1 /* $NetBSD: nfs_var.h,v 1.77 2008/01/02 19:26:46 yamt 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_NFSD); 48 MALLOC_DECLARE(M_NFSDIROFF); 49 50 struct vnode; 51 struct uio; 52 struct proc; 53 struct buf; 54 struct nfs_diskless; 55 struct sockaddr_in; 56 struct nfs_dlmount; 57 struct vnode; 58 struct nfsd; 59 struct mbuf; 60 struct file; 61 struct nfssvc_sock; 62 struct nfsmount; 63 struct socket; 64 struct nfsreq; 65 struct vattr; 66 struct nameidata; 67 struct nfsnode; 68 struct sillyrename; 69 struct componentname; 70 struct nfsd_srvargs; 71 struct nfsrv_descript; 72 struct nfs_fattr; 73 struct nfsdircache; 74 union nethostaddr; 75 76 /* nfs_bio.c */ 77 int nfs_bioread(struct vnode *, struct uio *, int, kauth_cred_t, int); 78 struct buf *nfs_getcacheblk(struct vnode *, daddr_t, int, struct lwp *); 79 int nfs_vinvalbuf(struct vnode *, int, kauth_cred_t, struct lwp *, int); 80 int nfs_flushstalebuf(struct vnode *, kauth_cred_t, struct lwp *, int); 81 #define NFS_FLUSHSTALEBUF_MYWRITE 1 /* assume writes are ours */ 82 int nfs_asyncio(struct buf *); 83 int nfs_doio(struct buf *); 84 85 /* nfs_boot.c */ 86 /* see nfsdiskless.h */ 87 88 /* nfs_kq.c */ 89 void nfs_kqinit(void); 90 91 /* nfs_node.c */ 92 void nfs_nhinit(void); 93 void nfs_nhreinit(void); 94 void nfs_nhdone(void); 95 int nfs_nget1(struct mount *, nfsfh_t *, int, struct nfsnode **, int); 96 #define nfs_nget(mp, fhp, fhsize, npp) \ 97 nfs_nget1((mp), (fhp), (fhsize), (npp), 0) 98 99 /* nfs_vnops.c */ 100 int nfs_null(struct vnode *, kauth_cred_t, struct lwp *); 101 int nfs_setattrrpc(struct vnode *, struct vattr *, kauth_cred_t, struct lwp *); 102 int nfs_readlinkrpc(struct vnode *, struct uio *, kauth_cred_t); 103 int nfs_readrpc(struct vnode *, struct uio *); 104 int nfs_writerpc(struct vnode *, struct uio *, int *, bool, bool *); 105 int nfs_mknodrpc(struct vnode *, struct vnode **, struct componentname *, 106 struct vattr *); 107 int nfs_removeit(struct sillyrename *); 108 int nfs_removerpc(struct vnode *, const char *, int, kauth_cred_t, 109 struct lwp *); 110 int nfs_renameit(struct vnode *, struct componentname *, struct sillyrename *); 111 int nfs_renamerpc(struct vnode *, const char *, int, struct vnode *, 112 const char *, int, kauth_cred_t, struct lwp *); 113 int nfs_readdirrpc(struct vnode *, struct uio *, kauth_cred_t); 114 int nfs_readdirplusrpc(struct vnode *, struct uio *, kauth_cred_t); 115 int nfs_sillyrename(struct vnode *, struct vnode *, struct componentname *, 116 bool); 117 int nfs_lookitup(struct vnode *, const char *, int, kauth_cred_t, 118 struct lwp *, struct nfsnode **); 119 int nfs_commit(struct vnode *, off_t, uint32_t, struct lwp *); 120 int nfs_flush(struct vnode *, kauth_cred_t, int, struct lwp *, int); 121 122 /* nfs_serv.c */ 123 int nfsrv3_access(struct nfsrv_descript *, struct nfssvc_sock *, 124 struct lwp *, struct mbuf **); 125 int nfsrv_getattr(struct nfsrv_descript *, struct nfssvc_sock *, 126 struct lwp *, struct mbuf **); 127 int nfsrv_setattr(struct nfsrv_descript *, struct nfssvc_sock *, 128 struct lwp *, struct mbuf **); 129 int nfsrv_lookup(struct nfsrv_descript *, struct nfssvc_sock *, 130 struct lwp *, struct mbuf **); 131 int nfsrv_readlink(struct nfsrv_descript *, struct nfssvc_sock *, 132 struct lwp *, struct mbuf **); 133 int nfsrv_read(struct nfsrv_descript *, struct nfssvc_sock *, 134 struct lwp *, struct mbuf **); 135 int nfsrv_write(struct nfsrv_descript *, struct nfssvc_sock *, 136 struct lwp *, struct mbuf **); 137 int nfsrv_writegather(struct nfsrv_descript **, struct nfssvc_sock *, 138 struct lwp *, struct mbuf **); 139 void nfsrvw_coalesce(struct nfsrv_descript *, struct nfsrv_descript *); 140 int nfsrv_create(struct nfsrv_descript *, struct nfssvc_sock *, 141 struct lwp *, struct mbuf **); 142 int nfsrv_mknod(struct nfsrv_descript *, struct nfssvc_sock *, 143 struct lwp *, struct mbuf **); 144 int nfsrv_remove(struct nfsrv_descript *, struct nfssvc_sock *, 145 struct lwp *, struct mbuf **); 146 int nfsrv_rename(struct nfsrv_descript *, struct nfssvc_sock *, 147 struct lwp *, struct mbuf **); 148 int nfsrv_link(struct nfsrv_descript *, struct nfssvc_sock *, 149 struct lwp *, struct mbuf **); 150 int nfsrv_symlink(struct nfsrv_descript *, struct nfssvc_sock *, 151 struct lwp *, struct mbuf **); 152 int nfsrv_mkdir(struct nfsrv_descript *, struct nfssvc_sock *, 153 struct lwp *, struct mbuf **); 154 int nfsrv_rmdir(struct nfsrv_descript *, struct nfssvc_sock *, 155 struct lwp *, struct mbuf **); 156 int nfsrv_readdir(struct nfsrv_descript *, struct nfssvc_sock *, 157 struct lwp *, struct mbuf **); 158 int nfsrv_readdirplus(struct nfsrv_descript *, struct nfssvc_sock *, 159 struct lwp *, struct mbuf **); 160 int nfsrv_commit(struct nfsrv_descript *, struct nfssvc_sock *, 161 struct lwp *, struct mbuf **); 162 int nfsrv_statfs(struct nfsrv_descript *, struct nfssvc_sock *, 163 struct lwp *, struct mbuf **); 164 int nfsrv_fsinfo(struct nfsrv_descript *, struct nfssvc_sock *, 165 struct lwp *, struct mbuf **); 166 int nfsrv_pathconf(struct nfsrv_descript *, struct nfssvc_sock *, 167 struct lwp *, struct mbuf **); 168 int nfsrv_null(struct nfsrv_descript *, struct nfssvc_sock *, 169 struct lwp *, struct mbuf **); 170 int nfsrv_noop(struct nfsrv_descript *, struct nfssvc_sock *, 171 struct lwp *, struct mbuf **); 172 int nfsrv_access(struct vnode *, int, kauth_cred_t, int, struct lwp *, int); 173 174 /* nfs_socket.c */ 175 int nfs_connect(struct nfsmount *, struct nfsreq *, struct lwp *); 176 int nfs_reconnect(struct nfsreq *); 177 void nfs_disconnect(struct nfsmount *); 178 void nfs_safedisconnect(struct nfsmount *); 179 int nfs_send(struct socket *, struct mbuf *, struct mbuf *, struct nfsreq *, 180 struct lwp *); 181 int nfs_receive(struct nfsreq *, struct mbuf **, struct mbuf **, struct lwp *); 182 int nfs_reply(struct nfsreq *, struct lwp *); 183 int nfs_request(struct nfsnode *, struct mbuf *, int, struct lwp *, 184 kauth_cred_t, struct mbuf **, struct mbuf **, char **, int *); 185 int nfs_rephead(int, struct nfsrv_descript *, struct nfssvc_sock *, 186 int, int, u_quad_t *, struct mbuf **, struct mbuf **, char **); 187 void nfs_timer(void *); 188 void nfs_timer_init(void); 189 void nfs_timer_start(void); 190 int nfs_sigintr(struct nfsmount *, struct nfsreq *, struct lwp *); 191 int nfs_getreq(struct nfsrv_descript *, struct nfsd *, int); 192 int nfs_msg(struct lwp *, const char *, const char *); 193 void nfsrv_soupcall(struct socket *, void *, int); 194 void nfsrv_rcv(struct nfssvc_sock *); 195 int nfsrv_getstream(struct nfssvc_sock *, int); 196 int nfsrv_dorec(struct nfssvc_sock *, struct nfsd *, struct nfsrv_descript **, 197 bool *); 198 void nfsrv_wakenfsd(struct nfssvc_sock *); 199 int nfsdsock_lock(struct nfssvc_sock *, bool); 200 void nfsdsock_unlock(struct nfssvc_sock *); 201 int nfsdsock_drain(struct nfssvc_sock *); 202 int nfsdsock_sendreply(struct nfssvc_sock *, struct nfsrv_descript *); 203 void nfsdreq_init(void); 204 struct nfsrv_descript *nfsdreq_alloc(void); 205 void nfsdreq_free(struct nfsrv_descript *); 206 207 void nfsdsock_setbits(struct nfssvc_sock *, int); 208 void nfsdsock_clearbits(struct nfssvc_sock *, int); 209 bool nfsdsock_testbits(struct nfssvc_sock *, int); 210 211 /* nfs_srvcache.c */ 212 void nfsrv_initcache(void); 213 int nfsrv_getcache(struct nfsrv_descript *, struct nfssvc_sock *, 214 struct mbuf **); 215 void nfsrv_updatecache(struct nfsrv_descript *, int, struct mbuf *); 216 void nfsrv_cleancache(void); 217 218 /* nfs_subs.c */ 219 struct mbuf *nfsm_reqh(struct nfsnode *, u_long, int, char **); 220 struct mbuf *nfsm_rpchead(kauth_cred_t, int, int, int, int, char *, int, 221 char *, struct mbuf *, int, struct mbuf **, u_int32_t *); 222 int nfsm_mbuftouio(struct mbuf **, struct uio *, int, char **); 223 int nfsm_uiotombuf(struct uio *, struct mbuf **, int, char **); 224 int nfsm_disct(struct mbuf **, char **, int, int, char **); 225 int nfs_adv(struct mbuf **, char **, int, int); 226 int nfsm_strtmbuf(struct mbuf **, char **, const char *, long); 227 u_long nfs_dirhash(off_t); 228 void nfs_initdircache(struct vnode *); 229 void nfs_initdirxlatecookie(struct vnode *); 230 struct nfsdircache *nfs_searchdircache(struct vnode *, off_t, int, int *); 231 struct nfsdircache *nfs_enterdircache(struct vnode *, off_t, off_t, int, 232 daddr_t); 233 void nfs_putdircache(struct nfsnode *, struct nfsdircache *); 234 void nfs_invaldircache(struct vnode *, int); 235 #define NFS_INVALDIRCACHE_FORCE 1 236 #define NFS_INVALDIRCACHE_KEEPEOF 2 237 void nfs_init __P((void)); 238 int nfsm_loadattrcache(struct vnode **, struct mbuf **, char **, 239 struct vattr *, int flags); 240 int nfs_loadattrcache(struct vnode **, struct nfs_fattr *, struct vattr *, 241 int flags); 242 int nfs_getattrcache(struct vnode *, struct vattr *); 243 void nfs_delayedtruncate(struct vnode *); 244 int nfs_check_wccdata(struct nfsnode *, const struct timespec *, 245 struct timespec *, bool); 246 int nfs_namei(struct nameidata *, nfsrvfh_t *, uint32_t, struct nfssvc_sock *, 247 struct mbuf *, struct mbuf **, char **, struct vnode **, struct lwp *, 248 int, int); 249 void nfs_zeropad(struct mbuf *, int, int); 250 void nfsm_srvwcc(struct nfsrv_descript *, int, struct vattr *, int, 251 struct vattr *, struct mbuf **, char **); 252 void nfsm_srvpostopattr(struct nfsrv_descript *, int, struct vattr *, 253 struct mbuf **, char **); 254 void nfsm_srvfattr(struct nfsrv_descript *, struct vattr *, struct nfs_fattr *); 255 int nfsrv_fhtovp(nfsrvfh_t *, int, struct vnode **, kauth_cred_t, 256 struct nfssvc_sock *, struct mbuf *, int *, int, int); 257 int nfs_ispublicfh __P((const nfsrvfh_t *)); 258 int netaddr_match(int, union nethostaddr *, struct mbuf *); 259 time_t nfs_attrtimeo(struct nfsmount *, struct nfsnode *); 260 261 /* flags for nfs_loadattrcache and friends */ 262 #define NAC_NOTRUNC 1 /* don't truncate file size */ 263 264 void nfs_clearcommit(struct mount *); 265 void nfs_merge_commit_ranges(struct vnode *); 266 int nfs_in_committed_range(struct vnode *, off_t, off_t); 267 int nfs_in_tobecommitted_range(struct vnode *, off_t, off_t); 268 void nfs_add_committed_range(struct vnode *, off_t, off_t); 269 void nfs_del_committed_range(struct vnode *, off_t, off_t); 270 void nfs_add_tobecommitted_range(struct vnode *, off_t, off_t); 271 void nfs_del_tobecommitted_range(struct vnode *, off_t, off_t); 272 273 int nfsrv_errmap(struct nfsrv_descript *, int); 274 void nfs_cookieheuristic(struct vnode *, int *, struct lwp *, kauth_cred_t); 275 276 u_int32_t nfs_getxid(void); 277 void nfs_renewxid(struct nfsreq *); 278 279 int nfsrv_composefh(struct vnode *, nfsrvfh_t *, bool); 280 int nfsrv_comparefh(const nfsrvfh_t *, const nfsrvfh_t *); 281 void nfsrv_copyfh(nfsrvfh_t *, const nfsrvfh_t *); 282 283 /* nfs_syscalls.c */ 284 struct sys_getfh_args; 285 struct sys_nfssvc_args; 286 int sys_getfh(struct lwp *, const struct sys_getfh_args *, register_t *); 287 int sys_nfssvc(struct lwp *, const struct sys_nfssvc_args *, register_t *); 288 int nfssvc_addsock(struct file *, struct mbuf *); 289 int nfssvc_nfsd(struct nfsd_srvargs *, void *, struct lwp *); 290 void nfsrv_zapsock(struct nfssvc_sock *); 291 void nfsrv_slpderef(struct nfssvc_sock *); 292 void nfsrv_init(int); 293 void nfs_iodinit(void); 294 int nfs_set_niothreads(int); 295 int nfs_getauth(struct nfsmount *, struct nfsreq *, kauth_cred_t, char **, 296 int *, char *, int *, NFSKERBKEY_T); 297 int nfs_getnickauth(struct nfsmount *, kauth_cred_t, char **, int *, char *, 298 int); 299 int nfs_savenickauth(struct nfsmount *, kauth_cred_t, int, NFSKERBKEY_T, 300 struct mbuf **, char **, struct mbuf *); 301 302 /* nfs_export.c */ 303 extern struct nfs_public nfs_pub; 304 int mountd_set_exports_list(const struct mountd_exports_list *, struct lwp *); 305 int netexport_check(const fsid_t *, struct mbuf *, struct mount **, int *, 306 kauth_cred_t *); 307 void netexport_rdlock(void); 308 void netexport_rdunlock(void); 309 #ifdef COMPAT_30 310 int nfs_update_exports_30(struct mount *, const char *, 311 struct mnt_export_args30 *, struct lwp *); 312 #endif 313 #endif /* _KERNEL */ 314