1 /* $NetBSD: clnt_raw.c,v 1.20 2000/12/10 04:12:03 christos Exp $ */
4 * SPDX-License-Identifier: BSD-3-Clause
6 * Copyright (c) 2009, Sun Microsystems, Inc.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions are met:
11 * - Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
13 * - Redistributions in binary form must reproduce the above copyright notice,
14 * this list of conditions and the following disclaimer in the documentation
15 * and/or other materials provided with the distribution.
16 * - Neither the name of Sun Microsystems, Inc. nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
33 #if defined(LIBC_SCCS) && !defined(lint)
34 static char *sccsid2 = "@(#)clnt_raw.c 1.22 87/08/11 Copyr 1984 Sun Micro";
35 static char *sccsid = "@(#)clnt_raw.c 2.2 88/08/01 4.0 RPCSRC";
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD$");
43 * Copyright (C) 1984, Sun Microsystems, Inc.
45 * Memory based rpc for simple testing and timing.
46 * Interface to create an rpc client and server in the same process.
47 * This lets us similate rpc and get round trip overhead, without
48 * any interference from the kernel.
51 #include "namespace.h"
52 #include "reentrant.h"
60 #include "un-namespace.h"
63 #define MCALL_MSG_SIZE 24
66 * This is the "network" we will be moving stuff over.
68 static struct clntraw_private {
73 struct rpc_msg mashl_rpcmsg;
74 char mashl_callmsg[MCALL_MSG_SIZE];
79 static enum clnt_stat clnt_raw_call(CLIENT *, rpcproc_t, xdrproc_t, void *,
80 xdrproc_t, void *, struct timeval);
81 static void clnt_raw_geterr(CLIENT *, struct rpc_err *);
82 static bool_t clnt_raw_freeres(CLIENT *, xdrproc_t, void *);
83 static void clnt_raw_abort(CLIENT *);
84 static bool_t clnt_raw_control(CLIENT *, u_int, void *);
85 static void clnt_raw_destroy(CLIENT *);
86 static struct clnt_ops *clnt_raw_ops(void);
89 * Create a client handle for memory based rpc.
92 clnt_raw_create(rpcprog_t prog, rpcvers_t vers)
94 struct clntraw_private *clp;
95 struct rpc_msg call_msg;
99 mutex_lock(&clntraw_lock);
100 if ((clp = clntraw_private) == NULL) {
101 clp = (struct clntraw_private *)calloc(1, sizeof (*clp));
103 mutex_unlock(&clntraw_lock);
106 if (__rpc_rawcombuf == NULL)
108 (char *)calloc(UDPMSGSIZE, sizeof (char));
109 clp->_raw_buf = __rpc_rawcombuf;
110 clntraw_private = clp;
112 xdrs = &clp->xdr_stream;
113 client = &clp->client_object;
116 * pre-serialize the static part of the call msg and stash it away
118 call_msg.rm_direction = CALL;
119 call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION;
120 /* XXX: prog and vers have been long historically :-( */
121 call_msg.rm_call.cb_prog = (u_int32_t)prog;
122 call_msg.rm_call.cb_vers = (u_int32_t)vers;
123 xdrmem_create(xdrs, clp->u.mashl_callmsg, MCALL_MSG_SIZE, XDR_ENCODE);
124 if (! xdr_callhdr(xdrs, &call_msg))
125 warnx("clntraw_create - Fatal header serialization error.");
126 clp->mcnt = XDR_GETPOS(xdrs);
130 * Set xdrmem for client/server shared buffer
132 xdrmem_create(xdrs, clp->_raw_buf, UDPMSGSIZE, XDR_FREE);
135 * create client handle
137 client->cl_ops = clnt_raw_ops();
138 client->cl_auth = authnone_create();
139 mutex_unlock(&clntraw_lock);
144 static enum clnt_stat
145 clnt_raw_call(CLIENT *h, rpcproc_t proc, xdrproc_t xargs, void *argsp,
146 xdrproc_t xresults, void *resultsp, struct timeval timeout)
148 struct clntraw_private *clp = clntraw_private;
149 XDR *xdrs = &clp->xdr_stream;
151 enum clnt_stat status;
152 struct rpc_err error;
156 mutex_lock(&clntraw_lock);
158 mutex_unlock(&clntraw_lock);
161 mutex_unlock(&clntraw_lock);
167 xdrs->x_op = XDR_ENCODE;
169 clp->u.mashl_rpcmsg.rm_xid ++ ;
170 if ((! XDR_PUTBYTES(xdrs, clp->u.mashl_callmsg, clp->mcnt)) ||
171 (! XDR_PUTINT32(xdrs, &proc)) ||
172 (! AUTH_MARSHALL(h->cl_auth, xdrs)) ||
173 (! (*xargs)(xdrs, argsp))) {
174 return (RPC_CANTENCODEARGS);
176 (void)XDR_GETPOS(xdrs); /* called just to cause overhead */
179 * We have to call server input routine here because this is
180 * all going on in one process. Yuk.
182 svc_getreq_common(FD_SETSIZE);
187 xdrs->x_op = XDR_DECODE;
189 msg.acpted_rply.ar_verf = _null_auth;
190 msg.acpted_rply.ar_results.where = resultsp;
191 msg.acpted_rply.ar_results.proc = xresults;
192 if (! xdr_replymsg(xdrs, &msg)) {
194 * It's possible for xdr_replymsg() to fail partway
195 * through its attempt to decode the result from the
196 * server. If this happens, it will leave the reply
197 * structure partially populated with dynamically
198 * allocated memory. (This can happen if someone uses
199 * clntudp_bufcreate() to create a CLIENT handle and
200 * specifies a receive buffer size that is too small.)
201 * This memory must be free()ed to avoid a leak.
204 xdrs->x_op = XDR_FREE;
205 xdr_replymsg(xdrs, &msg);
207 return (RPC_CANTDECODERES);
209 _seterr_reply(&msg, &error);
210 status = error.re_status;
212 if (status == RPC_SUCCESS) {
213 if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) {
214 status = RPC_AUTHERROR;
216 } /* end successful completion */
218 if (AUTH_REFRESH(h->cl_auth, &msg))
220 } /* end of unsuccessful completion */
222 if (status == RPC_SUCCESS) {
223 if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) {
224 status = RPC_AUTHERROR;
226 if (msg.acpted_rply.ar_verf.oa_base != NULL) {
227 xdrs->x_op = XDR_FREE;
228 (void)xdr_opaque_auth(xdrs, &(msg.acpted_rply.ar_verf));
237 clnt_raw_geterr(CLIENT *cl, struct rpc_err *err)
244 clnt_raw_freeres(CLIENT *cl, xdrproc_t xdr_res, void *res_ptr)
246 struct clntraw_private *clp = clntraw_private;
247 XDR *xdrs = &clp->xdr_stream;
250 mutex_lock(&clntraw_lock);
252 rval = (bool_t) RPC_FAILED;
253 mutex_unlock(&clntraw_lock);
256 mutex_unlock(&clntraw_lock);
257 xdrs->x_op = XDR_FREE;
258 return ((*xdr_res)(xdrs, res_ptr));
263 clnt_raw_abort(CLIENT *cl)
269 clnt_raw_control(CLIENT *cl, u_int ui, void *str)
276 clnt_raw_destroy(CLIENT *cl)
280 static struct clnt_ops *
283 static struct clnt_ops ops;
285 /* VARIABLES PROTECTED BY ops_lock: ops */
287 mutex_lock(&ops_lock);
288 if (ops.cl_call == NULL) {
289 ops.cl_call = clnt_raw_call;
290 ops.cl_abort = clnt_raw_abort;
291 ops.cl_geterr = clnt_raw_geterr;
292 ops.cl_freeres = clnt_raw_freeres;
293 ops.cl_destroy = clnt_raw_destroy;
294 ops.cl_control = clnt_raw_control;
296 mutex_unlock(&ops_lock);