1 /* $NetBSD: nfs_prot_svc.c,v 1.1.1.3 2015/01/17 16:34:17 christos Exp $ */
2
3 /*
4 * Copyright (c) 1997-2014 Erez Zadok
5 * Copyright (c) 1989 Jan-Simon Pendry
6 * Copyright (c) 1989 Imperial College of Science, Technology & Medicine
7 * Copyright (c) 1989 The Regents of the University of California.
8 * All rights reserved.
9 *
10 * This code is derived from software contributed to Berkeley by
11 * Jan-Simon Pendry at Imperial College, London.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 *
37 *
38 * File: am-utils/hlfsd/nfs_prot_svc.c
39 *
40 */
41
42 #ifdef HAVE_CONFIG_H
43 # include <config.h>
44 #endif /* HAVE_CONFIG_H */
45 #include <am_defs.h>
46 #include <hlfsd.h>
47
48 /* EXTERNAL FUNCTIONS */
49 extern voidp nfsproc_null_2_svc(voidp, struct svc_req *);
50 extern nfsattrstat *nfsproc_getattr_2_svc(am_nfs_fh *, struct svc_req *);
51 extern nfsattrstat *nfsproc_setattr_2_svc(nfssattrargs *, struct svc_req *);
52 extern voidp nfsproc_root_2_svc(voidp, struct svc_req *);
53 extern nfsdiropres *nfsproc_lookup_2_svc(nfsdiropargs *, struct svc_req *);
54 extern nfsreadlinkres *nfsproc_readlink_2_svc(am_nfs_fh *, struct svc_req *);
55 extern nfsreadres *nfsproc_read_2_svc(nfsreadargs *, struct svc_req *);
56 extern voidp nfsproc_writecache_2_svc(voidp, struct svc_req *);
57 extern nfsattrstat *nfsproc_write_2_svc(nfswriteargs *, struct svc_req *);
58 extern nfsdiropres *nfsproc_create_2_svc(nfscreateargs *, struct svc_req *);
59 extern nfsstat *nfsproc_remove_2_svc(nfsdiropargs *, struct svc_req *);
60 extern nfsstat *nfsproc_rename_2_svc(nfsrenameargs *, struct svc_req *);
61 extern nfsstat *nfsproc_link_2_svc(nfslinkargs *, struct svc_req *);
62 extern nfsstat *nfsproc_symlink_2_svc(nfssymlinkargs *, struct svc_req *);
63 extern nfsdiropres *nfsproc_mkdir_2_svc(nfscreateargs *, struct svc_req *);
64 extern nfsstat *nfsproc_rmdir_2_svc(nfsdiropargs *, struct svc_req *);
65 extern nfsreaddirres *nfsproc_readdir_2_svc(nfsreaddirargs *, struct svc_req *);
66 extern nfsstatfsres *nfsproc_statfs_2_svc(am_nfs_fh *, struct svc_req *);
67
68 /* GLOBALS */
69 SVCXPRT *nfs_program_2_transp;
70
71 /* TYPEDEFS */
72 typedef char *(*nfssvcproc_t)(voidp, struct svc_req *);
73
74
75 void
nfs_program_2(struct svc_req * rqstp,SVCXPRT * transp)76 nfs_program_2(struct svc_req *rqstp, SVCXPRT *transp)
77 {
78 union {
79 am_nfs_fh nfsproc_getattr_2_arg;
80 nfssattrargs nfsproc_setattr_2_arg;
81 nfsdiropargs nfsproc_lookup_2_arg;
82 am_nfs_fh nfsproc_readlink_2_arg;
83 nfsreadargs nfsproc_read_2_arg;
84 nfswriteargs nfsproc_write_2_arg;
85 nfscreateargs nfsproc_create_2_arg;
86 nfsdiropargs nfsproc_remove_2_arg;
87 nfsrenameargs nfsproc_rename_2_arg;
88 nfslinkargs nfsproc_link_2_arg;
89 nfssymlinkargs nfsproc_symlink_2_arg;
90 nfscreateargs nfsproc_mkdir_2_arg;
91 nfsdiropargs nfsproc_rmdir_2_arg;
92 nfsreaddirargs nfsproc_readdir_2_arg;
93 am_nfs_fh nfsproc_statfs_2_arg;
94 } argument;
95 char *result;
96 xdrproc_t xdr_argument, xdr_result;
97 nfssvcproc_t local;
98
99 nfs_program_2_transp = NULL;
100
101 switch (rqstp->rq_proc) {
102
103 case NFSPROC_NULL:
104 xdr_argument = (xdrproc_t) xdr_void;
105 xdr_result = (xdrproc_t) xdr_void;
106 local = (nfssvcproc_t) nfsproc_null_2_svc;
107 break;
108
109 case NFSPROC_GETATTR:
110 xdr_argument = (xdrproc_t) xdr_nfs_fh;
111 xdr_result = (xdrproc_t) xdr_attrstat;
112 local = (nfssvcproc_t) nfsproc_getattr_2_svc;
113 break;
114
115 case NFSPROC_SETATTR:
116 xdr_argument = (xdrproc_t) xdr_sattrargs;
117 xdr_result = (xdrproc_t) xdr_attrstat;
118 local = (nfssvcproc_t) nfsproc_setattr_2_svc;
119 break;
120
121 case NFSPROC_ROOT:
122 xdr_argument = (xdrproc_t) xdr_void;
123 xdr_result = (xdrproc_t) xdr_void;
124 local = (nfssvcproc_t) nfsproc_root_2_svc;
125 break;
126
127 case NFSPROC_LOOKUP:
128 xdr_argument = (xdrproc_t) xdr_diropargs;
129 xdr_result = (xdrproc_t) xdr_diropres;
130 local = (nfssvcproc_t) nfsproc_lookup_2_svc;
131 /*
132 * Cheap way to pass transp down to afs_lookuppn so it can
133 * be stored in the am_node structure and later used for
134 * quick_reply().
135 */
136 nfs_program_2_transp = transp;
137 break;
138
139 case NFSPROC_READLINK:
140 xdr_argument = (xdrproc_t) xdr_nfs_fh;
141 xdr_result = (xdrproc_t) xdr_readlinkres;
142 local = (nfssvcproc_t) nfsproc_readlink_2_svc;
143 break;
144
145 case NFSPROC_READ:
146 xdr_argument = (xdrproc_t) xdr_readargs;
147 xdr_result = (xdrproc_t) xdr_readres;
148 local = (nfssvcproc_t) nfsproc_read_2_svc;
149 break;
150
151 case NFSPROC_WRITECACHE:
152 xdr_argument = (xdrproc_t) xdr_void;
153 xdr_result = (xdrproc_t) xdr_void;
154 local = (nfssvcproc_t) nfsproc_writecache_2_svc;
155 break;
156
157 case NFSPROC_WRITE:
158 xdr_argument = (xdrproc_t) xdr_writeargs;
159 xdr_result = (xdrproc_t) xdr_attrstat;
160 local = (nfssvcproc_t) nfsproc_write_2_svc;
161 break;
162
163 case NFSPROC_CREATE:
164 xdr_argument = (xdrproc_t) xdr_createargs;
165 xdr_result = (xdrproc_t) xdr_diropres;
166 local = (nfssvcproc_t) nfsproc_create_2_svc;
167 break;
168
169 case NFSPROC_REMOVE:
170 xdr_argument = (xdrproc_t) xdr_diropargs;
171 xdr_result = (xdrproc_t) xdr_nfsstat;
172 local = (nfssvcproc_t) nfsproc_remove_2_svc;
173 break;
174
175 case NFSPROC_RENAME:
176 xdr_argument = (xdrproc_t) xdr_renameargs;
177 xdr_result = (xdrproc_t) xdr_nfsstat;
178 local = (nfssvcproc_t) nfsproc_rename_2_svc;
179 break;
180
181 case NFSPROC_LINK:
182 xdr_argument = (xdrproc_t) xdr_linkargs;
183 xdr_result = (xdrproc_t) xdr_nfsstat;
184 local = (nfssvcproc_t) nfsproc_link_2_svc;
185 break;
186
187 case NFSPROC_SYMLINK:
188 xdr_argument = (xdrproc_t) xdr_symlinkargs;
189 xdr_result = (xdrproc_t) xdr_nfsstat;
190 local = (nfssvcproc_t) nfsproc_symlink_2_svc;
191 break;
192
193 case NFSPROC_MKDIR:
194 xdr_argument = (xdrproc_t) xdr_createargs;
195 xdr_result = (xdrproc_t) xdr_diropres;
196 local = (nfssvcproc_t) nfsproc_mkdir_2_svc;
197 break;
198
199 case NFSPROC_RMDIR:
200 xdr_argument = (xdrproc_t) xdr_diropargs;
201 xdr_result = (xdrproc_t) xdr_nfsstat;
202 local = (nfssvcproc_t) nfsproc_rmdir_2_svc;
203 break;
204
205 case NFSPROC_READDIR:
206 xdr_argument = (xdrproc_t) xdr_readdirargs;
207 xdr_result = (xdrproc_t) xdr_readdirres;
208 local = (nfssvcproc_t) nfsproc_readdir_2_svc;
209 break;
210
211 case NFSPROC_STATFS:
212 xdr_argument = (xdrproc_t) xdr_nfs_fh;
213 xdr_result = (xdrproc_t) xdr_statfsres;
214 local = (nfssvcproc_t) nfsproc_statfs_2_svc;
215 break;
216
217 default:
218 svcerr_noproc(transp);
219 return;
220 }
221
222 memset((char *) &argument, 0, sizeof(argument));
223 if (!svc_getargs(transp,
224 (XDRPROC_T_TYPE) xdr_argument,
225 (SVC_IN_ARG_TYPE) &argument)) {
226 plog(XLOG_ERROR,
227 "NFS xdr decode failed for %d %d %d",
228 (int) rqstp->rq_prog, (int) rqstp->rq_vers, (int) rqstp->rq_proc);
229 svcerr_decode(transp);
230 return;
231 }
232 result = (*local) (&argument, rqstp);
233
234 nfs_program_2_transp = NULL;
235
236 if (result != NULL && !svc_sendreply(transp,
237 (XDRPROC_T_TYPE) xdr_result,
238 result)) {
239 svcerr_systemerr(transp);
240 }
241 if (!svc_freeargs(transp,
242 (XDRPROC_T_TYPE) xdr_argument,
243 (SVC_IN_ARG_TYPE) & argument)) {
244 plog(XLOG_FATAL, "unable to free rpc arguments in nfs_program_2");
245 going_down(1);
246 }
247 }
248