnode *, struct uio *, struct ucred *));
    114 int nfs_readrpc __P((struct vnode *, struct uio *));
    115 int nfs_writerpc __P((struct vnode *, struct uio *, int *, boolean_t,
    116 			boolean_t *));
    117 int nfs_mknodrpc __P((struct vnode *, struct vnode **, struct componentname *,
    118 		      struct vattr *));
    119 int nfs_removeit __P((struct sillyrename *));
    120 int nfs_removerpc __P((struct vnode *, const char *, int, struct ucred *,
    121 		       struct proc *));
    122 int nfs_renameit __P((struct vnode *, struct componentname *,
    123 		      struct sillyrename *));
    124 int nfs_renamerpc __P((struct vnode *, const char *, int, struct vnode *,
    125 		       const char *, int, struct ucred *, struct proc *));
    126 int nfs_readdirrpc __P((struct vnode *, struct uio *, struct ucred *));
    127 int nfs_readdirplusrpc __P((struct vnode *, struct uio *, struct ucred *));
    128 int nfs_sillyrename __P((struct vnode *, struct vnode *,
    129 			 struct componentname *));
    130 int nfs_lookitup __P((struct vnode *, const char *, int, struct ucred *,
    131 		      struct proc *, struct nfsnode **));
    132 int nfs_commit __P((struct vnode *, off_t, uint32_t, struct proc *));
    133 int nfs_flush __P((struct vnode *, struct ucred *, int, struct proc *, int));
    134 
    135 /* nfs_nqlease.c */
    136 void nqnfs_lease_updatetime __P((int));
    137 void nqnfs_clientlease __P((struct nfsmount *, struct nfsnode *, int, int,
    138 			    time_t, u_quad_t));
    139 void nqsrv_locklease __P((struct nqlease *));
    140 void nqsrv_unlocklease __P((struct nqlease *));
    141 int nqsrv_getlease __P((struct vnode *, u_int32_t *, int, struct nfssvc_sock *,
    142 			struct proc *, struct mbuf *, int *, u_quad_t *,
    143 			struct ucred *));
    144 void nqsrv_addhost __P((struct nqhost *, struct nfssvc_sock *, struct mbuf *));
    145 void nqsrv_instimeq __P((struct nqlease *, u_int32_t));
    146 int nqsrv_cmpnam __P((struct nfssvc_sock *, struct mbuf *, struct nqhost *));
    147 void nqsrv_send_eviction __P((struct vnode *, struct nqlease *,
    148 			      struct nfssvc_sock *, struct mbuf *,
    149 			      struct ucred *, struct proc *));
    150 void nqsrv_waitfor_expiry __P((struct nqlease *));
    151 void nqnfs_serverd __P((void));
    152 int nqnfsrv_getlease __P((struct nfsrv_descript *, struct nfssvc_sock *,
    153 			  struct proc *, struct mbuf **));
    154 int nqnfsrv_vacated __P((struct nfsrv_descript *, struct nfssvc_sock *,
    155 			 struct proc *, struct mbuf **));
    156 int nqnfs_getlease __P((struct vnode *, int, struct ucred *, struct proc *));
    157 int nqnfs_vacated __P((struct vnode *, struct ucred *, struct proc *));
    158 int nqnfs_callback __P((struct nfsmount *, struct mbuf *, struct mbuf *,
    159 			caddr_t));
    160 
    161 /* nfs_serv.c */
    162 int nfsrv3_access __P((struct nfsrv_descript *, struct nfssvc_sock *,
    163 		       struct proc *, struct mbuf **));
    164 int nfsrv_getattr __P((struct nfsrv_descript *, struct nfssvc_sock *,
    165 		       struct proc *, struct mbuf **));
    166 int nfsrv_setattr __P((struct nfsrv_descript *, struct nfssvc_sock *,
    167 		       struct proc *, struct mbuf **));
    168 int nfsrv_lookup __P((struct nfsrv_descript *, struct nfssvc_sock *,
    169 		      struct proc *, struct mbuf **));
    170 int nfsrv_readlink __P((struct nfsrv_descript *, struct nfssvc_sock *,
    171 			struct proc *, struct mbuf **));
    172 int nfsrv_read __P((struct nfsrv_descript *, struct nfssvc_sock *,
    173 		    struct proc *, struct mbuf **));
    174 int nfsrv_write __P((struct nfsrv_descript *, struct nfssvc_sock *,
    175 		     struct proc *, struct mbuf **));
    176 int nfsrv_writegather __P((struct nfsrv_descript **, struct nfssvc_sock *,
    177 			   struct proc *, struct mbuf **));
    178 void nfsrvw_coalesce __P((struct nfsrv_descript *, struct nfsrv_descript *));
    179 int nfsrv_create __P((struct nfsrv_descript *, struct nfssvc_sock *,
    180 		      struct proc *, struct mbuf **));
    181 int nfsrv_mknod __P((struct nfsrv_descript *, struct nfssvc_sock *,
    182 		     struct proc *, struct mbuf **));
    183 int nfsrv_remove __P((struct nfsrv_descript *, struct nfssvc_sock *,
    184 		      struct proc *, struct mbuf **));
    185 int nfsrv_rename __P((struct nfsrv_descript *, struct nfssvc_sock *,
    186 		      struct proc *, struct mbuf **));
    187 int nfsrv_link __P((struct nfsrv_descript *, struct nfssvc_sock *,
    188 		    struct proc *, struct mbuf **));
    189 int nfsrv_symlink __P((struct nfsrv_descript *, struct nfssvc_sock *,
    190 		       struct proc *, struct mbuf **));
    191 int nfsrv_mkdir __P((struct nfsrv_descript *, struct nfssvc_sock *,
    192 		     struct proc *, struct mbuf **));
    193 int nfsrv_rmdir __P((struct nfsrv_descript *, struct nfssvc_sock *,
    194 		     struct proc *, struct mbuf **));
    195 int nfsrv_readdir __P((struct nfsrv_descript *, struct nfssvc_sock *,
    196 		       struct proc *, struct mbuf **));
    197 int nfsrv_readdirplus __P((struct nfsrv_descript *, struct nfssvc_sock *,
    198 			   struct proc *, struct mbuf **));
    199 int nfsrv_commit __P((struct nfsrv_descript *, struct nfssvc_sock *,
    200 		      struct proc *, struct mbuf **));
    201 int nfsrv_statfs __P((struct nfsrv_descript *, struct nfssvc_sock *,
    202 		      struct proc *, struct mbuf **));
    203 int nfsrv_fsinfo __P((struct nfsrv_descript *, struct nfssvc_sock *,
    204 		      struct proc *, struct mbuf **));
    205 int nfsrv_pathconf __P((struct nfsrv_descript *, struct nfssvc_sock *,
    206 		        struct proc *, struct mbuf **));
    207 int nfsrv_null __P((struct nfsrv_descript *, struct nfssvc_sock *,
    208 		    struct proc *, struct mbuf **));
    209 int nfsrv_noop __P((struct nfsrv_descript *, struct nfssvc_sock *,
    210 		    struct proc *, struct mbuf **));
    211 int nfsrv_access __P((struct vnode *, int, struct ucred *, int, struct proc *,
    212 		      int));
    213 
    214 /* nfs_socket.c */
    215 int nfs_connect __P((struct nfsmount *, struct nfsreq *, struct proc *));
    216 int nfs_reconnect __P((struct nfsreq *, struct proc *));
    217 void nfs_disconnect __P((struct nfsmount *));
    218 void nfs_safedisconnect __P((struct nfsmount *));
    219 int nfs_send __P((struct socket *, struct mbuf *, struct mbuf *,
    220 		  struct nfsreq *, struct proc *));
    221 int nfs_receive __P((struct nfsreq *, struct mbuf **, struct mbuf **,
    222 		     struct proc *));
    223 int nfs_reply __P((struct nfsreq *, struct proc *));
    224 int nfs_request __P((struct nfsnode *, struct mbuf *, int, struct proc *,
    225 		     struct ucred *, struct mbuf **, struct mbuf **,
    226 		     caddr_t *, int *));
    227 int nfs_rephead __P((int, struct nfsrv_descript *, struct nfssvc_sock *,
    228 		     int, int, u_quad_t *, struct mbuf **, struct mbuf **,			     caddr_t *));
    229 void nfs_timer __P((void *));
    230 int nfs_sigintr __P((struct nfsmount *, struct nfsreq *, struct proc *));
    231 int nfs_sndlock __P((int *, struct nfsreq *));
    232 void nfs_exit __P((struct proc *, void *));
    233 void nfs_sndunlock __P((int *));
    234 int nfs_rcvlock __P((struct nfsreq *));
    235 void nfs_rcvunlock __P((struct nfsmount *));
    236 int nfs_getreq __P((struct nfsrv_descript *, struct nfsd *, int));
    237 int nfs_msg __P((struct proc *, const char *, const char *));
    238 void nfsrv_rcv __P((struct socket *, caddr_t, int));
    239 int nfsrv_getstream __P((struct nfssvc_sock *, int));
    240 int nfsrv_dorec __P((struct nfssvc_sock *, struct nfsd *,
    241 		     struct nfsrv_descript **));
    242 void nfsrv_wakenfsd __P((struct nfssvc_sock *));
    243 
    244 /* nfs_srvcache.c */
    245 void nfsrv_initcache __P((void ));
    246 int nfsrv_getcache __P((struct nfsrv_descript *, struct nfssvc_sock *,
    247 			struct mbuf **));
    248 void nfsrv_updatecache __P((struct nfsrv_descript *, int, struct mbuf *));
    249 void nfsrv_cleancache __P((void));
    250 
    251 /* nfs_subs.c */
    252 struct mbuf *nfsm_reqh __P((struct nfsnode *, u_long, int, caddr_t *));
    253 struct mbuf *nfsm_rpchead __P((struct ucred *, int, int, int, int, char *, int,
    254 			       char *, struct mbuf *, int, struct mbuf **,
    255 			       u_int32_t *));
    256 int nfsm_mbuftouio __P((struct mbuf **, struct uio *, int, caddr_t *));
    257 int nfsm_uiotombuf __P((struct uio *, struct mbuf **, int, caddr_t *));
    258 int nfsm_disct __P((struct mbuf **, caddr_t *, int, int, caddr_t *));
    259 int nfs_adv __P((struct mbuf **, caddr_t *, int, int));
    260 int nfsm_strtmbuf __P((struct mbuf **, char **, const char *, long));
    261 u_long nfs_dirhash __P((off_t));
    262 void nfs_initdircache __P((struct vnode *));
    263 void nfs_initdirxlatecookie __P((struct vnode *));
    264 struct nfsdircache *nfs_searchdircache __P((struct vnode *, off_t, int, int *));
    265 struct nfsdircache *nfs_enterdircache __P((struct vnode *, off_t, off_t,						   int, daddr_t));
    266 void nfs_putdircache __P((struct nfsnode *, struct nfsdircache *));
    267 void nfs_invaldircache __P((struct vnode *, int));
    268 #define	NFS_INVALDIRCACHE_FORCE		1
    269 #define	NFS_INVALDIRCACHE_KEEPEOF	2
    270 void nfs_init __P((void));
    271 int nfsm_loadattrcache __P((struct vnode **, struct mbuf **, caddr_t *,
    272 			   struct vattr *, int flags));
    273 int nfs_loadattrcache __P((struct vnode **, struct nfs_fattr *,
    274 			   struct vattr *, int flags));
    275 int nfs_getattrcache __P((struct vnode *, struct vattr *));
    276 void nfs_delayedtruncate __P((struct vnode *));
    277 int nfs_check_wccdata __P((struct nfsnode *, const struct timespec *,
    278     struct timespec *, boolean_t));
    279 int nfs_namei __P((struct nameidata *, fhandle_t *, uint32_t,
    280 		   struct nfssvc_sock *, struct mbuf *, struct mbuf **,
    281 		   caddr_t *, struct vnode **, struct proc *, int, int));
    282 void nfs_zeropad __P((struct mbuf *, int, int));
    283 void nfsm_srvwcc __P((struct nfsrv_descript *, int, struct vattr *, int,
    284 		      struct vattr *, struct mbuf **, char **));
    285 void nfsm_srvpostopattr __P((struct nfsrv_descript *, int, struct vattr *,
    286 			     struct mbuf **, char **));
    287 void nfsm_srvfattr __P((struct nfsrv_descript *, struct vattr *,
    288 			struct nfs_fattr *));
    289 int nfsrv_fhtovp __P((fhandle_t *, int, struct vnode **, struct ucred *,
    290 		      struct nfssvc_sock *, struct mbuf *, int *, int, int));
    291 int nfs_ispublicfh __P((fhandle_t *));
    292 int netaddr_match __P((int, union nethostaddr *, struct mbuf *));
    293 
    294 /* flags for nfs_loadattrcache and friends */
    295 #define	NAC_NOTRUNC	1	/* don't truncate file size */
    296 
    297 void nfs_clearcommit __P((struct mount *));
    298 void nfs_merge_commit_ranges __P((struct vnode *));
    299 int nfs_in_committed_range __P((struct vnode *, off_t, off_t));
    300 int nfs_in_tobecommitted_range __P((struct vnode *, off_t, off_t));
    301 void nfs_add_committed_range __P((struct vnode *, off_t, off_t));
    302 void nfs_del_committed_range __P((struct vnode *, off_t, off_t));
    303 void nfs_add_tobecommitted_range __P((struct vnode *, off_t, off_t));
    304 void nfs_del_tobecommitted_range __P((struct vnode *, off_t, off_t));
    305 
    306 int nfsrv_errmap __P((struct nfsrv_descript *, int));
    307 void nfsrvw_sort __P((gid_t *, int));
    308 void nfsrv_setcred __P((struct ucred *, struct ucred *));
    309 void nfs_cookieheuristic __P((struct vnode *, int *, struct proc *,
    310 			      struct ucred *));
    311 
    312 u_int32_t nfs_getxid __P((void));
    313 void nfs_renewxid __P((struct nfsreq *));
    314 
    315 /* nfs_syscalls.c */
    316 int sys_getfh __P((struct lwp *, void *, register_t *));
    317 int sys_nfssvc __P((struct lwp *, void *, register_t *));
    318 int nfssvc_addsock __P((struct file *, struct mbuf *));
    319 int nfssvc_nfsd __P((struct nfsd_srvargs *, caddr_t, struct lwp *));
    320 void nfsrv_zapsock __P((struct nfssvc_sock *));
    321 void nfsrv_slpderef __P((struct nfssvc_sock *));
    322 void nfsrv_init __P((int));
    323 int nfssvc_iod __P((struct lwp *));
    324 void nfs_iodinit __P((void));
    325 void start_nfsio __P((void *));
    326 void nfs_getset_niothreads __P((int));
    327 int nfs_getauth __P((struct nfsmount *, struct nfsreq *, struct ucred *,
    328 		     char **, int *, char *, int *, NFSKERBKEY_T));
    329 int nfs_getnickauth __P((struct nfsmount *, struct ucred *, char **, int *,
    330 			 char *, int));
    331 int nfs_savenickauth __P((struct nfsmount *, struct ucred *, int, NFSKERBKEY_T,
    332 			  struct mbuf **, char **, struct mbuf *));
    333 
    334 /* nfs_export.c */
    335 extern struct nfs_public nfs_pub;
    336 int mountd_set_exports_list(const struct mountd_exports_list *, struct proc *);
    337 int nfs_check_export(struct mount *, struct mbuf *, int *, struct ucred **);
    338 #ifdef COMPAT_30
    339 int nfs_update_exports_30(struct mount *, const char *, void *, struct proc *);
    340 #endif
    341 #endif /* _KERNEL */
    342