nfs_var.h revision 1.78.4.1 1 /* $NetBSD: nfs_var.h,v 1.78.4.1 2008/04/27 12:52:50 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_request(struct nfsnode *, struct mbuf *, int, struct lwp *,
180 kauth_cred_t, struct mbuf **, struct mbuf **, char **, int *);
181 int nfs_rephead(int, struct nfsrv_descript *, struct nfssvc_sock *,
182 int, int, u_quad_t *, struct mbuf **, struct mbuf **, char **);
183 void nfs_timer(void *);
184 void nfs_timer_init(void);
185 void nfs_timer_start(void);
186 int nfs_sigintr(struct nfsmount *, struct nfsreq *, struct lwp *);
187 int nfs_getreq(struct nfsrv_descript *, struct nfsd *, int);
188 int nfs_msg(struct lwp *, const char *, const char *);
189 void nfsrv_soupcall(struct socket *, void *, int);
190 void nfsrv_rcv(struct nfssvc_sock *);
191 int nfsrv_getstream(struct nfssvc_sock *, int);
192 int nfsrv_dorec(struct nfssvc_sock *, struct nfsd *, struct nfsrv_descript **,
193 bool *);
194 void nfsrv_wakenfsd(struct nfssvc_sock *);
195 int nfsdsock_lock(struct nfssvc_sock *, bool);
196 void nfsdsock_unlock(struct nfssvc_sock *);
197 int nfsdsock_drain(struct nfssvc_sock *);
198 int nfsdsock_sendreply(struct nfssvc_sock *, struct nfsrv_descript *);
199 void nfsdreq_init(void);
200 struct nfsrv_descript *nfsdreq_alloc(void);
201 void nfsdreq_free(struct nfsrv_descript *);
202
203 void nfsdsock_setbits(struct nfssvc_sock *, int);
204 void nfsdsock_clearbits(struct nfssvc_sock *, int);
205 bool nfsdsock_testbits(struct nfssvc_sock *, int);
206
207 /* nfs_srvcache.c */
208 void nfsrv_initcache(void);
209 int nfsrv_getcache(struct nfsrv_descript *, struct nfssvc_sock *,
210 struct mbuf **);
211 void nfsrv_updatecache(struct nfsrv_descript *, int, struct mbuf *);
212 void nfsrv_cleancache(void);
213
214 /* nfs_subs.c */
215 struct mbuf *nfsm_reqh(struct nfsnode *, u_long, int, char **);
216 struct mbuf *nfsm_rpchead(kauth_cred_t, int, int, int, int, char *, int,
217 char *, struct mbuf *, int, struct mbuf **, u_int32_t *);
218 int nfsm_mbuftouio(struct mbuf **, struct uio *, int, char **);
219 int nfsm_uiotombuf(struct uio *, struct mbuf **, int, char **);
220 int nfsm_disct(struct mbuf **, char **, int, int, char **);
221 int nfs_adv(struct mbuf **, char **, int, int);
222 int nfsm_strtmbuf(struct mbuf **, char **, const char *, long);
223 u_long nfs_dirhash(off_t);
224 void nfs_initdircache(struct vnode *);
225 void nfs_initdirxlatecookie(struct vnode *);
226 struct nfsdircache *nfs_searchdircache(struct vnode *, off_t, int, int *);
227 struct nfsdircache *nfs_enterdircache(struct vnode *, off_t, off_t, int,
228 daddr_t);
229 void nfs_putdircache(struct nfsnode *, struct nfsdircache *);
230 void nfs_invaldircache(struct vnode *, int);
231 #define NFS_INVALDIRCACHE_FORCE 1
232 #define NFS_INVALDIRCACHE_KEEPEOF 2
233 void nfs_init __P((void));
234 int nfsm_loadattrcache(struct vnode **, struct mbuf **, char **,
235 struct vattr *, int flags);
236 int nfs_loadattrcache(struct vnode **, struct nfs_fattr *, struct vattr *,
237 int flags);
238 int nfs_getattrcache(struct vnode *, struct vattr *);
239 void nfs_delayedtruncate(struct vnode *);
240 int nfs_check_wccdata(struct nfsnode *, const struct timespec *,
241 struct timespec *, bool);
242 int nfs_namei(struct nameidata *, nfsrvfh_t *, uint32_t, struct nfssvc_sock *,
243 struct mbuf *, struct mbuf **, char **, struct vnode **, struct lwp *,
244 int, int);
245 void nfs_zeropad(struct mbuf *, int, int);
246 void nfsm_srvwcc(struct nfsrv_descript *, int, struct vattr *, int,
247 struct vattr *, struct mbuf **, char **);
248 void nfsm_srvpostopattr(struct nfsrv_descript *, int, struct vattr *,
249 struct mbuf **, char **);
250 void nfsm_srvfattr(struct nfsrv_descript *, struct vattr *, struct nfs_fattr *);
251 int nfsrv_fhtovp(nfsrvfh_t *, int, struct vnode **, kauth_cred_t,
252 struct nfssvc_sock *, struct mbuf *, int *, int, int);
253 int nfs_ispublicfh __P((const nfsrvfh_t *));
254 int netaddr_match(int, union nethostaddr *, struct mbuf *);
255 time_t nfs_attrtimeo(struct nfsmount *, struct nfsnode *);
256
257 /* flags for nfs_loadattrcache and friends */
258 #define NAC_NOTRUNC 1 /* don't truncate file size */
259
260 void nfs_clearcommit(struct mount *);
261 void nfs_merge_commit_ranges(struct vnode *);
262 int nfs_in_committed_range(struct vnode *, off_t, off_t);
263 int nfs_in_tobecommitted_range(struct vnode *, off_t, off_t);
264 void nfs_add_committed_range(struct vnode *, off_t, off_t);
265 void nfs_del_committed_range(struct vnode *, off_t, off_t);
266 void nfs_add_tobecommitted_range(struct vnode *, off_t, off_t);
267 void nfs_del_tobecommitted_range(struct vnode *, off_t, off_t);
268
269 int nfsrv_errmap(struct nfsrv_descript *, int);
270 void nfs_cookieheuristic(struct vnode *, int *, struct lwp *, kauth_cred_t);
271
272 u_int32_t nfs_getxid(void);
273 void nfs_renewxid(struct nfsreq *);
274
275 int nfsrv_composefh(struct vnode *, nfsrvfh_t *, bool);
276 int nfsrv_comparefh(const nfsrvfh_t *, const nfsrvfh_t *);
277 void nfsrv_copyfh(nfsrvfh_t *, const nfsrvfh_t *);
278
279 /* nfs_syscalls.c */
280 struct sys_getfh_args;
281 struct sys_nfssvc_args;
282 int sys_getfh(struct lwp *, const struct sys_getfh_args *, register_t *);
283 int sys_nfssvc(struct lwp *, const struct sys_nfssvc_args *, register_t *);
284 int nfssvc_addsock(struct file *, struct mbuf *);
285 int nfssvc_nfsd(struct nfsd_srvargs *, void *, struct lwp *);
286 void nfsrv_zapsock(struct nfssvc_sock *);
287 void nfsrv_slpderef(struct nfssvc_sock *);
288 void nfsrv_init(int);
289 void nfs_iodinit(void);
290 int nfs_set_niothreads(int);
291 int nfs_getauth(struct nfsmount *, struct nfsreq *, kauth_cred_t, char **,
292 int *, char *, int *, NFSKERBKEY_T);
293 int nfs_getnickauth(struct nfsmount *, kauth_cred_t, char **, int *, char *,
294 int);
295 int nfs_savenickauth(struct nfsmount *, kauth_cred_t, int, NFSKERBKEY_T,
296 struct mbuf **, char **, struct mbuf *);
297
298 /* nfs_export.c */
299 extern struct nfs_public nfs_pub;
300 int mountd_set_exports_list(const struct mountd_exports_list *, struct lwp *);
301 int netexport_check(const fsid_t *, struct mbuf *, struct mount **, int *,
302 kauth_cred_t *);
303 void netexport_rdlock(void);
304 void netexport_rdunlock(void);
305 #ifdef COMPAT_30
306 int nfs_update_exports_30(struct mount *, const char *,
307 struct mnt_export_args30 *, struct lwp *);
308 #endif
309 #endif /* _KERNEL */
310